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我正在学习Visual Studio扩展性。 这从MSDN代码创建一个包含有一个班的一个项目一个新的C＃解决方案：以编程方式将using指令添加到类
EnvDTE.DTE dte = this.GetService(typeof(Microsoft.VisualStudio.Shell.Interop.SDTE)) as EnvDTE.DTE;
EnvDTE80.Solution2 solution = (EnvDTE80.Solution2)dte.Solution;
try {
solution.Create(@"F:\Dev\Visual Studio 2013\Packages\Spikes\VSPNewSolution\Test\MySolution", "MySolution");
string templatePath = solution.GetProjectTemplate("ConsoleApplication.zip", "CSharp");
string projectPath = @"F:\Dev\Visual Studio 2013\Packages\Spikes\VSPNewSolution\\Test\MySolution\MyProject";
/*
* from MZTools site :
* Once you have the template file name, you can add a project to the solution using the EnvDTE80.Solution.AddFromTemplate method.
* Note: this method returns null (Nothing) rather than the EnvDTE.Project created,
* so you may need to locate the created project in the Solution.Projects collection.
* See PRB: Solution.AddXXX and ProjectItems.AddXXX methods return Nothing (null).
*/
EnvDTE.Project project = solution.AddFromTemplate(templatePath, projectPath, "MyProject", false);
EnvDTE.ProjectItem projectItem;
String itemPath;
// Point to the first project
project = solution.Projects.Item(1); // try also "MyProject"
VSLangProj.VSProject vsProject = (VSLangProj.VSProject)project.Object;
vsProject.References.Add("NUnit.Framework");
// Retrieve the path to the class template.
itemPath = solution.GetProjectItemTemplate("Class.zip", "CSharp");
//Create a new project item based on the template, in this case, a Class.
projectItem = project.ProjectItems.AddFromTemplate(itemPath, "MyClass.cs");
}
catch (Exception ex) {
System.Windows.Forms.MessageBox.Show("ERROR: " + ex.Message);
}
我设法添加一个参考使用VSLangProjMyProject的。
到目前为止，这么好。
生成的类是：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace MyProject
{
class MyClass
{
}
}
我很多googleing后没发现什么是类中的代码添加using指令 的方式（使用NUnit.Framework ;在这种情况下）。
简单的方法是编写直接操作类文档的行。
有没有办法使用Visual Studio Extensibility以编程方式执行它？
UPDATE
一些尝试后得到CodeClass对象为创建的类， 我试过张贴在Finding a ProjectItem by type name via DTE 与变化不大的代码。 下面是更新后的代码：
EnvDTE.DTE dte = this.GetService(typeof(Microsoft.VisualStudio.Shell.Interop.SDTE)) as EnvDTE.DTE;
EnvDTE80.Solution2 solution = (EnvDTE80.Solution2)dte.Solution;
try {
string solutionPath = @"F:\Dev\Visual Studio 2013\Packages\Spikes\VSPNewSolution\Test\MySolution";
solution.Create(solutionPath, "MySolution");
string templatePath = solution.GetProjectTemplate("ConsoleApplication.zip", "CSharp");
string projectPath = @"F:\Dev\Visual Studio 2013\Packages\Spikes\VSPNewSolution\\Test\MySolution\MyProject";
EnvDTE.Project project = solution.AddFromTemplate(templatePath, projectPath, "MyProject", false);
EnvDTE.ProjectItem projectItem;
String itemPath;
foreach (EnvDTE.Project p in solution.Projects) {
if (p.Name == "MyProject") {
project = p;
break;
}
}
VSLangProj.VSProject vsProject = (VSLangProj.VSProject)project.Object;
vsProject.References.Add("NUnit.Framework");
itemPath = solution.GetProjectItemTemplate("Class.zip", "CSharp");
projectItem = project.ProjectItems.AddFromTemplate(itemPath, "MyClass.cs");
// I decided to save both, just in case
solution.SaveAs(solutionPath + @"\MySolution.sln");
project.Save();
EnvDTE.CodeClass codeClass = FindClass(project, "MyClass.cs");
// Display the source code for the class (from MSDN).
if (codeClass != null) {
EnvDTE.TextPoint start = codeClass.GetStartPoint(EnvDTE.vsCMPart.vsCMPartWhole);
EnvDTE.TextPoint finish = codeClass.GetEndPoint(EnvDTE.vsCMPart.vsCMPartWhole);
string src = start.CreateEditPoint().GetText(finish);
System.Windows.Forms.MessageBox.Show(src, codeClass.FullName + "Source");
}
}
catch (Exception ex) {
System.Windows.Forms.MessageBox.Show("ERROR: " + ex.Message);
}
}
private CodeClass FindClass(Project project, string className) {
return FindClass(project.CodeModel.CodeElements, className);
}
private CodeClass FindClass(CodeElements elements, string className) {
foreach (CodeElement element in elements) {
if (element is CodeNamespace || element is CodeClass) {
CodeClass c = element as CodeClass;
if (c != null && c.Access == vsCMAccess.vsCMAccessPublic) {
if (c.FullName == className)
return c;
CodeClass subClass = FindClass(c.Members, className);
if (subClass != null)
return subClass;
}
CodeNamespace ns = element as CodeNamespace;
if (ns != null) {
CodeClass cc = FindClass(ns.Members, className);
if (cc != null)
return cc;
}
}
}
return null;
}
嗯，事实证明，的findClass始终返回null，因为project.CodeModel.CodeElements.Count为零。 Duh？
更新2
好了，请不要打me.The原代码必须在projectPath可变盈余反斜杠。
这导致project.CodeModel.CodeElements.Count为零。
另外，FindClass要求类别姓名没有扩展名和搜索public只有类。
我纠正了代码，但仍然得到了null（我自己的错，我猜：我一定错过了什么）。
无论如何，FindClass搜索全部项目CodeElements中给定的类，包括在 项目引用的类。
对我而言，这是一种矫枉过正的情况，因为我正在搜索该项目的本地类。
所以我写了一个功能，就是这样做。
这就是：
public static CodeClass FindClassInProjectItems(Project project, string className) {
CodeClass result = null;
foreach (EnvDTE.ProjectItem pi in project.ProjectItems) {
if (pi.Name == className + ".cs") {
if (pi.FileCodeModel != null) {
foreach (EnvDTE.CodeElement ce in pi.FileCodeModel.CodeElements) {
if (ce is EnvDTE.CodeClass) {
result = ce as EnvDTE.CodeClass;
break;
}
else if (ce is EnvDTE.CodeNamespace) {
CodeNamespace ns = ce as CodeNamespace;
if (ns.Name == project.Name) {
foreach (CodeElement sce in ns.Members) {
if (sce is CodeClass && sce.Name == className) {
result = sce as CodeClass;
break;
}
}
}
}
}
}
}
}
return result;
}
它的作品，所以我创建了一个静态ClassFinder类并添加功能。
下一步是检索完整的类源代码，包括using指令。
我发现了一个样品在MSDN here，这是关键代码：
// Display the source code for the class.
TextPoint start = cls.GetStartPoint(vsCMPart.vsCMPartWhole);
TextPoint finish = cls.GetEndPoint(vsCMPart.vsCMPartWhole);
string src = start.CreateEditPoint().GetText(finish);
实际上，第一行会抛出异常。
所以，我想vsCMPart枚举的所有成员：他们大多抛出一个异常，除了： vsCMPart.vsCMPartBody，vsCMPart.vsCMPartHeader，vsCMPart.vsCMPartNavigate和vsCMPart.vsCMPartWholeWithAttributes。
vsCMPart.vsCMPartHeader和vsCMPart.vsCMPartWholeWithAttributes返回相同的结果（至少在这种情况下），
而其他不返回整个代码。
要保持简短：
private void DisplayClassSource(CodeClass codeClass) {
EnvDTE.TextPoint start = codeClass.GetStartPoint(vsCMPart.vsCMPartHeader);
EnvDTE.TextPoint finish = codeClass.GetEndPoint();
string source = start.CreateEditPoint().GetText(finish);
System.Windows.Forms.MessageBox.Show(source, codeClass.FullName + "Class source");
}
private void DisplayNamespaceSource(CodeNamespace codeNamespace) {
EnvDTE.TextPoint start = codeNamespace.GetStartPoint(EnvDTE.vsCMPart.vsCMPartWholeWithAttributes);
EnvDTE.TextPoint finish = codeNamespace.GetEndPoint();
string src = start.CreateEditPoint().GetText(finish);
System.Windows.Forms.MessageBox.Show(src, codeNamespace.FullName + "Namespace source");
}
如果我们想的源代码，因为它出现在IDE，包括使用指令，
我们必须使用classCode.ProjectItem对象：
private void DisplayClassFullSource(CodeClass codeClass) {
System.Text.StringBuilder sb = new System.Text.StringBuilder();
foreach (CodeElement ce in codeClass.ProjectItem.FileCodeModel.CodeElements) {
if (ce.Kind == vsCMElement.vsCMElementImportStmt) {
// this is a using directive
// ce.Name throws an exception here !
sb.AppendLine(GetImportCodeLines(ce));
}
else if (ce.Kind == vsCMElement.vsCMElementNamespace) {
sb.AppendLine();
sb.AppendLine(GetNamespaceCodeLines(ce));
}
}
System.Windows.Forms.MessageBox.Show(sb.ToString(), codeClass.FullName + "class source");
}
private static string GetImportCodeLines(CodeElement ce) {
TextPoint start = ce.GetStartPoint(vsCMPart.vsCMPartWholeWithAttributes);
TextPoint finish = ce.GetEndPoint(vsCMPart.vsCMPartWholeWithAttributes);
return start.CreateEditPoint().GetText(finish);
}
private string GetNamespaceCodeLines(CodeElement ce) {
EnvDTE.TextPoint start = ce.GetStartPoint(vsCMPart.vsCMPartWholeWithAttributes);
//EnvDTE.TextPoint finish = codeClass.GetEndPoint(EnvDTE.vsCMPart.vsCMPartWhole); // ERROR : the method or operation is not implemented
EnvDTE.TextPoint finish = ce.GetEndPoint();
return start.CreateEditPoint().GetText(finish);
}
现在我们非常接近问题的解决方案。 看到我的答案。 （对不起，如果这看起来像一本小说）