[mapguide-users] How to Highlight Line Features

[padmini godavarthi]

Hi,
In my table STARTVALVE has unique valves .By using that "STARTVALVE"
property iam trying for selection .


Regards,
Padmini.
 

Kenneth Skovhede, GEOGRAF A/S wrote:
> 
> You cannot use selection if the table does not have unique primary keys.
> 
> Regards, Kenneth Skovhede, GEOGRAF A/S
> 
> 
> 
> padmini godavarthi skrev:
>> Hi,
>> In my table iam not having any primary key columns.
>>
>> Thanks and Regards,
>> Padmini
>>
>>
>>
>>
>> Kenneth Skovhede, GEOGRAF A/S wrote:
>>   
>>> I think your data has broken primary keys (eg. empty strings as primary 
>>> key).
>>>
>>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>>
>>>
>>>
>>> padmini godavarthi skrev:
>>>     
>>>>   Hi,
>>>> iam using Mapguide opensource 2.0 (with .net 2.0 +IIS 5.1)
>>>> Now iam struck up with high lighting line features on the map.
>>>>
>>>> my code is as follows:-
>>>> -------------------------------
>>>>
>>>>
>>>>     Dim fetresource1 As MgResourceIdentifier = New
>>>> MgResourceIdentifier("Library://WaterNetwork/data/resource.FeatureSource")
>>>>         Dim nameQuery1 As MgFeatureQueryOptions = New
>>>> MgFeatureQueryOptions()
>>>>         Dim val1 As String = "STARTVALVE"
>>>>         nameQuery1.AddFeatureProperty(val1)
>>>>               nameQuery1.SetFilter("STARTVALVE ='124'")
>>>>         Dim layer1 As MgLayer = map.GetLayers().GetItem("waterpipe")
>>>>         layer1.Selectable = True
>>>>         Dim featureReader1 As MgFeatureReader =
>>>> featureService.SelectFeatures(fetresource1,
>>>> layer1.GetFeatureClassName(),
>>>> nameQuery1)
>>>>
>>>>         Dim selection As MgSelection = New MgSelection(map)
>>>>         selection.AddFeatures(layer1, featureReader1, 0)
>>>>         Dim selectXML As String = selection.ToXml()
>>>>         selection.Save(resourceService, "watermap")
>>>>         Page.ClientScript.RegisterStartupScript(Page.GetType(), "test",
>>>> "select('" & selectXML & "')", True)
>>>>
>>>>         map.Save(resourceService)
>>>>
>>>>         featureReader1.Close()
>>>> -------------------------------------------------------------------------------------------------
>>>>
>>>> function select(val) {
>>>>      
>>>>          var selectionXML = val;
>>>>           parent.parent.SetSelectionXML(selectionXML); 
>>>>                  alert("Selected");
>>>>       parent.parent.refresh;
>>>>          
>>>>         }
>>>>
>>>>
>>>> but the line  feature is not highlighting ?  but this code works with
>>>> polygon feature.
>>>> i  found that in xml 
>>>>
>>>>
>>>> <?xml version="1.0" encoding="UTF-8"?><FeatureSet
>>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>>> xsi:noNamespaceSchemaLocation="FeatureSet-1.0.0.xsd"> <Layer
>>>> id="1f6baf1e-0000-1000-8000-0016e692a356">  <Class
>>>> id="KingOra:IMCN~GIS_WATERPIPE_DETAILS~SHAPE">   <ID></ID>   <ID></ID> 
>>>> </Class> </Layer></FeatureSet>
>>>>
>>>> ID doesn't came.is there problem with ID?
>>>>
>>>> Can u plz tell me the solution?
>>>>
>>>> Thanks and Regards,
>>>> Padmini
>>>>
>>>>   
>>>>       
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>>>
>>>
>>>     
>>
>>   
> 
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