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Posted 11 Oct 2013
Licenced CPOL

Preventing Multiple Button Clicks

, 11 Oct 2013
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This article will demonstrate a way to prevent multiple button clicks on ASP.NET Web Forms. Preventing multiple clicks can help prevent multiple

This articles was originally at but has now been given a new home on CodeProject. Editing rights for this article has been set at Bronze or above, so please go in and edit and update this article to keep it fresh and relevant.

This article will demonstrate a way to prevent multiple button clicks on ASP.NET Web Forms. Preventing multiple clicks can help prevent multiple server-side events from firing and thus reduces the chance of duplicate information being saved to the database.


  • Disable a button control on client side.
  • After performing some server-side tasks, enable the button from code-behind.

Please Note

In this example, you will need to be using an HTML button instead of button.


<input type="button" id="SaveButton" value="Save" runat="server" onclick="this.disabled=true;" onserverclick="SaveButton_ServerClick" />


To Enable Client-Side Validation

If you want to enable client side validation along with the button click, the markup should be 'slightly' changed to.

<input type="button" id="SaveButton" value="Save" runat="server" onclick="if(Page_ClientValidate() == true){this.disabled=true;}" onserverclick="SaveButton_ServerClick" />       


Code-behind (Visual Basic)

    Protected Sub SaveButton_ServerClick(ByVal sender As Object, ByVal e As System.EventArgs)




        If Page.IsValid Then


            'Save information to database.


        End If


        If SaveButton.Disabled Then

            SaveButton.Disabled = False

        End If

    End Sub


Code-behind (CSharp)

protected void SaveButton_ServerClick(object sender, System.EventArgs e)





    if (Page.IsValid) {



    //Save information to database.



    if (SaveButton.Disabled) {

        SaveButton.Disabled = false;




This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


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ASP.NET Community
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The ASP.NET Wiki was started by Scott Hanselman in February of 2008. The idea is that folks spend a lot of time trolling the blogs, googlinglive-searching for answers to common "How To" questions. There's piles of fantastic community-created and MSFT-created content out there, but if it's not found by a search engine and the right combination of keywords, it's often lost.

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