语言在VS2010扩展文本视图

Question

我是新来构建加载项适用于Visual Studio，但已设法建立一个VS2010 simpe工具，做一个小的文本操作在当前激活代码窗口。我得，我需要知道当前文本视图的语言（VB.Net，C＃或其他）的点。

我使用下面的代码试图获得的文件名（所以我可以看看扩展名来确定的语言）：

IVsTextManager txtMgr = (IVsTextManager)GetService(typeof(SVsTextManager));
int mustHaveFocus = 1;//means true
txtMgr.GetActiveView(mustHaveFocus, null, out currentTextView);

userData = currentTextView as IVsUserData;
if (userData == null)// no text view 
{
    Console.WriteLine("No text view is currently open");
    return;
}

object pathAsObject;
Guid monikerGuid = typeof(IVsUserData).GUID;
userData.GetData(ref monikerGuid, out pathAsObject);
string docPath = (string)pathAsObject;

不幸的是pathAsObject总是返回null。是否有任何其他方式获得的文件名/语言？

Answer 1

看起来像这样工作：

// Get the current text view.
IVsTextManager txtMgr = (IVsTextManager)GetService(typeof(SVsTextManager));
int mustHaveFocus = 1;//means true
txtMgr.GetActiveView(mustHaveFocus, null, out currentTextView);

userData = currentTextView as IVsUserData;
if (userData == null)// no text view 
{
    Console.WriteLine("No text view is currently open");
    return;
}

// In the next 4 statments, I am trying to get access to the editor's view 
object holder;
Guid guidViewHost = DefGuidList.guidIWpfTextViewHost;
userData.GetData(ref guidViewHost, out holder);
viewHost = (IWpfTextViewHost)holder;

// Get a snapshot of the current editor's text.
allText = viewHost.TextView.TextSnapshot.GetText();

// Get the language for the current editor.
string language = viewHost.TextViewtextView.TextDataModel.ContentType.TypeName;

这将返回“基本”为VB.Net，而这正是我需要知道。