DevExpress开发中bandedGridView的特殊上下标设置

DevExpress开发项目中，GridView和bandedGridView的列标题经常需要显示一些带有下标或上标的文字，如下图所示：

如果上标是平方或是立方，可以通过输入法完成，平方（二次方）如下所示：

同样，立方（三次方）也是一样的方法，不在赘述。但对于下标和其他的一些上标，则可用如下方法进行：

  1 // 表头设置
  2 private void bandedGridView1_CustomDrawBandHeader(object sender, DevExpress.XtraGrid.Views.BandedGrid.BandHeaderCustomDrawEventArgs e)
  3 {
  4     DrawBandHeader("Test", null, "1", "gridBand1", sender, e);
  5     DrawBandHeader("Test", "1", null, "gridBand2", sender, e);
  6     DrawBandHeader("Test", "1", "1", "gridBand3", sender, e);
  7 }
  8 
  9 /// <summary>
 10 /// 重绘Band名称
 11 /// </summary>
 12 /// <param name="strBase">底数</param>
 13 /// <param name="subStr">下标</param>
 14 /// <param name="supStr">上标</param>
 15 /// <param name="bandName">GridBand名称</param>
 16 /// <param name="sender"></param>
 17 /// <param name="e"></param>
 18 private void DrawBandHeader(string strBase, string subStr, string supStr, string bandName, object sender, DevExpress.XtraGrid.Views.BandedGrid.BandHeaderCustomDrawEventArgs e)
 19 {
 20     if (!e.Band.Name.Equals(bandName))
 21         return;
 22 
 23     float startX = (e.Bounds.Left + e.Bounds.Right) / 2;
 24     float startY = e.Bounds.Top;
 25     e.Info.Caption = "";
 26     e.Painter.DrawObject(e.Info);
 27 
 28     // 绘制底数
 29     Font baseFont = new Font(e.Appearance.Font.OriginalFontName, e.Appearance.Font.Size);
 30     e.Graphics.DrawString(strBase, baseFont, Brushes.Black, startX, startY);
 31 
 32     // 求上标或下标起点的参考位置
 33     startX += e.Graphics.MeasureString(strBase, baseFont).Width - 2;
 34     
 35     // 上下标大小字体
 36     Font scriptFont = new Font(e.Appearance.Font.OriginalFontName,
 37                     e.Appearance.Font.Size - 3);
 38     // 绘制下标
 39     if (subStr != null)
 40     {
 41         e.Graphics.DrawString(subStr, scriptFont, Brushes.Black, startX, startY + 9);
 42     }
 43 
 44     // 绘制上标
 45     if (supStr != null)
 46     {
 47         e.Graphics.DrawString(supStr, scriptFont, Brushes.Black, startX, startY + 2);
 48     }
 49     
 50     e.Handled = true;
 51 }
 52 
 53 // 列标题设置
 54 private void bandedGridView1_CustomDrawColumnHeader(object sender, DevExpress.XtraGrid.Views.Grid.ColumnHeaderCustomDrawEventArgs e)
 55 {
 56     DrawColHeader("Game", null, "1", "bandedGridColumn1", sender, e);
 57     DrawColHeader("Game", "1", null, "bandedGridColumn2", sender, e);
 58     DrawColHeader("Game", "1", "1", "bandedGridColumn3", sender, e);
 59 }
 60 
 61 /// <summary>
 62 /// 重绘列标题
 63 /// </summary>
 64 /// <param name="strBase">底数</param>
 65 /// <param name="subStr">下标</param>
 66 /// <param name="supStr">上标</param>
 67 /// <param name="colName">列名</param>
 68 /// <param name="sender"></param>
 69 /// <param name="e"></param>
 70 private void DrawColHeader(string strBase, string subStr, string supStr, string colName, object sender, DevExpress.XtraGrid.Views.Grid.ColumnHeaderCustomDrawEventArgs e)
 71 {
 72     if (e.Column != null && !e.Column.Name.Equals(colName))
 73         return;
 74 
 75     float startX = (e.Bounds.Left + e.Bounds.Right) / 2;
 76     float startY = e.Bounds.Top;
 77     e.Info.Caption = "";
 78     e.Painter.DrawObject(e.Info);
 79 
 80     // 绘制底数
 81     Font baseFont = new Font(e.Appearance.Font.OriginalFontName, e.Appearance.Font.Size);
 82     e.Graphics.DrawString(strBase, baseFont, Brushes.Black, startX, startY);
 83 
 84     // 求上标或下标起点的参考位置
 85     startX += e.Graphics.MeasureString(strBase, baseFont).Width - 2;
 86 
 87     // 上下标大小字体
 88     Font scriptFont = new Font(e.Appearance.Font.OriginalFontName,
 89         e.Appearance.Font.Size - 3);
 90     // 绘制下标
 91     if (subStr != null)
 92     {
 93         e.Graphics.DrawString(subStr, scriptFont, Brushes.Black, startX, startY + 9);
 94     }
 95 
 96     // 绘制上标
 97     if (supStr != null)
 98     {
 99         e.Graphics.DrawString(supStr, scriptFont, Brushes.Black, startX, startY + 2);
100     }
101 
102     e.Handled = true;
103 }

View Code

实现效果如下如所示，可根据需要替换上下标内容：