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如果我有类似的东西：

namespace SomeNameSpace
{
    #region Usings

    using System.Collections.Generic;
    using System.Security;

    #endregion

    /// <summary> Implements a dictionary with several keys.                               </summary>
    /// <typeparam name="Value"> What type of elements we will be storing in the dictionary</typeparam>
    public class MultiKeyDic<Value>
    {

         /// <summary>  a very long summary that can be
         /// collapsed and expanded. </summary>
         public int SomeInt {get;set;}


         public void someMethod()
         {

         }
    }
}

如何创建一个可以找到所有可扩展位置（节点）的宏。如果我想折叠所有节点，我将不得不按someMethod(), summary of SomeInt, class MultiKeyDic,summary of class MultiKeyDic和#region Usingsfinally的顺序折叠节点namespace。

我知道命令ctrl++M会O折叠所有内容，但我不想折叠所有内容。例如，我可能不想折叠评论。如果我折叠所有内容，然后展开扩展父节点的评论。

到目前为止，我已经创建了这个可以找到大多数节点的宏：

Sub VisitAllNodes()
    Dim i As Integer
    Dim fileCM As FileCodeModel
    Dim elts As EnvDTE.CodeElements
    Dim elt As EnvDTE.CodeElement

    fileCM = DTE.ActiveDocument.ProjectItem.FileCodeModel
    elts = fileCM.CodeElements
    For i = 1 To elts.Count
        elt = elts.Item(i)
        CollapseE(elt, elts, i)
    Next
End Sub

'' Helper to OutlineCode. Recursively outlines members of elt.
''
Sub CollapseE(ByVal elt As EnvDTE.CodeElement, ByVal elts As EnvDTE.CodeElements, ByVal loc As Integer)
    Dim epStart As EnvDTE.EditPoint
    Dim epEnd As EnvDTE.EditPoint

    epStart = elt.GetStartPoint(vsCMPart.vsCMPartWholeWithAttributes).CreateEditPoint()
    epEnd = elt.GetEndPoint(vsCMPart.vsCMPartWholeWithAttributes).CreateEditPoint() ' Copy it because we move it later.
    epStart.EndOfLine()
    If ((elt.IsCodeType()) And (elt.Kind <> EnvDTE.vsCMElement.vsCMElementDelegate)) Then
        Dim i As Integer
        Dim mems As EnvDTE.CodeElements

        mems = elt.Members
        For i = 1 To mems.Count

            Dim temp As EnvDTE.CodeElement = mems.Item(i)
            Dim t As String = [Enum].GetName(GetType(EnvDTE.vsCMElement), temp.Kind)
            MsgBox("Found member (" & t & ") at line# " & temp.StartPoint.Line)

            CollapseE(mems.Item(i), mems, i)
        Next
    ElseIf (elt.Kind = EnvDTE.vsCMElement.vsCMElementNamespace) Then
        Dim i As Integer
        Dim mems As EnvDTE.CodeElements

        mems = elt.Members
        For i = 1 To mems.Count

            Dim temp As EnvDTE.CodeElement = mems.Item(i)
            Dim t As String = [Enum].GetName(GetType(EnvDTE.vsCMElement), temp.Kind)
            MsgBox("Found member (" & t & ") at line# " & temp.StartPoint.Line)

            CollapseE(mems.Item(i), mems, i)
        Next
    End If

    'Return
    ' collapse the element

    If (epStart.LessThan(epEnd)) Then
        loc = loc + 1
        If (loc <= elts.Count) Then
            epEnd.MoveToPoint(elts.Item(loc).GetStartPoint(vsCMPart.vsCMPartHeader))
            epEnd.LineUp()
            epEnd.EndOfLine()
        End If
        epStart.OutlineSection(epEnd)
    End If
End Sub

它看起来比实际情况更复杂。在任何文档上运行它，它将显示所有属性、类、枚举等，但由于某种原因，它找不到注释或区域。

4

1 回答 1

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第一个函数IncludeMember用于确定要排除的成员类型。例如在这个例子中我不折叠命名空间和使用指令：

' filter some mebers. for example using statemets cannot be collapsed so exclude them. 
    Function IncludeMember(ByVal member As EnvDTE.CodeElement)

        If member.Kind = vsCMElement.vsCMElementIDLImport Then
            Return False
        ElseIf member.Kind = vsCMElement.vsCMElementNamespace Then
            Return False  ' I do not want to colapse enums
        End If

        Return True

    End Function

    Sub CollapseNodes()

        ' activate working window
        DTE.Windows.Item(DTE.ActiveDocument.Name).Activate()

        ' expand everything to start

        Try
            DTE.ExecuteCommand("Edit.StopOutlining")
        Catch
        End Try

        Try
            DTE.ExecuteCommand("Edit.StartAutomaticOutlining")
        Catch
        End Try


        ' get text of document and replace all new lines with \r\n
        Dim objTextDoc As TextDocument
        Dim objEditPt As EnvDTE.EditPoint
        Dim text As String
        ' Get a handle to the new document and create an EditPoint.
        objTextDoc = DTE.ActiveDocument.Object("TextDocument")
        objEditPt = objTextDoc.StartPoint.CreateEditPoint
        ' Get all Text of active document
        text = objEditPt.GetText(objTextDoc.EndPoint)
        text = System.Text.RegularExpressions.Regex.Replace( _
                        text, _
                        "(\r\n?|\n\r?)", ChrW(13) & ChrW(10) _
                    )

        ' add new line to text so that lines of visual studio match with index of array
        Dim lines As String() = System.Text.RegularExpressions.Regex.Split(vbCrLf & text, vbCrLf)

        ' list where whe will place all colapsable items
        Dim targetLines As New System.Collections.Generic.List(Of Integer)

        ' regex that we will use to check if a line contains a #region
        Dim reg As New System.Text.RegularExpressions.Regex(" *#region( |$)")

        Dim i As Integer
        For i = 1 To lines.Length - 1

            If reg.Match(lines(i)).Success Then
                targetLines.Add(i)
            End If

        Next


        Dim fileCM As FileCodeModel
        Dim elts As EnvDTE.CodeElements
        Dim elt As EnvDTE.CodeElement

        Dim projectItem = DTE.ActiveDocument.ProjectItem

        Dim temp = projectItem.Collection.Count

        Dim b = DirectCast(DirectCast(projectItem.Document, EnvDTE.Document).ActiveWindow, EnvDTE.Window).ContextAttributes

        fileCM = projectItem.FileCodeModel
        elts = fileCM.CodeElements
        For i = 1 To elts.Count
            elt = elts.Item(i)
            CollapseE(elt, elts, i, targetLines)
        Next

        ' now that we have the lines that we will plan to collapse sort them. it is important to go in order
        targetLines.Sort()

        ActivateWorkingWindow()

        ' go in reverse order so that we can collapse nested regions
        For i = targetLines.Count - 1 To 0 Step -1


            DTE.ExecuteCommand("Edit.Goto", targetLines(i))

            DTE.ExecuteCommand("Edit.ToggleOutliningExpansion")

        Next


    End Sub

    '' Helper to OutlineCode. Recursively outlines members of elt.
    ''
    Sub CollapseE(ByVal elt As EnvDTE.CodeElement, ByVal elts As EnvDTE.CodeElements, ByVal loc As Integer, ByRef targetLines As System.Collections.Generic.List(Of Integer))
        Dim epStart As EnvDTE.EditPoint
        Dim epEnd As EnvDTE.EditPoint

        epStart = elt.GetStartPoint(vsCMPart.vsCMPartWholeWithAttributes).CreateEditPoint()
        epEnd = elt.GetEndPoint(vsCMPart.vsCMPartWholeWithAttributes).CreateEditPoint() ' Copy it because we move it later.
        epStart.EndOfLine()
        If ((elt.IsCodeType()) And (elt.Kind <> EnvDTE.vsCMElement.vsCMElementDelegate) Or elt.Kind = EnvDTE.vsCMElement.vsCMElementNamespace) Then
            Dim i As Integer
            Dim mems As EnvDTE.CodeElements

            mems = elt.Members
            For i = 1 To mems.Count

                CollapseE(mems.Item(i), mems, i, targetLines)

            Next

        End If


        If (epStart.LessThan(epEnd)) Then
            If IncludeMember(elt) Then
                targetLines.Add(epStart.Line)
            End If
        End If



    End Sub
于 2012-07-23T19:40:36.607 回答