SelectedIndexChanged method not working

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1.00/5 (1 vote)

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C#

protected void ClassDropDownList_SelectedIndexChanged(object sender, EventArgs e)
{
            if (ClassDropDownList.SelectedValue.Selected)
            {                 
            string myXMLfile = Server.MapPath("~/OrgList.xml");
            DataSet NAME_DATASET = new DataSet();
            NAME_DATASET.ReadXml(myXMLfile);
            NameDropDownList.DataSource = NAME_DATASET;
            NameDropDownList.DataTextField = "NAME";
            NameDropDownList.DataValueField = "ID";
            NameDropDownList.DataBind();
            }
}

I already have a class dropdownlist .when an item is selected in the class dropdown list i want the name dropdownlist to be populated. why is not popuating . what else should be done can i get the c# code please.

Posted 20-Sep-11 8:12am

rajh7

Updated 20-Sep-11 8:19am

Pradeep Shukla

v3

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Pradeep Shukla 20-Sep-11 14:29pm

What object is ClassDropDownList? a CombobBox or ListBox.

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-09-20T08:35:00

Is this variable with weird name ClassDropDownList (Wow! a variable name of some type is given a name started with "Class". You probably name applications "Application*.exe" and your projects "Project*.csproj", don't you? :-))… so, is this variable really of the type System.Web.UI.WebControls.DropDownList? If so, you either typed not the same code you really try run, or what you say about your observation is not true. This is because the property SelectedValue is of the type System.String, so it cannot have a member called Selected, so this code would not compile.

Before asking questions, keep in mind that it's good to say truth and nothing but truth.

—SA