dropdownlist not passing selected value to string variable

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HI everyone I hava dropdownlist which i bind to a datatable when page loads my problem is when I select a value from the dropdown list it does not assign it to the variable
i have also tried using dropdowlistuser.selectedvalue it keeps displaying the first name and not anything i choose

any help would be apreciated

ASP.NET

<asp:DropDownList ID="DropDownListUser" runat="server" Width ="153px" Height ="22px" DataValueField="User_Name" DataTextField="User_Name" OnSelectedIndexChanged="selection_changed" AutoPostBack ="true" EnableViewState ="true">

C#

protected void selection_changed(object sender, EventArgs e)
    {
        string selUserName = DropDownListUser.SelectedItem.Text;
        lblWelcomeText.Text = "Welcome " + selUserName;

}

Posted 19-Nov-12 21:09pm

mrDivan

Updated 19-Nov-12 21:10pm

__TR__

v2

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**AmitGajjar** · Accepted Answer · 2012-11-19T21:23:00

Hi,

As you said that you are bounding your dropdownlist in the page load event. After postback event your dropdown will lost the bounding information.

you need to make sure your dropdownlist is rebound in pageload event ? (if you have specified IsPostBack condition then code will bound your dropdownlist for first time only)

i can't see any other issue with your code.

Edit
Also check with SelectedIndex. What value you are getting ?

Let me know if you still have any issue.