C#更改tabControl选项卡颜色的方法
本文实例讲述了C#更改tabControl选项卡颜色的方法。分享给大家供大家参考，具体如下：
privatevoidForm1_Load(objectsender,EventArgse)
{
this.tabControl1.DrawMode=System.Windows.Forms.TabDrawMode.OwnerDrawFixed;
this.tabControl1.DrawItem+=newDrawItemEventHandler(this.tabControl1_DrawItem);
}
privatevoidtabControl1_DrawItem(objectsender,System.Windows.Forms.DrawItemEventArgse)
{
StringFormatsf=newStringFormat();
sf.LineAlignment=StringAlignment.Center;
sf.Alignment=StringAlignment.Center;
if(e.Index==tabControl1.SelectedIndex)
e.Graphics.FillRectangle(Brushes.Red,e.Bounds.X,e.Bounds.Y,e.Bounds.Width,e.Bounds.Height);
else
e.Graphics.FillRectangle(Brushes.White,e.Bounds.X,e.Bounds.Y,e.Bounds.Width,e.Bounds.Height);
e.Graphics.DrawString(((TabControl)sender).TabPages[e.Index].Text,
System.Windows.Forms.SystemInformation.MenuFont,newSolidBrush(Color.Black),e.Bounds,sf);
}
1.在Form类的构造函数中添加下列语句:
this.tabControl1.DrawMode=System.Windows.Forms.TabDrawMode.OwnerDrawFixed; this.tabControl1.DrawItem+=newDrawItemEventHandler(this.tabControl1_DrawItem);
2.实现下列函数:
privatevoidtabControl1_DrawItem(objectsender,System.Windows.Forms.DrawItemEventArgse)
{
FontfntTab;
BrushbshBack;
BrushbshFore;
if(e.Index==this.tabControl1.SelectedIndex)
{
fntTab=newFont(e.Font,FontStyle.Bold);
bshBack=newSystem.Drawing.Drawing2D.LinearGradientBrush(e.Bounds,SystemColors.Control,SystemColors.Control,System.Drawing.Drawing2D.LinearGradientMode.BackwardDiagonal);
bshFore=Brushes.Black;
}
else
{
fntTab=e.Font;
bshBack=newSolidBrush(Color.Blue);
bshFore=newSolidBrush(Color.Black);
}
stringtabName=this.tabControl1.TabPages[e.Index].Text;
StringFormatsftTab=newStringFormat();
e.Graphics.FillRectangle(bshBack,e.Bounds);
RectanglerecTab=e.Bounds;
recTab=newRectangle(recTab.X,recTab.Y+4,recTab.Width,recTab.Height-4);
e.Graphics.DrawString(tabName,fntTab,bshFore,recTab,sftTab);
}
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