[Mr. DotNet]

PHP كود :

Try
            If con.State = ConnectionState.Closed Then con.Open()
            Dim SQLstr As String = "select Age from TableName Where Name='" & ComboBox1.SelectedValue & "' And ClassName='" & ComboBox2.SelectedValue & "'"
            Dim Cmd As New SqlClient.SqlCommand(SQLstr, Con)
            TextBox1.Text = Cmd.ExecuteScalar
            If Con.State = ConnectionState.Open Then Con.Close()
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        End Try