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guys help me with the code for adding items in the combo box but without duplicates. i have an assignment which is a simple web browser. the combo box will be the address bar. and everytime i input an address, it will be added in combo box and should not repeat just like in the browsers. i hope you could help me. thanks

ComboBox.FindString will return the index of an item that matches.

See if this helps.

If combox1.FindString("The String To Search") < 0 Then
            combox1.Items.Add("The String To Search")
        End If

The following will add "some text" to the combo box only if it doesn't already exist.

Dim text As String = "some text"

If Not ComboBox1.Items.Contains(text) Then
End If
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