主题：按钮代码问题求指点！！！！！！

Dim Result As DialogResult
Result = MessageBox.Show("确定导出?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question,MessageBoxDefaultButton.Button2)
Dim Cols1() As String = {"工作单位","县公司","姓名","性别","身份证号码","文化程度","鉴定等级","申报鉴定工种","鉴定批次","申报性质","备注","照片","是否合格","理论考否","考试性质"}
Dim Cols2() As String = {"工作单位","县公司","姓名","性别","身份证号码","文化程度","鉴定等级","申报鉴定工种","鉴定批次","申报性质","备注","照片","是否合格","理论考否","考试性质"}
For Each dr1 As DataRow In DataTables("审核合格表").Select("[考试性质] = '补考实操' and [考试性质] = '补考潜能' and [考试性质] = '补考两项'")
    Dim dr2 As DataRow = DataTables("实操潜能表").Find("身份证号码 = '" & dr1("身份证号码") & "'")
    If dr2 Is Nothing Then
        dr2 = DataTables("实操潜能表").AddNew
    End If
    For i As Integer = 0 To Cols1.Length -1
        dr2(Cols2(i)) = dr1(Cols1(i))
    Next
Next

这段代码错在哪？求帮助！

不报错，点击按钮只能实现“考试性质”＝‘补考实操’的人员全部填充过去，另外两种就过不去。

DataTables("审核合格表").Select("[考试性质] = '补考实操' or [考试性质] = '补考潜能' or [考试性质] = '补考两项'")

谢谢Bin版！我昨天也写了这样的格式代码，不过在单双引号方面没处理好。