I was trying to set up a system to check if the mouse is clicked in a winforms application and have ended up doing this
private void lblChips_MouseDown(object sender, MouseEventArgs e)
{
mouseDown = true;
}
private void lblChips_MouseUp(object sender, MouseEventArgs e)
{
mouseDown = false;
}
eight times over (for each label).
Does anyone know if there's a more efficient way of doing this? I tried using
private void frmGame4_MouseDown(object sender, MouseEventArgs e)
{
mouseDown = true;
}
private void frmGame4_MouseUp(object sender, MouseEventArgs e)
{
mouseDown = false;
}
but that doesnt work. Any help would be greatly appreciated.
this
public Form1()
{
InitializeComponent();
CollectFormControls(this);
ControlList.Add(this);
MergeEvents();
}
List<Control> ControlList = new List<Control>();
private void CollectFormControls(Control c)
{
foreach (Control control in c.Controls)
{
ControlList.Add(control);
CheckSubControls(control);
}
}
private void CheckSubControls(Control control)
{
if (control.Controls.Count > -1)
{
CollectFormControls(control);
}
}
private void MergeEvents()
{
for (int i = 0; i < ControlList.Count; i++)
{
ControlList[i].MouseDown += All_MouseDown;
ControlList[i].MouseUp += All_MouseUp;
}
}
public void All_MouseUp(object sender, MouseEventArgs e)
{
this.Text = "up";
}
public void All_MouseDown(object sender, MouseEventArgs e)
{
this.Text = "down";
}
You could make two methods, one for mouse up and one for mouse down, like this:
private void labels_mouseDown(object sender, MouseEventArgs e)
{
mouseDown = true;
}
private void labels_mouseUp(object sender, MouseEventArgs e)
{
mouseDown = false;
}
Then, link all the labels to these methods. You can also do this from Code:
label.mouseDown += labels_mouseDown;
label.mouseUp += labels_mouseUp;
This has to be done somewhere under the InitializeComponent(); method. You still have to do this for every label but in the end it's less code.
Related
I'm trying to make draggable window form, but when I tried to detect mouse down and up event to form, but event does not fire.
Other things seems working but those 2 events are not.
public form()
{
InitializeComponent();
this.BackColor = Color.Fuchsia;
this.TransparencyKey = this.BackColor;
Debug.Write("initialized");
}
private void form_MouseDown(object sender, MouseEventArgs e)
{
Debug.Write("dragging..");
}
private void form_MouseUp(object sender, MouseEventArgs e)
{
Debug.Write("drag done");
}
it is better to add a panel to your form and set Dock to top in order to cover the title bar area. then use this sample code
private bool isDragging = false;
private Point lastLocation;
private void panel_MouseDown(object sender, MouseEventArgs e)
{
isDragging = true;
lastLocation = e.Location;
}
private void panel_MouseMove(object sender, MouseEventArgs e)
{
if (isDragging)
{
this.Location = new Point(
(this.Location.X - lastLocation.X) + e.X,
(this.Location.Y - lastLocation.Y) + e.Y);
this.Update();
}
}
private void panel_MouseUp(object sender, MouseEventArgs e)
{
isDragging = false;
}
don't forget to add handlers in the form constructor
panel.MouseDown += panel_MouseDown;
panel.MouseMove += panel_MouseMove;
panel.MouseUp += panel_MouseUp;
In your constructor for form, register those methods your using to listen for the mouse down events like this.
public form() {
InitializeComponent();
this.BackColor = Color.Fuchsia;
this.TransparencyKey = this.BackColor;
Debug.Write("initialized");
//register the methods to listen for the events
this.MouseDown += form_MouseDown;
this.MouseUp += form_MouseUp;
}
private void form_MouseDown(object sender,
MouseEventArgs e) {
Debug.Write("dragging..");
}
private void form_MouseUp(object sender,
MouseEventArgs e) {
Debug.Write("drag done");
}
So, i try to learn how to Drag and Drop an Image from one PictureBox to another and that works well. But how can i drag and drop the Image TAG from pictureox1 to picturebox2?
i currently have 3 source images and 3 drop boxes.
the dropbox6 is locked with a countdown after a buttonclick (see button2)
(later i will lock all dropboxes)
after i hit this button a countdown starts and if the countdown is 0 (ZERO) only then i can drag one of the 3 images to this box.
however, i have given each of these 3 images in the souceboxes a TAG name.
how can i drop this tagname also to the dropbox?
here is what i have so far:
(the Label labeled "Counter" is actually Label4 in the code
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Game
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void pictureBox_MouseDown(object sender, MouseEventArgs e)
{
// pictureBox1.DoDragDrop(pictureBox1.Image, DragDropEffects.Copy);
((PictureBox)sender).DoDragDrop(((PictureBox)sender).Image, DragDropEffects.Copy);
}
private void Form1_Load(object sender, EventArgs e)
{
pictureBox4.AllowDrop = true;
pictureBox5.AllowDrop = true;
pictureBox6.AllowDrop = true;
pictureBox6.Enabled = false;
}
private void pictureBox4_DragEnter(object sender, DragEventArgs e)
{
if(e.Data.GetDataPresent(DataFormats.Bitmap))
{
e.Effect = DragDropEffects.Copy;
}
}
private void pictureBox4_DragLeave(object sender, EventArgs e)
{
}
private void pictureBox4_DragDrop(object sender, DragEventArgs e)
{
Image getPicture = (Bitmap) e.Data.GetData(DataFormats.Bitmap);
pictureBox4.Image = getPicture;
}
private void pictureBox5_DragEnter(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.Bitmap))
{
e.Effect = DragDropEffects.Copy;
}
}
private void pictureBox5_DragLeave(object sender, EventArgs e)
{
}
private void pictureBox5_DragDrop(object sender, DragEventArgs e)
{
Image getPicture = (Bitmap)e.Data.GetData(DataFormats.Bitmap);
pictureBox5.Image = getPicture;
}
private void pictureBox6_DragDrop(object sender, DragEventArgs e)
{
Image getPicture = (Bitmap)e.Data.GetData(DataFormats.Bitmap);
pictureBox6.Image = getPicture;
timer1.Enabled = false;
}
private void pictureBox6_DragEnter(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.Bitmap))
{
e.Effect = DragDropEffects.Copy;
timer1.Enabled = false;
}
}
private void pictureBox6_DragLeave(object sender, EventArgs e)
{
timer1.Enabled = false;
}
private void pictureBox4_Click(object sender, EventArgs e)
{
MessageBox.Show("test");
}
private void timer1_Tick(object sender, EventArgs e)
{
counter--;
if (counter == 0)
timer1.Stop();
label4.Text = counter.ToString();
if(counter == 0)
{
pictureBox6.Enabled = true;
label4.Enabled = false;
timer1.Stop();
}
}
private void button1_Click(object sender, EventArgs e)
{
System.Windows.Forms.Application.Exit();
}
private void pictureBox6_Click(object sender, EventArgs e)
{
MessageBox.Show(pictureBox6.Tag.ToString());
}
private int counter = 3;
private void button2_Click(object sender, EventArgs e)
{
int counter = 3;
timer1 = new Timer();
timer1.Tick += new EventHandler(timer1_Tick);
timer1.Interval = 1000; // 1 second
timer1.Start();
label4.Text = counter.ToString();
if(label4.Text == "0")
{
timer1.Stop();
}
pictureBox6.Image = Properties.Resources.shoreSite_d_1_l_x_x;
button2.Visible=false;
}
}
internal class bild1
{
private Bitmap shoreSite_d_1_l_x_x;
public bild1(Bitmap shoreSite_d_1_l_x_x)
{
this.shoreSite_d_1_l_x_x = shoreSite_d_1_l_x_x;
}
}
}
In MouseDown you are saying what you want to transmit in the DoDragDrop call. In your current case you are transmitting the image ((PictureBox)sender).Image but you can chose to transmit the tag as well...
private void pictureBox_MouseDown(object sender, MouseEventArgs e)
{
((PictureBox)sender).DoDragDrop(((PictureBox)sender).Image, DragDropEffects.Copy);
((PictureBox)sender).DoDragDrop(((PictureBox)sender).Tag, DragDropEffects.Copy);
}
...Then make sure to parse for each possible input type in DragDrop
private void pictureBox6_DragDrop(object sender, DragEventArgs e)
{
var image = e.Data.GetData(DataFormats.Bitmap) as Bitmap;
var tag = e.Data.GetData(DataFormats.Text) as string;
if (image != null)
{
pictureBox4.Image = image;
}
if (tag != null)
{
pictureBox4.Tag = tag;
}
timer1.Enabled = false;
}
Beware, that you will need to update all the code that checks that the data is Bitmap before it arrives at DragDrop ie in DragEnter and write code that handles both Bitmap and Text, otherwise the Drag functionality will break.
AWESOME!!
It works now. I will continue this Project.
I have problem, which consists in aesthetic sense, correctly - There is textBox to which i apply true condition of UseSystemPasswordChar.. It's work! But i get bold points. Try to change font size - decreases textbox's field. Below is the code (although why is it here?). Can anyone help, thank you in advance)
public partial class frmRegistr : Form
{
public frmRegistr()
{
InitializeComponent();
}
int counter = 0;
int a = 0;
string b;
private void frmRegistr_Load(object sender, EventArgs e)
{
b = label1.Text;
a = b.Length;
label1.Text = "";
timer1.Start();
}
private void label1_Click(object sender, EventArgs e)
{
}
private void label2_Click(object sender, EventArgs e)
{
}
private void timer1_Tick(object sender, EventArgs e)
{
if (counter < a)
{
counter++;
label1.Text = b.Substring(0, counter);
}
else
{
timer1.Stop();
}
}
private void label4_Click(object sender, EventArgs e)
{
timer3.Start();
}
private void label4_MouseHover(object sender, EventArgs e)
{
//if this.MouseLeave
label4.BackColor = Color.FromArgb(((int)(((byte)(154)))), ((int)(((byte)(181)))), ((int)(((byte)(101)))));
}
private void timer2_Tick(object sender, EventArgs e)
{
if (Opacity == 1)
{
timer2.Stop();
}
Opacity += .2;
}
private void timer3_Tick(object sender, EventArgs e)
{
if (Opacity <= 0)
{
this.Close();
}
Opacity -= .2;
}
private void textBox2_TextChanged(object sender, EventArgs e)
{
textBox2.UseSystemPasswordChar = true;
}
}
}
If you want to define your own password character, use property TextBox.PasswordChar. If you want this in a certain font, use Control.Font
As you only have to do this once, do this in the constructor:
public MyForm : Form
{
InitializeComponents(),
this.textBox1.PasswordChar = '_';
this.textBox11.Font = new Font(...)
};
You can also decide to do this using the visual studio designer.
You can setup this in VisualStudio designer, but this is code:
textBox1.PasswordChar = '*';
//* = password character
i have two ListBoxAdv1 and ListBoxAdv2 and i want sync them scroll
i use this code and just scroll up or down but didn't update showing items in other ListBoxAdv
what should i do?
please help
i try this:
private void listBoxAdv1_Scroll(object sender, ScrollEventArgs e)
{
listBoxAdv2.VScrollBar.Value = listBoxAdv1.VScrollBar.Value;
}
private void listBoxAdv2_Scroll(object sender, ScrollEventArgs e)
{
listBoxAdv1.VScrollBar.Value = listBoxAdv2.VScrollBar.Value;
}
and this:
private void listBoxAdv1_Scroll(object sender, ScrollEventArgs e)
{
listBoxAdv2.Focus();
ScrollEventArgs scrollEventArgs = new ScrollEventArgs(ScrollEventType.SmallIncrement, e.OldValue, e.NewValue, ScrollOrientation.VerticalScroll);
listBoxAdv2_Scroll(listBoxAdv2, scrollEventArgs);
}
private void listBoxAdv2_Scroll(object sender, ScrollEventArgs e)
{
}
thanks for many responses!
i find solution:
bool Scrolling = true;
private void listBoxAdv1_Scroll(object sender, ScrollEventArgs e)
{
if (Scrolling == true)
{
Scrolling = false;
listBoxAdv2.BeginUpdate();
listBoxAdv2.AutoScrollPosition = new Point(listBoxAdv1.AutoScrollPosition.X, listBoxAdv1.AutoScrollPosition.Y);
listBoxAdv2_Scroll(sender, e);
listBoxAdv2.EndUpdate();
Scrolling = true;
}
}
private void listBoxAdv2_Scroll(object sender, ScrollEventArgs e)
{
if (Scrolling == true)
{
Scrolling = false;
listBoxAdv1.BeginUpdate();
listBoxAdv1.AutoScrollPosition = new Point(listBoxAdv2.AutoScrollPosition.X, listBoxAdv2.AutoScrollPosition.Y);
listBoxAdv1_Scroll(sender, e);
listBoxAdv1.EndUpdate();
Scrolling = true;
}
}
Please note I'm trying to do the following, when I hover the mouse on a button I want the panel to be visible, when the mouse leaves the button or panel, the panel should not be visible. Below you can see the code I have, but the panel it's not staying visible.
private void FormMain()
{
buttonMenu.MouseEnter += new EventHandler(buttonMenu_MouseEnter); //open panel
buttonMenu.MouseLeave += new EventHandler(buttonMenu_MouseLeave);
panelMenu.MouseEnter += new EventHandler(panelMenu_MouseEnter);
panelMenu.MouseLeave += new EventHandler(panelMenu_MouseLeave);
mbB1.MouseEnter += new EventHandler(mbB1_MouseEnter);//button in panel
mbB2.MouseEnter += new EventHandler(mbB2_MouseEnter);//button in panel
}
private void buttonMenu_MouseEnter(object sender, EventArgs e)
{
this.panelMenu.Visible = true;
}
private void buttonMenu_MouseLeave(object sender, EventArgs e)
{
this.panelMenu.Visible = false;
}
private void panelMenu_MouseEnter(object sender, EventArgs e)
{
this.panelMenu.Visible = true;
}
private void panelMenu_MouseLeave(object sender, EventArgs e)
{
this.panelMenu.Visible = false;
}
private void mbB1_MouseEnter(object sender, EventArgs e)
{
this.panelMenu.Visible = true;
}
private void mbB2_MouseEnter(object sender, EventArgs e)
{
this.panelMenu.Visible = true;
}
One solution that came to my mind is using a short timer. You may further optimize it to cut down on LoC, but it works. You may also lower the timer's delay, but 100ms is what I think would be a safe one.
On a side note, I don't think this is a good design. If you want this kind of behaviour, you should either use a ContextMenuStrip or a Click event on the button, and a hide event on panelMenu.MouseLeave. Still, if it's what you really need, this is how I solved it:
public partial class Form1 : Form
{
private bool mouseInPanel;
private Timer hideTimer;
public Form1()
{
InitializeComponent();
buttonMenu.MouseEnter += new EventHandler(button_MouseEnter);
buttonMenu.MouseLeave += new EventHandler(button_MouseLeave);
mbB1.MouseEnter += panelButton_MouseEnter;
mbB2.MouseEnter += panelButton_MouseEnter;
panelMenu.MouseEnter += new EventHandler(panelMenu_MouseEnter);
panelMenu.MouseLeave += new EventHandler(panelMenu_MouseLeave);
hideTimer = new Timer {Interval = 100};
hideTimer.Tick += hidePanel;
}
private void button_MouseEnter(object sender, EventArgs e)
{
this.panelMenu.Visible = true;
}
private void button_MouseLeave(object sender, EventArgs e)
{
hideTimer.Start();
}
private void panelMenu_MouseEnter(object sender, EventArgs e)
{
mouseInPanel = true;
this.panelMenu.Visible = true;
}
private void panelMenu_MouseLeave(object sender, EventArgs e)
{
mouseInPanel = false;
hideTimer.Start();
}
private void panelButton_MouseEnter(object sender, EventArgs e)
{
mouseInPanel = true;
this.panelMenu.Visible = true;
}
private void hidePanel(object sender, EventArgs e)
{
hideTimer.Stop();
if (!mouseInPanel) this.panelMenu.Visible = false;
}
}
What I figured is your mouse actions needed a little bit of a delay, else the panel (along with your buttons mbB1 and mbB2) gets hidden before those buttons' actions could be triggered.
This is because by entering the panel buttons you leave the panel, and it disappears (along with it's capability to receive mouse actions) right before mbB1/mbB2's action can trigger.