[mapguide-users] Zoom To Selection

[Nandorov]

featureService.SelectFeatures(parcelId, "GEOM_TABLE", nameQuery); 

i think you should use layer class name instead of layer name

featureService.SelectFeatures(parcelId, YourLayer.GetFeatureClassName(),
nameQuery); 


padmini godavarthi wrote:
> 
> 
> Hi,
> Iam using Mapguide Opensource 2.0 (with .net 2.0 +IIS 5.1)
> 
> I want to query the parcel_id and zoomed it on the map
> 
> may code is
> 
> 
>        NameValueCollection serverVars = Request.ServerVariables;
>        String strServerVars = "";
>        foreach (String str in serverVars.AllKeys)
>        {
> 
>            strServerVars += "<br>" + str;
> 
>        }
>        String platform = serverVars["SERVER_SOFTWARE"];
>        String queryStr = serverVars["QUERY_STRING"];
>        string queryStr1 = serverVars["Form"];
>        NameValueCollection requestParams = Request.HttpMethod == "POST" ?
> Request.Form : Request.QueryString;
>        String sessionId = Request.QueryString["SESSION"];
>        //String sessionId = Request.QueryString["SESSION"]; ;
> 
>        string realPath = Request.ServerVariables["APPL_PHYSICAL_PATH"];
>        String configPath = realPath + "webconfig.ini";
>        MapGuideApi.MgInitializeWebTier(configPath);
> 
>        MgUserInformation userInfo = new MgUserInformation(sessionId);
> 
>        MgSiteConnection siteConnection = new MgSiteConnection();
>        siteConnection.Open(userInfo);
> 
>        MgResourceService resService =
> (MgResourceService)siteConnection.CreateService(MgServiceType.ResourceService);
>        MgFeatureService featureService =
> (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService);
> 
>        MgMap map = new MgMap();
>        map.Open(resService, "oramap");
> 
> 
>        MgFeatureQueryOptions nameQuery = new MgFeatureQueryOptions();
> 
> //nameQuery.SetFilter(ConfigurationManager.AppSettings["FieldToFilter"] +
> "=" + Globals.gURLParam);
>        nameQuery.SetFilter("PARCEL_ID" + "=" + "670_111");
>        MgResourceIdentifier parcelId = new
> MgResourceIdentifier("Library://Orasample/resora.FeatureSource");
>        MgFeatureReader featureReader =
> featureService.SelectFeatures(parcelId, "GEOM_TABLE", nameQuery);
> 
>        //Highlight the query result on the map
>        MgSelection selection = new MgSelection(map);
>        MgLayer layer = (MgLayer)map.GetLayers().GetItem("GEOM_TABLE");
> 
> 
>        featureReader = featureService.SelectFeatures(parcelId,
> "GEOM_TABLE", nameQuery);
>        selection.AddFeatures(layer, featureReader, 0);
>      String selectXML = selection.ToXml();
>        selection.Save(resService, "oramap");
>        Page.ClientScript.RegisterStartupScript(Page.GetType(), "test",
> "select('" + selectXML + "');", true);
> }
> 
> but i got an error at
> 
>   MgFeatureReader featureReader = featureService.SelectFeatures(parcelId,
> "GEOM_TABLE", nameQuery);
> 
> 
> 1)can u plz tell me what do u man by faeture class name?
> from where i will gt it?
> 
> Thanks and Regards,
> Padmini.
> 

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