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Gopal Rao
Mumbai, Maharashtra, India
Javascript confirm box on button click in
Confirm box is used to display a message and get the user input(yes or no).
<asp:Button ID="Login" class="button_example" runat="server" Text="Login" onclick="Login_Click"
ValidationGroup="login_gr" Height="38px" OnClientClick="return confirm('Would you want to redirect');" />
Explanation of example 
When you click any button event the onclientclick called first and then onclick called.So in the above example in onclientclick the confim script written.If you click 'ok' in the confirm box it return true so that the onclick event called.If you click 'cancel' it return false so that the onclick not called.
Preview of confirm box 
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