手工编码填充数据
前面介绍了用Filler进行数据填充，Filler的设置很丰富，使用比较灵活。
不过填充数据并非一定要Filler，我们也可以手工编码填充。
例如需要从表A中，将金额大于100的记录，复制到表B中，假定两个表的结构一样：
For Each
dr1
As DataRow
In DataTables("表A").Select("[金额]
> 100")
Dim dr2
As
DataRow =
DataTables("表B").AddNew()
For
Each dc
As
DataCol
in
DataTables("表A").DataCols
dr2(dc.Name) = dr1(dc.name)
Next
Next
如果表A和表B的结构不同，或者只需填充部分列，就需要定义数据来源列和数据接收列，例如：
Dim
Cols1()
As String
= {"来源列一","来源列二","来源列三"}
Dim Cols2() As
String
= {"接收列一","接收列二","接收列三"}
For Each dr1 As
DataRow
In DataTables("表A").Select("[金额]
> 100")
Dim dr2
As DataRow
= DataTables("表B").AddNew()
For i
As Integer
= 0
To Cols1.Length
-1
dr2(Cols2(i))
= dr1(Cols1(i))
Next
Next
如果要排除重复值，可以用GetValues获得不重复的值，然后再填充：
Dim
Vals
As List(of
String())
Vals =
DataTables("来源表").GetValues("产品|客户")
For i
As Integer
= 0
To Vals.Count
- 1
Dim dr
As DataRow
= DataTables("接收表").AddNew()
dr("产品")
= Vals(i)(0)
dr("客户")
= Vals(i)(1)
Next
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