I have a form that has 15+ ComboBoxes and when I select values from those ComboBoxes those ComboBox selections must be used as filter to search through a large table in my database. A gridView will display the returned data.

I have used the same format of code throughout the rest of my project and it works perfectly, But when I select an item from my "Location" DropDownBox and select a CHILD node to search through my database I get the error 'Input string was not in a correct format' and I'm guessing its because i am using null values

here is my Location.cs Class

On the //Error line is where I am getting the 'Input string was not in the correct format' error, any suggestions please. I cant understand why I am having this problem or how to get values from child nodes.

thank you in advance

Hello Community,

i have a question about the custom attributes.

For example, I want to bind an Item with 3 attributes. A Text, Value and a Custom Attribute.

The Data come from a Datatable. I need to do this Server Side.

The custom attribute don't need to be visible.
It's just a second ID.

Define

        Dim dtBank As DataTable = Allgemeines.GETBank()

        If dtBank.Rows.Count > 0 Then

            rcbBankID.DataSource = dtBank

            rcbBankID.DataBind()

'Maybe this is totaly wrong

            For Each drBank As DataRow In dtBank.Rows

                rcbBankID1.Attributes.Add("BLZ", drBank("BLZ"))

            Next

        End If

Use                      

        Dim strTest As String = rcbBankID.SelectedItem.Attributes("BLZ").ToString