Loading User Control Dynamically in ASP.NET

Hi Guys,
             
                 Recently i have got a requirement to load the user control dynamically in to a  page.When i drag and drop the user Control  in design surface run the app it is  working fine but when i load the User Control dynamically(Programmatically) .I am unable to find the Control while post back .So i have started dig the functionality and  finally i have Fixed the issue .Here is the solution .
Step#1              
                             Write the method which take user Control name as  a parameter .Call this method wherever it is required   Add the placeholder control to your page and name it as "plchUserCtrlContainer"

private void LoadUserControl(string urcName)    
          {
           string path = Server.MapPath(@"~\Controls\" + urcName + ".ascx");
           if (System.IO.File.Exists(path))
           {
               Session["FormName"] = urcName;
               Control ucMainControl = LoadControl(@"~\Controls\" + urcName + ".ascx");
               if (ucMainControl != null)
               {
                   plchUserCtrlContainer.Controls.Clear();
                   ucMainControl.ID = Session["FormName"].ToString();
                   plchUserCtrlContainer.Controls.Add(ucMainControl);
                 
               }
           }
       }

Step#2       
        Write Page OnInit event functionality as i have specified below .

override protected void OnInit(EventArgs e)
       {
       
           Session["FormName"] = Request["FormName"].ToString();
           Control ucMainControl = LoadControl(@"~\Controls\" + Session["FormName"] + ".ascx");
           plchUserCtrlContainer.Controls.Clear();
           ucMainControl.ID = Session["FormName"].ToString();
           plchUserCtrlContainer.Controls.Add(ucMainControl);

       }

Step#3       
         You  can find the control using following  line of code

protected void btnsave_Click(object sender, EventArgs e)
       {
          
               Control assControl = (Control)FindControl(Session["FormName"].ToString());
       }

Happy coding …..