Code:
private void frmDragDrop_Load(object sender, EventArgs e)
{
//enable the dragged item to be dropped on to the target
this.txtDropTarget.AllowDrop = true;
//to make the custom drag icon visible over the form
//we must allow drop on the form but take no action upon it
this.AllowDrop = true;
}
private void lblDragSource_MouseDown(object sender, MouseEventArgs e)
{
//initiate the drag operation
//the given DragDropEffect iindicates cursor to use when dropping is allowed
lblDragSource.DoDragDrop(lblDragSource.Text, DragDropEffects.Copy);
}
private void txtDropTarget_DragEnter(object sender, DragEventArgs e)
{
//if dragging has data, show the droppable cursor
//otherwise show the no-drop cursor
if (e.Data.GetDataPresent(DataFormats.Text))
e.Effect = DragDropEffects.Copy;
else
e.Effect = DragDropEffects.None;
}
private void frmDragDrop_DragEnter(object sender, DragEventArgs e)
{
//this is where the actual "show drag icon over the form" occurs
if (e.Data.GetDataPresent(DataFormats.Text))
e.Effect = DragDropEffects.Copy;
else
e.Effect = DragDropEffects.None;
}
private void txtDropTarget_DragDrop(object sender, DragEventArgs e)
{
//process the drop action
txtDropTarget.Text = (string)e.Data.GetData(DataFormats.Text);
}
private void lblDragSource_GiveFeedback(object sender, GiveFeedbackEventArgs e)
{
//customize the drag cursor for the given DragDropEffect for this control
e.UseDefaultCursors = e.Effect != DragDropEffects.Copy;
Cursor.Current = new Cursor("1.ico");
}
http://www.switchonthecode.com/tutorials/winforms-using-custom-cursors-with-drag-drop
http://www.switchonthecode.com/tutorials/csharp-tutorial-how-to-use-custom-cursors
http://stackoverflow.com/questions/1733912/how-do-i-handle-dragging-of-a-label-in-c
