vb.net - 如何用List(Of t)填充DataTable或将List(Of t)转换为DataTable？

Question

我已经阅读了很多有关该主题的文章；其中最近一次是.NET - Convert Generic Collection to Data Table。不幸的是，一切都无济于事。

我有一个通用的结构集合:

Private Structure MyStruct
Dim sState as String
Dim lValue as Long
Dim iLayer as Integer
End Structure

Dim LOStates As New List(Of MyStruct)

我需要用此结构列表填充DataTable，但不知道如何执行此操作。我在Visual Studio 2008中使用vb.net。

任何见解将不胜感激

Answer 1

您链接的代码假定成员被声明为属性。您没有声明属性。您可以使其与反射一起使用:

Imports System.Reflection
...

      Public Shared Function ConvertToDataTable(Of T)(ByVal list As IList(Of T)) As DataTable
        Dim table As New DataTable()
        Dim fields() As FieldInfo = GetType(T).GetFields()
        For Each field As FieldInfo In fields
          table.Columns.Add(field.Name, field.FieldType)
        Next
        For Each item As T In list
          Dim row As DataRow = table.NewRow()
          For Each field As FieldInfo In fields
            row(field.Name) = field.GetValue(item)
          Next
          table.Rows.Add(row)
        Next
        Return table
      End Function