MDI child form flickered while opening.

Yes. but not working

Hi,

Have you tried the following?

this.DoubleBuffered = true;

Put this in the constructor after the InitializeComponent.

not working

Mmm.. Lot of childs (Controls) in MDI...

Try this in your Form Load (or) MdiForm Contructor after Component Initialization call:

// Stop the flicker
SetStyle(ControlStyles.DoubleBuffer, true);
SetStyle(ControlStyles.AllPaintingInWmPaint, true);

Can you provide screen shot of your mdi child form? What are the content of MDI child form?