Latest Contributions by DominiqueBroux

Setting a Width to your TextBox should force the Text to wrap to multi lines when the text length is greater than the textbox width. ... View more

Ohh yes. Looks like I got lost between C# and VB syntax. Sorry about that. ... View more

The syntax to wire up an handler to an event is '+=' not '=' featureLayer.UpdateCompleted += Sub(snd, evt) ...... ... View more

You can use ArcGISDynamicMapServiceLayer.CreateDynamicLayerInfosFromLayerInfos in order to get the renderers defined at the server side. Using that as starting point will avoid you to create class breaks renderer by code. ... View more

I eventually got it:) Looks like you are in a case between rFlat' and 'Tree'. After further investigations, my suggestion to do it by code on event Legend.Refreshed is not working because we can't remove the map layers from the legend (else the legend won't be updated when layer or sublayers visibility change). The workaround might be to change the legend template and start the treeview hierarchy one level down. <esri:Legend.Template>     <ControlTemplate TargetType="esri:Legend"                         xmlns:toolkit="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls"                         xmlns:sdk="clr-namespace:System.Windows;assembly=System.Windows.Controls">         <toolkit:TreeView   ItemsSource="{Binding LayerItemsSource[0].LayerItemsSource, RelativeSource={RelativeSource TemplatedParent}}"                             Background="{TemplateBinding Background}"                             Foreground="{TemplateBinding Foreground}"                             BorderBrush="{TemplateBinding BorderBrush}"                             BorderThickness="{TemplateBinding BorderThickness}"                                   Padding="{TemplateBinding Padding}"                             HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"                             VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"                >             <toolkit:TreeView.ItemTemplate>                 <sdk:HierarchicalDataTemplate ItemsSource="{Binding LayerItemsSource}" >                     <ContentPresenter Content="{Binding}" ContentTemplate="{Binding Template}" />                 </sdk:HierarchicalDataTemplate>             </toolkit:TreeView.ItemTemplate>             <toolkit:TreeView.ItemContainerStyle>                 <Style TargetType="toolkit:TreeViewItem">                     <Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}"/>                     <Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}"/>                 </Style>             </toolkit:TreeView.ItemContainerStyle>          </toolkit:TreeView>     </ControlTemplate></esri:Legend.Template> Note how is set the ItemsSource of the TreeView : ItemsSource="{Binding LayerItemsSource[0].LayerItemsSource, RelativeSource={RelativeSource TemplatedParent}} Instead of starting the treeview hierarchy from LayerItemsSource, we start it from the sublayers of the first layer (that supposes there is only one layer in the legend but it's your case). Hope this helps. ... View more

Issue #1: Look at the attached image. I need the groups : USAID-related, Political/Administrative, Infrastructure, Israel-related to behave like TreeView (i.e. collapse/visible). Only the root element: USAID_Layers is redundant. I understood that. But please try the Flat mode which looks to me a better starting point for your need. You have just to change LayerItemsMode="Flat" in your XAML code. ... View more

:)Thank you very very much for both Nathalie and Dominique. It's great topic. And i was wondered if i can show the chart at the same place of the selected polygon . If you need one chart by polygon we might look at that sample that may be closer of your need. Here we display only one chart showing all graphics or group of graphics in the same chart. I am not sure it makes sense that this chart overrides the selected graphics. But anyway it could be done by setting the position of the chart by code instead of using a fixed position (to do each time the selection changes). Another, if you can explain this object: DataContext = graphicsLayer.Graphics.GroupBy(graphic => (string)graphic.Attributes["NAME"], (subregion, graphics) => new AttributeGroup { Key = subregion, Count = graphics.Count(), Sum = graphics.Select(g => (int)g.Attributes["ELEVATION"]).Sum(), Graphics = graphics }).ToArray(); NAME being an unique identifier, a group by NAME is not the best sample since it's just returning the complete list of graphics. The initial sample was: // Group by sub region             Groups1  = graphicsLayer.Graphics.GroupBy(graphic => (string)graphic.Attributes["SUB_REGION"],                             (key, graphics) => new AttributeGroup                             {                                 Key      = key,                                 Count    = graphics.Count(),                                 Sum      = graphics.Select(g => (int)g.Attributes["POP2000"]).Sum(),                                 Graphics = graphics                             }).ToArray(); Here we group the graphics by SUB_REGION (by using the keySelector : (string)graphic.Attributes["SUB_REGION"]) and for each SUB_REGION we return an AttributeGroup containing mainly the SubRegion (Key) and the population of the subregion (Sum). This list of AttributGroup is used as ItemsSource for the chart with the SubRegion as independent value and the population as dependent value. So we get a chart showing the population by subregion. Hope this helps. ... View more

From API version 3.0 and server 10.1, you can change the symbology dynamically (if the functionality has been enabled at the server side). There is a sample here : http://resources.arcgis.com/en/help/silverlight-api/samples/start.htm#DynamicLayer Using that, you might change by code the symbology depending on the layers that are turned on (though will need some development) ... View more

Hi Dominique, As to issue #1, I thought to do it in Legend.Refreshed event but I didn't know how to catch the root element in order to remove it. I need to remove it, not to collapse it. As to issue #2, I will check it. Do you have a sample of changing LegendItemTemplate ? I looked at your wonderful site (http://broux.dominique.free.fr/Silverlight/InteractiveSDK/Default.htm#LegendTOC) but couldn't find one. Thanks a lot, Miri Issue#1 : I still don't understand why 'Flat' mode is not working for you. Issue#2 : Example of LegendItemTemplate skrinking the spaces between items and displaying image after the text: <esri:Legend.LegendItemTemplate>   <DataTemplate>     <StackPanel Orientation="Horizontal" Margin="0,-3">       <TextBlock Text="{Binding Label}" Margin="5,0" VerticalAlignment="Center" MinWidth="80" />       <Image Source="{Binding ImageSource}" HorizontalAlignment="Center" VerticalAlignment="Center"  Stretch="None" MinWidth="20" Margin="0,-1" />     </StackPanel>   </DataTemplate> </esri:Legend.LegendItemTemplate> ... View more

I agree with you that might be a built in function but strangly it's the first time I heard about such need. Anyway, nice customization. Thanks for sharing your code. ... View more

Likely there is a syntax error in your code. You should be able to wire up an handler to the event UpdateCompleted. How does your code look? ... View more