vb.net - 如何使用 LINQ vb2010 访问数据值，我尝试了这段代码，但它失败了

Question

Imports System.Data.SqlClient


Public Class Form1
  Dim bd As New lDataContext

  Dim qqq = From bs In bd.FILEs
              Select bs.RETURN_DATE
              Take 1

 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    If qqq = Date.Today.Date Then
        TextBox1.Text = "yes"
    Else
        TextBox1.Text = "no"
    End If
 End Sub
End Class

Answer 1

你可以试试这个：

Dim qqq = (from bs in bd.FILEs select bs.RETURN_DATE).First()