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Unable to fetch text from a textbox with numeric up-down extender

Posted By:      Posted Date: September 13, 2010    Points: 0   Category :ASP.Net
I have a textbox with numeric updown extender.I want the text of the textbox.I have written code in code file is String a=txtHour.Text//  Source FIle COde<asp:TextBox ID="txtHour" runat="server" ReadOnly="True" Width="45"                     Style="text-align:center" Height="20px"></asp:TextBox>                                       <cc1:NumericUpDownExtender ID="NumericUpDownExtenderHr" runat="server"                     Enabled="True"                     Minimum="00" Maximum="23"                    TargetControlID="txtHour" Width="40">                </cc1:NumericUpDownExtender>

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