Problems opening a map

[wcrichton]

Greetings,

I am working with MGE in an ASP development environment.

Everything was going fine (except for the lack of documentation for ASP, C# or VB)
I started by modifying some of the sample code to work with my own data.
I got things up and running but then...

I started to get an error when attempting to open a map object.
The error started out inconsistent, sometimes my page opened fine, other times it failed.
Then it became consistent and would fail every time.
I added a loop to attempt to open the map 1000 tries.
I still hit the error on every attempt.
Then I added in one more additional attempt and the map would open...!

Nasty...

Code sample is attached

Anyone out there working on the bleeding edge with me?

Cheers,
Will Crichton

[Anonymous]

wcrichton wrote:
> I added a loop to a
> ttempt to open the map 1000 tries.
> I still hit the error on every attempt.


I don't think it actually failed 1000 times.

You might want to modify this block:

try
{
map.Open(resourceService, "Composite");
IsMapOpen = true;
}

to this:

try
{
map.Open(resourceService, "Composite");
IsMapOpen = true;
KeepTrying = false;
}

Jason

[ales6]

I have the same problem. I did see that you can connect two ways by session id or username and password:

// this one does not work
MgUserInformation userInfo = new MgUserInformation(sessionID);

// this works
MgUserInformation userInfo = new MgUserInformation(username, password);

siteConnection = new MgSiteConnection();
siteConnection.Open(userInfo);

if site connected I try to:

MgResourceService resService = (MgResourceService)siteConnection.CreateService(MgServiceType.ResourceService);
MgLayerBase tmpLayer = null;
MgMap map = new MgMap();
// I get error
map.Open(resService, "Sheboygan");

Error description:

Invalid argument(s): [0] = " " The string cannot be empty.Invalid argument(s): [0] = " " The string cannot be empty. Exception occurred in method MgMap.Open at line 444 in file c:\build_bond_area\bond_nightly\build_41.3\ent\os\common\mapguidecommon\MapLayer/Map.cpp

Can anyone help please ?

[santosh.venkatesh]

Hey I am facing a similar issue that you had faced a while ago

Have you got a solution to the issuwe below

[gluckett]

You are creating a new MgMap() but not giving it a name or path:

map.Create(resService, new MgResourceIdentifier(“Library://Samples/Sheboygan/Maps/Sheboygan.MapDefinition”), “Sheboygan”);
map.Save();

then you can
map.Open(resService, "Sheboygan");

[santosh.venkatesh]

Hi,

 Thank you for your reply But I have already created a map session and my map has loaded from the XML

MgSiteConnection siteConnection = new MgSiteConnection();
            siteConnection = CreateMGSession(gszMGUser, gszMGPass, gszWebConfig);
            string szSessionId = siteConnection.GetSite().CreateSession();

            Session["Session"] = szSessionId;
            MgResourceService resSvc = default(MgResourceService);
            resSvc = (MgResourceService)siteConnection.CreateService(MgServiceType.ResourceService);

 Now I want to reopen to connection to get the selected feature from the map (Selection using the mouse)

if (Session["Session"] == null)
            return;
        String mgSessionId = Session["Session"].ToString();
        String mgMapName = "map";

        String configPath = ConfigurationManager.AppSettings["WebConfigPath"];
        MapGuideApi.MgInitializeWebTier(configPath);
        MgUserInformation userInfo = new MgUserInformation(mgSessionId);
        MgSiteConnection siteConnection = new MgSiteConnection();
        siteConnection.Open(userInfo);

  Here when opening the connection again using the same sessionid earlier created throws me an error "Session has expired or is invalid. Please log in again." 

This error is thrown when I use AIMS 2014 but works fine with MapGuide 2011

Am missing something here

Please guide..