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

Required Field Validator in RadGrid

8 Answers 366 Views
Grid
This is a migrated thread and some comments may be shown as answers.
Corey
Top achievements
Rank 1
Corey asked on 02 Sep 2011, 04:34 PM
I have a radgrid using inplace editting inside of an ajaxpanel.

I need to have a requiredfieldvalidator to prevent a field entry in the radgrid.

Can this be done?  I've removed the ajaxpanel and had the same issue.

8 Answers, 1 is accepted

Sort by
0
Jayesh Goyani
Top achievements
Rank 2
answered on 03 Sep 2011, 06:03 AM
Hello COREY,

Grid / Flexible Server-Side Validation

or

<rad:RadGrid id="RadGrid1" runat="server" AutoGenerateColumns="False">
<MasterTableView>
   <Columns>
   <rad:GridBoundColumn UniqueName="ContactName" HeaderText="ContactName" DataField="ContactName"></rad:GridBoundColumn>
   <rad:GridEditCommandColumn UniqueName="EditCommandColumn"></rad:GridEditCommandColumn>
   </Columns>
</MasterTableView>
</rad:RadGrid>


private void RadGrid1_ItemCreated(object sender, Telerik.WebControls.GridItemEventArgs e)
{
  if(e.Item is GridEditableItem && e.Item.IsInEditMode)
  {
     GridEditableItem item = e.Item as GridEditableItem;
     GridTextBoxColumnEditor editor = (GridTextBoxColumnEditor)item.EditManager.GetColumnEditor( "ContactName");
     TableCell cell = (TableCell)editor.TextBoxControl.Parent;
  
     RequiredFieldValidator validator = new RequiredFieldValidator();
     editor.TextBoxControl.ID = "ID_for_validation";
     validator.ControlToValidate = editor.TextBoxControl.ID;
     validator.ErrorMessage = "*";
     cell.Controls.Add(validator);
  }
}


Let me know if any concern.

Thanks,
Jayesh Goyani
0
Twan
Top achievements
Rank 1
answered on 18 Jul 2013, 11:57 AM
This described solution is broken when upgrading from 2012.4.411.40 to 2013.2.717.40.
A follow up call (OnDataBind) will throw Object reference not set to instance of an object.
0
Shinu
Top achievements
Rank 1
answered on 18 Jul 2013, 12:18 PM
Hi,

The above code snippet is for versions before Q1 2013.So please try the below code snippet.

ASPX:
<telerik:GridBoundColumn DataField="ShipCity" HeaderText="ShipCity" UniqueName="ShipCity" />

 C#:
if (e.Item is GridEditableItem && e.Item.IsInEditMode)
       {
           GridEditableItem item = e.Item as GridEditableItem;
           GridTextBoxColumnEditor editor = (GridTextBoxColumnEditor)item.EditManager.GetColumnEditor("ShipCity");
           TableCell cell = (TableCell)editor.TextBoxControl.Parent;
           RequiredFieldValidator validator = new RequiredFieldValidator();
           validator.ControlToValidate = editor.TextBoxControl.ID;
           validator.ErrorMessage = "*";
           cell.Controls.Add(validator);
       }

You can also have a look at this documentation on Validation.

Thanks,
Shinu
0
Twan
Top achievements
Rank 1
answered on 18 Jul 2013, 12:26 PM
That C# code is what is causing the bug not the .aspx
0
Shinu
Top achievements
Rank 1
answered on 19 Jul 2013, 03:12 AM
Hi Twan

The C# code was working fine at my end,have you tried the same code.The version im using is 2013.2.611.40.Please try the code in the documentation for the latest version.There are two codes for versions before Q1 2013 and after.So make sure you have used the right code.
If this doesn't help,please provide your full code.

Thanks,
Shinu
0
Twan
Top achievements
Rank 1
answered on 25 Apr 2014, 10:26 AM
Hey,

I have found the problem in our code. In a previous implementation it was recommended to set the id of the column editor in order for the required field validator to work. It was a line like this:

editor.TextBoxControl.ID = "someId";

The same goes for DropDown editor. Removing this line fixed the issue.

Regards,

Twan
0
Mohd
Top achievements
Rank 1
answered on 07 Oct 2015, 08:29 AM
<telerik:GridTemplateColumn HeaderText="Completion Date" UniqueName="CompletionDate"
                                        DataType="System.DateTime" SortExpression="CompletionDate">
                                        <ItemTemplate>
                                            <asp:Label runat="server" ID="CompletionDateLabel"  DataFormatString="{0:d}"  Text='<%# Eval("CompletionDate") %>'>
                                            </asp:Label>
                                        </ItemTemplate>
                                        <EditItemTemplate>
                                            <telerik:RadDatePicker ID="CompletionDatePicker" runat="server" DbSelectedDate='<%# Bind("CompletionDate") %>'>
                                            </telerik:RadDatePicker>
                                            <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="*"
                                                ControlToValidate="CompletionDatePicker"></asp:RequiredFieldValidator>
                                        </EditItemTemplate>
                                    </telerik:GridTemplateColumn>


This works for me
0
Mohd
Top achievements
Rank 1
answered on 07 Oct 2015, 08:30 AM
<telerik:GridTemplateColumn HeaderText="Completion Date" UniqueName="CompletionDate"
                                        DataType="System.DateTime" SortExpression="CompletionDate">
                                        <ItemTemplate>
                                            <asp:Label runat="server" ID="CompletionDateLabel"  DataFormatString="{0:d}"  Text='<%# Eval("CompletionDate") %>'>
                                            </asp:Label>
                                        </ItemTemplate>
                                        <EditItemTemplate>
                                            <telerik:RadDatePicker ID="CompletionDatePicker" runat="server" DbSelectedDate='<%# Bind("CompletionDate") %>'>
                                            </telerik:RadDatePicker>
                                            <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="*"
                                                ControlToValidate="CompletionDatePicker"></asp:RequiredFieldValidator>
                                        </EditItemTemplate>
                                    </telerik:GridTemplateColumn>
Tags
Grid
Asked by
Corey
Top achievements
Rank 1
Answers by
Jayesh Goyani
Top achievements
Rank 2
Twan
Top achievements
Rank 1
Shinu
Top achievements
Rank 1
Mohd
Top achievements
Rank 1
Share this question
or