Question

I have a little problem that i’m creating a simple search application which have a TEXT box and some combo boxes and radio buttons and a search button.
radio button names “Videos”, “Audios”, “Pics” etc..
when radiobutton of video is selected, a combobox is appear having options “YouTube”, “Metacafe” etc
I want that when i click “Metecafe” item in combobox of video, an other combo box appear having items Like “Entertainment”, “How To”, “+18” etc(categories of video search).
so “HOW TO SHOW/HIDE AN OTHER COBOBOX WITH THE HELP OF A COMBOBOX ITEM”
hope you have understood my problem.
screen shoot
i don’t know it is possible or not becux i’m beginner in VB
my English is not so good so please see below code:)

if combobox1.SelectedItem = "PAKISTAN" Then
    combobox2.Visible = True
End if

if combobox1.SelectedItem = "INDIA" Then
    combobox3.visible = true
    combobox2.visible = false
 End if

Obviously this code is wrong, this is a example that what i want to do
Thanks to all in advance..

NOTE:
i have try this codes but its not working..

if ComboBox1.Items(ComboBox1.SelectedIndex).ToString() = "PAKISTAN" Then

    ComboBox2.Visible = True

End if

sorry for spell and grammatical mistakes:(

Answer 1

Try using the SelectedItem Property like this

Private Sub ComboBox1_SelectedIndexChanged(sender As System.Object, e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
    If ComboBox1.SelectedItem.ToString = "PAKISTAN" Then
        ComboBox2.Visible = True
    End If
End Sub

Since you are wanting to check for multiple country’s you can use a Select Case Statement like this

Private Sub ComboBox1_SelectedIndexChanged(sender As System.Object, e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged

    Select Case ComboBox1.SelectedItem.ToString
        Case "PAKISTAN"
            ComboBox2.Visible = True
            ComboBox3.Visible = False
        Case "INDIA"
            ComboBox3.Visible = True
            ComboBox2.Visible = False
        Case Else
            ComboBox2.Visible = False
            ComboBox3.Visible = False
    End Select
End Sub