Question

好，这是情况。我希望在ArcMap10.5上正确运行自定义的arcobjects vb.net扩展。在附件查看器中加载节点时，一旦调用Private Sub LoadNodes（），我将收到以下错误消息。

System.TypeLoadException：从COM对象扩展的类型应覆盖由基本COM类实现的接口的所有方法。

如果我从LoadNodes（）中删除这些行，则不会得到System.TypeLoadException：并且该程序通过LoadNodes（）运行，但是由于缺少附件表而明显失败了。

        ' Get relAttachments table and set selection table for it
        Dim relAttach As ESRI.ArcGIS.Carto.StandaloneTable = New cAttachStandAloneTable(mFWS.OpenTable(modDBNaming.GetQualifiedTableName("RelAttachments", mFWS)), "FCName")
        mRelAttachSel = relAttach

某种程度上，此问题与较新的环境有关，因为在旧环境中不会发生此问题。

当前环境： Visual Studio 13 .net Framework 4.5 ArcMap和Arcobjects 10.5（10.4存在相同问题）

旧环境： Visual Studio 8 .net Framework 3.5 ArcMap和ArcAobjects 10.2.2及更低版本

Private Sub LoadNodes()
    Try
        lblStatus.Text = "Populating the tree view with the database layers"
        Me.Cursor = Windows.Forms.Cursors.AppStarting

        ' Get relAttachments table and set selection table for it
        Dim relAttach As ESRI.ArcGIS.Carto.StandaloneTable = New cAttachStandAloneTable(mFWS.OpenTable(modDBNaming.GetQualifiedTableName("RelAttachments", mFWS)), "FCName")
        mRelAttachSel = relAttach

        ' Load relAttachments into dataset datatable
        PopulateRelAttachmentsTable(relAttach.Table)
        Dim relAttachDV As DataView = New DataView(mDataset.Tables("relAttachments"))

        ' Clear out reachnodes hashtable
        mReachNodes.Clear()

        ' Run through any selected features and store in table
        If mStandAlone = False Then
            PopulateSelectionTable()
        End If
        Dim selDV As DataView = New DataView(mDataset.Tables("Selection"))

        ' Clear the tree
        tvStream.Nodes.Clear()

System.TypeLoadException：从COM对象扩展的类型应覆盖由基本COM类实现的接口的所有方法

0 个答案: