DataGridView重绘单元格中某些字体颜色,大小

    主要通过对单元格进行重绘,改变元单元格字体大小和颜色   

    protected override void OnCellPainting(DataGridViewCellPaintingEventArgs e)        {            base.OnCellPainting(e);            if (e.Value != null)            {                string cellWord = e.Value.ToString();//单元格原本内容                string keyWord = e.Value.ToString();//要改变的单元格关键字内容                Rectangle cellRect = e.CellBounds;//默认单元格                Rectangle keyRect = e.CellBounds;//单元格内容区域，默认定义为单元格大小                float fontSizeWeight = 96 / (72 / e.CellStyle.Font.Size); // 字体实际像素宽度                float fontSizeHeight = 96 / (72 / e.CellStyle.Font.Size); // 字体实际像素高度                //关键字的坐标                keyRect.X += cellWord.Substring(0, cellWord.IndexOf(keyWord)).Length * (int)(fontSizeWeight / 2);                keyRect.Y += (e.CellBounds.Height - (int)fontSizeHeight) / 2;                //原文本的Y坐标                cellRect.Y = keyRect.Y;                using (Brush foreColor = new SolidBrush(e.CellStyle.ForeColor), fontColor = new SolidBrush(this.FontColor))                {                    //绘制背景色                    e.PaintBackground(e.ClipBounds, false);                    //绘制背景色(被选中状态下)                    if (e.State == (DataGridViewElementStates.Displayed | DataGridViewElementStates.Selected | DataGridViewElementStates.Visible))                        e.PaintBackground(e.ClipBounds, true);                    //分别绘制原文本和现在改变颜色的文本                    e.Graphics.DrawString(cellWord, this.Font, foreColor, cellRect, StringFormat.GenericDefault);                    e.Graphics.DrawString(keyWord, this.Font, fontColor, keyRect, StringFormat.GenericDefault);                    //提交事务                    e.Handled = true;                }            }        }

定义该重绘控件的字体,前景色和背景图片

        #region properties        /// <summary>        /// 获取或设置该控件下显示字体的大小.        /// </summary>        [Browsable(true)]        [DefaultValue(typeof(Font), "宋体,9"), Description("获取或设置该控件下显示字体的大小.")]        public override Font Font        {            get { return this._font; }            set { this._font = value; }        }        /// <summary>        /// 获取或设置当前字体颜色.        /// </summary>        [Description("获取或设置当前字体颜色.")]        public Color FontColor        {            get { return this._fontColor; }            set { this._fontColor = value; }        }        /// <summary>        /// 获取或设置当前控件的背景图片.        /// </summary>        [DefaultValue(typeof(Image), ""), Description("获取或设置当前控件的背景图片.")]        public Image BackImage        {            get { return this._backImage; }            set { this._backImage = value; }        }        #endregion

以上代码仅供参考