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Who caused postback?

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11 Oct 2013CPOL 5.5K   1  
How to check if a specific control caused postback?Let's say you have a button ( btnAdd ) among other controls...To check if it has just caused

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.

How to check if a specific control caused postback?

Let's say you have a button ( btnAdd ) among other controls...

To check if it has just caused postback, place the next code in Page_Load event handler:

    protected void Page_Load(object sender, EventArgs e)
    {
        // If button btnAdd is clicked
        if (Request.Params.ToString().IndexOf("btnAdd") > 0)
        {
            // do something here
        }
        else
        {
            // do something else
        }
    }

This article was originally posted at http://wiki.asp.net/page.aspx/405/who-caused-postback

License

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


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