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A value of type 'ConstrainExtentBehavior' cannot be added to a collection or dictiona

lancechua

i am currently doing a silverlight c# application , on my xaml pages, i try to add the function

<

i:Interaction.Behaviors>               
  <esriBehaviors:ConstrainExtentBehavior ConstrainedExtent="-120,30,-60,60" />            </i:Interaction.Behaviors>

but however it gave me this two errors

The tag 'ConstrainExtentBehavior' does not exist in XML namespace 'clr-namespace:ESRI.ArcGIS.Client.Behaviors;assembly=ESRI.ArcGIS.Client.Behaviors'.
and
A value of type 'ConstrainExtentBehavior' cannot be added to a collection or dictionary of type 'BehaviorCollection'.

could anyone help me to solve this? thanks!

below is my xaml page if needed.

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"    
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"         
   xmlns:d="http://schemas.microsoft.com/expression/blend/2008"    
  xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     xmlns:esriSymbols="clr-namespace:ESRI.ArcGIS.Client.Symbols;assembly=ESRI.ArcGIS.Client"   
 xmlns:esri="clr-namespace:ESRI.ArcGIS.Client;assembly=ESRI.ArcGIS.Client" 
xmlns:esriBehaviors="clr-namespace:ESRI.ArcGIS.Client.Behaviors;assembly=ESRI.ArcGIS.Client.Behaviors"
   xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"     mc:Ignorable="d"     d:DesignHeight="300" d:DesignWidth="400"               > 

<Grid x:Name="LayoutRoot" Background="White">     

<esri:Map x:Name="MyMap" Background="White"    >    
         
 <esri:Map.Layers>        

<esri:ArcGISTiledMapServiceLayer ID="StreetMapLayer"    
                   Url="http://www.onemap.sg/arcgis/rest/services/Basemap/MapServer"/>                 <esri:GraphicsLayer ID="MyGraphicsLayer" />                 
    </esri:Map.Layers>    
 
   <i:Interaction.Behaviors>                
<esriBehaviors:ConstrainExtentBehavior ConstrainedExtent="-120,30,-60,60" />            
 </i:Interaction.Behaviors>       
  
</esri:Map>     
</Grid> 
</UserControl>

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JenniferNery

You can look at this SDK sample: http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#ConstrainExtentBehavior

This should be sufficient if you are using v2.0 or latest:

    xmlns:esri="http://schemas.esri.com/arcgis/client/2009"

lancechua

😞 i tired but it still doest work

CameronKuykendall

I was receiving the same error and could not get it to work. I ended up adding the behavior in the code behind.

lancechua

I was receiving the same error and could not get it to work. I ended up adding the behavior in the code behind.

you mean you added the code behind and it worked for you??

lancechua

anyone know how to solve this?

DominiqueBroux

Most generally this error is due to a mix of dll versions.
But sometimes the mix is coming from the local cached dlls.
You can try this:
   - double check the version of your referenced esri dlls
   - clean your solution
   - exit visual studio
   - remove the bin and obj directories under your projects
   - rebuild your solution

Hope this help.

RobertBrodsky

Hi;
Try this

xmlns:ei2="http://schemas.microsoft.com/expression/2010/interactivity"
xmlns:esriBehaviors="clr-namespace:ESRI.ArcGIS.Client.Behaviors;assembly=ESRI.ArcGIS.Client.Behaviors"

JenniferNery

Please try the following SDK sample: http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#ConstrainExtentBehavior. You can also download SDK and see if you get errors.

Note the following XAML namespace declaration:

xmlns:esri="http://schemas.esri.com/arcgis/client/2009"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity">

BijuThavaran

Thanks Dominique .This is the solution which helped fix a similar issue I was having with ShowCoordinatesBehavior.

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