Error in update & Delete

Hello freinds,
I am using a dataset page dataset.xsd. In it i am having a table named asp3, Whenever i am trying to insert the data in the table through DataSet1TableAdapters.asp31TableAdapter class, data is inserted but if i am trying to update or delete the data it is giving an error. My code is :

 protected void insrt_btn_Click(object sender, EventArgs e)
        {
            int emp_id = int.Parse(id_txtbx.Text);
            int sal = int.Parse(sal_txtbx.Text);
            DataSet1TableAdapters.asp31TableAdapter da3 = new DataSet1TableAdapters.asp31TableAdapter();
            da3.Insert(emp_id, name_txtbx.Text, sal);
            GridView2.DataSource = da3.GetData();
            GridView2.DataBind();
        }

        protected void updt_btn_Click(object sender, EventArgs e)
        {
            int emp_id = int.Parse(id_txtbx.Text);
            int sal = int.Parse(sal_txtbx.Text);
            DataSet1TableAdapters.asp31TableAdapter da3 = new DataSet1TableAdapters.asp31TableAdapter();
            da3.Update(emp_id, name_txtbx.Text, sal);
            GridView2.DataSource = da3.GetData();
            GridView2.DataBind();
        }

        protected void dlt_btn_Click(object sender, EventArgs e)
        {
            int emp_id = int.Parse(id_txtbx.Text);
            int sal = int.Parse(sal_txtbx.Text);
            DataSet1TableAdapters.asp31TableAdapter da3 = new DataSet1TableAdapters.asp31TableAdapter();
            da3.Delete(emp_id);
            GridView2.DataSource = da3.GetData();
            GridView2.DataBind();
        }
    }
}

The bold lines are giving error.

Error	2	'DAL_BLL.DataSet1TableAdapters.asp31TableAdapter' does not contain a definition for 'Delete' and no extension method 'Delete' accepting a first argument of type 'DAL_BLL.DataSet1TableAdapters.asp31TableAdapter' could be found (are you missing a using directive or an assembly reference?)	C:\Users\KANHA\Documents\Visual Studio 2010\Projects\DAL BLL\DAL BLL\WebForm1.aspx.cs	63	17	DAL BLL (dataset)

Error	1	No overload for method 'Update' takes 3 arguments	C:\Users\KANHA\Documents\Visual Studio 2010\Projects\DAL BLL\DAL BLL\WebForm1.aspx.cs	53	13	DAL BLL (dataset)

Thanx in advance

With regards,
Rakesh Sharma

Tags: ASP.NET, Database Development, Dataset