Can't find selected items in a listbox

[timothy]

I have a listbox that I populate it from the database; then on submit check for selected items. It always returns false (not selected). However if I hardcode the values into the listbox I do find the correct selected values.

Any idea why this would be?

private void Page_Load(object sender, System.EventArgs e){
dba = new DBA.DBAccessor();
dba.ConnStr = @"Data Source=someDS;User ID=someID;Password=somePWD;";
sql = "SELECT GID, DESC FROM SOME_GROUPS";
ds = dba.GetOraDataSet(sql,"Groups");
lstRoles.DataSource=ds.Tables["Groups"];
lstRoles.DataTextField="DESC";
lstRoles.DataValueField="GID";
lstRoles.DataBind();		
}

private void Button1_Click(object sender, System.EventArgs e){
  ArrayList al = GetSelectedItems(lstRoles);
  // do something with the array "al"
}

private ArrayList GetSelectedItems(ListBox listBox){
ArrayList returnVal = new ArrayList();
foreach(ListItem item in listBox.Items)
  if(item.Selected) returnVal.Add(item.Value);

return returnVal;
}

Thanks for your thoughts!

 

[yu217171]

Bind your data under the condition,

if (!Page.IsPostBack)
BindData();

in your Page_Load() event handler.

HTH,
Keith

 

[timothy]

That did the trick thanks!