problem on override onpaint of custom control

Question

I have created a custom control derived from button class . I am trying to override its onpaint method but having problems in setting its text colour . Problems are the coloured text is not visible until i click the control and as i run the form it gets disappeared .

 public partial class custombutton : Button  
{  
    public custombutton()  
    {  
        InitializeComponent();  
    }         
    protected override void OnPaint(PaintEventArgs pe)  
    {  
         base.OnPaint(pe);  
        RenderRainbowText(this.Text, 'V', this);  
    }  
  public void RenderRainbowText(string Text, char keyword, Control Lb)  
    {  

        using (System.Drawing.Graphics formGraphics = this.CreateGraphics())  
        {  
            string[] chunks = Text.Split(keyword);  
            string word = keyword.ToString();  
            // USED FOR DRAWING chunk  
            SolidBrush brush = new SolidBrush(Color.Red);  
            SolidBrush[] brushes = new SolidBrush[] {  
                               new SolidBrush(Color.Black) };  
            
            float x = 0;  
            for (int i = 0; i < chunks.Length; i++)  
            {  
                formGraphics.DrawString(chunks[i], Lb.Font, brushes[0], x, 0); // brushes[i] has been replaced with brushes[0]  
                x += (formGraphics.MeasureString(chunks[i], Lb.Font)).Width;  
                //CODE TO MEASURE AND DRAW  
                if (i < (chunks.Length - 1))  
                {  
                    formGraphics.DrawString(word, Lb.Font, brush, x, 0);  
                    x += (formGraphics.MeasureString(",", Lb.Font)).Width;  
                }  
            }  
        }  
    }  

what i am trying is to change the color of a single character of the text string of the button . I have checked this code on a form before without using on usercontrol but facing problems on using custom button . Please update me .

Answer 1

Don't use CreateGraphics but use Graphics from PaintEventArgs