Equivalent of this C# code in VB

Question

The code in C# is as follows:

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)

        {

            //filling items in combobox1

            if (comboBox1.SelectedIndex==0)

            {

            comboBox2.Items.Clear();

            for (char i ='A' ; i < 'D'; i++)

            {

                comboBox2.Items.Add(i);

            }

            }

            if (comboBox1.SelectedIndex == 1 || comboBox1.SelectedIndex == 2 || comboBox1.SelectedIndex == 3)

            {

                comboBox2.Items.Clear();

                for (char i = 'A'; i < 'E'; i++)

                {

                    comboBox2.Items.Add(i);

                }

            }

            if (comboBox1.SelectedIndex == 4)

            {

                comboBox2.Items.Clear();

                for (char i = 'A'; i < 'F'; i++)

                {

                    comboBox2.Items.Add(i);

                }

            }

            if (comboBox1.SelectedIndex == 5 || comboBox1.SelectedIndex == 6)

            {

                comboBox2.Items.Clear();

                for (char i = 'A'; i < 'G'; i++)

                {

                    comboBox2.Items.Add(i);

                }

            }

            if (comboBox1.SelectedIndex == 7 || comboBox1.SelectedIndex == 8 || comboBox1.SelectedIndex == 9)

            {

                comboBox2.Items.Clear();

                for (char i = 'A'; i < 'I'; i++)

                {

                    comboBox2.Items.Add(i);

                }

            }

        }

I want to implement this code in VB. Using a converter, i got this:

Private Sub comboBox1_SelectedIndexChanged(sender As Object, e As EventArgs)

'filling items in combobox1

If comboBox1.SelectedIndex = 0 Then

comboBox2.Items.Clear()

For i As Char = "A"C To "D"C - 1

comboBox2.Items.Add(i)

Next

End If

If comboBox1.SelectedIndex = 1 OrElse comboBox1.SelectedIndex = 2 OrElse comboBox1.SelectedIndex = 3 Then

comboBox2.Items.Clear()

For i As Char = "A"C To "E"C - 1

comboBox2.Items.Add(i)

Next

End If

If comboBox1.SelectedIndex = 4 Then

comboBox2.Items.Clear()

For i As Char = "A"C To "F"C - 1

comboBox2.Items.Add(i)

Next

End If

If comboBox1.SelectedIndex = 5 OrElse comboBox1.SelectedIndex = 6 Then

comboBox2.Items.Clear()

For i As Char = "A"C To "G"C - 1

comboBox2.Items.Add(i)

Next

End If

If comboBox1.SelectedIndex = 7 OrElse comboBox1.SelectedIndex = 8 OrElse comboBox1.SelectedIndex = 9 Then

comboBox2.Items.Clear()

For i As Char = "A"C To "I"C - 1

comboBox2.Items.Add(i)

Next

End If

End Sub

When i compile the code, it returns an error saying Error

" 'For' loop control variable cannot be of type 'Char' because the type does not support the required operators"

Can you please help me out with this?

I have a project to submit tomorrow :S