C# combobox color [duplicate]

This question already has answers here: 开发者_运维技巧 Closed 11 years ago.

Possible Duplicate:

Colour Individual Items in a winforms ComboBox?

is any simple example to set custom background color of each item?

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You can achieve your objective by calling DrawItem of the ComboBox, For reference see the following method.

private void comboBox1_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e)
    {
        // Override this function to draw items in the Color comboBox

        // Get the Graphics Object (aka. CDC or Device Context Object )
        // passed via the DrawItemEventArgs parameter
        Graphics g = e.Graphics ;

        // Get the bounding rectangle of the item currently being painted
        Rectangle r = e.Bounds ;

        if ( e.Index >= 0 ) 
        {
            Rectangle rd = r; 
            r.X = r.Right ; 

            // Get the brush object, at the specifid index in the colorArray
            SolidBrush b = (SolidBrush)colorArray[e.Index];
            // Fill a portion of the rectangle with the selected brush
            g.FillRectangle(b, rd);


            // Draw the rectangle
            e.Graphics.DrawRectangle(new Pen(new SolidBrush(Color.Black), 2 ), r );

            if ( e.State == ( DrawItemState.NoAccelerator | DrawItemState.NoFocusRect))
            {
                // if the item is not selected draw it with a different color
                e.Graphics.FillRectangle(new SolidBrush(Color.White) , r);
                e.DrawFocusRectangle();
            }
            else
            {
                // if the item is selected draw it with a different color
                e.Graphics.FillRectangle(new SolidBrush(Color.LightBlue) , r);
                e.DrawFocusRectangle();
            }
        }
    }