Question

Ex

  |Tab1|Tab2|Tab3| {    }
  |                     |
  |                     |
  |                     |
  |                     |
  |_____________________|

I am able to change the backcolor and forecolor of Tab.. but I want to change the color of that { } — > Empty space is this possible to do that. .. It shows default winforms color..help me in dis..

 private void Form1_Load(object sender, EventArgs e)
    {

    }


    private void tabControl1_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e)
    {
        Font fntTab;
        Brush bshBack;
        Brush bshFore;

        if ( e.Index == this.tabControl1.SelectedIndex)
        {
            fntTab = new Font(e.Font, FontStyle.Bold);
            bshBack = new System.Drawing.Drawing2D.LinearGradientBrush(e.Bounds, SystemColors.Control, SystemColors.Control, System.Drawing.Drawing2D.LinearGradientMode.BackwardDiagonal);
            bshFore = Brushes.Black;
            //bshBack = new System.Drawing.Drawing2D.LinearGradientBrush(e.Bounds, Color.LightSkyBlue , Color.LightGreen, System.Drawing.Drawing2D.LinearGradientMode.BackwardDiagonal);
            //bshFore = Brushes.Blue;
        }
        else
        {
            fntTab = e.Font;
            bshBack = new SolidBrush(Color.Red);
            bshFore = new SolidBrush(Color.Aqua);

            //bshBack = new SolidBrush(Color.White);
            //bshFore = new SolidBrush(Color.Black);
        }

        string tabName  = this.tabControl1.TabPages[e.Index].Text;
        StringFormat sftTab = new StringFormat();
        e.Graphics.FillRectangle(bshBack, e.Bounds);
        Rectangle  recTab = e.Bounds;
        recTab = new Rectangle( recTab.X,  recTab.Y + 4,  recTab.Width,  recTab.Height - 4);
        e.Graphics.DrawString(tabName, fntTab, bshFore, recTab, sftTab);

    }

Answer 1

I think the only way to give that space a color is to override the OnPaintBackground method of the window, so just paste this on your form (window)

you must also change the Appearance Property to “Normal”

private void Form1_Load(object sender, EventArgs e)
{

}

protected override void OnPaintBackground(PaintEventArgs e)
{
    base.OnPaintBackground(e);
    Rectangle lasttabrect = tabControl1.GetTabRect(tabControl1.TabPages.Count - 1);
    RectangleF emptyspacerect = new RectangleF(
            lasttabrect.X + lasttabrect.Width + tabControl1.Left,
            tabControl1.Top + lasttabrect.Y, 
            tabControl1.Width - (lasttabrect.X + lasttabrect.Width), 
            lasttabrect.Height);

    Brush b = Brushes.BlueViolet; // the color you want
    e.Graphics.FillRectangle(b, emptyspacerect );
}

for me it’s working perfectly