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autopostback and validator

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ComboBox
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Josep Bonet
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Josep Bonet asked on 10 Sep 2010, 02:27 PM
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

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Cori
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answered on 10 Sep 2010, 02:29 PM
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.
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Silvio Silva Junior
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answered on 14 Dec 2013, 10:48 PM
Great!
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Josep Bonet
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Silvio Silva Junior
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