What worked for me as a glove was to implement the IVsRunningDocTableEvents3 interface by overriding the OnBeforeSave method.
That way I knew exactly when the project was about to be saved and to perform the actions I needed.
Eg:
uint cookie;
var runningDocumentTable = (IVsRunningDocumentTable)GetGlobalService(typeof(SVsRunningDocumentTable));
runningDocumentTable.AdviseRunningDocTableEvents(new RunningDocTableEventsHandler(), out cookie);
using Microsoft.VisualStudio;
using Microsoft.VisualStudio.Shell;
using Microsoft.VisualStudio.Shell.Interop;
namespace YourProject
{
internal class RunningDocTableEventsHandler : IVsRunningDocTableEvents3
{
#region Methods
public int OnAfterFirstDocumentLock(uint docCookie, uint dwRDTLockType, uint dwReadLocksRemaining, uint dwEditLocksRemaining)
{
return VSConstants.S_OK;
}
public int OnBeforeLastDocumentUnlock(uint docCookie, uint dwRDTLockType, uint dwReadLocksRemaining, uint dwEditLocksRemaining)
{
return VSConstants.S_OK;
}
public int OnAfterSave(uint docCookie)
{
return VSConstants.S_OK;
}
public int OnAfterAttributeChange(uint docCookie, uint grfAttribs)
{
return VSConstants.S_OK;
}
public int OnBeforeDocumentWindowShow(uint docCookie, int fFirstShow, IVsWindowFrame pFrame)
{
return VSConstants.S_OK;
}
public int OnAfterDocumentWindowHide(uint docCookie, IVsWindowFrame pFrame)
{
return VSConstants.S_OK;
}
public int OnAfterAttributeChangeEx(uint docCookie, uint grfAttribs, IVsHierarchy pHierOld, uint itemidOld, string pszMkDocumentOld, IVsHierarchy pHierNew, uint itemidNew, string pszMkDocumentNew)
{
return VSConstants.S_OK;
}
public int OnBeforeSave(uint docCookie)
{
/////// MY CODE ////////
return VSConstants.S_OK;
}
#endregion Methods
}
}
