change brush color with combobox

change brush color with combobox

I need the comboBox index to change the color of the brush/pen when it is
selected, I know it should be a simple fix, but i cant seem to get it.
public partial class Form1 : Form { private bool penDown = false; private
int radius = 5;
private SolidBrush brush = new SolidBrush(Color.IndianRed);
private Color[] colors = { Color.IndianRed, Color.Blue, Color.Green,
Color.Yellow, Color.Purple};
public Form1()
{
InitializeComponent();
}
private void btnClr_Click(object sender, EventArgs e)
{
Graphics g = panel1.CreateGraphics();
g.Clear(panel1.BackColor);
g.DrawImage(panel1.BackgroundImage, panel1.ClientRectangle, 0, 0,
panel1.BackgroundImage.Width,
panel1.BackgroundImage.Height, GraphicsUnit.Pixel);
g.Dispose();
}
private void btnQuit_Click(object sender, EventArgs e)
{
base.Close();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void panel1_MouseMove(object sender, MouseEventArgs e)
{
if (!penDown)
{
return;
}
Graphics g = panel1.CreateGraphics();
g.FillEllipse(brush, new Rectangle(e.X - radius, e.Y - radius, 2 *
radius, 2 * radius));
g.Dispose();
}
private void panel1_MouseDown(object sender, MouseEventArgs e)
{
penDown = true;
}
private void panel1_MouseUp(object sender, MouseEventArgs e)
{
penDown = false;
}
private void colorCB_SelectedIndexChanged(object sender, EventArgs e)
{
//int i = ((color
}
}
I need the comboBox index to change the color of the brush/pen when it is
selected, I know it should be a simple fix, but i cant seem to get it.