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！
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