Click here to Skip to main content
14,022,235 members
Click here to Skip to main content
Add your own
alternative version

Stats

11.8K views
Posted 11 Oct 2013
Licenced CPOL

Preventing Multiple Button Clicks

, 11 Oct 2013
Rate this:
Please Sign up or sign in to vote.
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 wiki.asp.net 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.

Concept

  • 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 ASP.net button.

Markup

<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)

 

        Me.Validate()

 

        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)

{

   

    this.Validate();

   

    if (Page.IsValid) {

    }

    //****************************

    //Save information to database.

    //****************************

   

    if (SaveButton.Disabled) {

        SaveButton.Disabled = false;

    }

}

License

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

Share

About the Author

ASP.NET Community
United States United States
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.

The ASP.NET Wiki articles moved to CodeProject in October 2013 and will live on, loved, protected and updated by the community.
Group type: Collaborative Group

760 members


You may also be interested in...

Comments and Discussions

 
-- There are no messages in this forum --
Permalink | Advertise | Privacy | Cookies | Terms of Use | Mobile
Web04 | 2.8.190417.4 | Last Updated 11 Oct 2013
Article Copyright 2013 by ASP.NET Community
Everything else Copyright © CodeProject, 1999-2019
Layout: fixed | fluid