FileCodeModel2.CodeElementFromPoint(TextPoint, vsCMElement) Method

Reference

Definition

Namespace:: EnvDTE80

Assembly:: EnvDTE80.dll

Assembly:: Microsoft.VisualStudio.Interop.dll

Package:: Microsoft.VisualStudio.Interop v17.11.40262

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Returns a code element at a specific location in a source file.

public:
 EnvDTE::CodeElement ^ CodeElementFromPoint(EnvDTE::TextPoint ^ Point, EnvDTE::vsCMElement Scope);

public:
 EnvDTE::CodeElement ^ CodeElementFromPoint(EnvDTE::TextPoint ^ Point, EnvDTE::vsCMElement Scope);

EnvDTE::CodeElement CodeElementFromPoint(EnvDTE::TextPoint const & Point, EnvDTE::vsCMElement Scope);

[System.Runtime.InteropServices.DispId(5)]
public EnvDTE.CodeElement CodeElementFromPoint (EnvDTE.TextPoint Point, EnvDTE.vsCMElement Scope);

[<System.Runtime.InteropServices.DispId(5)>]
abstract member CodeElementFromPoint : EnvDTE.TextPoint * EnvDTE.vsCMElement -> EnvDTE.CodeElement

Public Function CodeElementFromPoint (Point As TextPoint, Scope As vsCMElement) As CodeElement

Parameters

Point: TextPoint

Required. A TextPoint object representing the editor location for which you want a code element.

Scope: vsCMElement

Required. A vsCMElement value representing the code element of the specified type that contains the editor location.

Returns

CodeElement

A CodeElement object.

Implements

CodeElementFromPoint(TextPoint, vsCMElement)

Attributes: DispIdAttribute

Examples

Sub CodeElementFromPointExample(ByVal dte As DTE2)  

    ' Before running this example, open a code document from a project  
    ' and place the insertion point anywhere inside the source code.  
    Dim sel As TextSelection = _  
        CType(dte.ActiveDocument.Selection, TextSelection)  
    Dim pnt As TextPoint = CType(sel.ActivePoint, TextPoint)  

    ' Discover every code element containing the insertion point.  
    Dim fcm As FileCodeModel = _  
        dte.ActiveDocument.ProjectItem.FileCodeModel  
    Dim elems As String  
    Dim elem As CodeElement  
    Dim scope As vsCMElement  
    For Each scope In [Enum].GetValues(scope.GetType())  
        Try  
            elem = fcm.CodeElementFromPoint(pnt, scope)  
            elems &= elem.Name & " (" & scope.ToString() & ")" & vbCrLf  
       Catch ex As Exception  
            ‘don’t do anything -  
            ‘this is expected when no code elements are in scope  
       End Try  
    Next  
    MsgBox("The following elements contain the insertion point:" _  
            & vbCrLf & vbCrLf & elems)  
End Sub

public void CodeElementFromPointExample(DTE2 dte)  
{  
    // Before running this example, open a code document from a project  
    // and place the insertion point anywhere inside the source code.  
    TextSelection sel =   
        (TextSelection)dte.ActiveDocument.Selection;  
    TextPoint pnt = (TextPoint)sel.ActivePoint;  
    // Discover every code element containing the insertion point.  
    FileCodeModel fcm =   
    dte.ActiveDocument.ProjectItem.FileCodeModel;  
    string elems = "";  
    vsCMElement scopes = 0;  
    foreach (vsCMElement scope in Enum.GetValues(scopes.GetType()))  
    {  
        try  
        {  
            CodeElement elem = fcm.CodeElementFromPoint(pnt, scope);  
            elems += elem.Name + " (" + scope.ToString() + ")\n";  
        }  
        catch (COMException ex)  
        {  
            //don’t do anything – this is expected if there is   
            //no code element in the scope  
        }  
    }  
    MessageBox.Show(  
        "The following elements contain the insertion point:\n\n" +   
        elems);  
}

Remarks

CodeElementFromPoint returns the code element associated with the TextPoint based on the specified scope or granularity of containment. If no code element of the specified type contains the editor location, then CodeElementFromPoint fails.

Applies to

通过