DevExpress GridView 单元格进度条

DevExpress提供进度条的控件ProgressBarControl，并且能在GridView的单元格中使用，效果图如图所示

关于单元格绑定progressBarControl，这里我简单介绍一下，列的ColumnEdit属性选择ProgressBarControl，然后设置选择的repositoryitemprogressBar1的ShowTitle属性来显示中间的百分数文本即可（其中，这里的数据源要求为整数型，如果你的字段值为小数类型的话，比如0.5，绑定字段的时候乘以100，改成50，这里的%是控件本身会显示的，不需要设置displayformat）。

ProgressBarControl使用起来简单快捷，但是如果想控制当小于某个值的时候用颜色预警，ProgressbarControl暂时还没有提供这个功能，所以只能自己利用GridView的CustomDrawCell的单元格绘制事件来实现此需求。

代码直接copy调用即可使用：

 1 /// <summary>
 2         /// 自定义进度条列
 3         /// </summary>
 4         /// <param name="view"></param>
 5         /// <param name="fieldName">列的字段名</param>
 6         /// <param name="warningValue"></param>
 7         /// <param name="lessColor"></param>
 8         /// <param name="greaterColor"></param>
 9         public static void CustomProgressBarColumn(DevExpress.XtraGrid.Views.Grid.GridView view, string fieldName, int warningValue=50, Brush lessColor = null, Brush greaterColor = null)
10         {
11             var col = view.Columns[fieldName];
12             if (col == null) return;
13             col.AppearanceCell.Options.UseTextOptions = true;
14             col.AppearanceCell.TextOptions.HAlignment = HorzAlignment.Center;
15             view.CustomDrawCell += (s, e) =>
16             {
17                 if (e.Column.FieldName == fieldName)
18                 {
19                     DrawProgressBar(e,warningValue,lessColor,greaterColor);
20                     e.Handled = true;
21                     DrawEditor(e);
22                 }
23             };
24         }
25        static void DrawProgressBar(DevExpress.XtraGrid.Views.Base.RowCellCustomDrawEventArgs e, int warningValue = 50, Brush lessColor = null, Brush greaterColor = null)
26         {
27             decimal percent = e.CellValue == null ? 0m : (decimal)e.CellValue;
28             int width = (int)(percent * e.Bounds.Width);
29             Rectangle rect = new Rectangle(e.Bounds.X, e.Bounds.Y, width, e.Bounds.Height);
30  
31             Brush b = Brushes.Green;
32             if (greaterColor != null)
33             {
34                 b = greaterColor;
35             }
36             if (percent * 100 < warningValue)
37             {
38                 if (lessColor == null)
39                 {
40                     b = Brushes.Red;
41                 }
42                 else
43                 {
44                     b = lessColor;
45                 }
46             }
47             e.Graphics.FillRectangle(b, rect);
48         }
49        static void DrawEditor(DevExpress.XtraGrid.Views.Base.RowCellCustomDrawEventArgs e)
50         {
51             GridCellInfo cell = e.Cell as GridCellInfo;
52             Point offset = cell.CellValueRect.Location;
53             BaseEditPainter pb = cell.ViewInfo.Painter as BaseEditPainter;
54             AppearanceObject style = cell.ViewInfo.PaintAppearance;
55             if (!offset.IsEmpty)
56                 cell.ViewInfo.Offset(offset.X, offset.Y);
57             try
58             {
59                 pb.Draw(new ControlGraphicsInfoArgs(cell.ViewInfo, e.Cache, cell.Bounds));
60             }
61             finally
62             {
63                 if (!offset.IsEmpty)
64                 {
65                     cell.ViewInfo.Offset(-offset.X, -offset.Y);
66                 }
67             }
68         }

调用代码示例如下（绑定的数据源字段值为小于1的小数值，如：0.33，设置列的DisplayFormat属性）：

1 gridView1.Columns["col11"].DisplayFormat.FormatType = FormatType.Numeric;
2 gridView1.Columns["col11"].DisplayFormat.FormatString = "p0";
3 CustomProgressBarColumn(gridView1, "col11", 50, Brushes.IndianRed, Brushes.DodgerBlue);

原文链接：https://blog.csdn.net/u012097590/article/details/93210486