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silverlightxamluser-controlsesri

Unhandled Error in Silverlight Application Code: 4004 System.ArgumentException:

I am developing a esri map project on silverlight. When i add custom user control as element layer, getting that error from browser:

Line: 56
Error: Unhandled Error in Silverlight Application 
Code: 4004    
Category: ManagedRuntimeError       
Message: System.ArgumentException: 
Parameter name: height
   at System.Windows.Rect..ctor(Double x, Double y, Double width, Double height)
   at ESRI.ArcGIS.Client.LayerCanvas.ArrangeOverride(Size finalSize)
   at System.Windows.FrameworkElement.ArrangeOverride(IntPtr nativeTarget, Single inWidth, Single inHeight, Single& outWidth, Single& outHeight)

This is weird, because i didnt write any code or something. And my map service works. i think the problem occurs at parsing xaml files. So;

mainpage.xaml is:

<UserControl x:Class="tbl.MainPage"
    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"
    mc:Ignorable="d"
    xmlns:esri1="http://schemas.esri.com/arcgis/client/2009"
    xmlns:lcl="clr-namespace:tbl"
    d:DesignHeight="600" d:DesignWidth="800">

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

        <esri1:Map x:Name="esrimap">
            <esri1:ArcGISTiledMapServiceLayer Url="http://.../ArcGIS/rest/services/.../MapServer">
            </esri1:ArcGISTiledMapServiceLayer>

            <esri1:ElementLayer>
                <lcl:SilverlightControl1 esri1:ElementLayer.Envelope="495942.700915659,4509916.68364022,495942.700915659,4509916.683614022"></lcl:SilverlightControl1>
            </esri1:ElementLayer>

        </esri1:Map>
    </Grid>


</UserControl>

and silverlightcontrol.xaml: 

<UserControl x:Class="tbl.SilverlightControl1"
    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"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">

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

    </Grid>
</UserControl>

Can anybody help me?

Solution

  • This is a bug in the ESRI control's ArrangeOverride method. It is attempting to create a System.Windows.Rect with a negative height.

    The 4-argument constructor for System.Windows.Rect only throws an ArgumentException if the width and/or height are negative. I had a quick play with this structure and can confirm this. I can also confirm that this constructor does not throw an exception if the height is NaN, which surprised me.