Mysqlexception Was Nnhandled !! How to Fixed it ??

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RD = Cmd.ExecuteReader()

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Private Sub btnCari_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCari.Click
If RadioButton1.Checked = True Then
Using Koneksi As New MySqlConnection
Koneksi.Open()
Cmd = New MySqlCommand("Select * From kamus where Indonesia='" & txtCari.Text & "'", Koneksi)
RD = Cmd.ExecuteReader()
RD.Read()
If RD.HasRows = True Then
txtArti.Text = RD.Item("Dayak")
End If
tampil()
End Using

ElseIf RadioButton2.Checked = True Then
Using Koneksi As New MySqlConnection
Koneksi.Open()
Cmd = New MySqlCommand("Select * From kamus where Dayak='" & txtCari.Text & "'", Koneksi)
RD = Cmd.ExecuteReader()
RD.Read()
If RD.HasRows = True Then
txtArti.Text = RD.Item("Indonesia")
End If
tampil()
End Using

End If
End Sub

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