近来项目用到了一个类似 WEB 控件 DataGrid 中自定义行或列的颜色的功能，然而应用却是在 WIN 的窗体下，实现起来无法使用类似 JavaScript 的脚本注册的功能来动态完成，十分着急，察看了 CSDN 的一些关于 WinForm 下的关于 DataGrid 的资料，看到这样的一篇介绍 DG 结构的美文，题目是《 ** Henry ** ** 手记 ** ** :WinForm Datagrid ** ** 结构剖析 ** 》，作者是 韩睿（ Latitude ） ，其中介绍了 WIN DG 的颜色的定义，但是主要是针对每一个 Cell 的。
我们需要的则是标记某一行的数据，用颜色突出显示，所以作了部分改动，现在把部分代码张贴出来供大家参考：
1． 基础类出自 韩睿 ：
URL: http://www.csdn.net/develop/read_article.asp?id=15686
Public Class DataGridColoredTextBoxColumn
Inherits DataGridTextBoxColumn
Public rowcollection As New Collection()
Public BackColor() As Color
Public ForeColor() As Color
Private Function GetText( ByVal Value As Object ) As String
If TypeOf (Value) Is System.DBNull Then
Return NullText
ElseIf Value Is Nothing Then
Return ""
Else
Return Value.ToString
End If
End Function
Protected Overloads Overrides Sub Paint( ByVal g As System.Drawing.Graphics, ByVal bounds As System.Drawing.Rectangle, _
ByVal source As System.Windows.Forms.CurrencyManager, _
ByVal rowNum As Integer , _
ByVal backBrush As System.Drawing.Brush, _
ByVal foreBrush As System.Drawing.Brush, _
ByVal alignToRight As Boolean )
Dim text As String
text = GetText(GetColumnValueAtRow(source, rowNum))
backBrush = New SolidBrush(TextBox.BackColor)
foreBrush = New SolidBrush(TextBox.ForeColor)
ReDim Preserve BackColor(rowcollection.Count)
ReDim Preserve ForeColor(rowcollection.Count)
Dim i As Integer = 1
Do While (i <= rowcollection.Count)
If rowNum = Val(rowcollection.Item(i)) Then
If Not BackColor(i - 1).IsEmpty Then
backBrush = New SolidBrush(BackColor(i - 1))
End If
If Not ForeColor(i - 1).IsEmpty Then
foreBrush = New SolidBrush(ForeColor(i - 1))
End If
End If
i += 1
Loop
MyBase .PaintText(g, bounds, text, backBrush, foreBrush, alignToRight)
End Sub
End Class
2. 关于行颜色定义的类：
Imports System.Windows.Forms
Namespace Truck_WEB
Public Class DrawDGClass
Public Class ReDrawDataDridControls : Inherits DataGridColoredTextBoxColumn
Public Sub DrawCorol( ByRef DG As DataGrid, Optional ByVal CurrentRowindex As Integer = 0)
'设置选中的行的颜色，默认是第一行选中。
Dim dt As DataTable
Dim ts As New DataGridTableStyle()
ts.AllowSorting = False
Dim aColumnTextColumn As DataGridColoredTextBoxColumn
dt = CType (DG.DataSource, DataTable)
ts.MappingName = CType (DG.DataSource, DataTable).TableName
DG.TableStyles.Clear()
Dim numCols As Integer
numCols = dt.Columns.Count
Dim i, j As Integer
i = 0
j = 0
Do While (i < numCols)
aColumnTextColumn = New DataGridColoredTextBoxColumn()
Dim rowindex As Integer = 0
For rowindex = 0 To dt.Rows.Count - 1
Dim StrSel As String
Dim MyForeCorol, MyBackCorol As Color
aColumnTextColumn.rowcollection.Add(rowindex)
If rowindex = CurrentRowindex Then
MyForeCorol = Color.White
MyBackCorol = Color.DarkSlateBlue
else
MyForeCorol = Color.DarkSlateBlue
MyBackCorol = Color.White
End If
ReDim Preserve aColumnTextColumn.ForeColor(aColumnTextColumn.rowcollection.Count)
ReDim Preserve aColumnTextColumn.BackColor(aColumnTextColumn.rowcollection.Count)
aColumnTextColumn.ForeColor(rowindex) = MyForeCorol
aColumnTextColumn.BackColor(rowindex) = MyBackCorol
Next
'要更改列头名，请改下句的HeaderText值
aColumnTextColumn.HeaderText = dt.Columns(i).ColumnName
aColumnTextColumn.MappingName = dt.Columns(i).ColumnName
ts.GridColumnStyles.Add(aColumnTextColumn)
i = (i + 1)
Loop
DG.TableStyles.Add(ts)
End Sub
End Class
End Class
End Namespace
以上是设定选中单行的颜色为反色，各位还可以借题发挥一下！例如设置颜色，等等。
在此向《 ** Henry ** ** 手记 ** ** :WinForm Datagrid ** ** 结构剖析 ** 》的作者 韩睿致谢！
以后我会尽量完善这个 DrawDG 的类，为大家提供方便！