asked on

Get the return of a listbox

I am try9ing to see if a list box retuns anything, so that I can send a message tot he user that nothing was found.

I have tried theses
lbPers.items.counts = 0
lbPers.items = 0
lbpers.itmes.counts = ""

If txtSearch.Text = "" Then
            RegisterClientScriptBlock("showMessage", "<script language=""JavaScript""> alert('Type in a Personnel Name First.'); </script>")
        Else
            sql = "Select Distinct strSSN, strName + '|' + Substring(strSSN, 6,9) from tblPermTask where strname like '" & Name & "%' " _
                & "Order by strName + '|' + Substring(strSSN, 6,9), strSSN"
           
            lbPers.Items.Add(New ListItem("Click Person to Add", "0"))
            buildDD(sql, lbSoldier)
        End If

        If lbPers.Items = 0 Then
            RegisterClientScriptBlock("showMessage", "<script language=""JavaScript""> alert('Personnel does not currently have any Issues.'); </script>")
        End If

        txtSearch.Text = ""

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waltersnowslinarnold

Use the following condition..,

lbPers.items IS NULL

kdeutsch

ASKER

Hi,
Still using asp.net 1.1 and IS NULL or ISNULL of DBNULL are all incorrect and give blue underlines, never been able to solve that one.

ASKER CERTIFIED SOLUTION

Carl Tawn

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waltersnowslinarnold

You can use lbPers.Items = null instead.

kdeutsch

ASKER

carl_tawn
Ok the == did not work for me but the follwoing did
If lbPers.Items.Count <= 1 Then

You got me think that my count really starts at 2 because I add in the click even to check that they picked on a person.

Carl Tawn

Ah yes, sorry, should have been a single =. Put it down to a bit of C# to VB cross-over :o)