remove background PictureBox in C# without transparent color

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hi
I have pictureBox Control with transparent control . I move it with drag & drop mouse .
but it has flicker.I move with this code

C#

control.MouseMove += delegate(object sender, MouseEventArgs e)
{
   if (Dragging)
   {
       if (direction != Direction.Vertical)
	   container.Left = Math.Max(0, e.X + container.Left - DragStart.X);
       if (direction != Direction.Horizontal)
	    container.Top = Math.Max(0, e.Y + container.Top - DragStart.Y);
   }
}

I try some method for solve it such as

C#

Application.DoEvents()

Or

C#

g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias

But they were not efficient , I want know is there any way such as change region of pictureBox to remove back color without Transparent color for background?
thanks for your replies

Posted 15-Feb-13 2:14am

alimajed

Updated 15-Feb-13 2:19am

v2

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Fred Flams · Answer 1 · 2013-02-15T03:58:00

Hello,

you should try to put a call to SuspendLayout and ResumeLayout in your code:

C#

control.MouseMove += delegate(object sender, MouseEventArgs e)
{
   if (Dragging)
   {
       this.SuspendLayout();
       if (direction != Direction.Vertical)
	   container.Left = Math.Max(0, e.X + container.Left - DragStart.X);
       if (direction != Direction.Horizontal)
	    container.Top = Math.Max(0, e.Y + container.Top - DragStart.Y);
       this.ResumeLayout();
   }
}