Which is the recommended way to fill all controls on a Web Form when user selects a record?

Question

I have a GridView control which shows a list of all employees. When user selects any employee from this list, the record is shown on a Web Form with all input controls pre-f

Answer 1

I used this code in my application-

A better approach would call to this mothod on gridview_select_index_change() event

 private void PickValues(int SerialNum) 
{ 
    DataSet ds = new DataSet(); 
    try 
    { 
        string Query = "SELECT * FROM tw_main WHERE sno = " + SerialNum; 
        ds = reuse.ReturnDataSet(Query, "Scheme"); 

        //Add Scheme Code to new Session Variable 
        Session.Add("SerialNumber", ds.Tables[0].Rows[0]["sno"].ToString()); 
        //Set Update Flag 
        TaskFlag = "UPDATE"; 

        //Fill values of selected record on the Entry Form 
        if (ds.Tables[0].Rows[0]["schm_code"].ToString().Length > 0) 
            lblSchemeCode.Text = ds.Tables[0].Rows[0]["schm_code"].ToString(); 

        ddlType.SelectedValue = ds.Tables[0].Rows[0]["schemetype"].ToString(); ddlDistrict.Text = ds.Tables[0].Rows[0]["dist_nm"].ToString(); ddlBlock.Text = ds.Tables[0].Rows[0]["block_nm"].ToString(); 
        txtSchemeName.Text = ds.Tables[0].Rows[0]["schm_nm"].ToString(); 
        txtPopulation2001.Text = ds.Tables[0].Rows[0]["population_2001"].ToString(); 
        txtSupplySource.Text = ds.Tables[0].Rows[0]["supply_source"].ToString(); 
        txtApprovalYear.Text = ds.Tables[0].Rows[0]["yr_approval"].ToString(); 
        txtApprovalLetterNum.Text = ds.Tables[0].Rows[0]["approval_letter_num"].ToString(); 
        txtApprovalAmount.Text = ds.Tables[0].Rows[0]["sch_apr_amt"].ToString(); 
        txtWaitedLetterNum.Text = ds.Tables[0].Rows[0]["sch_waited_details"].ToString(); 
        txtSchTransferLetterNum.Text = ds.Tables[0].Rows[0]["schm_trans_details"].ToString(); 
        txtSchTransferDate.Text = ds.Tables[0].Rows[0]["schm_trans_date"].ToString(); 
        txtOtherRemarks.Text = ds.Tables[0].Rows[0]["remarks"].ToString(); 
    } 
    catch (Exception ex) 
    { 
        ScriptManager.RegisterClientScriptBlock(this.Page, this.Page.GetType(), "Warning", "alert('" + ex.Message.ToString() + "');",true); 
    } 
    finally 
    { 
        ds.Dispose(); 
        gridSerialNo = 0; 
    } 
}

EDIT

There might be better approach to do so but this works certainly fine.