[Users] "GeoExt.grid.FeatureSelectionModel()" destroys Layout
Christian Willmes
c.willmes at uni-koeln.de
Fri Jan 21 10:50:31 CET 2011
FYI, I have it working now!
I had messed up the Projections and maxExtent of the OpenLayers Map...
Thanks for your help with this again!
regards
Christian
On 20.01.2011 18:51, Christian Willmes wrote:
> Hi,
>
> I was not aware, that order of code matters here, but good to know!
>
> I rearranged the code, so that the vectorLayer Sites is added to the map
> before the grid gets initialized.
>
> Now the "sm: new GeoExt.grid.FeatureSelectionModel()" does not break the
> layout any more, which is great, but the OpenLayersMap now shows a
> "bluescreen".
>
> -> http://www.sfb806db.uni-koeln.de/irtg_webgis/app-sent-to-geoext.html
>
> And of course I use firebug, but I did not get that error if I used it
> on my local files, I just got it if I used it on the uploded version,
> requesting it via http fromthe server...
>
> In the version I uploaded now to the server, I get still the
> "this.mapObject is null" error, It indicates that it originates from
> Line 512 in my code, which is:
> items: [mappanel,tree,legend,descpanel]
>
> in the panl = new Ext.Panel() function at the very bottom of the code,
> where the map object should be initialized as far as I can see?
>
> I can't see the problem, can you pleas enlighten me here, on how and in
> which order I correctly have to initialize the different objects?
>
> Thank you very much
> Christian
>
>
> On 20.01.2011 17:42, geographika wrote:
>> Hi,
>>
>> Do you have FireBug installed for FireFox?
>> The reason your layout is breaking is due to a JavaScript error:
>>
>> layer.map is null
>> at: layer.map.addControl(selectControl);
>> http://www.sfb806db.uni-koeln.de/irtg_webgis/libs/GeoExt/lib/GeoExt/widgets/grid/FeatureSelectionModel.js
>>
>>
>> Your Sites layer has not been added to the map at this point, so the map
>> property is null.
>> Try adding your Sites layer to the map before you create your grid panel
>> as in the GeoExt example.
>>
>> From the API documentation -
>> http://www.geoext.org/lib/GeoExt/widgets/grid/FeatureSelectionModel.html
>>
>> layer
>> OpenLayers.Layer.Vector The vector layer used for the creation of
>> the select feature control, it must already be added to the map. If
>> not provided, the layer bound to the grid's store, if any, will be used.
>>
>>
>> Regards,
>>
>>
>> Seth
>>
>> On 20/01/2011 17:26, Christian Willmes wrote:
>>> Hi,
>>>
>>> I removed
>>> /sm: new GeoExt.grid.FeatureSelectionModel(), /
>>> from
>>> /var Store = new GeoExt.data.FeatureStore({ /
>>>
>>> and uncommented the sm in the grid. This breaks the layout (broken
>>> version now on the server).
>>>
>>> Does anyone have maybe a link to a similar app, where this
>>> GeoExt.grid.FeatureSelectionModel() is implemented sucsessfully (other
>>> than the feature-grid.html geoext example), from which I maybe could
>>> learn?
>>>
>>> Thanks,
>>> Christian
>>>
>>> On 20.01.2011 15:55, geographika wrote:
>>>> Hi,
>>>>
>>>> I can't see anything in a brief look at the code.
>>>>
>>>> Your:
>>>>
>>>> /var Store = new GeoExt.data.FeatureStore({ /
>>>>
>>>> should not have a sm property:
>>>>
>>>> /sm: new GeoExt.grid.FeatureSelectionModel(), /
>>>>
>>>> The layout seems fine in IE and FF. Maybe uncomment the sm: in your grid
>>>> so we can see what is happening.
>>>>
>>>> Regards,
>>>>
>>>> Seth
>>>>
>>>> http://geographika.co.uk
>>>>
>>>> On 20/01/2011 13:50, Christian Willmes wrote:
>>>>> Hi Seth,
>>>>>
>>>>> thank you for the tip with JSLint. It seems to be a very useful tool. I
>>>>> cleaned up my code accordingly to the errors shown by JSLint.
>>>>> But that did not solved the problem with the
>>>>> GeoExt.grid.FeatureSelectionModel() breaking the layout.
>>>>>
>>>>> Any further tips/hints anyone?
>>>>>
>>>>> Thanks!
>>>>>
>>>>> Christian
>>>>>
>>>>> On 20.01.2011 12:09, geographika wrote:
>>>>>> Hi Christian,
>>>>>>
>>>>>> Your sample site does not load in IE due to extra commas. Run your
>>>>>> code
>>>>>> throughhttp://www.jslint.com/ to find where these are.
>>>>>> I've found breaking layouts in FF can often be caused by these.
>>>>>> Regards,
>>>>>>
>>>>>> Seth
>>>>>>
>>>>>> http://geographika.co.uk
>>>>>>
>>>>>> On 20/01/2011 12:00, Christian Willmes wrote:
>>>>>>> Hello,
>>>>>>>
>>>>>>> in the moment I try to connect a GeoExt.data.FeatureStore to a
>>>>>>> Ext.grid.GridPanel using GeoExt.grid.FeatureSelectionModel() for
>>>>>>> interaction.
>>>>>>>
>>>>>>> I am able to connect the FeatureStore to the GridPanel, but as soon
>>>>>>> as I
>>>>>>> add the FeatureSelectionModel, the complete PanelLayout is destroyed.
>>>>>>>
>>>>>>> This is the source of the GridPanel:
>>>>>>>
>>>>>>> var grid = new Ext.grid.GridPanel({
>>>>>>> width: '100%',
>>>>>>> height: 143,
>>>>>>> viewConfig: {forceFit: true},
>>>>>>> store: Store,
>>>>>>> //sm: new GeoExt.grid.FeatureSelectionModel(),
>>>>>>> cm: new Ext.grid.ColumnModel({
>>>>>>> defaults: {
>>>>>>> sortable: true
>>>>>>> },
>>>>>>> columns: [
>>>>>>> {header: "Site", dataIndex: "site"},
>>>>>>> {header: "Stage", dataIndex: "stage"},
>>>>>>> {header: "Technocomplex", dataIndex: "technocomp"},
>>>>>>> {header: "Method", dataIndex: "methode"},
>>>>>>> {header: "Age (calbp)", dataIndex: "calbp"},
>>>>>>> {header: "standard deviation", dataIndex: "std"},
>>>>>>> {header: "Autor", dataIndex: "Autor"},
>>>>>>> {header: "LabCode", dataIndex: "LabCode"}
>>>>>>> ]
>>>>>>> })
>>>>>>> });
>>>>>>>
>>>>>>> You can find the complete application here:
>>>>>>> http://www.sfb806db.uni-koeln.de/irtg_webgis/app-sent-to-geoext.html
>>>>>>> (if
>>>>>>> you may want to have a look at the complete source).
>>>>>>>
>>>>>>> If the "sm: new GeoExt.grid.FeatureSelectionModel()" is commented
>>>>>>> out,
>>>>>>> everything looks fine, see (The style rules for the data are just for
>>>>>>> testing at the moment! ;)):
>>>>>>>
>>>>>>> http://www.sfb806db.uni-koeln.de/irtg_webgis/commented.png
>>>>>>>
>>>>>>> If I uncomment the "sm: new GeoExt.grid.FeatureSelectionModel()" it
>>>>>>> breks the Layout see:
>>>>>>>
>>>>>>> http://www.sfb806db.uni-koeln.de/irtg_webgis/uncommented.png
>>>>>>>
>>>>>>> But I need to have the interaction between the Grid and the selected
>>>>>>> features on the map, any hint or advice to get this is very
>>>>>>> apreciatred!
>>>>>>>
>>>>>>> Thank you very much and best regards,
>>>>>>> Christian
>>>>>>>
>>>>>>>
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--
Christian Willmes
AG GIS & Fernerkundung | GIS & RS Group
Geographisches Institut | Institute of Geography
Universität zu Köln | University of Cologne
Tel.: +49 (0)221 470 6234
Fax.: +49 (0)221 470 2280
http://www.geographie.uni-koeln.de/gis
http://www.sfb806.de
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