How can the user move a panel on a form with the cursor

Rob Cro

I have a form which has a panel on it. This form is a child of an MDI form. The panel is scrollable by the user with scroll bars and working well at this point. I would like to know if there is any way this could be modified so that the user could drag the panel with the cursor as well? If so, can you supply the correct event and code?

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Alexandru Lazar16y ago
Sorry for the C# code; I hadn't noticed what forum this was on, but I'm sure you can translate all that in VB.NET
Rob Cro16y ago
Is this forum for C# or Visual Basic?
Sam Hobbs16y ago
Be sure to also look at the recommended articles listed in the right side of the forum windows.

Alexandru Lazar16y ago

Here is a very ugly implementation (I don't have the time to make it performant), but you can get the idea of how it works.

private bool panelIsGrabbed = false;
private int xDistance, yDistance;


private void panel1_MouseDown(object sender, MouseEventArgs e)
{
   xDistance = panel1.Location.X - e.X;
   yDistance = panel1.Location.Y - e.Y;
   panelIsGrabbed = true;
}

private void panel1_MouseMove(object sender, MouseEventArgs e)
{
   if (panelIsGrabbed)
   {
      panel1.Location = new Point(e.X + xDistance, e.Y + yDistance);
   }
}


private void panel1_MouseUp(object sender, MouseEventArgs e)
{
   panelIsGrabbed = false;
}