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Get values from Textbox in <telerik:GridTemplateColumn>

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This is a migrated thread and some comments may be shown as answers.
io
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io asked on 31 Jan 2020, 05:15 PM

I have a radgrid with a Textbox inside a telerik:GridTemplateColumn

 

<telerik:GridTemplateColumn  HeaderText="<%$ Resources:Language, lbl_rg_nota %>" UniqueName="Nota" AllowFiltering="false" ReadOnly="true">  
        <ItemTemplate>
               <asp:Textbox ID="txtNota" runat="server" CssClass="form-control form-control-sm" ></asp:Textbox> 
        </ItemTemplate> 
</telerik:GridTemplateColumn>

 

I want to get access to the values the user writes in the textboxes after they click the save button, this is the code behind the button

 

protected void btnLevantaPeticion_OnClick(object sender, EventArgs e)
        {
            try
            {
                var dtHtasSeleccionadas = (Session["dtHtasSeleccionadas"] != null) ? (DataTable)Session["dtHtasSeleccionadas"] : new DataTable();
                var Folio = CDatos.SP_PeticionesAlmacen.SP_MaxFolio();
                foreach (GridDataItem item in rgHerramientas.MasterTableView.Items)
                {
                    TextBox txtNota = item.FindControl("txtNota") as TextBox;
                    ShowMessage(txtNota.ToString(), "success");
                }
                DataTable dt = (DataTable)Session["dtHtasSeleccionadas"];
                foreach(DataRow dr in dt.Rows)
                {
                    //dtHtasSeleccionadas.Columns.Add("IdHerramienta");
                    //dtHtasSeleccionadas.Columns.Add("Codigo");
                    //dtHtasSeleccionadas.Columns.Add("NombreCorto");
                    //dtHtasSeleccionadas.Columns.Add("Cantidad");
                    //dtHtasSeleccionadas.Columns.Add("Costo", typeof(double));
                    //dtHtasSeleccionadas.Columns.Add("Gasto", typeof(double));
                    //dtHtasSeleccionadas.Columns.Add("Nota");
                    for (int i = 0; i< int.Parse(dr.ItemArray[4].ToString()); i++)
                    {
                        var id2 = CDatos.DDetalles.InsertDetallePeticiones(int.Parse(Folio.ToString()),int.Parse(dr.ItemArray[0].ToString()),1,decimal.Parse(dr.ItemArray[5].ToString()),1,"");   
                    }
                }
                this.ShowMessage(Resources.Language.mess_peticion, "success");
            }
            catch (Exception ex) { this.ShowMessage(ex.Message, "danger"); }
        }

 

I want to be able to save the data from the textboxes as the last paramenter of the InsertCommand, instead of the ""

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Attila Antal
Telerik team
answered on 05 Feb 2020, 10:21 AM

Hi Io,

When using template columns, the developer working with it must make sure the Controls in the template are bound using the Bind() expression like in the example below:

<telerik:GridTemplateColumn HeaderText="<%$ Resources:Language, lbl_rg_nota %>" UniqueName="Nota" AllowFiltering="false" ReadOnly="true">
    <ItemTemplate>
        <asp:TextBox ID="txtNota" runat="server" Text='<%# Bind("TheFieldThatNeedsToBeUpdated") %>'></asp:TextBox>
    </ItemTemplate>
</telerik:GridTemplateColumn>

When this control is bound using the bind() expression, then the data information will be available in the Inserting/Updating event arguments. 

See how this demo has the binding Grid - Form Template Edit Form.

The following example shows how to extract the data Update all, individual or selected rows using RadGrid with InPlace edit mode

 

Kind regards,
Attila Antal
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Attila Antal
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