How I Can Perform A Edit & Select Operation On One Grid View With Different Data Sources

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ASP.NET

In my master page having a one grid view and my content page having different image buttons on click on that particular image button that particular data source are bind to that master page grid view...
and at i wants to perform a edit,update and select operations on that grid view for different data sources that will bind in content page

for example ..this is a content page code

protected void ibtnOwner_Click(object sender, ImageClickEventArgs e)
  {
      DataSet mydata = (DataSet)Session["owner"];
      Ownerbind();
      ScriptManager.RegisterStartupScript(this, this.GetType(), "Pop", "openModal();", true);

  }

this is a master page code

protected void grdview_RowEditing(object sender, GridViewEditEventArgs e)
    {
        if (Session["owner"] != null)
        {
            grdview.EditIndex = e.NewEditIndex;

        }

i use session...but this is not work properly...