Solution2.AddFromTemplate Method

Copies an existing project file, and any items or subdirectories it contains, to the specified location and adds it to the solution.

Namespace:  EnvDTE80
Assembly:  EnvDTE80 (in EnvDTE80.dll)


Function AddFromTemplate ( _
    FileName As String, _
    Destination As String, _
    ProjectName As String, _
    Exclusive As Boolean _
) As Project
Project AddFromTemplate(
    string FileName,
    string Destination,
    string ProjectName,
    bool Exclusive
Project^ AddFromTemplate(
    [InAttribute] String^ FileName, 
    [InAttribute] String^ Destination, 
    [InAttribute] String^ ProjectName, 
    [InAttribute] bool Exclusive
abstract AddFromTemplate : 
        FileName:string * 
        Destination:string * 
        ProjectName:string * 
        Exclusive:bool -> Project 
function AddFromTemplate(
    FileName : String, 
    Destination : String, 
    ProjectName : String, 
    Exclusive : boolean
) : Project


  • FileName
    Type: System.String
    Required. The full path and file name with extension of the template project file.
  • Destination
    Type: System.String
    Required. The full path of the directory in which to copy the contents of FileName.
  • ProjectName
    Type: System.String
    Required. The name of the project file in the destination directory. This should include the extension. The displayed name is derived from ProjectName.
  • Exclusive
    Type: System.Boolean
    Optional. Indicates whether the project loads in the current solution or its own; true if the current solution is closed and the project is added to a new solution, false if the project is added to the existing, open solution.

Return Value

Type: EnvDTE.Project
A Project object.


_Solution.AddFromTemplate(String, String, String, Boolean)


The name of the project displayed in Solution Explorer is ProjectName without the file extension. AddFromTemplate fails if the new project file name already exists in the destination.


For Visual Basic and Visual C# projects: The returned Project object has a value of Nothing or nulla null reference (Nothing in Visual Basic). You can find the created Project object by iterating through the DTE.Solution.Projects collection by using the ProjectName parameter to identify the newly created project.


For information on how to run this add-in code, see How to: Compile and Run the Automation Object Model Code Examples.

The following example creates a solution and adds a console application project to it.

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, DTE2)
    _addInInstance = CType(addInInst, AddIn)
End Sub

Sub SolutionExample(ByVal dte As DTE2)
    ' This function creates a solution and adds a Visual Basic Console
    ' project to it.
        Dim soln As Solution2 = CType(DTE.Solution, Solution2)
        Dim vbTemplatePath As String
        ' This path must exist on your computer.
        ' Replace <file path> below with an actual path.
        Dim vbPrjPath As String = "<file path>"
        ' Get the project template path for a Visual Basic console project.
        vbTemplatePath = soln.GetProjectTemplate _
        ("", "VisualBasic")
        ' Create a new C# Console project using 
        ' the template obtained above.
        soln.AddFromTemplate(vbTemplatePath, vbPrjPath, _
        "New Visual Basic Console Project", False)
    Catch ex As System.Exception
    End Try
End Sub
public void OnConnection(object application,
 Extensibility.ext_ConnectMode connectMode, object addInInst,
 ref System.Array custom)
    _applicationObject = (DTE2)application;
    _addInInstance = (AddIn)addInInst;
    // Pass the applicationObject member variable to the code example.

public void SolutionExample(DTE2 dte)
    // This function creates a solution and adds a Visual C# Console
    // project to it.
        Solution2 soln = (Solution2)_applicationObject.Solution;
        String csTemplatePath;
        // The file path must exist on your computer.
        // Replace <file path> below with an actual path.
        String csPrjPath = "<file path>";
    "<file path>MessageBox.Show("Starting...");
"<file path>"<file path>csTemplatePath = 
soln.GetProjectTemplate("", "CSharp");
        // Create a new C# Console project using the template obtained 
        // above.
        soln.AddFromTemplate(csTemplatePath, csPrjPath,
 "New CSharp Console Project", false);
    catch(SystemException ex)
        MessageBox.Show("ERROR: " + ex);

.NET Framework Security

See Also


Solution2 Interface

EnvDTE80 Namespace