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我正在學習Visual Studio擴展性。 這從MSDN代碼創建一個包含有一個班的一個項目一個新的C＃解決方案：以編程方式將using指令添加到類
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);
}
我設法添加一個參考使用VSLangProjMyProject的。
到目前爲止，這麼好。
生成的類是：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace MyProject
{
class MyClass
{
}
}
我很多googleing後沒發現什麼是類中的代碼添加using指令 的方式（使用NUnit.Framework ;在這種情況下）。
簡單的方法是編寫直接操作類文檔的行。
有沒有辦法使用Visual Studio Extensibility以編程方式執行它？
UPDATE
一些嘗試後得到CodeClass對象爲創建的類， 我試過張貼在Finding a ProjectItem by type name via DTE 與變化不大的代碼。 下面是更新後的代碼：
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，事實證明，的findClass始終返回null，因爲project.CodeModel.CodeElements.Count爲零。 Duh？
更新2
好了，請不要打me.The原代碼必須在projectPath可變盈餘反斜槓。
這導致project.CodeModel.CodeElements.Count爲零。
另外，FindClass要求類別姓名沒有擴展名和搜索public只有類。
我糾正了代碼，但仍然得到了null（我自己的錯，我猜：我一定錯過了什麼）。
無論如何，FindClass搜索全部項目CodeElements中給定的類，包括在 項目引用的類。
對我而言，這是一種矯枉過正的情況，因爲我正在搜索該項目的本地類。
所以我寫了一個功能，就是這樣做。
這就是：
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，所以我創建了一個靜態ClassFinder類並添加功能。
下一步是檢索完整的類源代碼，包括using指令。
我發現了一個樣品在MSDN here，這是關鍵代碼：
// 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);
實際上，第一行會拋出異常。
所以，我想vsCMPart枚舉的所有成員：他們大多拋出一個異常，除了： vsCMPart.vsCMPartBody，vsCMPart.vsCMPartHeader，vsCMPart.vsCMPartNavigate和vsCMPart.vsCMPartWholeWithAttributes。
vsCMPart.vsCMPartHeader和vsCMPart.vsCMPartWholeWithAttributes返回相同的結果（至少在這種情況下），
而其他不返回整個代碼。
要保持簡短：
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");
}
如果我們想的源代碼，因爲它出現在IDE，包括使用指令，
我們必須使用classCode.ProjectItem對象：
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);
}
現在我們非常接近問題的解決方案。 看到我的答案。 （對不起，如果這看起來像一本小說）