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Solution Interface

Visual Studio 2005

Represents all projects and solution-wide properties in the integrated development environment (IDE). Use this object for functionality and refer to _Solution for documentation.

Namespace: EnvDTE
Assembly: EnvDTE (in envdte.dll)

Syntax

C++

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[GuidAttribute("26F6CC4B-7A48-4E4D-8AF5-9E960232E05F")] 
public interface Solution : _Solution

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/** @attribute GuidAttribute("26F6CC4B-7A48-4E4D-8AF5-9E960232E05F") */ 
public interface Solution extends _Solution

JScript

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GuidAttribute("26F6CC4B-7A48-4E4D-8AF5-9E960232E05F") 
public interface Solution extends _Solution

Remarks

The Solution object is a collection of all the projects in the current instance of the IDE and all solution-wide properties such as build configurations. The Solution object contains a project element for every project, whether it is a wrapped project, a subproject, or a top-level project.

Reference this object by using DTE.Solution. To refer to virtual projects, such as MiscFiles or SolutionItems, use Solution.Item(EnvDTE.Constants.vsProjectKindMisc) or Solution.Item(EnvDTE.Constants.vsProjectKindSolutionItems).

Example

This example works only in Visual Studio .NET 2003. For more information, see Migrating Code that Creates Projects by Using Templates.

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Sub SolutionExample()
   ' This function creates a solution and adds a Visual Basic Console
   ' project to it. 
   Dim soln As Solution
   Dim proj As Project
   Dim msg As String

   ' Create a reference to the solution.
   soln = DTE.Solution

   ' Create a new solution.
   soln.Create("c:\temp2", "MyNewSolution")

   ' Create a new Visual Basic Console application project.
   ' Adjust the save path as needed.
   proj = soln.AddFromTemplate("D:\Program Files\Microsoft Visual Studio .NET\Vb7\VBWizards\ConsoleApplication\Templates\1033\ConsoleApplication.vbproj", "c:\temp2", "My New Project", True)
   ' Save the new solution and project.
   soln.SaveAs("c:\temp2\newsolution.sln")
   msg = "Created new solution: " & soln.FullName & vbCrLf
   msg = msg & "Created new project: " & proj.Name
   MsgBox(msg)
End Sub

Reference

Solution Members
EnvDTE Namespace

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FAQ

The Solution object is always available

In Visual Studio, there are always two objects that are always available, DTE and Solution. The Solution object, even though there may not be any projects or files open, is always available for use.

History

6/16/2006
Craig Skibo - MSFT

Solution is a lifetime controller

Like the DTE object, Solution is used to control the lifetime of the IDE when being used programmatically. When the number of external (references through a out of process controller) COM references on the DTE object, plus the number of external COM references on the Solution object, plus 1 if the DTE.UserControl property is set to true, becomes 0, then Visual Studio will close. If you are programming Visual Studio with an out of process COM controller, then you need to keep this sum of references above 0 to make sure that Visual Studio does not close.

History

6/16/2006
Craig Skibo - MSFT

Solution containing projects

This article states that the Solution object is a collection of projects. This is true from both a programmatic view and a UI view (the solution node in the Solution Explorer is a container for projects). But from the programatic view, the list of projects are also available from the Solution.Projects property. While you can call foreach on the DTE.Solution object to enumerate projects, you can do the same exact thing on DTE.Solution.Projects. The Projects property was added to Visual Studio 2002 because usability results were telling us that the Solution object, which was singular in number, did not seem like it was a true collection - and so the Projects property was added.

History

6/16/2006
Craig Skibo - MSFT