autopostback and validator

[Josep Bonet]

Hello,

I have an RadComboBox with autopostback set to "true". I've also a requiredvalidator on the RadComboBox. The Combo containes a "Select" element with a value "-1". When I switch from one item to the "Select" item, the validator fires and displays but the combo still makes a postback.

Sample:

<telerik:RadComboBox runat="server" ID="uxDepartment" Width="325px" AutoPostBack="true"
        CausesValidation="false" OnSelectedIndexChanged="uxDepartment_SelectedIndexChanged" />
<asp:RequiredFieldValidator runat="server" InitialValue="-1"
          ControlToValidate="uxDepartment" ErrorMessage="<%$ Resources:UI,inputRequired %>" />

Telerik version is 2010.2.826.35

Any idea?

Best regards

[Cori]

Hello Josep,

You have CausesValidation="false" on your RadComboBox, which excludes the control from being validated. Just remove that and the postback should be prevented by the validator.

I hope that helps.

[Silvio Silva Junior]

Great!