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Old September 13th, 2011, 08:59 AM
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Default using listbox items for query

Hello everybody! I have an idea how to use listbox items for query, but it doesn't work. "Input string was not in a correct format."

What is wrong with this, is this good idea or not? Thank you for help!

Public Sub popisUpita_SelectedIndexChanged(sender As Object, e As EventArgs)
For Each izabraniUpit As System.Web.UI.WebControls.ListItem In popisUpita.Items
If izabraniUpit.Selected Then
izabraniUpiti.AppendFormat("{0},", izabraniUpit.Value)

End If
izabraniUpiti.Remove(izabraniUpiti.Length - 1, 1)
'Remove last comma
End Sub

Using objConn As New OleDbConnection("PROVIDER=Microsoft.Jet.OLEDB.4.0; " & "DATA SOURCE=" & Server.MapPath("HR.mdb;"))
Using objCmd As New OleDbCommand("Select [Skraćena tvrtka-naziv],", objConn)

objCmd.CommandText += " izabraniUpiti.ToString()"
' objCmd.CommandText.Remove(objCmd.CommandText.Lengt h - 1, 1)
objCmd.CommandText += " WHERE (Općina = '" & izabranaOpcina & "')"
objCmd.CommandType = CommandType.Text

Dim DR As OleDbDataReader = objCmd.ExecuteReader()
upit.DataSource = DR
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