problem in c# .net project

i am working the on project of the clinic Software in C#.net.
i have one problem in it. that is when have completed the design part of the software, and also done some coding part. when i saved the whole project. after that i reopened from the design form all the control which i have been used they are automatically gone,
And in my coding file line are automatically added. that are given bellow. Tell me the solution if you have.
--------------------------------------------------------------------------------------------------------------
private void InitializeComponent()
{
this.SuspendLayout();
//
// frmpatient
//
this.ClientSize = new System.Drawing.Size(508, 342);
this.Name = "frmpatient";
this.Load += new System.EventHandler(this.frmpatient_Load);
this.ResumeLayout(false);
}
--------------------------------------------------------------------------------------------------------------
and please tell me what is meaning of this code.😕