[Solved] Required Field Validation in detail table

[Storm]

I have the following code in a detail table ... the validation never happens... I also have the validation on the main table that works just fine.
Do you have an example of a validation when creating a record on a detail table

<telerik:GridBoundColumn DataField="TAB" FilterControlAltText="Filter TAB column"
    HeaderText="Tab" SortExpression="TAB" UniqueName="TAB">
    <ColumnValidationSettings EnableRequiredFieldValidation="True" RequiredFieldValidator-Text="Required - Tab"
        RequiredFieldValidator-ControlToValidate="TAB">
    </ColumnValidationSettings>
</telerik:GridBoundColumn>

[Chris]

I have the same issue...

[Princy]

Hi,

One suggestion is that you can add validator in edit mode dynamically as shown below.
C#:

protected void grid_ItemCreated(object sender, GridItemEventArgs e)
{
        if (e.Item is GridEditableItem && e.Item.IsInEditMode && e.Item.OwnerTableView.Name == "SampleErrorCauseTotal")
        {
              GridEditableItem item = (GridEditableItem)e.Item;
              GridTextBoxColumnEditor editor = (GridTextBoxColumnEditor)item.EditManager.GetColumnEditor("EmployeeID");
              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);
     }
}

Thanks,
Princy

[Chris]

Princy's solution does indeed add the validation, however for some reason, when trying to insert a new record in the Display table, the fields with the new validation added are not visible.  And then, when clicking on the "Insert" link, the validation kicks in, and the fields become visible, with the validation message that was added in the code-behind.

Here's my (VB) code:

Protected Sub RadGrid_InspectionLog_ItemCreated(ByVal sender As Object, ByVal e As GridItemEventArgs) Handles RadGrid_InspectionLog.ItemCreated
    If TypeOf e.Item Is GridDataItem Then
        Dim item As GridDataItem = DirectCast(e.Item, GridDataItem)
        Dim deleteBtn As LinkButton = DirectCast(item.FindControl("AutoGeneratedDeleteButton"), LinkButton)
        deleteBtn.Attributes.Add("onclick", "return confirm('Are you sure you want to delete row or record?')")
    End If

    'Validation for the Details View table
    If TypeOf e.Item Is GridEditableItem And e.Item.IsInEditMode And e.Item.OwnerTableView.Name = "ShipTable" Then
        Dim item As GridEditableItem = e.Item

        Dim edit_PONumber As GridTextBoxColumnEditor = item.EditManager.GetColumnEditor("PONumber")
        Dim cell As TableCell = edit_PONumber.TextBoxControl.Parent
        Dim validator As RequiredFieldValidator = New RequiredFieldValidator
        edit_PONumber.TextBoxControl.ID = "PONumber"
        validator.ControlToValidate = edit_PONumber.TextBoxControl.ID
        validator.ErrorMessage = "<br />This field is required"
        validator.ForeColor = Drawing.Color.Red
        cell.Controls.Add(validator)

        Dim edit_SNsShipped As GridTextBoxColumnEditor = item.EditManager.GetColumnEditor("SNsShipped")
        Dim cell2 As TableCell = edit_SNsShipped.TextBoxControl.Parent
        Dim validator2 As RequiredFieldValidator = New RequiredFieldValidator
        edit_SNsShipped.TextBoxControl.ID = "SNsShipped"
        validator2.ControlToValidate = edit_SNsShipped.TextBoxControl.ID
        validator2.ErrorMessage = "<br />This field is required"
        validator2.ForeColor = Drawing.Color.Red
        cell2.Controls.Add(validator2)
    End If
End Sub

--------- UPDATE -------
I just found at that this is a bug that the Telerik team is working on.
http://feedback.telerik.com/Project/108/Feedback/Details/44766-the-auto-implemented-column-validation-functionality-of-radgrid-using-the-enabler

[Pavlina]

Hello,

Indeed the problem with validation of detail tables persists. This bug is already logged in our public feedback portal and you can follow its status here:
http://feedback.telerik.com/Project/108/Feedback/Details/44766-the-auto-implemented-column-validation-functionality-of-radgrid-using-the-enabler

Please excuse us for the inconvenience caused.

Greetings,
Pavlina
the Telerik team