使用 table.select 筛选数据行

Question

我按照 [DataTable.Select 方法1 对 table 进行排序和排序。但是我得到了错误 "Syntax error: Missing operand after 'Number' operator." 我在网上搜索过，但仍然无法找出问题所在。有人会告诉我如何解决它。提前致谢。

这是我的代码：

    Dim Table As DataTable = New DataTable
    Table.Columns.Add("Week Number", GetType(Integer))
    Table.Columns.Add("Date", GetType(Date))

    Dim newRow1 As DataRow = Table.NewRow()
    newRow1("Week Number") = 52
    newRow1("Date") = "1979, 12, 31"
    Table.Rows.Add(newRow1)

    Dim newRow2 As DataRow = Table.NewRow()
    newRow2("Week Number") = 1
    newRow2("Date") = "1980, 1, 3"
    Table.Rows.Add(newRow2)

    Dim expression As String = "Week Number =1"
    Dim sortOrder As String = "Date ASC"
    Dim foundRows As DataRow()
    foundRows = Table.Select(expression, sortOrder)

2

Answer 1

如果列名包含 space 那么您需要将整个名称括在方括号内以避免混淆解析器

Dim expression As String = "[Week Number] =1"
Dim sortOrder As String = "Date ASC"
Dim foundRows As DataRow()
foundRows = Table.Select(expression, sortOrder)

使用 table.select 筛选数据行

Filter data row using table.select

vb.net

datarow