calling a a user control method from another

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ASP.NET

Hi All,


I have a page P1.aspx and a user control UC1 inside it having bindgrid(int id) funtion as below.

public void bindgrid(int id)
       {

           DataSet ds = XYZLogic.GetFiles(id,1);
           if (ds.Tables[0].Rows.Count > 0)
           {
               grdRegulationFile.DataSource = ds.Tables[0];
               grdRegulationFile.DataBind();
           }
           else
           {
               grdRegulationFile.DataSource = null;
               grdRegulationFile.DataBind();
           }
       }

Now I have another user control UC2 that is called in UC1. In UC2 I have a button and on click of that I want to bindgrid() of UC1.


I have done something like below.

protected void btnSubmit_ServerClick(object sender, EventArgs e)
       {
           UC2 ad = new UC2();
           ad.bindgrid(1);
       }

but i am getting null value reference.
Please help me.