How to stop a windows form from flickering in running state

See more:

SQL-Server-2005

C#3.0

C#

, +

I have a project that is a hospital management system.

There we have a problem: When we open a form it takes time and the form flickers

I have double buffered the form, but it doesn't seem to solve the flickering problem

I'm using vs 2008 (C# and sql server 2005 as backend)

private void frm_registration_Load(object sender, EventArgs e)
{


    Frm_Patientsearch psearch = new Frm_Patientsearch();
    psearch.registration11 = this;


    dataGridView1.Rows.Add(1);

    fillnewreglistview();
    newpatients();
    oldpatients();
    totalnewcollection();
    totaloldcollection();
}