how to use ajax masked edit extender for phone numer in Asp.Net

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i have used this codes but its not working?

XML

<asp:TextBox ID="txtPhoneNumber" runat="server"></asp:TextBox>
<asp:MaskedEditExtender ID="MaskedEditExtender1" runat="server" TargetControlID="txtPhoneNumber"
MaskType="Number" Mask="999-999-9999" MessageValidatorTip="true">
</asp:MaskedEditExtender>

Posted 16-Feb-15 10:07am

Vasu 252

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TheKarateKid · Answer 1 · 2015-02-19T06:06:00

If your ASPX page is throwing exception, please check whether ScriptManager instance is added in your page or Master Page which you might be using. ScriptManager should be added after form tag in ASPX/Master page.

Once ScriptManager is present, MasterEditExtender should work, and by looking at the HTML you have provided, it will not display the mask characters and format once the data is entered. To retain the masking please set the ClearMaskOnLostFocus property for MaskedEditExtender. So the resultant HTML will be like this

XML

<ajaxToolkit:MaskedEditExtender ID="MaskedEditExtender1" runat="server" TargetControlID="txtPhoneNumber"
            MaskType="Number" Mask="999-999-9999" MessageValidatorTip="true"
            ClearMaskOnLostFocus="False" >
        </ajaxToolkit:MaskedEditExtender>

Hope that helps,
Thanks