Windows Forms FAQ : Windows Forms PictureBox : Syncfusion

31.4 How can I drag and drop an image from one PictureBox to another?

The following code snippet demonstrates how you can drag and copy an image from one picturebox (Source) another (Target:

[C#]

//In the Form Load

//Set AllowDrop of the Target PictureBox to true as this property cannot be set in the Designer

this.pictureBox2.AllowDrop = true;

//Source PictureBox

private void pictureBox1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

pictureBox1.DoDragDrop( pictureBox1.Image, DragDropEffects.All );

}

//Target PictureBox

//Drag Drop Effects

private void pictureBox2_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)

{

if ( e.Data.GetDataPresent( DataFormats.Bitmap ) )

{

e.Effect = DragDropEffects.Copy;

}

else

e.Effect = DragDropEffects.None;

}

//Set the image to be the dragged image.

private void pictureBox2_DragDrop(object sender, System.Windows.Forms.DragEventArgs e)

{

if ( (e.Data.GetDataPresent(DataFormats.Bitmap)))

{

this.pictureBox1.Image = (Bitmap)(e.Data.GetData(DataFormats.Bitmap));

}

[VB.NET]

'In the Form Load

'Set AllowDrop of the Target PictureBox to true as this property cannot be set in the Designer

Me.pictureBox2.AllowDrop = True

'Source PictureBox

Private Sub pictureBox1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs)

If e.Button = MouseButtons.Left Then

pictureBox1.DoDragDrop(pictureBox1.Image, DragDropEffects.All)

End If

End Sub

'Target PictureBox

'Drag Drop Effects

Private Sub pictureBox2_DragEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs)

If e.Data.GetDataPresent(DataFormats.Bitmap) Then

e.Effect = DragDropEffects.Copy

Else

e.Effect = DragDropEffects.None

End If

End Sub

'Set the image to be the dragged image.

Private Sub pictureBox2_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs)

If (e.Data.GetDataPresent(DataFormats.Bitmap)) Then

Me.pictureBox1.Image = CType((e.Data.GetData(DataFormats.Bitmap)), Bitmap)

End If

End Sub