Dropdown list not autopostback with Google Chrome

hi., Dropdownlist is not autopostback with Google Chrome.,
in update panel i have mentioned update mode as conditional and trigger i have mentioned the event name and Control Name., Its working fine in IE browser., but not working in Chrome.,

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Are you using UpdatePanel1.Update() method. If you use conditional update mode then you have to force update of UpdatePanel by Update() method.
Rajeshk_cgmAuthor Commented:
No., here the code how i tried.,

  <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Always" ChildrenAsTriggers="true">
 <asp:DropDownList ID="ddlModel" runat="server" AutoPostBack="True" OnSelectedIndexChanged="ddlModel_SelectedIndexChanged" Width="175px">
            <asp:AsyncPostBackTrigger ControlID="ddlModel" EventName="SelectedIndexChanged" />            

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Rajeshk_cgmAuthor Commented:
Actually i have used Required field Validator for the dropdownlist.

now i have checked., after deleted the requiredfield validator., surprise its working fine, but i need to put required field validator for the dropdownlist., i dont want Telerik Controls to use.,

i cant understand the stackoverlfow solution too.
Can u say the solution., plz.,
Try adding CausesValidation="false" to the DropDownList
Rajeshk_cgmAuthor Commented:
No Use., its not working still. ofcouse i have solved my problem by changing my coding. but still i need to know because in every case i cant able to change my coding.,

Rajeshk_cgmAuthor Commented:
Just paste the code in your form., to solve the dropdownlist with validation control in google Chrome..

<script type="text/javascript">
    evt = ""; // Defeat the Chrome bug

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