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---- [求助]引用不同表数据、替换、合并字符串 (http://foxtable.com/bbs/dispbbs.asp?boardid=2&id=109753)
-- 发布时间：2017/11/18 17:20:00
-- [求助]引用不同表数据、替换、合并字符串
老师，如何在编辑表A的“危害因素”时，将表B危害因素的对应体检项目，去掉重复值合并到表A的体检项目中？表A 的体检项目是从表B中多选的。谢谢！
Dim str As String = e.DataRow("危害因素")
Dim pas() As String = str.Split("、")
For Each pa As String In pas
Dim s As String = ""
Dim n As Integer = pas.Length
For i As Integer = 0 To n - 1
Dim drs As List(of DataRow) = DataTables("表B").Select("危害因素 = \'" & pas(i) & "\'")
For Each dr As DataRow In drs
s = dr("体检项目") & "、" & s
Next
Next
e.DataRow("体检项目") = s
Next
不知道如何清除重复值
[此贴子已经被作者于2017/11/19 16:09:20编辑过]
-- 发布时间：2017/11/19 17:19:00
--
\'\'\'
Select Case e.DataCol.Name
Case "危害因素"
Dim str As String = e.DataRow("危害因素")
Dim pas() As String = str.Split("、")
For Each pa As String In pas
Dim ls As new List(of String)
Dim n As Integer = pas.Length
For i As Integer = 0 To n - 1
Dim drs As List(of DataRow) = DataTables("表B").Select("危害因素 = \'" & pas(i) & "\'")
For Each dr As DataRow In drs
If ls.Contains（dr("体检项目")) = False Then
ls.add(dr("体检项目"))
End If
Next
Next
e.DataRow("体检项目") = String.Join("、", ls.ToArray)
Next
End Select
-- 发布时间：2017/11/20 7:52:00
--
有点甜老师，最后的结果是要将 不同的dr("体检项目") 中的的相同的项目名称也就是相同的字符串 清除，只保留一个，合并到表A 的 e.DataRow("体检项目") 中，
上面的代码合并后没有清除重复项目也就是重复的字符串。麻烦了。谢谢！
-- 发布时间：2017/11/20 8:55:00
--
\'\'\'
Select Case e.DataCol.Name
Case "危害因素"
Dim str As String = e.DataRow("危害因素")
Dim pas() As String = str.Split("、")
Dim ls As new List(of String)
For Each pa As String In pas
Dim drs As List(of DataRow) = DataTables("表B").Select("危害因素 = \'" & pa & "\'")
For Each dr As DataRow In drs
For Each s As String In dr("体检项目").split("、")
If ls.Contains（s) = False Then
ls.add(s)
End If
Next
Next
Next
e.DataRow("体检项目") = String.Join("、", ls.ToArray)
End Select