Latest Contributions by JoshV

These Binding causes the BAD_PARSER_VALUE. I think you meant to put {Binding Attributes[API]} and {Binding Attributes[Operator]}. Jennifer Both on the same line where TextBlock=?  Can you show me what you mean based on my code?  Thanks ... View more

http://help.arcgis.com/en/webapi/silverlight/help/index.html Look under General Reference/Coordinate system ids Thanks, this worked for me http://resources.esri.com/help/9.3/arcgisserver/apis/rest/pcs.html ... View more

This worked.  http://resources.esri.com/help/9.3/arcgisserver/apis/rest/pcs.html ... View more

That actualy isn't hard. see this: private void MyMap_MouseMove(object sender, MouseEventArgs e)         {             //If you change LayoutRoot to any object that appears on the screen, the spacial             //reference to the coordinates change, so, if you want the map coordinates,             //you can change it to MyMap             mousePosition.Text = string.Format("X: {0}, Y:{1}", e.GetPosition(LayoutRoot).X.ToString(), e.GetPosition(LayoutRoot).Y);             mousePosition.Text = string.Format("X: {0}, Y:{1}", e.GetPosition(MyMap).X.ToString(), e.GetPosition(MyMap).Y);         } This should fix it! Just to be sure, if your map is inside an ScrollViwer or a ChildWindow, this code Won't work well (i tried once, and i'm still trying to fix code for the childwindow) Ok, thanks ... View more

well, I'm still new to silverlight, but in theory this code prevents the error, because the call that overrides the event MouseEnter, MouseMove and MouseLeave is only triggered after the map finishes loading, and, as I understood from your first post, the error ocurred because the map still didn't have an object instance. Hi jonatas- That did work, thanks.  In your MyMap_MouseMove, it doesn't seem to return the actual XY's from the Map.  I'm guessing they are just the page XY's??  do you know how I can fix that? -Thanks ... View more

Hi I have a question on your code.  at  mousePosition.Text I'm getting "mouseposition" does not exist.  Can you offer me some advice on that? Thanks Ok I see that I left that out of my XAML.  So when user loads the web application and they hover over the map before the page loads your code will let the page load without an error occuring?? Regards, ... View more

Hi, I made a Small Application to demonstrate a possible solution to your problem. the Xaml has a Map and a Border with a TextBox that Show the mouse position on the screen or OOB (out of border) if the mouse is out of the map. here's the code: XAML: <UserControl x:Class="MouseOverTest.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"     xmlns:esri="http://schemas.esri.com/arcgis/client/2009"     mc:Ignorable="d" d:DesignWidth="780" d:DesignHeight="480" xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"     xmlns:ei="clr-namespace:Microsoft.Expression.Interactivity.Core;assembly=Microsoft.Expression.Interactions"     xmlns:userControls="clr-namespace:ESRI.ArcGIS.SilverlightMapApp"     xmlns:actions="clr-namespace:ESRI.ArcGIS.SilverlightMapApp.Actions">     <Grid x:Name="LayoutRoot">         <!-- Map Control -->         <esri:Map x:Name="MyMap" Background="White">             <esri:ArcGISTiledMapServiceLayer ID="BaseLayer"           Url="http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer" />         </esri:Map>                 <Border BorderThickness="2" BorderBrush="Black" Height="50" Width="100" Margin="12,418,668,12">             <TextBlock Name="mousePosition"/>         </Border>             </Grid> </UserControl> CS: using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Windows; using System.Windows.Browser; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Markup; using System.Windows.Shapes; using System.ComponentModel; using ESRI.ArcGIS.Client; using System.Windows.Controls.Primitives; namespace MouseOverTest {     public partial class MainPage : UserControl     {         public MainPage()         {             InitializeComponent();             MyMap.Loaded += new RoutedEventHandler(MyMap_Loaded);         }         private void MyMap_Loaded(object sender, RoutedEventArgs e)         {             //choose what's best for your case             MyMap.MouseEnter += new MouseEventHandler(MyMap_MouseEnter);             MyMap.MouseMove += new MouseEventHandler(MyMap_MouseMove);             MyMap.MouseLeave += new MouseEventHandler(MyMap_MouseLeave);         }         private void MyMap_MouseEnter(object sender, MouseEventArgs e)         {             mousePosition.Text = string.Format("OOB");         }         private void MyMap_MouseMove(object sender, MouseEventArgs e)         {             mousePosition.Text = string.Format("X: {0}, Y:{1}", e.GetPosition(LayoutRoot).X.ToString(), e.GetPosition(LayoutRoot).Y);         }         private void MyMap_MouseLeave(object sender, MouseEventArgs e)         {             mousePosition.Text = string.Format("OOB");         }     } } I Hope this is useful XD Hi I have a question on your code.  at  mousePosition.Text I'm getting "mouseposition" does not exist.  Can you offer me some advice on that? Thanks ... View more

Ok I see what the problem is now.  I'm getting an Object Reference not set to an instance (MyMap_MouseOver) due to the users mouse being on the map as it loads.  How can I prevent this error from occuring? Thanks, ... View more

Please take a look at the following links to see how you can use hierarchical data bindings in a tree view control: http://blogs.silverlight.net/blogs/justinangel/archive/2008/11/18/silverlight-toolkit-treeview-treeviewitem-amp-hierarchaldatatemplate.aspx http://geekswithblogs.net/tkokke/archive/2009/06/29/styling-a-treeview-in-silverlight-and-blend-3.aspx And for data bindings, you should use {Binding ElementName=MyMap, Path=Layers} for the root node(s) and {Binding ElementName=MyMap, Path=Layers.[1].Layers} for your group layer. Hope this helps. Hi Ali-  Any chance I can create/add this tree view using just Visual Studio?  This looks promising. Regards, -Josh ... View more

It's controlled by the MinimumResolution of the map. We can set it to a low value to allow more zooming in (but you'll eventually get no data from a zoom level). Thanks, that worked ... View more