Visual Studio 扩展:如何获取调用上下文菜单的行?

问题描述

我想创建一个 VS 扩展，我需要知道调用菜单的行号.我找到了一个 VisualBasic 实现，其中的宏似乎 这样做，但我不知道如何在 C# 中启动它.目标是知道调用 ContextMenu 的行的确切编号，以便在其上放置一个占位符图标，就像一个断点一样.感谢有用的链接，因为我在这个主题上找不到太多.

I would like to create a VS extension in which I need to know the line number the menu was called on. I found a VisualBasic implementation with a macro that seems to do this, but I don't know how to start this in C#. The goal would be to know the exact number of the line the ContextMenu was called on to put a placeholder icon on it just like a break point. Useful links are appreciated since I couldn't find much on this topic.

推荐答案

您可以创建一个 VSIX 项目并在您的项目中添加一个 Command 项.然后在 MenuItemCallback() 方法中添加如下代码，获取代码行号.

You could create a VSIX project and add a Command item in your project. Then add following code in MenuItemCallback() method to get the code line number.

    private void MenuItemCallback(object sender, EventArgs e)
    {
        EnvDTE.DTE dte = (EnvDTE.DTE)this.ServiceProvider.GetService(typeof(EnvDTE.DTE));

        EnvDTE.TextSelection ts = dte.ActiveWindow.Selection as EnvDTE.TextSelection;
        if (ts == null)
            return;
        EnvDTE.CodeFunction func = ts.ActivePoint.CodeElement[vsCMElement.vsCMElementFunction]
                    as EnvDTE.CodeFunction;
        if (func == null)
            return;

        string message = dte.ActiveWindow.Document.FullName + System.Environment.NewLine +
          "Line " + ts.CurrentLine + System.Environment.NewLine +
          func.FullName;

        string title = "GetLineNo";

        VsShellUtilities.ShowMessageBox(
            this.ServiceProvider,
            message,
            title,
            OLEMSGICON.OLEMSGICON_INFO,
            OLEMSGBUTTON.OLEMSGBUTTON_OK,
            OLEMSGDEFBUTTON.OLEMSGDEFBUTTON_FIRST);
    }

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