i tried several times but it is not working

  protected void gvPkgcbndate_RowDataBound(Object sender, GridViewRowEventArgs e)
    {
         
       if (e.Row.Cells[1].Text == "dontselect")
            {
                if (e.Row.RowType == DataControlRowType.DataRow)
                {
                    if (!(string.IsNullOrEmpty(e.Row.Cells[1].Text)))
                    {
                       LinkButton lnk = new LinkButton();
                       lnk.ID = "lnk ";
                       lnk.Text = "click here";

                e.Row.Cells[1].Controls.Add(lnk);
                   }
               }
    }


protected void lnk_Click(object sender, EventArgs e)
  {
      try
      {
var exist = lbllist.Items.FindByValue(gvPkgcbndate.SelectedRow.Cells[1].Text);
         string[] smsg = gvPkgcbndate.SelectedRow.Cells[1].Text.Split('-');
         string txt1 = smsg[1].ToString().Trim();
         lbllist.Items.Add(txt1.Substring(0, txt1.Length - 2));
      }
      catch (Exception ex)
      {
          lblErr.Text = ex.Message.ToString();

      }
  }

  protected void gvPkgcbndate_DataBound(object sender, EventArgs e)
    {
       lnk_Click(sender, e);
    }