By using this site, you agree to our updated Privacy Policy and our Terms of Use. Manage your Cookies Settings.
428,659 Members | 910 Online
Bytes IT Community
+ Ask a Question
Need help? Post your question and get tips & solutions from a community of 428,659 IT Pros & Developers. It's quick & easy.

How can i copy and paste the data

P: n/a
Hi

I have one VB.NET application,in that application i have
one datagrid control.The datagrid control contains
somedata.I want to copy the data in a particular cell and
paste it into my C#.NET application or notepad where i
want to paste it to be.How can i do it?If anyone knows
source code or any website URL's please let me know.

Umasakshi
Nov 20 '05 #1
Share this Question
Share on Google+
3 Replies


P: n/a
Hi Uma,

There are so many possibilities with drag and drop and the clipboard, here 2
links.

Hi x

http://msdn.microsoft.com/library/de...ardSupport.asp

http://msdn.microsoft.com/library/de...mpdragdrop.asp

I hope this helps a little bit?

Cor
Nov 20 '05 #2

P: n/a
HI
Hi
You can use the dragDrop functionality of your controls , check this free
source example
using System;
using System.Drawing;
using System.Windows.Forms;

namespace Snip_DragNDrop
{
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.ListBox ListDragSource;
private System.Windows.Forms.ListBox ListDragTarget;
private System.Windows.Forms.CheckBox UseCustomCursorsCheck;
private System.Windows.Forms.Label DropLocationLabel;

private int indexOfItemUnderMouseToDrag;
private int indexOfItemUnderMouseToDrop;

private Rectangle dragBoxFromMouseDown;
private Point screenOffset;

private Cursor MyNoDropCursor;
private Cursor MyNormalCursor;

/// The main entry point for the application.
[STAThread]
static void Main()
{
Application.Run(new Form1());
}

public Form1()
{
this.ListDragSource = new System.Windows.Forms.ListBox();
this.ListDragTarget = new System.Windows.Forms.ListBox();
this.UseCustomCursorsCheck = new System.Windows.Forms.CheckBox();
this.DropLocationLabel = new System.Windows.Forms.Label();

this.SuspendLayout();

// ListDragSource
this.ListDragSource.AllowDrop = true;
this.ListDragSource.Items.AddRange(new object[] {"one", "two", "three",
"four",
"five", "six", "seven", "eight",
"nine", "ten"});
this.ListDragSource.Location = new System.Drawing.Point(10, 17);
this.ListDragSource.Size = new System.Drawing.Size(120, 225);
this.ListDragSource.MouseDown += new
System.Windows.Forms.MouseEventHandler(this.ListDr agSource_MouseDown);
this.ListDragSource.QueryContinueDrag += new
System.Windows.Forms.QueryContinueDragEventHandler (this.ListDragSource_Query
ContinueDrag);
this.ListDragSource.MouseUp += new
System.Windows.Forms.MouseEventHandler(this.ListDr agSource_MouseUp);
this.ListDragSource.MouseMove += new
System.Windows.Forms.MouseEventHandler(this.ListDr agSource_MouseMove);
this.ListDragSource.GiveFeedback += new
System.Windows.Forms.GiveFeedbackEventHandler(this .ListDragSource_GiveFeedba
ck);
this.ListDragSource.DragDrop += new
System.Windows.Forms.DragEventHandler(this.ListDra gTarget_DragDrop);
// ListDragTarget
this.ListDragTarget.AllowDrop = true;
this.ListDragTarget.Location = new System.Drawing.Point(154, 17);
this.ListDragTarget.Size = new System.Drawing.Size(120, 225);
//this.ListDragTarget.DragOver += new
System.Windows.Forms.DragEventHandler(this.ListDra gTarget_DragOver);
this.ListDragTarget.DragDrop += new
System.Windows.Forms.DragEventHandler(this.ListDra gTarget_DragDrop);
this.ListDragTarget.DragEnter += new
System.Windows.Forms.DragEventHandler(this.ListDra gTarget_DragEnter);
//this.ListDragTarget.DragLeave += new
System.EventHandler(this.ListDragTarget_DragLeave) ;

// UseCustomCursorsCheck
this.UseCustomCursorsCheck.Location = new System.Drawing.Point(10, 243);
this.UseCustomCursorsCheck.Size = new System.Drawing.Size(137, 24);
this.UseCustomCursorsCheck.Text = "Use Custom Cursors";

// DropLocationLabel
this.DropLocationLabel.Location = new System.Drawing.Point(154, 245);
this.DropLocationLabel.Size = new System.Drawing.Size(137, 24);
this.DropLocationLabel.Text = "None";

// Form1
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 270);
this.Controls.AddRange(new System.Windows.Forms.Control[]
{this.ListDragSource,
this.ListDragTarget, this.UseCustomCursorsCheck,
this.DropLocationLabel});
this.Text = "Drag and Drop Example";

this.ResumeLayout(false);

}

private void ListDragSource_MouseDown(object sender,
System.Windows.Forms.MouseEventArgs e)
{
// Get the index of the item the mouse is below.
indexOfItemUnderMouseToDrag = ListDragSource.IndexFromPoint(e.X, e.Y);

if (indexOfItemUnderMouseToDrag != ListBox.NoMatches)
{

// Remember the point where the mouse down occurred. The DragSize
indicates
// the size that the mouse can move before a drag event should be
started.
Size dragSize = SystemInformation.DragSize;

// Create a rectangle using the DragSize, with the mouse position being
// at the center of the rectangle.
dragBoxFromMouseDown = new Rectangle(new Point(e.X - (dragSize.Width
/2),
e.Y - (dragSize.Height /2)), dragSize);
}
else
// Reset the rectangle if the mouse is not over an item in the ListBox.
dragBoxFromMouseDown = Rectangle.Empty;

}

private void ListDragSource_MouseUp(object sender,
System.Windows.Forms.MouseEventArgs e)
{
// Reset the drag rectangle when the mouse button is raised.
dragBoxFromMouseDown = Rectangle.Empty;
}

private void ListDragSource_MouseMove(object sender,
System.Windows.Forms.MouseEventArgs e)
{

if ((e.Button & MouseButtons.Left) == MouseButtons.Left)
{

// If the mouse moves outside the rectangle, start the drag.
if (dragBoxFromMouseDown != Rectangle.Empty &&
!dragBoxFromMouseDown.Contains(e.X, e.Y))
{

// Create custom cursors for the drag-and-drop operation.
try
{
MyNormalCursor = new Cursor("3dwarro.cur");
MyNoDropCursor = new Cursor("3dwno.cur");

}
catch
{
// An error occurred while attempting to load the cursors, so use
// standard cursors.
UseCustomCursorsCheck.Checked = false;
}
finally
{

// The screenOffset is used to account for any desktop bands
// that may be at the top or left side of the screen when
// determining when to cancel the drag drop operation.
screenOffset = SystemInformation.WorkingArea.Location;

// Proceed with the drag and drop, passing in the list item.

DragDropEffects dropEffect =
ListDragSource.DoDragDrop(ListDragSource.Items[indexOfItemUnderMouseToDrag],
DragDropEffects.All | DragDropEffects.Link);

// If the drag operation was a move then remove the item.
if (dropEffect == DragDropEffects.Move)
{
ListDragSource.Items.RemoveAt(indexOfItemUnderMous eToDrag);

// Selects the previous item in the list as long as the list has an
item.
if (indexOfItemUnderMouseToDrag > 0)
ListDragSource.SelectedIndex = indexOfItemUnderMouseToDrag -1;

else if (ListDragSource.Items.Count > 0)
// Selects the first item.
ListDragSource.SelectedIndex =0;
}

// Dispose of the cursors since they are no longer needed.
if (MyNormalCursor != null)
MyNormalCursor.Dispose();

if (MyNoDropCursor != null)
MyNoDropCursor.Dispose();
}
}
}
}
private void ListDragSource_GiveFeedback(object sender,
System.Windows.Forms.GiveFeedbackEventArgs e)
{
// Use custom cursors if the check box is checked.
if (UseCustomCursorsCheck.Checked)
{

// Sets the custom cursor based upon the effect.
e.UseDefaultCursors = false;
if ((e.Effect & DragDropEffects.Move) == DragDropEffects.Move)
Cursor.Current = MyNormalCursor;
else
Cursor.Current = MyNoDropCursor;
}

}
private void ListDragTarget_DragOver(object sender,
System.Windows.Forms.DragEventArgs e)
{

// Determine whether string data exists in the drop data. If not, then
// the drop effect reflects that the drop cannot occur.
if (!e.Data.GetDataPresent(typeof(System.String)))
{

e.Effect = DragDropEffects.None;
DropLocationLabel.Text = "None - no string data.";
return;
}

// Set the effect based upon the KeyState.
if ((e.KeyState & (8+32)) == (8+32) &&
(e.AllowedEffect & DragDropEffects.Link) == DragDropEffects.Link)
{
// KeyState 8 + 32 = CTL + ALT

// Link drag and drop effect.
e.Effect = DragDropEffects.Link;

}
else if ((e.KeyState & 32) == 32 &&
(e.AllowedEffect & DragDropEffects.Link) == DragDropEffects.Link)
{

// ALT KeyState for link.
e.Effect = DragDropEffects.Link;

}
else if ((e.KeyState & 4) == 4 &&
(e.AllowedEffect & DragDropEffects.Move) == DragDropEffects.Move)
{

// SHIFT KeyState for move.
e.Effect = DragDropEffects.Move;

}
else if ((e.KeyState & 8) == 8 &&
(e.AllowedEffect & DragDropEffects.Copy) == DragDropEffects.Copy)
{

// CTL KeyState for copy.
e.Effect = DragDropEffects.Copy;

}
else if ((e.AllowedEffect & DragDropEffects.Move) ==
DragDropEffects.Move)
{

// By default, the drop action should be move, if allowed.
e.Effect = DragDropEffects.Move;

}
else
e.Effect = DragDropEffects.None;

// Get the index of the item the mouse is below.

// The mouse locations are relative to the screen, so they must be
// converted to client coordinates.

indexOfItemUnderMouseToDrop =
ListDragTarget.IndexFromPoint(ListDragTarget.Point ToClient(new
Point(e.X, e.Y)));

// Updates the label text.
if (indexOfItemUnderMouseToDrop != ListBox.NoMatches)
{

DropLocationLabel.Text = "Drops before item #" +
(indexOfItemUnderMouseToDrop + 1);
}
else
DropLocationLabel.Text = "Drops at the end.";

}
private void ListDragTarget_DragDrop(object sender,
System.Windows.Forms.DragEventArgs e)
{
// Ensure that the list item index is contained in the data.
if (e.Data.GetDataPresent(typeof(System.String)))
{

Object item = (object)e.Data.GetData(typeof(System.String));

// Perform drag and drop, depending upon the effect.
if (e.Effect == DragDropEffects.Copy ||
e.Effect == DragDropEffects.Move)
{

// Insert the item.
if (indexOfItemUnderMouseToDrop != ListBox.NoMatches)
ListDragTarget.Items.Insert(indexOfItemUnderMouseT oDrop, item);
else
ListDragTarget.Items.Add(item);

}
}
// Reset the label text.
DropLocationLabel.Text = "None";
}
private void ListDragSource_QueryContinueDrag(object sender,
System.Windows.Forms.QueryContinueDragEventArgs e)
{
// Cancel the drag if the mouse moves off the form.
ListBox lb = sender as ListBox;

if (lb != null)
{

Form f = lb.FindForm();

// Cancel the drag if the mouse moves off the form. The screenOffset
// takes into account any desktop bands that may be at the top or left
// side of the screen.
if (((Control.MousePosition.X - screenOffset.X) < f.DesktopBounds.Left)
||
((Control.MousePosition.X - screenOffset.X) > f.DesktopBounds.Right) ||
((Control.MousePosition.Y - screenOffset.Y) < f.DesktopBounds.Top) ||
((Control.MousePosition.Y - screenOffset.Y) > f.DesktopBounds.Bottom))
{

e.Action = DragAction.Cancel;
}
}
}
private void ListDragTarget_DragEnter(object sender,
System.Windows.Forms.DragEventArgs e)
{
// Reset the label text.
DropLocationLabel.Text = "None";
}
private void ListDragTarget_DragLeave(object sender, System.EventArgs e)
{
// Reset the label text.
DropLocationLabel.Text = "None";
}
}
}

Mohamed Mahfouz
MEA Developer Support Center
ITworx on behalf of Microsoft EMEA GTSC

Nov 20 '05 #3

P: n/a
Hi Mohamoss,

That code will not compile in VB.Net

:-)

Cor
Nov 20 '05 #4

This discussion thread is closed

Replies have been disabled for this discussion.