Question

此webmethod从数据库中检索plist，firstaname，lastname，orgid，然后在2个不同的表中插入2行。第一个sql很好 - 第二个没有运行

<WebMethod()> _
Public Function Register(ByVal meetingid As String, ByVal myid As String, ByVal PartType As Integer, ByVal startDate As String) As String
    Dim connection As New SqlConnection(ConfigurationManager.ConnectionStrings("EPBconnection").ConnectionString)
    Dim sSQL As String
    Dim plistid As String = ""
    Dim LastName As String = ""
    Dim FirstName As String = ""
    Dim orgID As String = ""

    'get plistID
    sSQL = "select pl.PLIST_ID"
    sSQL = sSQL + " From PERSON_LIST pl"
    sSQL = sSQL + " Where MTG_ID = '" + meetingid + "'"
    Dim myCommand As New SqlCommand(sSQL, connection)
    connection.Open()
    Dim myReader As SqlDataReader = myCommand.ExecuteReader
    While myReader.Read()
        plistid = myReader("PLIST_ID").ToString()
    End While
    connection.Close()

    'get firstname, lastname, orgid
    sSQL = "SELECT p.LASTNAME, p.FIRSTNAME, p.ORGA_ID FROM PERSON p WHERE PERSON_ID = '" + myid + "'"
    myCommand = New SqlCommand(sSQL, connection)
    connection.Open()
    myReader = myCommand.ExecuteReader
    While myReader.Read()
        LastName = myReader("LASTNAME").ToString()
        FirstName = myReader("FIRSTNAME").ToString()
        orgID = myReader("ORGA_ID").ToString()
    End While
    connection.Close()

    Return "You are registered for this meeting"

End Function

当我删除以下内容时，它返回字符串，否则它不会（编译时没有错误）：

While myReader.Read()
    LastName = myReader("LASTNAME").ToString()
    FirstName = myReader("FIRSTNAME").ToString()
    orgID = myReader("ORGA_ID").ToString()
End While

问题似乎来自myReader.Read（）???我不明白为什么

Answer 1

 orgID = myReader("ORGA_ID").ToString()

您已将orgId定义为整数;

  Dim orgID As Integer

Answer 2

对不起每一个问题都是自己解决了一夜。仍然不知道问题是什么。 LOL

我的vb.net webmethod出了什么问题？

2 个答案: