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Custom groupbox control not painting correctly when added to tabpage

I have a groupbox which I created a custom paint event for so that I
can control the border color.
It works great when the groupbox is on a form but when the groupbox is
on a tabpage, the control does not paint properly. Everything is blurry
and the child controls inside the groupbox are also blurry and get a border
drawn.
Any gentle help would be greatly appreciated!
Thanks,
Dan
using System.Drawing;
using System.Windows.Forms;
namespace CustomGroupBoxPaint
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
///////////////////////////////////////////////////////////////////////
private void groupBox_Paint(object sender, PaintEventArgs e)
{
// Default border line color
Color lineColor = Color.LightGray;
// Get the control
GroupBox gb = (GroupBox)sender;
// Figure out which color to use
if (gb.Enabled == true)
{
// User black line
lineColor = Color.Black;
}
else
{
// Use dark gray color
lineColor = Color.DarkGray;
}
//get the text size in groupbox
System.Drawing.Size tSize = TextRenderer.MeasureText(e.Graphics, gb.Text, gb.Font);
// Draw groupbox border
Rectangle borderRect = e.ClipRectangle;
borderRect.Y = (borderRect.Y + (tSize.Height / 2));
borderRect.Height = (borderRect.Height - (tSize.Height / 2));
ControlPaint.DrawBorder(e.Graphics, borderRect, lineColor, ButtonBorderStyle.Solid);
// Draw groupbox text
Rectangle textRect = e.ClipRectangle;
textRect.X = (textRect.X + 6);
textRect.Width = tSize.Width + 5;
textRect.Height = tSize.Height;
e.Graphics.FillRectangle(new SolidBrush(gb.BackColor), textRect);
TextRenderer.DrawText(e.Graphics, gb.Text, gb.Font, textRect, gb.ForeColor);
}
}
}
namespace CustomGroupBoxPaint
{
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.tabControl1 = new System.Windows.Forms.TabControl();
this.tabPage1 = new System.Windows.Forms.TabPage();
this.groupBox2 = new System.Windows.Forms.GroupBox();
this.checkBox2 = new System.Windows.Forms.CheckBox();
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.checkBox1 = new System.Windows.Forms.CheckBox();
this.tabPage2 = new System.Windows.Forms.TabPage();
this.groupBox3 = new System.Windows.Forms.GroupBox();
this.checkBox3 = new System.Windows.Forms.CheckBox();
this.groupBox4 = new System.Windows.Forms.GroupBox();
this.checkBox4 = new System.Windows.Forms.CheckBox();
this.tabControl1.SuspendLayout();
this.tabPage1.SuspendLayout();
this.groupBox2.SuspendLayout();
this.groupBox1.SuspendLayout();
this.groupBox3.SuspendLayout();
this.groupBox4.SuspendLayout();
this.SuspendLayout();
//
// tabControl1
//
this.tabControl1.Controls.Add(this.tabPage1);
this.tabControl1.Controls.Add(this.tabPage2);
this.tabControl1.Location = new System.Drawing.Point(40, 24);
this.tabControl1.Name = "tabControl1";
this.tabControl1.SelectedIndex = 0;
this.tabControl1.Size = new System.Drawing.Size(376, 352);
this.tabControl1.TabIndex = 0;
//
// tabPage1
//
this.tabPage1.Controls.Add(this.groupBox2);
this.tabPage1.Controls.Add(this.groupBox1);
this.tabPage1.Location = new System.Drawing.Point(4, 22);
this.tabPage1.Name = "tabPage1";
this.tabPage1.Padding = new System.Windows.Forms.Padding(3);
this.tabPage1.Size = new System.Drawing.Size(368, 326);
this.tabPage1.TabIndex = 0;
this.tabPage1.Text = "tabPage1";
this.tabPage1.UseVisualStyleBackColor = true;
//
// groupBox2
//
this.groupBox2.Controls.Add(this.checkBox2);
this.groupBox2.Enabled = false;
this.groupBox2.Location = new System.Drawing.Point(52, 168);
this.groupBox2.Name = "groupBox2";
this.groupBox2.Size = new System.Drawing.Size(272, 100);
this.groupBox2.TabIndex = 1;
this.groupBox2.TabStop = false;
this.groupBox2.Text = "DisabledGBTabPage";
this.groupBox2.Paint += new System.Windows.Forms.PaintEventHandler(this.groupBox_Paint);
//
// checkBox2
//
this.checkBox2.AutoSize = true;
this.checkBox2.Location = new System.Drawing.Point(64, 42);
this.checkBox2.Name = "checkBox2";
this.checkBox2.Size = new System.Drawing.Size(80, 17);
this.checkBox2.TabIndex = 1;
this.checkBox2.Text = "checkBox2";
this.checkBox2.UseVisualStyleBackColor = true;
//
// groupBox1
//
this.groupBox1.Controls.Add(this.checkBox1);
this.groupBox1.Location = new System.Drawing.Point(48, 32);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new System.Drawing.Size(272, 100);
this.groupBox1.TabIndex = 0;
this.groupBox1.TabStop = false;
this.groupBox1.Text = "EnabledGBTabPage";
this.groupBox1.Paint += new System.Windows.Forms.PaintEventHandler(this.groupBox_Paint);
//
// checkBox1
//
this.checkBox1.AutoSize = true;
this.checkBox1.Location = new System.Drawing.Point(64, 48);
this.checkBox1.Name = "checkBox1";
this.checkBox1.Size = new System.Drawing.Size(80, 17);
this.checkBox1.TabIndex = 0;
this.checkBox1.Text = "checkBox1";
this.checkBox1.UseVisualStyleBackColor = true;
//
// tabPage2
//
this.tabPage2.Location = new System.Drawing.Point(4, 22);
this.tabPage2.Name = "tabPage2";
this.tabPage2.Padding = new System.Windows.Forms.Padding(3);
this.tabPage2.Size = new System.Drawing.Size(368, 326);
this.tabPage2.TabIndex = 1;
this.tabPage2.Text = "tabPage2";
this.tabPage2.UseVisualStyleBackColor = true;
//
// groupBox3
//
this.groupBox3.Controls.Add(this.checkBox3);
this.groupBox3.Location = new System.Drawing.Point(512, 78);
this.groupBox3.Name = "groupBox3";
this.groupBox3.Size = new System.Drawing.Size(200, 100);
this.groupBox3.TabIndex = 1;
this.groupBox3.TabStop = false;
this.groupBox3.Text = "EnabledGBform";
this.groupBox3.Paint += new System.Windows.Forms.PaintEventHandler(this.groupBox_Paint);
//
// checkBox3
//
this.checkBox3.AutoSize = true;
this.checkBox3.Location = new System.Drawing.Point(60, 42);
this.checkBox3.Name = "checkBox3";
this.checkBox3.Size = new System.Drawing.Size(80, 17);
this.checkBox3.TabIndex = 1;
this.checkBox3.Text = "checkBox3";
this.checkBox3.UseVisualStyleBackColor = true;
//
// groupBox4
//
this.groupBox4.Controls.Add(this.checkBox4);
this.groupBox4.Enabled = false;
this.groupBox4.Location = new System.Drawing.Point(512, 238);
this.groupBox4.Name = "groupBox4";
this.groupBox4.Size = new System.Drawing.Size(200, 100);
this.groupBox4.TabIndex = 2;
this.groupBox4.TabStop = false;
this.groupBox4.Text = "DisabledGBform";
this.groupBox4.Paint += new System.Windows.Forms.PaintEventHandler(this.groupBox_Paint);
//
// checkBox4
//
this.checkBox4.AutoSize = true;
this.checkBox4.Location = new System.Drawing.Point(60, 42);
this.checkBox4.Name = "checkBox4";
this.checkBox4.Size = new System.Drawing.Size(80, 17);
this.checkBox4.TabIndex = 1;
this.checkBox4.Text = "checkBox4";
this.checkBox4.UseVisualStyleBackColor = true;
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(800, 450);
this.Controls.Add(this.groupBox4);
this.Controls.Add(this.groupBox3);
this.Controls.Add(this.tabControl1);
this.Name = "Form1";
this.Text = "Form1";
this.tabControl1.ResumeLayout(false);
this.tabPage1.ResumeLayout(false);
this.groupBox2.ResumeLayout(false);
this.groupBox2.PerformLayout();
this.groupBox1.ResumeLayout(false);
this.groupBox1.PerformLayout();
this.groupBox3.ResumeLayout(false);
this.groupBox3.PerformLayout();
this.groupBox4.ResumeLayout(false);
this.groupBox4.PerformLayout();
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.TabControl tabControl1;
private System.Windows.Forms.TabPage tabPage1;
private System.Windows.Forms.TabPage tabPage2;
private System.Windows.Forms.GroupBox groupBox2;
private System.Windows.Forms.GroupBox groupBox1;
private System.Windows.Forms.GroupBox groupBox3;
private System.Windows.Forms.GroupBox groupBox4;
private System.Windows.Forms.CheckBox checkBox2;
private System.Windows.Forms.CheckBox checkBox1;
private System.Windows.Forms.CheckBox checkBox3;
private System.Windows.Forms.CheckBox checkBox4;
}
}
Screen shot showing problem

c# how does timeSpan work?

I have a timer, how starts, when the text in a label appears and stop when you click on a button. Now i want to stop the reaktiontime and save it in a list, which i want to sort, so i can give out the fastest and lowest reaktiontime in a label. but in my code every time it shows 00:00:00 in the messagebox :(
public partial class Form1 : Form
{
Random r = new Random();
Random Farbe = new Random();
bool Start_MouseClick;
IList<string> Reaktionszeitliste = new List<string>() {};
IList<Color> myColors = new[] { Color.Red, Color.Blue, Color.Green, Color.White, Color.Yellow };
string[] colors = { "Rot", "Blau", "Grün", "Gelb", "Weiß" };
int Timeleft = 5;
int summe = 0, z;
string Reaktionszeit;
int Zeit;
int Spielzuege = 0;
DateTime Time1;
DateTime Time2;
TimeSpan ts;
private void btnRot_Click(object sender, EventArgs e)
{
Spielzuege = Spielzuege + 1;
timMessung.Stop();
if (Start_MouseClick == true)
{
int summe = 0, z;
lblAnzeige.Text = " ";
while (summe <= 0)
{
z = r.Next(1, 6);
summe = summe + z;
}
lblAnzeige.Text += colors[summe - 1] + "\n";
Zeit = 0;
timMessung.Enabled = true;
if (ckbExtrem.Checked == false)
{
lblAnzeige.ForeColor = myColors[Farbe.Next(myColors.Count)];
}
else
{
lblAnzeige.ForeColor = Color.FromArgb(Farbe.Next(256), Farbe.Next(256), Farbe.Next(256));
}
if (Spielzuege == 15)
{
if (txbPlayer2.Text != "")
{
MessageBox.Show("Spieler 2: Machen Sie sich bereit!");
}
else
{
MessageBox.Show(Convert.ToString(ts));
}
}
}
}
private void txbStart_MouseClick(object sender, MouseEventArgs e)
{
if (txbPlayer1.Text == "" && txbPlayer2.Text == "")
{
MessageBox.Show("Bitte geben Sie Spielername(n) ein!");
}
else
{
timVerzögerung.Enabled = true;
panel1.Visible = false;
lblAnzeige.Text = " ";
txbStart.Visible = false;
textBox1.Visible = false;
Start_MouseClick = true;
while (summe <= 0)
{
z = r.Next(1, 6);
summe = summe + z;
}
}
}
private void timMessung_Tick(object sender, EventArgs e)
{
if (timMessung.Enabled == true)
{
Time1 = DateTime.Now;
}
else
{
Time2 = DateTime.Now;
ts = Time1 - Time2;
int differenceInMilli = ts.Milliseconds;
}
}

In a first run i tried to alter your code so that it should run. But i found so many (coding style) issues within there that i simply wrote a completely new example. It also has some minor issues (e.g. size of buttons; it is possible that a color button occurs twice). But it hopefully shows you how TimeSpan and all the other parts can work together.
The Form1.cs file:
public partial class Form1 : Form
{
private Random _Random;
private List<TimeSpan> _ReactionTimes;
private Stopwatch _Stopwatch;
public Form1()
{
InitializeComponent();
_Stopwatch = new Stopwatch();
_Random = new Random(42);
_ReactionTimes = new List<TimeSpan>();
}
private Button CreateButton(Color color)
{
var button = new Button();
button.Click += OnColorButtonClick;
button.BackColor = color;
button.Text = color.Name;
return button;
}
private Button GetRandomButton()
{
var randomIndex = _Random.Next(0, flowLayoutPanel.Controls.Count);
return (Button)flowLayoutPanel.Controls[randomIndex];
}
private Color GetRandomColor()
{
var randomKnownColor = (KnownColor)_Random.Next((int)KnownColor.AliceBlue, (int)KnownColor.ButtonFace);
return Color.FromKnownColor(randomKnownColor);
}
private void InitializeColorButtons(int numberOfColors)
{
var buttons = Enumerable.Range(1, numberOfColors)
.Select(index => GetRandomColor())
.Select(color => CreateButton(color));
foreach (var button in buttons)
{
flowLayoutPanel.Controls.Add(button);
}
}
private void OnButtonStartClick(object sender, EventArgs e)
{
InitializeColorButtons((int)numericUpDownColors.Value);
StartMeasurement();
}
private void OnColorButtonClick(object sender, EventArgs e)
{
var button = (Button)sender;
if (button.Text != labelColorToClick.Text)
{
errorProviderWrongButton.SetIconPadding(button, -20);
errorProviderWrongButton.SetError(button, "Sorry, wrong button.");
return;
}
StopMeasurement();
_ReactionTimes.Add(_Stopwatch.Elapsed);
UpdateSummary();
}
private void StartMeasurement()
{
buttonStart.Enabled = false;
numericUpDownColors.Enabled = false;
labelColorToClick.Text = GetRandomButton().Text;
_Stopwatch.Reset();
_Stopwatch.Start();
}
private void StopMeasurement()
{
_Stopwatch.Stop();
errorProviderWrongButton.Clear();
flowLayoutPanel.Controls.Clear();
numericUpDownColors.Enabled = true;
buttonStart.Enabled = true;
labelColorToClick.Text = String.Empty;
}
private void UpdateSummary()
{
labelSummary.Text = String.Format("Current: {0:0.000} Minimum: {1:0.000} Maximum: {2:0.000}", _ReactionTimes.Last().TotalSeconds, _ReactionTimes.Min().TotalSeconds, _ReactionTimes.Max().TotalSeconds);
}
}
The Form1.Designer.cs file:
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.flowLayoutPanel = new System.Windows.Forms.FlowLayoutPanel();
this.labelColorToClick = new System.Windows.Forms.Label();
this.buttonStart = new System.Windows.Forms.Button();
this.labelSummaryHeader = new System.Windows.Forms.Label();
this.labelSummary = new System.Windows.Forms.Label();
this.errorProviderWrongButton = new System.Windows.Forms.ErrorProvider(this.components);
this.numericUpDownColors = new System.Windows.Forms.NumericUpDown();
((System.ComponentModel.ISupportInitialize)(this.errorProviderWrongButton)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.numericUpDownColors)).BeginInit();
this.SuspendLayout();
//
// flowLayoutPanel
//
this.flowLayoutPanel.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.flowLayoutPanel.Location = new System.Drawing.Point(12, 41);
this.flowLayoutPanel.Name = "flowLayoutPanel";
this.flowLayoutPanel.Size = new System.Drawing.Size(560, 386);
this.flowLayoutPanel.TabIndex = 0;
//
// labelColorToClick
//
this.labelColorToClick.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.labelColorToClick.Location = new System.Drawing.Point(174, 12);
this.labelColorToClick.Name = "labelColorToClick";
this.labelColorToClick.Size = new System.Drawing.Size(398, 23);
this.labelColorToClick.TabIndex = 1;
this.labelColorToClick.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
//
// buttonStart
//
this.buttonStart.Location = new System.Drawing.Point(93, 12);
this.buttonStart.Name = "buttonStart";
this.buttonStart.Size = new System.Drawing.Size(75, 23);
this.buttonStart.TabIndex = 2;
this.buttonStart.Text = "Start";
this.buttonStart.UseVisualStyleBackColor = true;
this.buttonStart.Click += new System.EventHandler(this.OnButtonStartClick);
//
// labelSummaryHeader
//
this.labelSummaryHeader.Location = new System.Drawing.Point(12, 430);
this.labelSummaryHeader.Name = "labelSummaryHeader";
this.labelSummaryHeader.Size = new System.Drawing.Size(75, 23);
this.labelSummaryHeader.TabIndex = 3;
this.labelSummaryHeader.Text = "Summary:";
this.labelSummaryHeader.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
//
// labelSummary
//
this.labelSummary.Location = new System.Drawing.Point(93, 430);
this.labelSummary.Name = "labelSummary";
this.labelSummary.Size = new System.Drawing.Size(479, 23);
this.labelSummary.TabIndex = 4;
this.labelSummary.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
//
// errorProviderWrongButton
//
this.errorProviderWrongButton.BlinkStyle = System.Windows.Forms.ErrorBlinkStyle.NeverBlink;
this.errorProviderWrongButton.ContainerControl = this;
//
// numericUpDownColors
//
this.numericUpDownColors.Location = new System.Drawing.Point(12, 14);
this.numericUpDownColors.Minimum = new decimal(new int[] {
2,
0,
0,
0});
this.numericUpDownColors.Name = "numericUpDownColors";
this.numericUpDownColors.Size = new System.Drawing.Size(75, 20);
this.numericUpDownColors.TabIndex = 5;
this.numericUpDownColors.Value = new decimal(new int[] {
10,
0,
0,
0});
//
// Form1
//
this.ClientSize = new System.Drawing.Size(584, 462);
this.Controls.Add(this.numericUpDownColors);
this.Controls.Add(this.labelSummary);
this.Controls.Add(this.labelSummaryHeader);
this.Controls.Add(this.buttonStart);
this.Controls.Add(this.labelColorToClick);
this.Controls.Add(this.flowLayoutPanel);
this.Name = "Form1";
((System.ComponentModel.ISupportInitialize)(this.errorProviderWrongButton)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.numericUpDownColors)).EndInit();
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.FlowLayoutPanel flowLayoutPanel;
private System.Windows.Forms.Label labelColorToClick;
private System.Windows.Forms.Button buttonStart;
private System.Windows.Forms.Label labelSummaryHeader;
private System.Windows.Forms.Label labelSummary;
private System.Windows.Forms.ErrorProvider errorProviderWrongButton;
private System.Windows.Forms.NumericUpDown numericUpDownColors;
}

I think your problem here is that the resolution of DateTime is less than the intervals that you are trying to measure.
Instead of using DateTime, try the following:
Create a private Stopwatch field called stopwatch.
Stopwatch stopwatch = new Stopwatch();
Then change your tick handler to:
private void timMessung_Tick(object sender, EventArgs e)
{
if (timMessung.Enabled == true)
{
stopwatch.Restart();
}
else
{
ts.stopwatch.Elapsed();
}
}
However, I'm also not sure about your logic to do with when you restart the stopwatch. (Where I put stopwatch.Restart().) Do you really want to keep restarting the stopwatch at that point?

use:
ts = Time1.subtract(Time2);
How to calculate datetime diffrence:
How to calculate hours between 2 different dates in c#

C# Listbox Drag and Drop Rows

I'm trying to implement a C# drag and drop row-reorder with a listbox. I've come across some snippets of code on the internet but none seem to be working with my needs.
I want you to show me an example code of how to move rows in ListBox.
Thanks!

The moving of rows is done in methods "listBox1_MouseUp and listBox1_MouseDown.
Use view code to change this:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace Calculator
{
public partial class ComponentMover : Form
{
private Control trackedControl;
private int gridWidth = 100, gridHeight = 20;
private int row;
public ComponentMover()
{
this.InitializeComponent();
this.InitializeDynamic();
}
void draggable_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
if (this.trackedControl == null)
this.trackedControl = (Control)sender;
}
void draggable_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
if (this.trackedControl != null)
{
int x = e.X + this.trackedControl.Location.X;
int y = e.Y + this.trackedControl.Location.Y;
Point moved = new Point(x - x % this.gridWidth, y - y % this.gridHeight);
Console.WriteLine(e.X + ", " + e.Y + ", " + ", " + moved.X + ", " + moved.Y);
if (moved != this.trackedControl.Location)
this.trackedControl.Location = moved;
}
}
void draggable_MouseUp(object sender, MouseEventArgs e)
{
this.trackedControl = null;
}
private void AddDragListeners(Control draggable)
{
draggable.MouseDown += new MouseEventHandler(draggable_MouseDown);
draggable.MouseMove += new MouseEventHandler(draggable_MouseMove);
draggable.MouseUp += new MouseEventHandler(draggable_MouseUp);
}
}
}
Designer code:
namespace Calculator
{
// Designer code.
partial class ComponentMover
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
private void InitializeDynamic()
{
this.AddDragListeners(button1);
this.AddDragListeners(button4);
this.AddDragListeners(domainUpDown1);
this.AddDragListeners(textBox1);
this.AddDragListeners(checkBox1);
this.AddDragListeners(radioButton1);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.button1 = new System.Windows.Forms.Button();
this.button4 = new System.Windows.Forms.Button();
this.domainUpDown1 = new System.Windows.Forms.DomainUpDown();
this.textBox1 = new System.Windows.Forms.TextBox();
this.checkBox1 = new System.Windows.Forms.CheckBox();
this.radioButton1 = new System.Windows.Forms.RadioButton();
this.listBox1 = new System.Windows.Forms.ListBox();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(13, 13);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(75, 23);
this.button1.TabIndex = 0;
this.button1.Text = "button1";
this.button1.UseVisualStyleBackColor = true;
//
// button4
//
this.button4.Location = new System.Drawing.Point(177, 43);
this.button4.Name = "button4";
this.button4.Size = new System.Drawing.Size(75, 23);
this.button4.TabIndex = 3;
this.button4.Text = "button4";
this.button4.UseVisualStyleBackColor = true;
//
// domainUpDown1
//
this.domainUpDown1.Location = new System.Drawing.Point(95, 42);
this.domainUpDown1.Name = "domainUpDown1";
this.domainUpDown1.Size = new System.Drawing.Size(74, 20);
this.domainUpDown1.TabIndex = 4;
this.domainUpDown1.Text = "domainUpDown1";
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(177, 72);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(100, 20);
this.textBox1.TabIndex = 5;
//
// checkBox1
//
this.checkBox1.AutoSize = true;
this.checkBox1.Location = new System.Drawing.Point(281, 13);
this.checkBox1.Name = "checkBox1";
this.checkBox1.Size = new System.Drawing.Size(80, 17);
this.checkBox1.TabIndex = 6;
this.checkBox1.Text = "checkBox1";
this.checkBox1.UseVisualStyleBackColor = true;
//
// radioButton1
//
this.radioButton1.AutoSize = true;
this.radioButton1.Location = new System.Drawing.Point(366, 42);
this.radioButton1.Name = "radioButton1";
this.radioButton1.Size = new System.Drawing.Size(85, 17);
this.radioButton1.TabIndex = 7;
this.radioButton1.TabStop = true;
this.radioButton1.Text = "radioButton1";
this.radioButton1.UseVisualStyleBackColor = true;
//
// listBox1
//
this.listBox1.FormattingEnabled = true;
this.listBox1.Items.AddRange(new object[] {
"word1",
"word2",
"word3"});
this.listBox1.Location = new System.Drawing.Point(13, 42);
this.listBox1.Name = "listBox1";
this.listBox1.Size = new System.Drawing.Size(76, 82);
this.listBox1.TabIndex = 8;
this.listBox1.MouseDown += new System.Windows.Forms.MouseEventHandler(listBox1_MouseDown);
this.listBox1.MouseUp += new System.Windows.Forms.MouseEventHandler(listBox1_MouseUp);
//
// ComponentMover
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(485, 159);
this.Controls.Add(this.listBox1);
this.Controls.Add(this.radioButton1);
this.Controls.Add(this.checkBox1);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.domainUpDown1);
this.Controls.Add(this.button4);
this.Controls.Add(this.button1);
this.Name = "ComponentMover";
this.Text = "ComponentMover";
this.ResumeLayout(false);
this.PerformLayout();
}
void listBox1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{
System.Windows.Forms.ListBox list = (System.Windows.Forms.ListBox)sender;
int swap = list.SelectedIndex;
if(swap != this.row)
{
string temp = (string)list.Items[this.row];
list.Items[this.row] = list.Items[swap];
list.Items[swap] = temp;
}
}
void listBox1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
this.row = ((System.Windows.Forms.ListBox)sender).SelectedIndex;
}
#endregion
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.DomainUpDown domainUpDown1;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.CheckBox checkBox1;
private System.Windows.Forms.RadioButton radioButton1;
private System.Windows.Forms.ListBox listBox1;
}
}

Winforms DataGridView resizing issue

I'm not 100% sure how I should word this question but I'll try my best.
I have a PointCtrlForm that has a DataGridView inside a TableLayoutPanel. The DataGridView is docked to the table as Fill. PointCtrlForm is docked to another window set as MDIParent with the dockstyle property set as Fill.
Resizing the main window properly resizes the PointCtrlForm, which then is supposed to resize the DataGridView as well. Well, at least "half" of the resizing works properly. Enlarging the main window also enlarges the datagridview, which is what I expected but if I shrink the main window to a certain point, the DataGridView stops shrinking and hides the columns without showing a scrollbar.
I've checked that all columns do not have Frozen property enabled, checked that both the datagridview and the child window is properly docked, and checked the scrollbars property is set to both.
Edit: AutoSizeColumnsMode is also fill.
I'll post the content of the Designer.cs here. I'd appreciate any guidance.
namespace DDCUI
{
partial class PointCtrlForm
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.tableLayoutPanel1 = new System.Windows.Forms.TableLayoutPanel();
this.CmbSubDevice = new System.Windows.Forms.ComboBox();
this.BtnBack = new System.Windows.Forms.Button();
this.CmbMainDevice = new System.Windows.Forms.ComboBox();
this.dataGridView1 = new System.Windows.Forms.DataGridView();
this.BtnRefresh = new System.Windows.Forms.Button();
this.label1 = new System.Windows.Forms.Label();
this.ID = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.PointName = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.Value = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.Description = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.DefaultValue = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.ActiveString = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.InactiveString = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.AlarmCondition = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.tableLayoutPanel1.SuspendLayout();
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
this.SuspendLayout();
//
// tableLayoutPanel1
//
this.tableLayoutPanel1.ColumnCount = 6;
this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 100F));
this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 100F));
this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 100F));
this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 100F));
this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 151F));
this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 88F));
this.tableLayoutPanel1.Controls.Add(this.CmbSubDevice, 0, 1);
this.tableLayoutPanel1.Controls.Add(this.BtnBack, 0, 0);
this.tableLayoutPanel1.Controls.Add(this.CmbMainDevice, 0, 1);
this.tableLayoutPanel1.Controls.Add(this.dataGridView1, 0, 2);
this.tableLayoutPanel1.Controls.Add(this.BtnRefresh, 4, 1);
this.tableLayoutPanel1.Controls.Add(this.label1, 5, 1);
this.tableLayoutPanel1.Dock = System.Windows.Forms.DockStyle.Fill;
this.tableLayoutPanel1.Location = new System.Drawing.Point(0, 0);
this.tableLayoutPanel1.Name = "tableLayoutPanel1";
this.tableLayoutPanel1.RowCount = 3;
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 67.02128F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 32.97872F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 368F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.Size = new System.Drawing.Size(639, 467);
this.tableLayoutPanel1.TabIndex = 0;
//
// CmbSubDevice
//
this.tableLayoutPanel1.SetColumnSpan(this.CmbSubDevice, 2);
this.CmbSubDevice.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.CmbSubDevice.Font = new System.Drawing.Font("굴림", 12F);
this.CmbSubDevice.FormattingEnabled = true;
this.CmbSubDevice.Location = new System.Drawing.Point(203, 69);
this.CmbSubDevice.Name = "CmbSubDevice";
this.CmbSubDevice.Size = new System.Drawing.Size(194, 24);
this.CmbSubDevice.TabIndex = 3;
//
// BtnBack
//
this.BtnBack.Location = new System.Drawing.Point(3, 3);
this.BtnBack.Name = "BtnBack";
this.BtnBack.Size = new System.Drawing.Size(94, 54);
this.BtnBack.TabIndex = 0;
this.BtnBack.Text = "Back";
this.BtnBack.UseVisualStyleBackColor = true;
this.BtnBack.Click += new System.EventHandler(this.BtnBack_Click);
//
// CmbMainDevice
//
this.tableLayoutPanel1.SetColumnSpan(this.CmbMainDevice, 2);
this.CmbMainDevice.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.CmbMainDevice.Font = new System.Drawing.Font("굴림", 12F);
this.CmbMainDevice.FormattingEnabled = true;
this.CmbMainDevice.Items.AddRange(new object[] {
"I/O",
"VIRTUAL",
"SAC",
"MODBUS",
"NATIONAL",
"TOSHIBA",
"SCHEDULE",
"SYSTEM ALARM",
"LOGIC",
"GROUP"});
this.CmbMainDevice.Location = new System.Drawing.Point(3, 69);
this.CmbMainDevice.Name = "CmbMainDevice";
this.CmbMainDevice.Size = new System.Drawing.Size(194, 24);
this.CmbMainDevice.TabIndex = 2;
this.CmbMainDevice.SelectedIndexChanged += new System.EventHandler(this.CmbMainDevice_SelectedIndexChanged);
//
// dataGridView1
//
this.dataGridView1.AutoSizeColumnsMode = System.Windows.Forms.DataGridViewAutoSizeColumnsMode.Fill;
this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dataGridView1.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
this.ID,
this.PointName,
this.Value,
this.Description,
this.DefaultValue,
this.ActiveString,
this.InactiveString,
this.AlarmCondition});
this.tableLayoutPanel1.SetColumnSpan(this.dataGridView1, 6);
this.dataGridView1.Dock = System.Windows.Forms.DockStyle.Fill;
this.dataGridView1.Location = new System.Drawing.Point(3, 101);
this.dataGridView1.Name = "dataGridView1";
this.dataGridView1.RowTemplate.Height = 23;
this.dataGridView1.Size = new System.Drawing.Size(633, 363);
this.dataGridView1.TabIndex = 5;
//
// BtnRefresh
//
this.BtnRefresh.Location = new System.Drawing.Point(403, 69);
this.BtnRefresh.Name = "BtnRefresh";
this.BtnRefresh.Size = new System.Drawing.Size(94, 26);
this.BtnRefresh.TabIndex = 6;
this.BtnRefresh.Text = "Refresh";
this.BtnRefresh.UseVisualStyleBackColor = true;
//
// label1
//
this.label1.AutoSize = true;
this.label1.Dock = System.Windows.Forms.DockStyle.Fill;
this.label1.Font = new System.Drawing.Font("굴림", 12F);
this.label1.Location = new System.Drawing.Point(554, 66);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(82, 32);
this.label1.TabIndex = 7;
this.label1.Text = "XXX 개";
this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// ID
//
this.ID.FillWeight = 70F;
this.ID.HeaderText = "ID";
this.ID.Name = "ID";
//
// PointName
//
this.PointName.FillWeight = 70F;
this.PointName.HeaderText = "이름";
this.PointName.Name = "PointName";
//
// Value
//
this.Value.FillWeight = 70F;
this.Value.HeaderText = "값";
this.Value.Name = "Value";
//
// Description
//
this.Description.FillWeight = 70F;
this.Description.HeaderText = "설명";
this.Description.Name = "Description";
//
// DefaultValue
//
this.DefaultValue.FillWeight = 70F;
this.DefaultValue.HeaderText = "초기값";
this.DefaultValue.Name = "DefaultValue";
//
// ActiveString
//
this.ActiveString.HeaderText = "Active문자열";
this.ActiveString.Name = "ActiveString";
//
// InactiveString
//
this.InactiveString.HeaderText = "InActive문자열";
this.InactiveString.Name = "InactiveString";
//
// AlarmCondition
//
this.AlarmCondition.HeaderText = "알람조건";
this.AlarmCondition.Name = "AlarmCondition";
//
// PointCtrlForm
//
this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(639, 467);
this.Controls.Add(this.tableLayoutPanel1);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
this.Name = "PointCtrlForm";
this.Text = "LG-DDC";
this.tableLayoutPanel1.ResumeLayout(false);
this.tableLayoutPanel1.PerformLayout();
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.TableLayoutPanel tableLayoutPanel1;
private System.Windows.Forms.Button BtnBack;
private System.Windows.Forms.ComboBox CmbMainDevice;
private System.Windows.Forms.ComboBox CmbSubDevice;
private System.Windows.Forms.DataGridView dataGridView1;
private System.Windows.Forms.Button BtnRefresh;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.DataGridViewTextBoxColumn ID;
private System.Windows.Forms.DataGridViewTextBoxColumn PointName;
private System.Windows.Forms.DataGridViewTextBoxColumn Value;
private System.Windows.Forms.DataGridViewTextBoxColumn Description;
private System.Windows.Forms.DataGridViewTextBoxColumn DefaultValue;
private System.Windows.Forms.DataGridViewTextBoxColumn ActiveString;
private System.Windows.Forms.DataGridViewTextBoxColumn InactiveString;
private System.Windows.Forms.DataGridViewTextBoxColumn AlarmCondition;
}
}

I've found the solution and it's rather simple.
The row and column sizes for the DGV has to be set "percentage (relative)" not "absolute" in order for the docking to work properly.
You can edit the sizes by right clicking on one of the cells of the DGV and clicking on Edit Row/Column Properties.

Picturebox draws artefacts when in RightToLeft mode

When PictureBox have parent ListView and ListView RightToLeft set to true/yes I received some artifacts on drawing.
Why this happens and how remove this artifacts?
Images
http://i.stack.imgur.com/kx0zQ.png
http://i.stack.imgur.com/E5il3.png
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
void DrawOnPictureBox(PictureBox pc)
{
int delta;
int.TryParse((string)comboBox1.SelectedItem, out delta);
pc.Width = 100;
pc.Height = 40;
if (pc.Image == null)
pc.Image = new Bitmap(pc.Width, pc.Height);
else
if (pc.Image.Width != pc.Width || pc.Image.Height != pc.Height)
pc.Image = new Bitmap(pc.Width, pc.Height);
Graphics gr = Graphics.FromImage(pc.Image);
gr.Clear(Color.White);
int paintWidth = pc.Width - 1;
int paintHeight = pc.Height - 1;
PointF[] points = new PointF[4];
points[0] = new PointF(delta, paintHeight - 1);
points[1] = new PointF(paintWidth - delta, paintHeight - 1);
points[2] = new PointF(paintWidth - delta, 0);
points[3] = new PointF(delta, 0);
//gr.DrawPolygon(new Pen(Color.Black), points);
/**/
gr.DrawLine(new Pen(Color.Black), points[0], points[1]);
gr.DrawLine(new Pen(Color.Black), points[1], points[2]);
gr.DrawLine(new Pen(Color.Black), points[2], points[3]);
gr.DrawLine(new Pen(Color.Black), points[3], points[0]);
/**/
gr.DrawString("1", this.Font, new SolidBrush(Color.Black), 10, 10);
}
private void button1_Click(object sender, EventArgs e)
{
pictureBox1.Parent = listView1;
DrawOnPictureBox(pictureBox1);
pictureBox2.Parent = listView2;
DrawOnPictureBox(pictureBox2);
pictureBox3.Parent = listView3;
DrawOnPictureBox(pictureBox3);
}
private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
if (checkBox1.Checked)
{
listView1.RightToLeft = System.Windows.Forms.RightToLeft.Yes;
listView1.RightToLeftLayout = true;
listView2.RightToLeft = System.Windows.Forms.RightToLeft.Yes;
listView2.RightToLeftLayout = true;
listView3.RightToLeft = System.Windows.Forms.RightToLeft.Yes;
listView3.RightToLeftLayout = true;
}
else
{
listView1.RightToLeft = System.Windows.Forms.RightToLeft.No;
listView1.RightToLeftLayout = false;
listView2.RightToLeft = System.Windows.Forms.RightToLeft.No;
listView2.RightToLeftLayout = false;
listView3.RightToLeft = System.Windows.Forms.RightToLeft.No;
listView3.RightToLeftLayout = false;
}
}
}
namespace WindowsFormsApplication2
{
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.button1 = new System.Windows.Forms.Button();
this.checkBox1 = new System.Windows.Forms.CheckBox();
this.listView1 = new System.Windows.Forms.ListView();
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.listView2 = new System.Windows.Forms.ListView();
this.pictureBox2 = new System.Windows.Forms.PictureBox();
this.listView3 = new System.Windows.Forms.ListView();
this.pictureBox3 = new System.Windows.Forms.PictureBox();
this.comboBox1 = new System.Windows.Forms.ComboBox();
((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.pictureBox2)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.pictureBox3)).BeginInit();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(357, 23);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(75, 23);
this.button1.TabIndex = 1;
this.button1.Text = "button1";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// checkBox1
//
this.checkBox1.AutoSize = true;
this.checkBox1.Location = new System.Drawing.Point(481, 35);
this.checkBox1.Name = "checkBox1";
this.checkBox1.Size = new System.Drawing.Size(80, 17);
this.checkBox1.TabIndex = 2;
this.checkBox1.Text = "checkBox1";
this.checkBox1.UseVisualStyleBackColor = true;
this.checkBox1.CheckedChanged += new System.EventHandler(this.checkBox1_CheckedChanged);
//
// listView1
//
this.listView1.Location = new System.Drawing.Point(2, 263);
this.listView1.Name = "listView1";
this.listView1.Size = new System.Drawing.Size(317, 364);
this.listView1.TabIndex = 3;
this.listView1.UseCompatibleStateImageBehavior = false;
//
// pictureBox1
//
this.pictureBox1.Location = new System.Drawing.Point(24, 280);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(130, 99);
this.pictureBox1.TabIndex = 0;
this.pictureBox1.TabStop = false;
//
// listView2
//
this.listView2.Location = new System.Drawing.Point(394, 55);
this.listView2.Name = "listView2";
this.listView2.Size = new System.Drawing.Size(538, 426);
this.listView2.TabIndex = 4;
this.listView2.UseCompatibleStateImageBehavior = false;
//
// pictureBox2
//
this.pictureBox2.Location = new System.Drawing.Point(407, 69);
this.pictureBox2.Name = "pictureBox2";
this.pictureBox2.Size = new System.Drawing.Size(130, 397);
this.pictureBox2.TabIndex = 5;
this.pictureBox2.TabStop = false;
//
// listView3
//
this.listView3.Location = new System.Drawing.Point(2, 3);
this.listView3.Name = "listView3";
this.listView3.Size = new System.Drawing.Size(183, 155);
this.listView3.TabIndex = 6;
this.listView3.UseCompatibleStateImageBehavior = false;
//
// pictureBox3
//
this.pictureBox3.Location = new System.Drawing.Point(2, 3);
this.pictureBox3.Name = "pictureBox3";
this.pictureBox3.Size = new System.Drawing.Size(183, 155);
this.pictureBox3.TabIndex = 7;
this.pictureBox3.TabStop = false;
//
// comboBox1
//
this.comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboBox1.FormattingEnabled = true;
this.comboBox1.Items.AddRange(new object[] {
"0",
"1",
"5",
"10"});
this.comboBox1.Location = new System.Drawing.Point(216, 55);
this.comboBox1.Name = "comboBox1";
this.comboBox1.Size = new System.Drawing.Size(120, 21);
this.comboBox1.TabIndex = 8;
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(951, 627);
this.Controls.Add(this.comboBox1);
this.Controls.Add(this.pictureBox2);
this.Controls.Add(this.pictureBox1);
this.Controls.Add(this.pictureBox3);
this.Controls.Add(this.listView2);
this.Controls.Add(this.listView1);
this.Controls.Add(this.checkBox1);
this.Controls.Add(this.button1);
this.Controls.Add(this.listView3);
this.Name = "Form1";
this.Text = "Form1";
((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.pictureBox2)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.pictureBox3)).EndInit();
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.Button button1;
private System.Windows.Forms.CheckBox checkBox1;
private System.Windows.Forms.ListView listView1;
private System.Windows.Forms.PictureBox pictureBox1;
private System.Windows.Forms.ListView listView2;
private System.Windows.Forms.PictureBox pictureBox2;
private System.Windows.Forms.ListView listView3;
private System.Windows.Forms.PictureBox pictureBox3;
private System.Windows.Forms.ComboBox comboBox1;
}
}

I noticed that artefacts appeared only when draw near the borders of picturebox.
I don't agree that is border-artefacts.
Temporary (approximately for 100 years :) solved with this hack
pictureBox.Location = new Point(-1, -1);
int delta = 2;
int paintWidth = pictureBox.Width - delta;
int paintHeight = pictureBox.Height - delta;
...
points[0] = new PointF(hLenL + delta, paintHeight);
points[1] = new PointF(paintWidth - hLenR, paintHeight);
points[2] = new PointF(paintWidth, delta);
points[3] = new PointF(delta, delta);