DropDownList问题--急
各位，我在页面上使用了一个DropDownList，其各项是动态加入的，代码如下：

DataController dataControl = new DataController();
SqlConnection connection = dataControl.getConnection();
string sql = "select * from NewsClassInfo ";
SqlDataAdapter dataAdapter = new SqlDataAdapter(sql, connection);

DataSet dataSet = new DataSet();
dataAdapter.Fill(dataSet, "newsInfo ");
DataTable dataTable = dataSet.Tables[ "newsInfo "];

foreach (DataRow dataRow in dataTable.Rows)
{
kindDropDownList.Items.Add(new ListItem(dataRow[1].ToString(), dataRow[0].ToString()));

}

但是不知道为什么，当改变这个DropDownList的值时采用kindDropDownList.SelectedItem.Value 不能获得正确的值，永远都是第一条的值，为什么？

[解决办法]
代码贴全点，这个看了有点模糊，要么就是page_load下没加if(!ispostback){}，要么就是你的循环不正确
[解决办法]
kindDropDownList.DataSource=dataSet;
kindDropDownList.DataTextField = "... ";
kindDropDownList.DataValueField = "... ";
kindDropDownList.DataBind();

你用这样的方式绑定看看
[解决办法]
if(!IsPostBack)
{
DataController dataControl = new DataController();
SqlConnection connection = dataControl.getConnection();
string sql = "select * from NewsClassInfo ";
SqlDataAdapter dataAdapter = new SqlDataAdapter(sql, connection);

DataSet dataSet = new DataSet();
dataAdapter.Fill(dataSet, "newsInfo ");
DataTable dataTable = dataSet.Tables[ "newsInfo "];

foreach (DataRow dataRow in dataTable.Rows)
{
kindDropDownList.Items.Add(new ListItem(dataRow[1].ToString(), dataRow[0].ToString()));

}
}
[解决办法]
另外这段代码放在if(!ispostback){｝中
[解决办法]
if(!IsPostBack)
{