This is a migrated thread and some comments may be shown as answers.

Unable to read value from template coloum

1 Answer 26 Views
Grid
This is a migrated thread and some comments may be shown as answers.
Millfield
Top achievements
Rank 1
Millfield asked on 18 Sep 2015, 10:54 AM

HI I have created a Radgrid and added a textbox as a template coloumn, 

When the user presses the ok button i want any values that have been entered into the textbox to be returned

I believe i have code correct on the event of the ok button but i am always returned a Null value. I have looked at a sample of code found here http://kandydeol.blogspot.co.uk/2013/09/fetching-telerik-radgrid-column-and.html

and as far as I can see all is correct,

aspx code :-

 <telerik:RadGrid ID="GRD_OTCOrder" runat="server" AutoGenerateColumns="False" OnItemDataBound="GRD_OTCOrder_ItemDataBound" Culture="en-GB" OnNeedDataSource="GRD_OTCOrder_NeedDataSource" GroupPanelPosition="Top" Width="1173px">
        <MasterTableView TableLayout="Auto">
            <Columns>
                <telerik:GridBoundColumn DataField="TxtName" HeaderText="OTC Name / Type"></telerik:GridBoundColumn>
                <telerik:GridBoundColumn DataField="Packsize" HeaderText="Pack size" ItemStyle-Width="100px">
                    <ItemStyle Width="100px"></ItemStyle>
                </telerik:GridBoundColumn>
                <telerik:GridBoundColumn DataField="Units" ItemStyle-Width="100px">
                    <ItemStyle Width="100px"></ItemStyle>
                </telerik:GridBoundColumn>
                <telerik:GridTemplateColumn HeaderText="Qty Required">
                    <ItemTemplate>
                        <asp:TextBox ID="TB_QTYOrder" runat="server" Width="50px"></asp:TextBox>
                    </ItemTemplate>
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn>
                    <ItemTemplate>
                        <telerik:RadComboBox ID="DDL_Reason" runat="server"></telerik:RadComboBox>
                    </ItemTemplate>
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn Visible="false">
                    <ItemTemplate>
                        <asp:Label ID="LAB_OTCID" runat="server"></asp:Label>
                    </ItemTemplate>
                </telerik:GridTemplateColumn>

            </Columns>
        </MasterTableView>
    </telerik:RadGrid>
    <telerik:RadButton ID="BTN_Order" runat="server" Text="Place Order" OnClick="BTN_Order_Click"></telerik:RadButton>
    <telerik:RadComboBox ID="DDL_House" runat="server" ></telerik:RadComboBox>

 

and the cs code attached to the ok button

 

protected void BTN_Order_Click(object sender, EventArgs e)
        {

            foreach (GridDataItem data in GRD_OTCOrder.Items)
            {
                //find controls in Grid
                RadComboBox reason = (RadComboBox)data.FindControl("DDL_Reason");
                TextBox qtyre = (TextBox)data.FindControl("TB_QTYOrder");
                Label otc = (Label)data.FindControl("LAB_OTCID");

                //create new OTC Object in memory 
                OTCOrders temp = new OTCOrders();
                temp.House = Convert.ToInt64(DDL_House.SelectedValue);
                temp.OrderBy = Websession.sessionuser.UserID;
                temp.OTCType = Convert.ToInt32(otc.Text);
                if (!string.IsNullOrEmpty(qtyre.Text))
                {
                    temp.QTY = Convert.ToInt32(qtyre.Text);
                }

                temp.BolSent = false;
                temp.BolRec = false;
                temp.SentBy = 0;
                temp.RecBy = 0;
                temp.DteSent = DateTime.Now;
                temp.dterec = DateTime.Now;
                temp.House = Convert.ToInt64(DDL_House.SelectedValue);
                temp.Reason = reason.SelectedValue;
                temp.DteOrdered = DateTime.Now;
                //Save object to database
                    temp.SaveOrder();
                
            }

        }

 

Many Thanks

 

 

1 Answer, 1 is accepted

Sort by
0
Konstantin Dikov
Telerik team
answered on 23 Sep 2015, 06:52 AM
Hi Millfield,

The code snippet that you have provided seems correct and after testing it with dummy data, everything is working correctly on my side:
<telerik:RadGrid ID="GRD_OTCOrder" runat="server" AutoGenerateColumns="False" Culture="en-GB" OnNeedDataSource="RadGrid1_NeedDataSource" GroupPanelPosition="Top" Width="1173px">
    <MasterTableView TableLayout="Auto">
        <Columns>
            <telerik:GridBoundColumn DataField="TxtName" HeaderText="OTC Name / Type"></telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="Packsize" HeaderText="Pack size" ItemStyle-Width="100px">
                <ItemStyle Width="100px"></ItemStyle>
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="Units" ItemStyle-Width="100px">
                <ItemStyle Width="100px"></ItemStyle>
            </telerik:GridBoundColumn>
            <telerik:GridTemplateColumn HeaderText="Qty Required">
                <ItemTemplate>
                    <asp:TextBox ID="TB_QTYOrder" runat="server" Width="50px"></asp:TextBox>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn>
                <ItemTemplate>
                    <telerik:RadComboBox ID="DDL_Reason" runat="server">
                        <Items>
                            <telerik:RadComboBoxItem Text="item1" Value="item1" />
                            <telerik:RadComboBoxItem Text="item2" Value="item2" />
                            <telerik:RadComboBoxItem Text="item3" Value="item3" />
                        </Items>
                    </telerik:RadComboBox>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn Visible="false">
                <ItemTemplate>
                    <asp:Label ID="LAB_OTCID" runat="server"></asp:Label>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
 
        </Columns>
    </MasterTableView>
</telerik:RadGrid>
<telerik:RadButton ID="BTN_Order" runat="server" Text="Place Order" OnClick="BTN_Order_Click"></telerik:RadButton>
<telerik:RadComboBox ID="DDL_House" runat="server"></telerik:RadComboBox>

And the code-behind:
protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
{
    DataTable table = new DataTable();
    table.Columns.Add("ID", typeof(int));
    table.Columns.Add("TxtName", typeof(string));
    table.Columns.Add("Packsize", typeof(string));
    for (int i = 0; i < 5; i++)
    {
        table.Rows.Add(i, "TxtName" + i, "Packsize" + i);
    }
 
    (sender as RadGrid).DataSource = table;
}
 
protected void BTN_Order_Click(object sender, EventArgs e)
{
    string result = "";
    foreach (GridDataItem data in GRD_OTCOrder.Items)
    {
        TextBox qtyre = (TextBox)data.FindControl("TB_QTYOrder");
        result += "row" + data.ItemIndexHierarchical + " TextBox value: " + qtyre.Text + "<br />";
    }
 
    Response.Write(result);
}

On a side note, please ensure that you are not calling the Rebind method of the grid, because it will clear the values in the TextBox control.

Hope this helps.


Regards,
Konstantin Dikov
Telerik
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Feedback Portal and vote to affect the priority of the items
Tags
Grid
Asked by
Millfield
Top achievements
Rank 1
Answers by
Konstantin Dikov
Telerik team
Share this question
or