ComboBox question

[ethanwa]

I have a string "Hello". I want to add the string "Hello" as an item into a ComboBox. But if the string already exists, I want a MsgBox to popup saying "Sorry, item already exists". How do I do that?

-- Ethan --

[nswan]

add a combobox to your form

Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
        ComboBox1.Items.Add("hello")
        ComboBox1.Items.Add("nick")
        ComboBox1.Items.Add("swan")

        Dim i As Integer
        Dim temp As Boolean

        temp = True

        For i = 0 To ComboBox1.Items.Count - 1
            If StrComp("hello", ComboBox1.Items.Item(i)) = 0 Then
                temp = False
            End If

        Next

        If temp = True Then
            ComboBox1.Items.Add("hello")
        Else
            MessageBox.Show("already exists")
        End If
    End Sub

hope it helps

Nick

[Edneeis]

This is a bit shorter:

If Not ComboBox1.Items.Contains(TextBox1.Text) Then
            ComboBox1.Items.Add(TextBox1.Text)
        End If