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This article provides a sample to create a Visual Studio project from an add-in. More Information The project templates that Visual Studio shows in the New Project dialog are stored in the folder C:\Program Files (x86)\Microsoft Visual Studio <version>\Common7\IDE\ProjectTemplatesCache, where they are stored in folders that contain the programming language ("CSharp", "VisualBasic", etc.), technology ("Web", "Cloud", etc.) and locale ("1033", etc.). The automation model (EnvDTE, EnvDTE80) provides the EnvDTE80.Solution2.GetProjectTemplate method to get a project template file name given the project template name (such as "ClassLibrary.zip") and the programming language (such as "CSharp" or "VisualBasic"). 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). The following add-in, when loaded, creates a solution with two Class Library projects, one for C# and another for VB.NET, each one in its own subfolder:
using System;
using Extensibility;
using EnvDTE;
using EnvDTE80;
namespace MyAddin1
{
public class Connect : IDTExtensibility2
{
private DTE2 _applicationObject;
private AddIn _addInInstance;
public void OnConnection(object application, ext_ConnectMode connectMode, object addInInst, ref Array custom)
{
_applicationObject = (DTE2)application;
_addInInstance = (AddIn)addInInst;
switch( connectMode)
{
case ext_ConnectMode.ext_cm_AfterStartup:
// The add-in has been loaded after Visual Studio was loaded. Since Visual Studio
// is fully initialized, we can initialize the add-in
InitializeAddIn();
break;
case ext_ConnectMode.ext_cm_Startup:
// The add-in has been loaded with Visual Studio. Do nothing until Visual Studio
// is fully initialized (the OnStartupComplete method will be called)
break;
case ext_ConnectMode.ext_cm_UISetup:
// Do nothing in this case
break;
}
}
public void OnStartupComplete(ref Array custom)
{
InitializeAddIn();
}
private void InitializeAddIn()
{
CreateSolution("MySolutionSubfolder", "MySolution");
CreateProject("MyCSharpProjectSubfolder", "MyCSharpProject", "ClassLibrary.zip", "CSharp");
CreateProject("MyVBProjectSubfolder", "MyVBProject", "ClassLibrary.zip", "VisualBasic");
}
private void CreateSolution(string solutionSubFolder, string solutionName)
{
string vsualStudioProjectsFolder;
string solutionFullFolder;
string solutionFullFileName;
try
{
if (_applicationObject.Solution.IsOpen)
{
// Close the solution saving it
_applicationObject.Solution.Close(true);
}
// Get the parent folder for Visual Studio projects
vsualStudioProjectsFolder = GetVisualStudioProjectsFolder();
// Get the folder where to save the solution
solutionFullFolder = System.IO.Path.Combine(vsualStudioProjectsFolder, solutionSubFolder);
// Important: if the folder doesn't exist, create it. Otherwise Visual Studio
// doesn't create it and a prompt is shown when the SaveAs method is called
if (!System.IO.Directory.Exists(solutionFullFolder))
{
System.IO.Directory.CreateDirectory(solutionFullFolder);
}
// Compose the full name of the solution file
solutionFullFileName = System.IO.Path.Combine(solutionFullFolder, solutionName + ".sln");
// Create the solution
_applicationObject.Solution.Create(solutionFullFolder, solutionName);
// Save the solution
_applicationObject.Solution.SaveAs(solutionFullFileName);
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.ToString());
}
}
private void CreateProject(string projectSubFolder, string projectName, string projectTemplateName, string language)
{
EnvDTE80.Solution2 solution2;
string solutionFileFullName;
string solutionFolderFullName;
string projectTemplateFileFullName;
string projectFolderFullName;
try
{
solution2 = (EnvDTE80.Solution2) _applicationObject.Solution;
// Get the full name of the solution file
solutionFileFullName = solution2.FileName;
// Get the full name of the solution folder
solutionFolderFullName = System.IO.Path.GetDirectoryName(solutionFileFullName);
// Compose the full name of the project folder
projectFolderFullName = System.IO.Path.Combine(solutionFolderFullName, projectSubFolder);
if (!(projectFolderFullName.EndsWith("\\")))
{
projectFolderFullName += "\\";
}
// Get the project template
projectTemplateFileFullName = solution2.GetProjectTemplate(projectTemplateName, language);
// Add the project
solution2.AddFromTemplate(projectTemplateFileFullName, projectFolderFullName, projectName, false);
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.ToString());
}
}
private string GetVisualStudioProjectsFolder()
{
string version = "";
string result;
Microsoft.Win32.RegistryKey registryKey;
switch (_applicationObject.Version)
{
case "8.0":
version = "8.0";
break;
case "9.0":
version = "9.0";
break;
case "10.0":
version = "10.0";
break;
case "11.0":
version = "11.0";
break;
}
registryKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\VisualStudio\" + version);
result = registryKey.GetValue("VisualStudioProjectsLocation").ToString();
registryKey.Close();
return result;
}
public void OnDisconnection(ext_DisconnectMode disconnectMode, ref Array custom)
{
}
public void OnAddInsUpdate(ref Array custom)
{
}
public void OnBeginShutdown(ref Array custom)
{
}
}
}
Imports System
Imports Extensibility
Imports EnvDTE
Imports EnvDTE80
Public Class Connect
Implements IDTExtensibility2
Private _applicationObject As DTE2
Private _addInInstance As AddIn
Public Sub OnConnection(ByVal application As Object, ByVal connectMode As ext_ConnectMode, _
ByVal addInInst As Object, ByRef custom As Array) Implements IDTExtensibility2.OnConnection
_applicationObject = CType(application, EnvDTE80.DTE2)
_addInInstance = CType(addInInst, EnvDTE.AddIn)
Select Case connectMode
Case ext_ConnectMode.ext_cm_AfterStartup
' The add-in has been loaded after Visual Studio was loaded. Since Visual Studio
' is fully initialized, we can initialize the add-in
InitializeAddIn()
Case ext_ConnectMode.ext_cm_Startup
' The add-in has been loaded with Visual Studio. Do nothing until Visual Studio
' is fully initialized (the OnStartupComplete method will be called)
Case ext_ConnectMode.ext_cm_UISetup
' Do nothing in this case
End Select
End Sub
Public Sub OnStartupComplete(ByRef custom As Array) Implements IDTExtensibility2.OnStartupComplete
InitializeAddIn()
End Sub
Private Sub InitializeAddIn()
CreateSolution("MySolutionSubfolder", "MySolution")
CreateProject("MyCSharpProjectSubfolder", "MyCSharpProject", "ClassLibrary.zip", "CSharp")
CreateProject("MyVBProjectSubfolder", "MyVBProject", "ClassLibrary.zip", "VisualBasic")
End Sub
Private Sub CreateSolution(ByVal solutionSubFolder As String, ByVal solutionName As String)
Dim vsualStudioProjectsFolder As String
Dim solutionFullFolder As String
Dim solutionFullFileName As String
Try
If _applicationObject.Solution.IsOpen Then
' Close the solution saving it
_applicationObject.Solution.Close(True)
End If
' Get the parent folder for Visual Studio projects
vsualStudioProjectsFolder = GetVisualStudioProjectsFolder()
' Get the folder where to save the solution
solutionFullFolder = System.IO.Path.Combine(vsualStudioProjectsFolder, solutionSubFolder)
' Important: if the folder doesn't exist, create it. Otherwise Visual Studio
' doesn't create it and a prompt is shown when the SaveAs method is called
If Not System.IO.Directory.Exists(solutionFullFolder) Then
System.IO.Directory.CreateDirectory(solutionFullFolder)
End If
' Compose the full name of the solution file
solutionFullFileName = System.IO.Path.Combine(solutionFullFolder, solutionName & ".sln")
' Create the solution
_applicationObject.Solution.Create(solutionFullFolder, solutionName)
' Save the solution
_applicationObject.Solution.SaveAs(solutionFullFileName)
Catch ex As Exception
System.Windows.Forms.MessageBox.Show(ex.ToString())
End Try
End Sub
Private Sub CreateProject(ByVal projectSubFolder As String, ByVal projectName As String, _
ByVal projectTemplateName As String, ByVal language As String)
Dim solution2 As EnvDTE80.Solution2
Dim solutionFileFullName As String
Dim solutionFolderFullName As String
Dim projectTemplateFileFullName As String
Dim projectFolderFullName As String
Try
solution2 = CType(_applicationObject.Solution, EnvDTE80.Solution2)
' Get the full name of the solution file
solutionFileFullName = solution2.FileName
' Get the full name of the solution folder
solutionFolderFullName = System.IO.Path.GetDirectoryName(solutionFileFullName)
' Compose the full name of the project folder
projectFolderFullName = System.IO.Path.Combine(solutionFolderFullName, projectSubFolder)
If Not projectFolderFullName.EndsWith("\") Then
projectFolderFullName &= "\"
End If
' Get the project template
projectTemplateFileFullName = solution2.GetProjectTemplate(projectTemplateName, language)
' Add the project
solution2.AddFromTemplate(projectTemplateFileFullName, projectFolderFullName, projectName, False)
Catch ex As Exception
System.Windows.Forms.MessageBox.Show(ex.ToString())
End Try
End Sub
Private Function GetVisualStudioProjectsFolder() As String
Dim version As String = ""
Dim result As String
Dim registryKey As Microsoft.Win32.RegistryKey
Select Case _applicationObject.Version
Case "8.0"
version = "8.0"
Case "9.0"
version = "9.0"
Case "10.0"
version = "10.0"
Case "11.0"
version = "11.0"
End Select
registryKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("Software\Microsoft\VisualStudio\" & version)
result = registryKey.GetValue("VisualStudioProjectsLocation").ToString()
registryKey.Close()
Return result
End Function
Public Sub OnDisconnection(ByVal disconnectMode As ext_DisconnectMode, ByRef custom As Array) _
Implements IDTExtensibility2.OnDisconnection
End Sub
Public Sub OnAddInsUpdate(ByRef custom As Array) Implements IDTExtensibility2.OnAddInsUpdate
End Sub
Public Sub OnBeginShutdown(ByRef custom As Array) Implements IDTExtensibility2.OnBeginShutdown
End Sub
End Class
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