VB.NET中关于DataGrid颜色的自定义

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