The original post is from this site. It is given in C++ and I’ve written the same for C#.Net.

http://support.microsoft.com/kb/816184/en-us?spid=1249&sid=122

Source Code to change the background colour of an MDI Form:

Copy and paste this code in MDI Form’s Load Event:

———————————–

private void frmMDI_Load(object sender, EventArgs e)

{

MdiClient ctlMDI;

// Loop through all the controls of the form controls looking for the control of type MdiClient.

IEnumerator iEnum = this.Controls.GetEnumerator();

while ( iEnum.MoveNext())

{

try

{

// Try to cast the control to type MdiClient.

System.Windows.Forms.Control pCtrl = (System.Windows.Forms.Control)iEnum.Current;

ctlMDI = (MdiClient)pCtrl;

}

catch ( InvalidCastException )

{

continue;

}

// Set the BackGround colour property of the MdiClient control.

ctlMDI.BackColor = this.BackColor;

break;

}

}

—————————————-

Happy Coding….