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Sliding panels - one works, the others don't

I've run into a bit of a wall and I don't know how I've managed to stuff it up. I'm trying to have multiple panels on my application in C# and each slides in and out from the menu along the side. I've written a separate slide class:
class Slide
{
Panel pane;
Button btn;
bool hidden;
Timer t;
const int maxWidth = 315;
public Slide(Panel p, Button b)
{
this.pane = p;
this.btn = b;
hidden = true;
btn.Click += new EventHandler(btnClick);
t = new Timer();
t.Interval = 15;
t.Tick += new EventHandler(timeTick);
}
private void timeTick(object sender, EventArgs e)
{
if(hidden)
{
SlidingPane(+10);
}
else
{
SlidingPane(-10);
}
}
private void btnClick(object sender, EventArgs e)
{
t.Start();
}
private void SlidingPane(int i)
{
pane.Width += i;
if(pane.Width >= maxWidth || pane.Width <= 0)
{
t.Stop();
hidden = !hidden;
}
}
}
And I've initialised the panels as follows:
Slide menuP, calendarP, peopleP, taskP, settingsP;
public Form1()
{
InitializeComponent();
ButtonColours();
InitialisePanes();
}
private void InitialisePanes()
{
menuP = new Slide(menuPane, menuButton);
calendarP = new Slide(calendarPane, calendarButton);
peopleP = new Slide(peoplePane, peopleButton);
taskP = new Slide(taskPane, toDoButton);
settingsP = new Slide(settingsPane, settingsButton);
}
And here's the Form designer code for the working panel:
this.menuPane.BackColor = System.Drawing.Color.SlateGray;
this.menuPane.Controls.Add(this.peoplePane);
this.menuPane.Dock = System.Windows.Forms.DockStyle.Left;
this.menuPane.Location = new System.Drawing.Point(67, 0);
this.menuPane.Name = "menuPane";
this.menuPane.Size = new System.Drawing.Size(0, 652);
this.menuPane.TabIndex = 2;
And the others are exactly the same. Eg:
this.peoplePane.BackColor = System.Drawing.Color.SlateGray;
this.peoplePane.Controls.Add(this.calendarPane);
this.peoplePane.Dock = System.Windows.Forms.DockStyle.Left;
this.peoplePane.Location = new System.Drawing.Point(67, 0);
this.peoplePane.Name = "peoplePane";
this.peoplePane.Size = new System.Drawing.Size(0, 652);
this.peoplePane.TabIndex = 2;
I've started up my application and I click on the menuButton, it works. Slides in and out beautifully. I click on the others and....nothing happens.
Can anyone see why this is happening? Everything I'm looking at tells me that it should be working.

To make sure all panes are correctly aligned with each other and (not) nested you could use code like this:
foreach( Control ctl in new[] { peoplePane, calendarPane, taskPane, settingsPane })
{
ctl.Parent = menuPane.Parent;
ctl.Location = menuPane.Location;
}
It assumes that menuPane is at the right spot and makes all others sit right on top without nesting them.
The code you posted contained incorrect nesting and moving panels to the same spot with the mouse will also create (in this case unwanted) nesting. Moving with the keyboard avoids it but is tedious.

How to Pass and Set values to Usercontrol in wpf

How to Pass and Set values to Usercontrol.
Here I have two question regarding a WPF project.
Overview:
In this project, I'm trying to use a Usercontrol as a resources on a canvas and connecting them with each other by LineGeometry. 'MyThumb' class i'm using to make control dragable and control set values.
where i'm using overrided 'OnApplyTemplate' method to pass values on the Usercontrol. To set value i'm using 'Template.FindName'. Here it is returning null.
Now the question is 'how to set values on usercontrol' in the code below:
Another question is related to line color. In the project i'm using LineGeometry to display lines between usercontrols but not able to change line colors.. want to set different lines with different color.
Here the question is how to change color of existing LineGeometry.
Please have a look to the codes i'm using:
Mythumb.cs
public class MyThumb : Thumb
{
#region Properties
public static readonly DependencyProperty TitleProperty = DependencyProperty.Register("Title", typeof(string), typeof(MyThumb), new UIPropertyMetadata(""));
public static readonly DependencyProperty ImageSourceProperty = DependencyProperty.Register("ImageSource", typeof(string), typeof(MyThumb), new UIPropertyMetadata(""));
// This property will hanlde the content of the textblock element taken from control template
public string Title
{
get { return (string)GetValue(TitleProperty); }
set { SetValue(TitleProperty, value); }
}
// This property will handle the content of the image element taken from control template
public string ImageSource
{
get { return (string)GetValue(ImageSourceProperty); }
set { SetValue(ImageSourceProperty, value); }
}
public Point MyLocation
{
get
{
Point nm = new Point(Canvas.GetLeft(this), Canvas.GetTop(this));
return nm;
}
}
public List<LineGeometry> EndLines { get; private set; }
public List<LineGeometry> StartLines { get; private set; }
#endregion
#region Constructors
public MyThumb()
: base()
{
StartLines = new List<LineGeometry>();
EndLines = new List<LineGeometry>();
}
public MyThumb(string title, string imageSource, Point position)
: this()
{
//Setting ControlTemplate as Usercontrol 'ContactNode'
ControlTemplate templatex = new ControlTemplate();
var fec = new FrameworkElementFactory(typeof(ContactNode));
templatex.VisualTree = fec;
this.Template = templatex;
this.Title = (title != null) ? title : string.Empty;
this.ImageSource = (imageSource != null) ? imageSource : string.Empty;
this.SetPosition(position);
}
public MyThumb( string title, string imageSource, Point position, DragDeltaEventHandler dragDelta)
: this(title, imageSource, position)
{
this.DragDelta += dragDelta;
}
#endregion
// Helper method for setting the position of our thumb
public void SetPosition(Point value)
{
Canvas.SetLeft(this, value.X);
Canvas.SetTop(this, value.Y);
}
#region Linking logic
// This method establishes a link between current thumb and specified thumb.
// Returns a line geometry with updated positions to be processed outside.
public LineGeometry LinkTo(MyThumb target)
{
// Create new line geometry
LineGeometry line = new LineGeometry();
// Save as starting line for current thumb
this.StartLines.Add(line);
// Save as ending line for target thumb
target.EndLines.Add(line);
// Ensure both tumbs the latest layout
this.UpdateLayout();
target.UpdateLayout();
// Update line position
line.StartPoint = new Point(Canvas.GetLeft(this) + this.ActualWidth / 2, Canvas.GetTop(this) + this.ActualHeight / 2);
line.EndPoint = new Point(Canvas.GetLeft(target) + target.ActualWidth / 2, Canvas.GetTop(target) + target.ActualHeight / 2);
// return line for further processing
return line;
}
// This method establishes a link between current thumb and target thumb using a predefined line geometry
// Note: this is commonly to be used for drawing links with mouse when the line object is predefined outside this class
public bool LinkTo(MyThumb target, LineGeometry line)
{
// Save as starting line for current thumb
this.StartLines.Add(line);
// Save as ending line for target thumb
target.EndLines.Add(line);
// Ensure both tumbs the latest layout
this.UpdateLayout();
target.UpdateLayout();
// Update line position
line.StartPoint = new Point(Canvas.GetLeft(this) + this.ActualWidth / 2, Canvas.GetTop(this) + this.ActualHeight / 2);
line.EndPoint = new Point(Canvas.GetLeft(target) + target.ActualWidth / 2, Canvas.GetTop(target) + target.ActualHeight / 2);
return true;
}
#endregion
// This method updates all the starting and ending lines assigned for the given thumb
// according to the latest known thumb position on the canvas
public void UpdateLinks()
{
double left = Canvas.GetLeft(this);
double top = Canvas.GetTop(this);
for (int i = 0; i < this.StartLines.Count; i++)
this.StartLines[i].StartPoint = new Point(left + this.ActualWidth / 2, top + this.ActualHeight / 2);
for (int i = 0; i < this.EndLines.Count; i++)
this.EndLines[i].EndPoint = new Point(left + this.ActualWidth / 2, top + this.ActualHeight / 2);
}
// Upon applying template we apply the "Title" and "ImageSource" properties to the template elements.
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
// Access the textblock element of template and assign it if Title property defined
if (this.Title != string.Empty)
{
TextBlock txt = this.Template.FindName("tplTextBlock", this) as TextBlock;
if (txt != null) //getting null here unable to find element..
txt.Text = Title;
}
// Access the image element of our custom template and assign it if ImageSource property defined
if (this.ImageSource != string.Empty)
{
Image img = this.Template.FindName("tplImage", this) as Image;
if (img != null)
img.Source = new BitmapImage(new Uri(this.ImageSource, UriKind.Relative));
}
}
}
Window1.xaml.cs
public partial class Window1 : Window
{
// flag for enabling "New thumb" mode
bool isAddNewAction = false;
// flag for enabling "New link" mode
bool isAddNewLink = false;
// flag that indicates that the link drawing with a mouse started
bool isLinkStarted = false;
// variable to hold the thumb drawing started from
MyThumb linkedThumb;
// Line drawn by the mouse before connection established
LineGeometry link;
public Window1()
{
InitializeComponent();
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
Point pp = new Point(myCanvas.ActualWidth/2,myCanvas.ActualHeight/2);
AdNewNode(pp, "ACTION", "/Images/gear_connection.png");
this.PreviewMouseLeftButtonDown += new MouseButtonEventHandler(Window1_PreviewMouseLeftButtonDown);
this.PreviewMouseMove += new MouseEventHandler(Window1_PreviewMouseMove);
this.PreviewMouseLeftButtonUp += new MouseButtonEventHandler(Window1_PreviewMouseLeftButtonUp);
}
// Event hanlder for dragging functionality support
private void onDragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
{
// Exit dragging operation during adding new link
if (isAddNewLink) return;
MyThumb thumb = e.Source as MyThumb;
Canvas.SetLeft(thumb, Canvas.GetLeft(thumb) + e.HorizontalChange);
Canvas.SetTop(thumb, Canvas.GetTop(thumb) + e.VerticalChange);
// Update links' layouts for active thumb
thumb.UpdateLinks();
}
// Event handler for creating new thumb element by left mouse click
// and visually connecting it to the myThumb2 element
void AdNewNode(Point nPosition,string nTitle, string nImage)
{
MyThumb newThumb = new MyThumb(
nTitle,
nImage,
nPosition,
onDragDelta);
myCanvas.Children.Add(newThumb);
}
void Window1_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
// If adding new action...
if (isAddNewAction)
{
AdNewNode(e.GetPosition(this), "ACTION", "/Images/gear_connection.png");
// resume common layout for application
isAddNewAction = false;
Mouse.OverrideCursor = null;
btnNewAction.IsEnabled = btnNewLink.IsEnabled = true;
e.Handled = true;
}
// Is adding new link and a thumb object is clicked...
if (isAddNewLink && e.Source.GetType() == typeof(MyThumb))
{
if (!isLinkStarted)
{
if (link == null || link.EndPoint != link.StartPoint)
{
Point position = e.GetPosition(this);
link = new LineGeometry(position, position);
//nodepath=new Path();
//nodepath.Stroke = Brushes.Pink;
//nodepath.Data = link; // Here line color is getting change but connectivity getting lost....
connectors.Children.Add(link);
//myCanvas.Children.Add(nodepath);
isLinkStarted = true;
linkedThumb = e.Source as MyThumb;
e.Handled = true;
}
}
}
}
// Handles the mouse move event when dragging/drawing the new connection link
void Window1_PreviewMouseMove(object sender, MouseEventArgs e)
{
if (isAddNewLink && isLinkStarted)
{
// Set the new link end point to current mouse position
link.EndPoint = e.GetPosition(this);
e.Handled = true;
}
}
// Handles the mouse up event applying the new connection link or resetting it
void Window1_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
// If "Add link" mode enabled and line drawing started (line placed to canvas)
if (isAddNewLink && isLinkStarted)
{
// declare the linking state
bool linked = false;
// We released the button on MyThumb object
if (e.Source.GetType() == typeof(MyThumb))
{
MyThumb targetThumb = e.Source as MyThumb;
// define the final endpoint of line
link.EndPoint = e.GetPosition(this);
// if any line was drawn (avoid just clicking on the thumb)
if (link.EndPoint != link.StartPoint && linkedThumb != targetThumb)
{
// establish connection
linkedThumb.LinkTo(targetThumb, link);
// set linked state to true
//nodepath = new Path();
//nodepath.Stroke = Brushes.Pink;
//nodepath.Data = link;
linked = true;
}
}
// if we didn't manage to approve the linking state
// button is not released on MyThumb object or double-clicking was performed
if (!linked)
{
// remove line from the canvas
//connectors.Children.Remove(link);
// clear the link variable
link = null;
}
// exit link drawing mode
isLinkStarted = isAddNewLink = false;
// configure GUI
btnNewAction.IsEnabled = btnNewLink.IsEnabled = true;
Mouse.OverrideCursor = null;
e.Handled = true;
}
//this.Title = "Links established: " + connectors.Children.Count.ToString();
}
// Event handler for enabling new thumb creation by left mouse button click
private void btnNewAction_Click(object sender, RoutedEventArgs e)
{
isAddNewAction = true;
Mouse.OverrideCursor = Cursors.SizeAll;
btnNewAction.IsEnabled = btnNewLink.IsEnabled = false;
}
private void btnNewLink_Click(object sender, RoutedEventArgs e)
{
isAddNewLink = true;
Mouse.OverrideCursor = Cursors.Cross;
btnNewAction.IsEnabled = btnNewLink.IsEnabled = false;
}
}
Please try to correct me where i'm doing wrong in this code.

How to give focus to the inputbox for ASP.NET in C#？

I was trying to find out how to create an input messagebox in C#.
I found the solution which uses the inputbox of visualbasic.
I will tell how to do for those who are not aware.
Add Microsoft VisualBasic dll to your project. Use the namespace where you need it.
protected void btnUpdateComment_Click(object sender, EventArgs e)
{
string str = Microsoft.VisualBasic.Interaction.InputBox("", "Edit your comment and Click Ok", "Default");
label1.Text = str;
}
You see the codes above are about WinForm. But how to cope with that in an ASP.NET？

Unfortunately C# doesn't have its own implementation of the InputBox method so what you have is correct:
Microsoft.VisualBasic.Interaction.InputBox("How Old are you?","Age Box","22")
However if you add a using statement you can have shorter syntax in your code
using Microsoft.VisualBasic;
public void Message()
{
Interaction.InputBox("How Old are you?","Age Box","22");
}
Here is a duplicate of the question:
What is the C# version of VB.net's InputDialog?
And a Social.Msdn post:
Social MSDN Link

Create A InputBox Class and Use It.
You Won't have Focus problem here
Source
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
namespace WindowsApplication1
{
#region InputBox return result
/// <summary>
/// Class used to store the result of an InputBox.Show message.
/// </summary>
public class InputBoxResult
{
public DialogResult ReturnCode;
public string Text;
}
#endregion
/// <summary>
/// Summary description for InputBox.
/// </summary>
public class InputBox
{
#region Private Windows Contols and Constructor
// Create a new instance of the form.
private static Form frmInputDialog;
private static Label lblPrompt;
private static Button btnOK;
private static Button btnCancel;
private static TextBox txtInput;
public InputBox()
{
}
#endregion
#region Private Variables
private static string _formCaption = string.Empty;
private static string _formPrompt = string.Empty;
private static InputBoxResult _outputResponse = new InputBoxResult();
private static string _defaultValue = string.Empty;
private static int _xPos = -1;
private static int _yPos = -1;
#endregion
#region Windows Form code
private static void InitializeComponent()
{
// Create a new instance of the form.
frmInputDialog = new Form();
lblPrompt = new Label();
btnOK = new Button();
btnCancel = new Button();
txtInput = new TextBox();
frmInputDialog.SuspendLayout();
//
// lblPrompt
//
lblPrompt.Anchor = ((AnchorStyles)((((AnchorStyles.Top | AnchorStyles.Bottom) | AnchorStyles.Left) | AnchorStyles.Right)));
lblPrompt.BackColor = SystemColors.Control;
lblPrompt.Font = new Font("Microsoft Sans Serif", 8.25F, FontStyle.Regular, GraphicsUnit.Point, ((Byte)(0)));
lblPrompt.Location = new Point(12, 9);
lblPrompt.Name = "lblPrompt";
lblPrompt.Size = new Size(302, 82);
lblPrompt.TabIndex = 3;
//
// btnOK
//
btnOK.DialogResult = DialogResult.OK;
btnOK.FlatStyle = FlatStyle.Popup;
btnOK.Location = new Point(326, 8);
btnOK.Name = "btnOK";
btnOK.Size = new Size(64, 24);
btnOK.TabIndex = 1;
btnOK.Text = "&OK";
btnOK.Click += new EventHandler(btnOK_Click);
//
// btnCancel
//
btnCancel.DialogResult = DialogResult.Cancel;
btnCancel.FlatStyle = FlatStyle.Popup;
btnCancel.Location = new Point(326, 40);
btnCancel.Name = "btnCancel";
btnCancel.Size = new Size(64, 24);
btnCancel.TabIndex = 2;
btnCancel.Text = "&Cancel";
btnCancel.Click += new EventHandler(btnCancel_Click);
//
// txtInput
//
txtInput.Location = new Point(8, 100);
txtInput.Name = "txtInput";
txtInput.Size = new Size(379, 20);
txtInput.TabIndex = 0;
txtInput.Text = "";
//
// InputBoxDialog
//
frmInputDialog.AutoScaleBaseSize = new Size(5, 13);
frmInputDialog.ClientSize = new Size(398, 128);
frmInputDialog.Controls.Add(txtInput);
frmInputDialog.Controls.Add(btnCancel);
frmInputDialog.Controls.Add(btnOK);
frmInputDialog.Controls.Add(lblPrompt);
frmInputDialog.FormBorderStyle = FormBorderStyle.FixedDialog;
frmInputDialog.MaximizeBox = false;
frmInputDialog.MinimizeBox = false;
frmInputDialog.Name = "InputBoxDialog";
frmInputDialog.ResumeLayout(false);
}
#endregion
#region Private function, InputBox Form move and change size
static private void LoadForm()
{
OutputResponse.ReturnCode = DialogResult.Ignore;
OutputResponse.Text = string.Empty;
txtInput.Text = _defaultValue;
lblPrompt.Text = _formPrompt;
frmInputDialog.Text = _formCaption;
// Retrieve the working rectangle from the Screen class
// using the PrimaryScreen and the WorkingArea properties.
System.Drawing.Rectangle workingRectangle = Screen.PrimaryScreen.WorkingArea;
if((_xPos >= 0 && _xPos < workingRectangle.Width-100) && (_yPos >= 0 && _yPos < workingRectangle.Height-100))
{
frmInputDialog.StartPosition = FormStartPosition.Manual;
frmInputDialog.Location = new System.Drawing.Point(_xPos, _yPos);
}
else
frmInputDialog.StartPosition = FormStartPosition.CenterScreen;
string PrompText = lblPrompt.Text;
int n = 0;
int Index = 0;
while(PrompText.IndexOf("\n",Index) > -1)
{
Index = PrompText.IndexOf("\n",Index)+1;
n++;
}
if( n == 0 )
n = 1;
System.Drawing.Point Txt = txtInput.Location;
Txt.Y = Txt.Y + (n*4);
txtInput.Location = Txt;
System.Drawing.Size form = frmInputDialog.Size;
form.Height = form.Height + (n*4);
frmInputDialog.Size = form;
txtInput.SelectionStart = 0;
txtInput.SelectionLength = txtInput.Text.Length;
txtInput.Focus();
}
#endregion
#region Button control click event
static private void btnOK_Click(object sender, System.EventArgs e)
{
OutputResponse.ReturnCode = DialogResult.OK;
OutputResponse.Text = txtInput.Text;
frmInputDialog.Dispose();
}
static private void btnCancel_Click(object sender, System.EventArgs e)
{
OutputResponse.ReturnCode = DialogResult.Cancel;
OutputResponse.Text = string.Empty; //Clean output response
frmInputDialog.Dispose();
}
#endregion
#region Public Static Show functions
static public InputBoxResult Show(string Prompt)
{
InitializeComponent();
FormPrompt = Prompt;
// Display the form as a modal dialog box.
LoadForm();
frmInputDialog.ShowDialog();
return OutputResponse;
}
static public InputBoxResult Show(string Prompt,string Title)
{
InitializeComponent();
FormCaption = Title;
FormPrompt = Prompt;
// Display the form as a modal dialog box.
LoadForm();
frmInputDialog.ShowDialog();
return OutputResponse;
}
static public InputBoxResult Show(string Prompt,string Title,string Default)
{
InitializeComponent();
FormCaption = Title;
FormPrompt = Prompt;
DefaultValue = Default;
// Display the form as a modal dialog box.
LoadForm();
frmInputDialog.ShowDialog();
return OutputResponse;
}
static public InputBoxResult Show(string Prompt,string Title,string Default,int XPos,int YPos)
{
InitializeComponent();
FormCaption = Title;
FormPrompt = Prompt;
DefaultValue = Default;
XPosition = XPos;
YPosition = YPos;
// Display the form as a modal dialog box.
LoadForm();
frmInputDialog.ShowDialog();
return OutputResponse;
}
#endregion
#region Private Properties
static private string FormCaption
{
set
{
_formCaption = value;
}
} // property FormCaption
static private string FormPrompt
{
set
{
_formPrompt = value;
}
} // property FormPrompt
static private InputBoxResult OutputResponse
{
get
{
return _outputResponse;
}
set
{
_outputResponse = value;
}
} // property InputResponse
static private string DefaultValue
{
set
{
_defaultValue = value;
}
} // property DefaultValue
static private int XPosition
{
set
{
if( value >= 0 )
_xPos = value;
}
} // property XPos
static private int YPosition
{
set
{
if( value >= 0 )
_yPos = value;
}
} // property YPos
#endregion
}
}

Alwyn Miranda：
If you are using asp.net application, you should use Prompt instead of this, for "InputBox" is only for WinForm. And you can accept the value via javascript by saving into a hiddenfield and fetch the value in the Form_Load by using HiddenField's Id.Value

You obviously can't use neither a VB (or Windows.Forms) kind of inputbox on a web application. The only reason you are seeing the inputbox is because the server is probably on your own machine (is the server creating the inputbox, not the web client). If you ever run a different client from a different machine, you won't see the inputbox at all (it'll open in the server, and probably will stall waiting for the input).
You'll have to use a web browser method of inputting data, but since you are indeed trying to open a Windows form in a web application, I guess your understanding of how web client/server applications work is just wrong, and you should begin by getting to understand this, which is way beyond the scope of this question (and Stack Overflow in general).

Show control inside user control outside the boundaries of its parent

I have a usercontrol that has a textbox and a listbox, and it uses them to provides autocomplete functionality to the users.
However, I want the listbox to be drawn outside of the boundaries of the user control so that it doesn't get cutoff when the listbox has to be drawn near the edge of the user control. Any tips on how to do that? Essentially I want a listbox floating outside the boundaries of its container control.
The only way I can think off is to pass a reference to an outside listbox to the user control on instantiation and then manipulate that listbox instead of having it inside the user control, but I dont like this approach. Thanks in advance.

Problem is, you can't escape your container form bounds, but you can host your control somewhere else.
Here's what I got working by abusing the ToolstripDropDown class (I use it to display datepickers in a large enterprise application):
/// <summary>
/// PopupHelper
/// </summary>
public sealed class PopupHelper : IDisposable
{
private readonly Control m_control;
private readonly ToolStripDropDown m_tsdd;
private readonly Panel m_hostPanel; // workarround - some controls don't display correctly if they are hosted directly in ToolStripControlHost
public PopupHelper(Control pControl)
{
m_hostPanel = new Panel();
m_hostPanel.Padding = Padding.Empty;
m_hostPanel.Margin = Padding.Empty;
m_hostPanel.TabStop = false;
m_hostPanel.BorderStyle = BorderStyle.None;
m_hostPanel.BackColor = Color.Transparent;
m_tsdd = new ToolStripDropDown();
m_tsdd.CausesValidation = false;
m_tsdd.Padding = Padding.Empty;
m_tsdd.Margin = Padding.Empty;
m_tsdd.Opacity = 0.9;
m_control = pControl;
m_control.CausesValidation = false;
m_control.Resize += MControlResize;
m_hostPanel.Controls.Add(m_control);
m_tsdd.Padding = Padding.Empty;
m_tsdd.Margin = Padding.Empty;
m_tsdd.MinimumSize = m_tsdd.MaximumSize = m_tsdd.Size = pControl.Size;
m_tsdd.Items.Add(new ToolStripControlHost(m_hostPanel));
}
private void ResizeWindow()
{
m_tsdd.MinimumSize = m_tsdd.MaximumSize = m_tsdd.Size = m_control.Size;
m_hostPanel.MinimumSize = m_hostPanel.MaximumSize = m_hostPanel.Size = m_control.Size;
}
private void MControlResize(object sender, EventArgs e)
{
ResizeWindow();
}
/// <summary>
/// Display the popup and keep the focus
/// </summary>
/// <param name="pParentControl"></param>
public void Show(Control pParentControl)
{
if (pParentControl == null) return;
// position the popup window
var loc = pParentControl.PointToScreen(new Point(0, pParentControl.Height));
m_tsdd.Show(loc);
m_control.Focus();
}
public void Close()
{
m_tsdd.Close();
}
public void Dispose()
{
m_control.Resize -= MControlResize;
m_tsdd.Dispose();
m_hostPanel.Dispose();
}
}
Usage:
private PopupHelper m_popup;
private void ShowPopup()
{
if (m_popup == null)
m_popup = new PopupHelper(yourListControl);
m_popup.Show(this);
}

create custom object (combination of two objects)

hello creating a custom object may be a widely published topic, but my lack of coding skills proves problematic in actually implementing what i'm trying to do.
in a nutshell i'm adding controls at runtime in a flowpanelLayout. right now it's just listboxes, that code is all working fine. i would like a way to label the listboxes that are getting added, i can't think of a better way to do this than to use a text label. i was thinking it would be slick to create some sort of custom control (if possible) which is a listbox and a textlabel like one above the other or something. this way i can add the new custom control in my current code and assign the listbox attributes and label text, etc all in one motion.
this is what i was thinking, maybe there's even a better way to do this.
my current listview creation code:
public void addListView()
{
ListView newListView = new ListView();
newListView.AllowDrop = true;
newListView.DragDrop += listView_DragDrop;
newListView.DragEnter += listView_DragEnter;
newListView.MouseDoubleClick += listView_MouseDoubleClick;
newListView.MouseDown += listView_MouseDown;
newListView.DragOver += listView_DragOver;
newListView.Width = 200;
newListView.Height = 200;
newListView.View = View.Tile;
newListView.MultiSelect = false;
flowPanel.Controls.Add(newListView);
numWO++;
numberofWOLabel.Text = numWO.ToString();
}
maybe the actual best answer is simply to also add a textlabel here and define some set coordinates to put it. let me know what you think.
if a custom control is the way to go, please provide some resource or example for me - i'd appreciate it.

Here is a custom user control that can do that:
You just need to set TitleLabelText to set the title.
[Category("Custom User Controls")]
public class ListBoxWithTitle : ListBox
{
private Label titleLabel;
public ListBoxWithTitle()
{
this.SizeChanged +=new EventHandler(SizeSet);
this.LocationChanged +=new EventHandler(LocationSet);
this.ParentChanged += new EventHandler(ParentSet);
}
public string TitleLabelText
{
get;
set;
}
//Ensures the Size, Location and Parent have been set before adding text
bool isSizeSet = false;
bool isLocationSet = false;
bool isParentSet = false;
private void SizeSet(object sender, EventArgs e)
{
isSizeSet = true;
if (isSizeSet && isLocationSet && isParentSet)
{
PositionLabel();
}
}
private void LocationSet(object sender, EventArgs e)
{
isLocationSet = true;
if (isSizeSet && isLocationSet && isParentSet)
{
PositionLabel();
}
}
private void ParentSet(object sender, EventArgs e)
{
isParentSet = true;
if (isSizeSet && isLocationSet && isParentSet)
{
PositionLabel();
}
}
private void PositionLabel()
{
//Initializes text label
titleLabel = new Label();
//Positions the text 10 pixels below the Listbox.
titleLabel.Location = new Point(this.Location.X, this.Location.Y + this.Size.Height + 10);
titleLabel.AutoSize = true;
titleLabel.Text = TitleLabelText;
this.Parent.Controls.Add(titleLabel);
}
}
Example use:
public Form1()
{
InitializeComponent();
ListBoxWithTitle newitem = new ListBoxWithTitle();
newitem.Size = new Size(200, 200);
newitem.Location = new Point(20, 20);
newitem.TitleLabelText = "Test";
this.Controls.Add(newitem);
}