Hi All,

I have a requirement that I have to  make my control change the opacity level so that the user can refer something in my control with other by placing on top of the other window / what ever they have. 

I know that we cannot control the opacity at the UserControl level in .net but there are ways to get the same functionality, example changing the backround color with Alpha. I was trying this example in my control, it works well in my test app which nothing but a Form with transparent background. But when I use the same control in the Docking Panel, I don't get the same effect. 

I create everything programatically, so the control is not dragged and dropped during design time. I use the Office 2007 style in my dockmanager setting. 

.// My usercontrol

LiveVariableDataControl wpf = new LiveVariableDataControl();

wpf.Size = new Size(200, 200);

UltraTile tile = new UltraTile();

tile.Control = wpf;

UltraTilePanel tilep = new UltraTilePanel();

tilep.TileSettings.ShowCloseButton = Infragistics.Win.DefaultableBoolean.True;

tilep.Appearance.BackColor = Color.Transparent;

tilep.add(tile);

DockableControlPane dockableControlPane1 = new DockableControlPane(tilep);

dockableControlPane1.Size = new Size(210, 210);

dockableControlPane1.Settings.Appearance.BackColor = Color.Transparent;

DockableControlPane dockableControlPane1 = new DockableControlPane(tilep);

dockableControlPane1.Size = new Size(210, 210);

dockableControlPane1.Settings.Appearance.BackColor = Color.Transparent;

DockAreaPane flpane =   MainFormDockManager.DockAreas.Add(DockedLocation.DockedLeft);

flpane.Panes.Add(dockableControlPane1);

flpane.Closed = false;

flpane.Tag = id;

flpane.Size = new System.Drawing.Size(264, 583);

flpane.Settings.Appearance.BackColor = Color.Transparent; 

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Any help is greatly appreciated.

Thanks,

-Shiv