Disabling And Enabling A Button During Postback In Asp.net

I'm trying to disable a button and change its text while doing a postback and then i want to change the text back to normal when postback is complete. , ClientScript.GetPostBackEventReference(button, string.Empty),text)); }

Solution 2:

You forgot to return true.

<asp:Button ID="b_Generate" runat="server" onclick="b_Generate_Click" 
            OnClientClick="this.disabled = true; this.value = 'Please Wait...'; return true;" 
            Text="Generate PPT"  UseSubmitBehavior="false" 
            style="z-index: 1; left: 05px; top: 50px; position: absolute; width: 110px;" 
            BorderStyle="Ridge" Font-Bold="True" 
            ToolTip="click here"
/>