how to drag and drop an array of picturebox

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From: Shawn on 23 Feb 2010 09:46

---

Here's a solution to your problem. I assumed 'NodesLimit' was supposed to be some constant that decides how many picture boxes there were. Most importantly, I noticed you merged the MouseUp, MouseDown, and MouseMove event handlers. They're separate for a reason.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;


namespace PicBoxApp
{
public partial class Form1 : Form
{
bool isDragging = false;
int currentX;
int currentY;
Control dragThing;

public const int NODES_LIMIT = 8;
private System.Windows.Forms.PictureBox[] PicBoxes;


Rectangle dropRect = new Rectangle(180, 180, 60, 60);


private PictureBox myPictureBox;


public Form1()
{
InitializeComponent();
CenterToScreen();


PicBoxes = new System.Windows.Forms.PictureBox[8];


myPictureBox = new PictureBox();
myPictureBox.SizeMode = PictureBoxSizeMode.StretchImage;
myPictureBox.Location = new System.Drawing.Point(64, 32);
myPictureBox.Size = new System.Drawing.Size(60, 80);
myPictureBox.Image = new Bitmap(@"D:\Documents and
Settings
\All Users\Documents\My Pictures\Sample Pictures\winter.jpg");

//initialise each picture box
for (int i = 0; i < NODES_LIMIT; i++)
{
//allocate the picture box
PicBoxes[i] = new PictureBox();
PicBoxes[i].Name = i.ToString();
//set up the initial properties
PicBoxes[i].Top = (i + 1) * 30;
PicBoxes[i].Left = (i + 1) * 20;
PicBoxes[i].Width = 60;
PicBoxes[i].Height = 80;
PicBoxes[i].SizeMode =
PictureBoxSizeMode.StretchImage;
PicBoxes[i].Image = Image.FromFile(@"D:\Documents and
Settings
\All Users\Documents\My Pictures\Sample Pictures\winter.jpg");
//we are putting the index into the Tag property so we can access this like any other array
PicBoxes[i].Tag = i;
//Here we are wiring this picture boxes click to our new common click handler.
PicBoxes[i].Click += new
System.EventHandler(ClickHandler);
PicBoxes[i].MouseDown += new
System.Windows.Forms.MouseEventHandler(MouseDown);
PicBoxes[i].MouseUp += new
System.Windows.Forms.MouseEventHandler(MouseUp);
PicBoxes[i].MouseMove += new
System.Windows.Forms.MouseEventHandler(MouseMove);
}
this.Controls.AddRange(PicBoxes);


Controls.Add(myPictureBox);
}


//This is the new click handling function for our array of boxes
public void ClickHandler(Object sender, System.EventArgs e)
{

}


private void MouseDown(object sender, MouseEventArgs e)
{
dragThing = ((Control)sender);
currentX = e.X;
currentY = e.Y;
isDragging = true;
dragThing.BringToFront();
}


private void MouseMove(object sender, MouseEventArgs e)
{
if (isDragging)
{
dragThing.Top = dragThing.Top + (e.Y - currentY);
dragThing.Left = dragThing.Left + (e.X - currentX);
}

}


private void MouseUp(object sender, MouseEventArgs e)
{
isDragging = false;

}


private void Form1_Paint(object sender,
System.Windows.Forms.PaintEventArgs e)
{

}


}


}




weird0 wrote:

how to drag and drop an array of picturebox
19-Oct-07

I have been successful in making an array of picturebox and writing
event handlers for them, after hours of hard work. I want to drag and
drop all of the pictureboxes. And they dont.!!!! :-( Can somebody
help me this? What code should i write in the event handlers so that i
make all the picture boxes to drag and drop ?

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;


namespace PicBoxApp
{
public partial class Form1 : Form
{


private System.Windows.Forms.PictureBox[] PicBoxes;


Rectangle dropRect = new Rectangle(180, 180, 60, 60);


private PictureBox myPictureBox;


public Form1()
{
InitializeComponent();
CenterToScreen();


PicBoxes = new System.Windows.Forms.PictureBox[8];


myPictureBox = new PictureBox();
myPictureBox.SizeMode = PictureBoxSizeMode.StretchImage;
myPictureBox.Location = new System.Drawing.Point(64, 32);
myPictureBox.Size = new System.Drawing.Size(50, 50);
myPictureBox.Image = new Bitmap(@"D:\Documents and
Settings
\All Users\Documents\My Pictures\Sample Pictures\winter.jpg");
//myPictureBox.MouseDown += new
MouseEventHandler(myPictureBox_MouseDown);
//myPictureBox.MouseUp += new
MouseEventHandler(myPictureBox_MouseUp);
//myPictureBox.MouseMove += new
MouseEventHandler(myPictureBox_MouseMove);
//myPictureBox.Cursor = Cursors.Hand;


//initialise each picture box
for (i = 0; i < NodesLimit; i++)
{
//allocate the picture box
PicBoxes[i] = new PictureBox();
PicBoxes[i].Name = i.ToString();
//set up the initial properties
PicBoxes[i].Top = (i + 1) * 30;
PicBoxes[i].Left = (i + 1) * 20;
PicBoxes[i].Width = 150;
PicBoxes[i].Height = 100;
PicBoxes[i].SizeMode =
PictureBoxSizeMode.StretchImage;
PicBoxes[i].Image = Image.FromFile(@"D:\Documents and
Settings\All Users\Documents\My Pictures\Sample Pictures
\Winter.jpg");
//we are putting the index into the Tag property so
we
can access this like any other array
PicBoxes[i].Tag = i;
//Here we are wiring this picture boxes click to our
new common click handler.
PicBoxes[i].Click += new
System.EventHandler(ClickHandler);
PicBoxes[i].MouseDown += new
System.Windows.Forms.MouseEventHandler(MouseDown);
PicBoxes[i].MouseDown += new
System.Windows.Forms.MouseEventHandler(MouseUp);
PicBoxes[i].MouseDown += new
System.Windows.Forms.MouseEventHandler(MouseMove);
}
this.Controls.AddRange(PicBoxes);


Controls.Add(myPictureBox);
}


//This is the new click handling function for our array of
boxes
public void ClickHandler(Object sender, System.EventArgs e)
{

}


private void MouseDown(object sender, MouseEventArgs e)
{

}


private void MouseMove(object sender, MouseEventArgs e)
{


}


private void MouseUp(object sender, MouseEventArgs e)
{


}


private void Form1_Paint(object sender,
System.Windows.Forms.PaintEventArgs e)
{

}


}


}


Here are the links, where i took help:


http://pages.cpsc.ucalgary.ca/~carman/481/examples/csharp/controlarra...
http://www.java2s.com/Code/CSharp/GUI-Windows-Form/DraganddropthePict...


Need help
Regards

Previous Posts In This Thread:

On Friday, October 19, 2007 3:13 PM
weird0 wrote:

how to drag and drop an array of picturebox
I have been successful in making an array of picturebox and writing
event handlers for them, after hours of hard work. I want to drag and
drop all of the pictureboxes. And they dont.!!!! :-( Can somebody
help me this? What code should i write in the event handlers so that i
make all the picture boxes to drag and drop ?

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;


namespace PicBoxApp
{
public partial class Form1 : Form
{


private System.Windows.Forms.PictureBox[] PicBoxes;


Rectangle dropRect = new Rectangle(180, 180, 60, 60);


private PictureBox myPictureBox;


public Form1()
{
InitializeComponent();
CenterToScreen();


PicBoxes = new System.Windows.Forms.PictureBox[8];


myPictureBox = new PictureBox();
myPictureBox.SizeMode = PictureBoxSizeMode.StretchImage;
myPictureBox.Location = new System.Drawing.Point(64, 32);
myPictureBox.Size = new System.Drawing.Size(50, 50);
myPictureBox.Image = new Bitmap(@"D:\Documents and
Settings
\All Users\Documents\My Pictures\Sample Pictures\winter.jpg");
//myPictureBox.MouseDown += new
MouseEventHandler(myPictureBox_MouseDown);
//myPictureBox.MouseUp += new
MouseEventHandler(myPictureBox_MouseUp);
//myPictureBox.MouseMove += new
MouseEventHandler(myPictureBox_MouseMove);
//myPictureBox.Cursor = Cursors.Hand;


//initialise each picture box
for (i = 0; i < NodesLimit; i++)
{
//allocate the picture box
PicBoxes[i] = new PictureBox();
PicBoxes[i].Name = i.ToString();
//set up the initial properties
PicBoxes[i].Top = (i + 1) * 30;
PicBoxes[i].Left = (i + 1) * 20;
PicBoxes[i].Width = 150;
PicBoxes[i].Height = 100;
PicBoxes[i].SizeMode =
PictureBoxSizeMode.StretchImage;
PicBoxes[i].Image = Image.FromFile(@"D:\Documents and
Settings\All Users\Documents\My Pictures\Sample Pictures
\Winter.jpg");
//we are putting the index into the Tag property so
we
can access this like any other array
PicBoxes[i].Tag = i;
//Here we are wiring this picture boxes click to our
new common click handler.
PicBoxes[i].Click += new
System.EventHandler(ClickHandler);
PicBoxes[i].MouseDown += new
System.Windows.Forms.MouseEventHandler(MouseDown);
PicBoxes[i].MouseDown += new
System.Windows.Forms.MouseEventHandler(MouseUp);
PicBoxes[i].MouseDown += new
System.Windows.Forms.MouseEventHandler(MouseMove);
}
this.Controls.AddRange(PicBoxes);


Controls.Add(myPictureBox);
}


//This is the new click handling function for our array of
boxes
public void ClickHandler(Object sender, System.EventArgs e)
{

}


private void MouseDown(object sender, MouseEventArgs e)
{

}


private void MouseMove(object sender, MouseEventArgs e)
{


}


private void MouseUp(object sender, MouseEventArgs e)
{


}


private void Form1_Paint(object sender,
System.Windows.Forms.PaintEventArgs e)
{

}


}


}


Here are the links, where i took help:


http://pages.cpsc.ucalgary.ca/~carman/481/examples/csharp/controlarra...
http://www.java2s.com/Code/CSharp/GUI-Windows-Form/DraganddropthePict...


Need help
Regards


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