check box lst problem - help ? - resolved

Printable View

Oct 24th, 2003, 02:11 PM
kanakaprasad

check box lst problem - help ? - resolved

hi

i have a check box list in page and a button when i check some items and submit by button i am not able to read the selected items or checked items status at server. is there a way to it or i am doing it wrong this is the code

sub buton1_click(sender as object, e as eventargs)
Dim i As Integer
For i=0 To checkboxlist1.Items.Count - 1
If checkboxlist1.Items(i).Selected Then
response.write( checkboxlist1.Items(i).Text + "<br>")
End If
Next
end sub

thanks in advance --

VB Code:

<%@ Import Namespace="System.Collections" %>
<script language="vb" runat="server">
Protected Sub btnTest_Click(ByVal sender As Object, ByVal e As System.EventArgs)
    For index As Integer = 0 To cblTest.Items.Count - 1
        If cblTest.Items(index).Selected Then
            Response.Write(cblTest.Items(index).Text)
            Response.Write(" is selected.<br/>")
        End If
    Next
End Sub
Protected Overrides Sub OnLoad(ByVal e As System.EventArgs)
    If Not Page.IsPostBack Then
        bindCheckBoxList
    End If
End Sub 
Private Sub bindCheckBoxList()
    Dim items As New ArrayList()
    items.Add("Item 1")
    items.Add("Item 2")
    items.Add("Item 3")
    cblTest.DataSource = items
    cblTest.DataBind
End Sub 
</script>
<html>
    <body>
        <form runat="server">
            <asp:CheckBoxList ID="cblTest" Runat="server"/><br/>
            <asp:Button ID="btnTest" Runat="server" Text="Test"
                OnClick="btnTest_Click"/>
        </form>
    </body>
</html>

The only way this didn't work is if, in the OnLoad Sub, I don't check for Page.IsPostBack. The OnLoad method or Page_Load eventhandler, will fire before the the button click event is processed. So perhaps you are rebinding on postback and wiping out anything you selected before posting; then in the button click event nothing would be selected.

Oct 26th, 2003, 11:52 AM
kanakaprasad

i think thats what i am doing wrong. i am not checking for the ispostback. thanks alot i shall work onit and let you know. thanks once again

kanaka
Oct 27th, 2003, 08:51 AM
kanakaprasad

resolved - thanks

the problem is solved thanks folks

kanak a