Hello All (newbie),
I want child controls added to my Document manager to have a transparent background.

My main form has a background image that I want to show through when I add child controls using the DocumentManager.

On a windows form I can simply state "BackgroundColor = Color.Transparent".

What's the equivalent operation to documents added to my document manager?

Thanks in advance,
-tomas

My application has a DocumentManager that displays document in SingleDocument mode.
(DockManager.DocumentStyle.DocumentViewStyle = SingleDocument).

I want all my child NUIDocuments to display a background image. But I want to set the image on my main form, so I only have to set it once, and all the child documents allow the background image to show through.

I can set the background image programmatically using this code:
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
nDockManager1.RootContainer.Parent = nuiPanel3; // where I want my docs displayed
nDockManager1.RootContainer.BackgroundImage = Resource1.globe_bkgd; // my background image in a Resource file
nDockManager1.RootContainer.BackgroundImageLayout = ImageLayout.Stretch;
nDockManager1.RootContainer.BackColor = Color.Transparent; // needed to show the background image. not sure why.
}

I can successfully see my image if my document style is set to "MdiTabbed".

But if I set my image to "SingleDocument" or "MdiStandard" I can only see the background color (and Color.Transparent does not work; it needs to be Color.Red, Color.Green or any other non-transparent color).


I am adding documents with this code:
NUIDocument doc = new NUIDocument("My Control Title", -1, new UserControl2());
nDockManager1.DocumentManager.AddDocument(doc);

it adds the controls properly. And if DocumentStyle=MdiTabbed everything works well. But I need to use MdiSingle for display purposes.

Any suggestions?

-tomas