我有一些工具可以在.NET解决方案上执行更新，但是他们需要知道解决方案所在的目录。
我将这些工具添加为外部工具，它们出现在IDE工具菜单中，并提供$(SolutionDir)作为参数。这很好。
但是，我希望通过自定义顶级菜单（我为其创建了一个Visual Studio集成包项目）并通过解决方案节点上的上下文菜单（我为此用户）在IDE中更轻松地访问这些工具。创建了一个Visual Studio加载项项目）。我正在寻找一种方法来通过这些上下文获取当前的解决方案目录。
我尝试从VisualStudio.DTE对象获取解决方案信息：
EnvDTE.DTE dte = (EnvDTE.DTE)System.Runtime.InteropServices.Marshal.GetActiveObject("VisualStudio.DTE");
string solutionDir = System.IO.Path.GetDirectoryName(dte.Solution.FullName);
但是，这将返回add ins的解决方案目录，而不是当前的解决方案。
我尝试回复$(SolutionDir)并将其读回来：
System.Diagnostics.ProcessStartInfo procStartInfo = new System.Diagnostics.ProcessStartInfo("cmd", "echo $(SolutionDir)");
// The following commands are needed to redirect the standard output.
// This means that it will be redirected to the Process.StandardOutput StreamReader.
procStartInfo.RedirectStandardOutput = true;
procStartInfo.UseShellExecute = false;
// Do not create the black window.
procStartInfo.CreateNoWindow = true;
// Now we create a process, assign its ProcessStartInfo and start it
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo = procStartInfo;
proc.Start();
// Get the output into a string
string result = proc.StandardOutput.ReadToEnd();
但是，这返回了IDE的目录，而不是当前的解决方案。
我在解决方案节点CommandBar中没有看到任何相关信息。
或者，如果有一种方法可以以编程方式访问已定义的Visual Studio外部工具并启动它们（使用已定义的宏参数），那么这将起作用。
解决方案是什么？
答案 0 :(得分：18)
EnvDTE.DTE dte = （EnvDTE.DTE）System.Runtime.InteropServices.Marshal.GetActiveObject（ “VisualStudio.DTE”）; string solutionDir = System.IO.Path.GetDirectoryName（dte.Solution.FullName）;
但是，这会返回解决方案 add ins的目录，而不是 目前的解决方案。
您获取目录的方法很好。你得到VisualStudio.DTE对象的方式有什么不对。这段代码在哪里叫？我认为它在你的加载项中。您是否在Visual Studio中执行（调试）您的加载项，打开另一个Visual Studio实例来打开您的解决方案？所以你有两个Visual Studio实例。
GetActiveObject("VisualStudio.DTE")获取一个随机的Visual Studio实例。在您的情况下，它显然是带有加载项项目的Visual Studio，因为您可以获得加载项的路径。这是为了解释你问题的原因。
获取DTE的正确方法非常简单。实际上，您的加载项已经引用了运行它的DTE（即打开解决方案的DTE）。它存储在加载项连接类的全局变量_applicationObject中。当您的加载项在OnConnection事件处理程序中启动时设置。所以你只需要打电话：
string solutionDir = System.IO.Path.GetDirectoryName(_applicationObject.Solution.FullName);
答案 1 :(得分：6)
随着Peter朝着正确的方向前进，我设置了上下文菜单插件以启动带有解决方案目录的外部工具，并将结果输出到输出窗格。一些例子来自加入：
///--------------------------------------------------------------------------------
/// <summary>This method implements the OnConnection method of the IDTExtensibility2 interface. Receives notification that the Add-in is being loaded.</summary>
///
/// <param term='application'>Root object of the host application.</param>
/// <param term='connectMode'>Describes how the Add-in is being loaded.</param>
/// <param term='addInInst'>Object representing this Add-in.</param>
/// <seealso class='IDTExtensibility2' />
///--------------------------------------------------------------------------------
public void OnConnection(object application, ext_ConnectMode connectMode, object addInInst, ref Array custom)
{
_applicationObject = (DTE2)application;
_addInInstance = (AddIn)addInInst;
// Get the solution command bar
CommandBar solutionCommandBar = ((CommandBars)_applicationObject.CommandBars)["Solution"];
// Set up the main InCode
CommandBarPopup solutionPopup = (CommandBarPopup)solutionCommandBar.Controls.Add(MsoControlType.msoControlPopup, System.Reflection.Missing.Value, System.Reflection.Missing.Value, 1, true);
solutionPopup.Caption = "InCode";
// Add solution updater submenu
CommandBarControl solutionUpdaterControl = solutionPopup.Controls.Add(MsoControlType.msoControlButton, System.Reflection.Missing.Value, System.Reflection.Missing.Value, 1, true);
solutionUpdaterControl.Caption = "Update Solution";
updateSolutionMenuItemHandler = (CommandBarEvents)_applicationObject.Events.get_CommandBarEvents(solutionUpdaterControl);
updateSolutionMenuItemHandler.Click += new _dispCommandBarControlEvents_ClickEventHandler(updateSolution_Click);
}
// The event handlers for the solution submenu items
CommandBarEvents updateSolutionMenuItemHandler;
///--------------------------------------------------------------------------------
/// <summary>This property gets the solution updater output pane.</summary>
///--------------------------------------------------------------------------------
protected OutputWindowPane _solutionUpdaterPane = null;
protected OutputWindowPane SolutionUpdaterPane
{
get
{
if (_solutionUpdaterPane == null)
{
OutputWindow outputWindow = _applicationObject.ToolWindows.OutputWindow;
foreach (OutputWindowPane loopPane in outputWindow.OutputWindowPanes)
{
if (loopPane.Name == "Solution Updater")
{
_solutionUpdaterPane = loopPane;
return _solutionUpdaterPane;
}
}
_solutionUpdaterPane = outputWindow.OutputWindowPanes.Add("Solution Updater");
}
return _solutionUpdaterPane;
}
}
///--------------------------------------------------------------------------------
/// <summary>This method handles clicking on the Update Solution submenu.</summary>
///
/// <param term='inputCommandBarControl'>The control that is source of the click.</param>
/// <param term='handled'>Handled flag.</param>
/// <param term='cancelDefault'>Cancel default flag.</param>
///--------------------------------------------------------------------------------
protected void updateSolution_Click(object inputCommandBarControl, ref bool handled, ref bool cancelDefault)
{
try
{
// set up and execute solution updater thread
UpdateSolutionDelegate updateSolutionDelegate = UpdateSolution;
updateSolutionDelegate.BeginInvoke(UpdateSolutionCompleted, updateSolutionDelegate);
}
catch (System.Exception ex)
{
// put exception message in output pane
SolutionUpdaterPane.OutputString(ex.Message);
}
}
protected delegate void UpdateSolutionDelegate();
///--------------------------------------------------------------------------------
/// <summary>This method launches the solution updater to update the solution.</summary>
///--------------------------------------------------------------------------------
protected void UpdateSolution()
{
try
{
// set up solution updater process
string solutionDir = System.IO.Path.GetDirectoryName(_applicationObject.Solution.FullName);
System.Diagnostics.ProcessStartInfo procStartInfo = new System.Diagnostics.ProcessStartInfo(@"SolutionUpdater.exe", solutionDir);
procStartInfo.RedirectStandardOutput = true;
procStartInfo.UseShellExecute = false;
procStartInfo.CreateNoWindow = true;
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo = procStartInfo;
// execute the solution updater
proc.Start();
// put solution updater output to output pane
SolutionUpdaterPane.OutputString(proc.StandardOutput.ReadToEnd());
SolutionUpdaterPane.OutputString("Solution update complete.");
}
catch (System.Exception ex)
{
// put exception message in output pane
SolutionUpdaterPane.OutputString(ex.Message);
}
}
///--------------------------------------------------------------------------------
/// <summary>This method completing the update solution thread.</summary>
///
/// <param name="ar">IAsyncResult.</param>
///--------------------------------------------------------------------------------
protected void UpdateSolutionCompleted(IAsyncResult ar)
{
try
{
if (ar == null) throw new ArgumentNullException("ar");
UpdateSolutionDelegate updateSolutionDelegate = ar.AsyncState as UpdateSolutionDelegate;
Trace.Assert(updateSolutionDelegate != null, "Invalid object type");
updateSolutionDelegate.EndInvoke(ar);
}
catch (System.Exception ex)
{
// put exception message in output pane
SolutionUpdaterPane.OutputString(ex.Message);
}
}