[mapguide-users] RE: RE: Working with the current selection
Knight, Gregory
Gregory.Knight.bra at cityofboston.gov
Fri Oct 13 15:27:28 EDT 2006
Siju,
MapGuide will do this inherently with very little effort. There are a
number of things you need to do to enable this. First, in the layer
definition, enable select the properties you wish to display when
someone selects a feature object in the viewer. Second, in the Map
definition, enable feature selection for the desired layer. Lastly, in
the Layout definition, enable the properties pane component in the
viewer. That's all there is too it. Id suggest you look at the
Sheybogan sample application for further details.
Greg
-----Original Message-----
From: Cory Gregor [mailto:cgregor at barkerlemar.com]
Sent: Friday, October 13, 2006 2:40 PM
To: users at mapguide.osgeo.org
Subject: [mapguide-users] RE: RE: Working with the current selection
Hi,
I am kinda new to this and have not yet gone over all the posts. But
maybe
one you can point me to a post or can help me with what I am trying to
do.
Basically, I want handle a click or a double click event on the map.
When
the user clicks a parcel or anyother point, I want to be able to get the
current selection so that I can display some custom properties related
to
the point selected. What is the correct way to do this? Any help would
be
appreciated. Thanks,
Siju
Alain Lebatard wrote:
>
> Brian,
>
>
>
> What you have tried before is the correct way to do, only the way you
> retrieved the selection was not correct. Here is how things work:
>
>
>
> In Studio's Web layout editor, in your InvokeURL command definition,
> give a name to the parameter carrying the selection (I called it SEL
in
> this example, you're free to give the name you want):
>
>
>
>
>
>
>
> When the server-side script is invoked, the parameter SEL contains the
> XML description of the selection (snippet in C#)
>
>
>
> ...
>
> String selectionStr = Request.Form["SEL"];
>
> MgSelection selection = new MgSelection(map);
>
> selection.FromXml(selectionStr);
>
> ...
>
>
>
> Alain
>
>
>
> -----Original Message-----
> From: Berdel, Brian [mailto:brian.berdel at mcmtrans.com]
> Sent: Friday, April 28, 2006 8:23 AM
> To: users at mapguide.osgeo.org
> Subject: RE: [mapguide-users] RE: Working with the current selection
>
>
>
> Never mind, finally got it using invoke script... thanks for all of
your
>
> help.
>
>
>
> -----Original Message-----
>
> From: Berdel, Brian [mailto:brian.berdel at mcmtrans.com]
>
> Sent: Friday, April 28, 2006 10:15 AM
>
> To: users at mapguide.osgeo.org
>
> Subject: RE: [mapguide-users] RE: Working with the current selection
>
>
>
> I have tried multiple things and for some reason (maybe I am an idiot)
>
> but I am having trouble grasping how to grab the parameter in asp.net
>
> I know I am missing something.... thanks for your help.
>
> I have tried
>
>
>
> Dim resourceService As MgResourceService =
>
> siteConnection.CreateService(MgServiceType.ResourceService)
>
> Dim featureService As MgFeatureService =
>
> siteConnection.CreateService(MgServiceType.FeatureService)
>
> Dim queryOptions As New MgFeatureQueryOptions
>
> Dim map As New MgMap
>
> map.Open(resourceService, "mymap")
>
> Dim Selection As New MgSelection(map)
>
>
>
> Selection.FromXml("CurrentSelection") or
>
> Selection.FromXml("$CurrentSelection")
>
>
>
> -----Original Message-----
>
> From: Alain Lebatard [mailto:alain.lebatard at autodesk.com]
>
> Sent: Wednesday, April 26, 2006 1:40 PM
>
> To: users at mapguide.osgeo.org
>
> Subject: RE: [mapguide-users] RE: Working with the current selection
>
>
>
> $CurrentSelection is what you specify in Studio's web layout editor to
>
> indicate that this command should send the current selection to the
>
> server. When you create an Invoke URL command in Studio, look in the
>
> "Additional parameters" tab, in the list "Pass in these additional
>
> parameters to the URL". There you specify as "Key" the name of the
>
> parameter you want for the selection, and as "Value" the macro
>
> $CurrentSelection.
>
>
>
> The viewer code will replace this macro with the actual value of the
>
> selection at run-time, when the command is executed. The Asp.net
script
>
> will receive the XML description of the selection in the parameter you
>
> specified in Studio. From there you can use an MgSelection object that
>
> you can initialize either with the MgSelection constructor or the
method
>
> FromXml.
>
>
>
> -----Original Message-----
>
> From: Berdel, Brian [mailto:brian.berdel at mcmtrans.com]
>
> Sent: Wednesday, April 26, 2006 10:27 AM
>
> To: users at mapguide.osgeo.org
>
> Subject: RE: [mapguide-users] RE: Working with the current selection
>
>
>
> Thanks for the response, but how would I reference the
$CurrentSelection
>
> parameter in asp.net?
>
>
>
> -----Original Message-----
>
> From: Alain Lebatard [mailto:alain.lebatard at autodesk.com]
>
> Sent: Wednesday, April 26, 2006 1:02 PM
>
> To: users at mapguide.osgeo.org
>
> Subject: RE: [mapguide-users] RE: Working with the current selection
>
>
>
> The way to make it work for both the AJAX viewer and the DWF viewer is
>
> to have the client send the current selection to your server-side
>
> script, instead of having the server script trying to get the
selection
>
> from the session repository.
>
>
>
> If your script is invoked from a web layout command 'Invoke URL', have
>
> the current selection sent to the script by adding in Studio the
>
> parameter $CurrentSelection to the command. If your script is invoked
by
>
> custom Javascript code, have this code retrieve the current selection
>
> with GetSelectionXML() and add a parameter to your URL to send this
>
> selection to the server. In this case be careful to use a POST request
>
> and not a GET, as the size of the selection might exceed the maximum
>
> length supported for a GET request (usually about 1K). Look at the
>
> Submit() method in FormFrame, which makes it easy to do a POST
request.
>
>
>
> Alain
>
>
>
> -----Original Message-----
>
> From: kalpesh [mailto:kalpesh at pie-solution.com]
>
> Sent: Tuesday, April 25, 2006 9:50 PM
>
> To: users at mapguide.osgeo.org
>
> Subject: [mapguide-users] RE: Working with the current selection
>
>
>
>
>
> But what if we want to make it work in DWF Viewer. Is there any
>
> workaround ?
>
>
>
> Kalpesh
>
> --
>
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>
>
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>
> html#a4094930
>
> Sent from the OSGeo MapGuide forum at Nabble.com.
>
>
>
>
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