[Solved] CustomValidator -reference

[Robin Lilly]

Protected Sub CustomValidator1_ServerValidate(ByVal [source] As Object, ByVal args As System.Web.UI.WebControls.ServerValidateEventArgs)

Dim myGrid As RadGrid = CType(source, CustomValidator).Parent.Parent

To get the reference to the radgrid from the Edit Form the above reference in Prometheus now gets Telerik.Web.UI.GridTableRow and not the RadGrid reference.

What is the correct syntax to get to the RadGrid to handle CustomValidators to find multiple controls within Prometheus?

[Vlad]

Hi Robin,

I'm afraid that this code will not return the grid in both "Prometheus" and "Classic" version. You can try this instead:

Dim myGrid As RadGrid = CType(CType(source, CustomValidator).Parent.Parent, GridItem).OwnerTableView.OwnerGrid

Kind regards,
Vlad
the Telerik team

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[Robin Lilly]

Vlad,

That isn't the correct syntax. I have a demo to show you this error - I can email to you. Below are key code elements.

You get the following:
Unable to cast object of type 'Telerik.Web.UI.GridTableRow' to type 'Telerik.Web.UI.GridItem'.

Robin

Protected Sub CustomValidator1_ServerValidate(ByVal [source] As Object, ByVal args As System.Web.UI.WebControls.ServerValidateEventArgs)

Dim myGrid As RadGrid = CType(CType(source, CustomValidator).Parent.Parent, GridItem).OwnerTableView.OwnerGrid

args.IsValid =

False

CustomValidator1.ErrorMessage =

"<br>Some ERROR "

End Sub

....

<

telerik:GridTemplateColumn

HeaderText="CompanyName" UniqueName="CompanyName" >

<EditItemTemplate>

<asp:TextBox ID="TextBox7" runat="server" Text='<%# Bind( "CompanyName" ) %>'></asp:TextBox>

<asp:CustomValidator ID="CustomValidator1" runat="server" Display="Dynamic" OnServerValidate="CustomValidator1_ServerValidate"

ErrorMessage="</br>Only one Project Number or Job Number can be selected."></asp:CustomValidator>

</EditItemTemplate>

<ItemTemplate><%#DataBinder.Eval(Container.DataItem, "CompanyName")%>

</ItemTemplate>

</telerik:GridTemplateColumn>

[Ves]

Hello Robin,

Indeed, this code might depend on the EditMode -- InPlace or EditForms. However, you can use the following line and it will not depend on this:

Dim myGrid As RadGrid = CType(CType(source, CustomValidator).NamingContainer), GridItem).OwnerTableView.OwnerGrid

Hope this helps.

Regards,
Ves
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center