How to speed up the process of loading controls in windows form.

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Hi all,

Can anybody tell me how to speed up the process of loading controls into windows form, i have a windows form in which i have added a flowlayoutpanel & few buttons into it. This keeps varying based on the buttons required by the user. Basically it has 25 rows & 4 columns or sometimes 12 row & 4 columns. The user can choose any of these options, once the user selects or clicks on the particular option, all the previously present formation is cleared & chosen 1 is formed. During this time a huge delay is observed. How to increase the speed of such operation....? I have set doublebuffered to true but still no use.

Also i tried with this piece of code,

C#

protected override CreateParams CreateParams
     {
         get
         {
             var parms = base.CreateParams;
             parms.Style &= ~0x08000000; 
             return parms;
         }
     }

All in vain. So any help will be appreciated.

Thanks in advance.

Posted 16-Jun-14 20:45pm

Jagadisha_Ingenious

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Alexander Sharykin · Answer 1 · 2014-06-16T23:35:00

i can suggest two options:
1. use SuspendLayout and ResumeLayout methods

C#

flowPanel.SuspendLayout();
flowPanel.Controls.Clear();
// add controls to flowPanel here
flowPanel.ResumeLayout();

2. remove current flowPanel and create a new one with the same properties

C#

// this = current form
this.SuspendLayout();
this.Controls.Remove(flowPanel);

var fp = new FlowLayoutPanel();
fp.Location = new Point(100,10);
fp.Size = new Size(200,200); 
// set other fp properties

// add controls to fp here

this.Controls.Add(fp);
this.ResumeLayout();