| Author: |
Carlos J. Quintero (Microsoft MVP) |
Applies to: |
Microsoft Visual Studio .NET 2002 |
| Date: |
October 2005 |
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Microsoft Visual Studio .NET 2003 |
| Updated: |
March 2013 |
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Microsoft Visual Studio 2005 |
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Microsoft Visual Studio 2008 |
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Microsoft Visual Studio 2010 |
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Microsoft Visual Studio 2012 |
Introduction
This article describes how to cancel a build from a Visual Studio .NET add-in
if some condition is not met.
More Information
Sometimes you may want to use an add-in or macro to perform some action
before a solution or project is built, and to cancel the build action if some
condition is not met. For this purpose typically you use the events OnBuildBegin
or OnBuildProjConfigBegin of the EnvDTE.BuildEvents class. However, those events
lack a boolean output "cancel" parameter to cancel the build. To cancel the
build in such scenario, you can execute the "Build.Cancel" command of Visual
Studio .NET.
The following VB.NET add-in code shows how to cancel a build:
Private m_objDTE As EnvDTE.DTE
Private WithEvents m_objBuildEvents As EnvDTE.BuildEvents
Public Sub OnConnection(ByVal application As Object, _
ByVal connectMode As Extensibility.ext_ConnectMode, _
ByVal addInInst As Object, ByRef custom As System.Array) _
Implements Extensibility.IDTExtensibility2.OnConnection
m_objDTE = CType(application, EnvDTE.DTE)
m_objBuildEvents = m_objDTE.Events.BuildEvents
End Sub
Private Sub m_objBuildEvents_OnBuildBegin(ByVal Scope As EnvDTE.vsBuildScope, _
ByVal Action As EnvDTE.vsBuildAction) _
Handles m_objBuildEvents.OnBuildBegin
Select Case Action
Case vsBuildAction.vsBuildActionBuild, vsBuildAction.vsBuildActionRebuildAll
If MessageBox.Show("Do you want to cancel the build?", "Question", _
MessageBoxButtons.YesNo) = DialogResult.Yes Then
m_objDTE.ExecuteCommand("Build.Cancel")
End If
End Select
End Sub
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