[mapguide-users] Error when instantiating a Map via MgMap.Open() method

[Jackie Ng]

Open() is for opening a runtime map. This is usually a map from an already
initialized weblayout.

If you are trying to instantiate maps outside of the ajax viewer, you should
be using the Create() method instead.

- Jackie



Maksim Sestic wrote:
> 
> Hi all,
> 
> It's about MGE 2008 and instantiating MpMap type via MgMap.Open() method.
> It throws an exception saying that "Resource was not found". I tried
> various types of parameters on overloaded Open method and none of them
> worked, throwing the same exception. Necessary connection and services
> were instantiated just fine. It always dies at the MgMap.Open(...) line:
> 
> (Method 1 - via Library ResourceIdentifier)
> Dim svc As MgResourceService = CType(Me.SiteConnection.CreateService(0),
> MgResourceService)
> Dim m As MgMap = New MgMap()
> Dim id As String = "Library://...(path to my map)..."
> Dim resId As MgResourceIdentifier = New MgResourceIdentifier(id)
> m.Open(svc, id)
> 
> (Method 2 - via Map name)
> Dim svc As MgResourceService = CType(Me.SiteConnection.CreateService(0),
> MgResourceService)
> Dim m As MgMap = New MgMap()
> m.Open(svc, "NameOfMyMap")
> 
> (Method 3 - via Session + Map name)
> Dim site As MgSite = New MgSite
> site.Open(Me.UserInformation)
> dim sessionId As String = site.CreateSession
> Dim svc As MgResourceService = CType(Me.SiteConnection.CreateService(0),
> MgResourceService)
> Dim id As String = "Session:"+sessionId+"//NameOfMyMap"
> Dim resId As MgResourceIdentifier = New MgResourceIdentifier(id)
> m.Open(svc, id)
> 
> and few other methods but none of them worked :-)
> 
> Is there any help to this?
> 
> Regards,
> Maksim Sestic
> 
> 

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