Disable Submit button in case of multiple click.. (C#)

Question

My Problem is ,I have a simple web form, which contains two textboxes and a button.there are some asp.net validator controls on page.so i want client side disabling of butto

Answer 1

This is the correct and simple way to do this:

Create a helper method in your application (say in a Utlity Namespace):

    Public Shared Sub PreventMultipleClicks(ByRef button As System.Web.UI.WebControls.Button)
        button.Attributes.Add("onclick", "this.disabled=true;" & button.Page.ClientScript.GetPostBackEventReference(button, String.Empty).ToString)
    End Sub

Now from the code behind of each of your web pages you can simply call:

    Utility.PreventMultipleClicks(button1)

where button1 is the the button you want to prevent multiple clicks.

What this does is simply sets the on click handler to: this.disabled=true

and then appends the buttons own post back handler, so we get:

onclick="this.disabled=true";__doPostBack('ID$ID','');"

This does not break the default behaviour of the page and works in all browsers as expected.

Enjoy!