在windows窗体中进行拖放操作时将光标保持在默认形状c#

Question

I am doing a simple drag and drop operation in windows forms. Whenever I start the operation the cursor changes shape. I know this is directly related to the DragDropEffects and I can't find an option that results in the default cursor. Can anybody help? Here is the code:

a.MouseDown += new MouseEventHandler(ButtonDown);
a.DragEnter += new DragEventHandler(ButtonDragEnter);
a.AllowDrop = true;

and here are the functions:

private void ButtonDown(object sender, EventArgs e)
{
    PictureBox p = (PictureBox)sender;
    ButtonClick(sender, e);
    p.DoDragDrop(p.BackColor, DragDropEffects.All);
}

private void ButtonDragEnter(object sender, DragEventArgs e)
{
    e.Data.GetFormats();
    e.Effect = DragDropEffects.None;

    Color c = new Color();
    c = (Color) e.Data.GetData(c.GetType());
    ButtonClick(sender, e,c);
}

Answer 1

Ok answered my own question here:

You first need to add an event to giveFeedBack:

  a.GiveFeedback += new GiveFeedbackEventHandler(DragSource_GiveFeedback);

and here is the feedback function:

private void DragSource_GiveFeedback(object sender, GiveFeedbackEventArgs e)
    {
        e.UseDefaultCursors = false;
    }