我正在尝试IEdmEnumeratorVariable5::SetVar根据用户输入到 Windows 窗体中来更新一些文件卡变量。我的代码执行，没有错误消息，文件被签出并重新签入，并在历史记录中添加了适当的注释；但是卡上的变量没有更新。
我通过在运行时单步执行代码来验证所有变量都填充了正确的（如预期的）数据。这些SetVar程序都顺利进行，但数据卡上的变量不会改变值 - 即使手动刷新文件夹视图也没有效果。
下面是我的代码。
这是一个加载项应用程序，使用 VS Community 2015 在 VB 中编写为类库项目，目标框架为 .NET 4.0。
努力使这个问题更简洁；下面我只包含了执行设置变量工作的代码片段，然后我还包含了更多代码，以便您可以在需要时获得整个画面。
只是冰山一角 ：
这是执行设置变量工作的代码：
Dim UserManager As IEdmUserMgr5 = .SourceVault
Dim User As IEdmUser5 = UserManager.GetLoggedInUser
CardComment = UserComment & CardComment
CardDate = Today().ToString("yyMMdd", Globalization.CultureInfo.InvariantCulture)
CardBy = User.Name
CardDisposition = UserDisposition
CardVariables.SetVar(DispositionVariable, "@", CardDisposition)
CardVariables.SetVar(CommentVariable, "@", CardComment)
CardVariables.SetVar(ByVariable, "@", CardBy)
CardVariables.SetVar(DateVariable, "@", CardDate)
CardVariables.Flush()
更广泛的笔划：
类模块级变量：
Private Structure CommandInfo
Dim SourceVault As IEdmVault11
Dim SourceCommand As EdmCmd
Dim SourceSelection As System.Array
Dim TargetTemplate As System.String
Dim VerifiedPaths As List(Of String)
End Structure
Private ReceivedCommand As CommandInfo
OnCmd 过程（调用者）：
Public Sub OnCmd(ByRef poCmd As EdmCmd,
ByRef ppoData As System.Array) Implements IEdmAddIn5.OnCmd
Dim CommandToRun As MenuCommand
Try
With ReceivedCommand
.SourceVault = poCmd.mpoVault
.SourceCommand = poCmd
.SourceSelection = ppoData
'Get the command structure for the command ID
Select Case poCmd.meCmdType
Case EdmCmdType.EdmCmd_Menu
CommandToRun = AvailableCommands(.SourceCommand.mlCmdID)
Case EdmCmdType.EdmCmd_CardButton
Select Case True
Case poCmd.mbsComment.ToString.ToUpper.Contains("DISPOSITION")
DispositionRequest()
Case Else : Exit Sub
End Select
Case Else : Exit Sub
End Select
'...... (End Try, End Sub, Etc.)
DispositionRequest 过程（被调用者）：
Private Sub DispositionRequest()
Dim UserDisposition As String
Using Disposition As New DispositionForm
With Disposition
If Not .ShowDialog() = System.Windows.Forms.DialogResult.OK Then Exit Sub
Select Case True
Case .Approve.Checked
UserDisposition = "Approved"
Case .Reject.Checked
UserDisposition = "Rejected"
Case Else : Exit Sub
End Select
End With
End Using
Dim UserComment As String
Using Explanation As New DispositionExplanation
With Explanation
If Not .ShowDialog() = System.Windows.Forms.DialogResult.OK Then Exit Sub
If .ListView1.Items.Count > 0 Then
'do some stuff not relevant to this question...
End If
UserComment = .Comments.Text
End With
End Using
'This next procedure just gets a list of paths from ReceivedCommand.SourceSelection - which is just the ppoData argument from the OnCmd procedure - see code block above!
Dim RequestPaths As List(Of String) = GetSelectedFilePaths()
For Each Path As String In RequestPaths
With ReceivedCommand
Dim RequestFile As IEdmFile5 = .SourceVault.GetFileFromPath(Path)
Dim ParentFolder As IEdmFolder6 = .SourceVault.GetFolderFromPath(System.IO.Path.GetDirectoryName(Path))
Dim UnlockLater As Boolean = False
If Not RequestFile.IsLocked Then
UnlockLater = True
RequestFile.LockFile(ParentFolder.ID, .SourceCommand.mlParentWnd, CInt(EdmLockFlag.EdmLock_Simple))
End If
Dim CardVariables As IEdmEnumeratorVariable5 = RequestFile.GetEnumeratorVariable
'We allow users to re-disposition a request so we want to keep any previous disposition information so it is not lost
Dim CardComment As String = String.Empty
Dim CardBy As String = String.Empty
Dim CardDate As String = String.Empty
Dim CardDisposition As String = String.Empty
Dim Success As Boolean
Const CommentVariable As String = "DispComm"
Const ByVariable As String = "DisposedBy"
Const DateVariable As String = "DisposedDate"
Const DispositionVariable As String = "Disposition"
Success = CardVariables.GetVar(DispositionVariable, "@", CardDisposition)
If Success Then
Success = CardVariables.GetVar(CommentVariable, "@", CardComment)
If Success Then Success = CardVariables.GetVar(ByVariable, "@", CardBy)
If Success Then Success = CardVariables.GetVar(DateVariable, "@", CardDate)
If Success Then CardComment = "Previously dispositioned as: """ & CardDisposition & """ by: " & CardBy & " on: " & CardDate & vbNewLine &
"---------Previous disposition explanation---------" & vbNewLine & CardComment
End If
Dim UserManager As IEdmUserMgr5 = .SourceVault
Dim User As IEdmUser5 = UserManager.GetLoggedInUser
CardComment = UserComment & CardComment
CardDate = Today().ToString("yyMMdd", Globalization.CultureInfo.InvariantCulture)
CardBy = User.Name
CardDisposition = UserDisposition
CardVariables.SetVar(DispositionVariable, "@", CardDisposition)
CardVariables.SetVar(CommentVariable, "@", CardComment)
CardVariables.SetVar(ByVariable, "@", CardBy)
CardVariables.SetVar(DateVariable, "@", CardDate)
CardVariables.Flush()
If UnlockLater Then RequestFile.UnlockFile(lParentWnd:= .SourceCommand.mlParentWnd,
bsComment:="Dispositioned as " & CardDisposition,
lEdmUnlockFlags:=0)
.SourceVault.RefreshFolder(ParentFolder.LocalPath)
End With
Next
End Sub