Question

How to add background images on MDI forms?

Asked by: Jerry_Pang

How to add background images on MDI forms?

that empty semi gray background where childforms appear?

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Asked On
2006-08-11 at 01:02:05ID21950989
Tags

background

,

mdi

,

image

,

form

Topic

.NET

Participating Experts
3
Points
500
Comments
9

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Answers

 

by: angelIIIPosted on 2006-08-11 at 01:06:55ID: 17294389


Simply set the MDI parent form's BackgroundImage property.

 

by: omegaomegaPosted on 2006-08-11 at 01:11:39ID: 17294408

Hello, Jerry,

You need to use the MDIClient contriol for this.  This doesn't show up as an available control within the intelli-sense of the MDI form, but you can find it by iterating through the controls on the MDI form and comparing the TypeOf each to MdiCLient.  For example, the following code placed on the MDI form will set the variable MDI_Frame to point to this control.

    Private WithEvents MDI_Frame As MdiClient

    For Each CurrentItem As Control In Me.Controls
        If (TypeOf CurrentItem Is MdiClient) Then
            MDI_Frame = DirectCast(CurrentItem, MdiClient)
            Exit For
        End If
    Next CurrentItem

Cheers,
Randy

 

by: Jerry_PangPosted on 2006-08-11 at 03:02:23ID: 17294836

>Simply set the MDI parent form's BackgroundImage property.
nope. it changes the background of the form - the toolbar area, the menu area,
but not the "empty hallow" i dont know the term.
the empty "workspace" is still greyed out.

my friend was able to do this on his project a long time ago with vb6.


the dark grey part. not the child form but the parents dark gray area.
http://www.c-sharpcorner.com/winforms/MDICascadeGAG2.jpg

 

by: Jerry_PangPosted on 2006-08-11 at 03:04:38ID: 17294842

 

by: omegaomegaPosted on 2006-08-11 at 03:32:38ID: 17294986

Hello, Jerry,

Try using the MDIClient control for this.  (See note above for additional info.)

Cheers,
Randy

 

by: Jerry_PangPosted on 2006-08-11 at 03:41:32ID: 17295010

thanx. will try tomorrow

 

by: Jerry_PangPosted on 2006-08-13 at 22:55:00ID: 17308224

hi..

im stuck, im having trouble from your suggestion..
what's DirectCast in c#?
how do you declare MDI_Frame?
i suppose you could uh... use like this to change background? MDI_Frame.backgroundimg.loadpic("c:\img.jpg") ???

this is what ive done so far... trying to convert..

private void  applybackground()
{

foreach (Control CurrentItem in this.Controls)
{
      if (typeof(CurrentItem) == MdiClient)
            {
            MDI_Frame =  DirectCast(CurrentItem, MdiClient)
            break;
            }
      }
}
}

 

by: Idle_MindPosted on 2006-08-14 at 08:59:01ID: 17311161

Jerry_Pang,

I'm using C# 2005 Express.  At DESIGN-TIME I set the BackgroundImage() property as angelIII stated and it works.

The Image does NOT appear in the IDE...but it does at RUN-TIME.

~IM

 

by: Jerry_PangPosted on 2006-08-14 at 18:13:52ID: 17314928

funny... let me try.

20120131-EE-VQP-002

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