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How can i determine which dropdownlist caused the postback on Page Load event ?

Posted on 2016-11-17
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Last Modified: 2016-11-17
Hi Experts ,

Is there any method or property that will tell which drop-down list causes the postback property on ASP.NET web form
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Question by:karthik80c
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Lokesh B R earned 500 total points
ID: 41891363
Hi,

You can get the control which caused postback as below.

 
 
protected void Page_Load(object sender, EventArgs e)
        {
            if (IsPostBack)
            {
                Control c = null;

                string controlName = Page.Request.Params.Get("__EVENTTARGET");

                if (!String.IsNullOrEmpty(ctrlName))
                {
                    c = page.FindControl(ctrlName);
                }

            }
        }

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