topic Re: I'll complaint for the wpf binding programming style in ArcGIS API for Silverlight Questions

I'll complaint for the wpf binding programming style

yyz — Thu, 31 Mar 2011 03:31:34 GMT

I am a new comer to WPF programming, And I am using the esri silverlight/WPF api to develop some GIS app based on Arc Server service. The esri helper give many helps to the sivlerlight/WPF api and many demos. but the major in helps are achieved by staitic binding in wpf xaml. This is great when just need some simple and single task. But when I need to develop some complex functions, I need to combine several simple tool. but How can I do it in code behind ? For example active editor's select or add commant for the map control, or change the location of a feature in the featurelayer throug code, or May I need to change the feature attributes with code .
But so far, I donnt find a theme about these.
Should any body help me .

Thx so much! Appreciations!

Re: I'll complaint for the wpf binding programming style

JenniferNery — Fri, 10 Dec 2021 21:23:06 GMT

I think you are talking about this:

        <Grid.Resources>
            <esri:Editor x:Key="MyEditor" 
                         Map="{Binding ElementName=MyMap}" 
                         LayerIDs="ThreatAreas"
                         GeometryServiceUrl="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer"                          
                             />
        </Grid.Resources>

You are right. WPF does not like this binding statement under resources.
In WPF, you can delete the line in red and set its Map property in code-behind:

Editor editor = this.LayoutRoot.Resources["MyEditor"] as Editor;
editor.Map = this.MyMap;

This is related thread: http://forums.arcgis.com/threads/26130-WPF-vs-Silverlight

Re: I'll complaint for the wpf binding programming style

yyz — Fri, 10 Dec 2021 21:23:09 GMT

I think you are talking about this:

        <Grid.Resources>
            <esri:Editor x:Key="MyEditor" 
                         Map="{Binding ElementName=MyMap}" 
                         LayerIDs="ThreatAreas"
                         GeometryServiceUrl="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer"                          
                             />
        </Grid.Resources>

You are right. WPF does not like this binding statement under resources.
In WPF, you can delete the line in red and set its Map property in code-behind:

Editor editor = this.LayoutRoot.Resources["MyEditor"] as Editor;
editor.Map = this.MyMap;

This is related thread: http://forums.arcgis.com/threads/26130-WPF-vs-Silverlight

Thanks for your reply. But it is not just that .I want to do more. For example:
I obtain one Feature from the FeatureLayer T2 by Selecting. Then I want to change its location
and attributes. But it can not work. the codes were run, but when I update(refresh) the map,
the location have not changed.
Would you please give some advance about this. Thanks again.
Graphic g = T2.SelectedGraphics.ToList()[0];
MapPoint mp = g.Geometry as MapPoint;
Console.WriteLine("description: {0}", g.Attributes["description"]);
Console.WriteLine("x: {0}, y: {1}", mp.X, mp.Y);
mp.X = mp.X + 100;
mp.Y = mp.Y + 50;
g.Attributes["description"] = "y23z";
T2.SaveEdits();
//T2.Update();

Re: I'll complaint for the wpf binding programming style

yyz — Fri, 01 Apr 2011 03:49:34 GMT

Thanks for your reply. But it is not just that .I want to do more. For example:
I obtain one Feature from the FeatureLayer T2 by Selecting. Then I want to change its location
and attributes. But it can not work. the codes were run, but when I update(refresh) the map,
the location have not changed.
Would you please give some advance about this. Thanks again.
                Graphic g = T2.SelectedGraphics.ToList()[0];
                MapPoint mp = g.Geometry as MapPoint;
                Console.WriteLine("description: {0}", g.Attributes["description"]);
                Console.WriteLine("x: {0}, y: {1}", mp.X, mp.Y);
                mp.X = mp.X + 100;
                mp.Y = mp.Y + 50;
                g.Attributes["description"] = "y23z";
                T2.SaveEdits();
                //T2.Update();

The above code can work correct now .
And now I want to know how to active select command or editVerticles command or others for map ?
I can not achieve that fome code-behind.
Should anybody help me? Thx a lot.

Re: I'll complaint for the wpf binding programming style

JenniferNery — Fri, 01 Apr 2011 14:11:37 GMT

Re: I'll complaint for the wpf binding programming style

yyz — Sat, 02 Apr 2011 05:52:19 GMT

This is related thread: http://forums.arcgis.com/threads/24340-About-Editor_EditCompleted-...

Your replies give me inpiration to solve the problem. Appreciations. And wish you happiness in you work :`)