Drawing a line with arrow in web application with C# and silverlight

HusseinSayed

Is there any way to draw a line with arrow at the end or the middle in a web application using C# and Silverlight?

DominiqueBroux

You need either to include the ???ExtendedSymbols??? project in your project or just to reference the ExtendedSymbols dll (others projects are not useful)

Then you can create a line symbol that has an arrow at the end with XAML code like:

<extendedSymbols:ExtendedLineSymbol x:Key="arrowLineSymbol" Fill="Red" >   <extendedSymbols:ExtendedLineSymbol.GeometryTransformer>     <extendedSymbols:ArrowPatternTransformer AtEnd="True" />   </extendedSymbols:ExtendedLineSymbol.GeometryTransformer> </extendedSymbols:ExtendedLineSymbol>

(with xmlns:extendedSymbols="clr-namespace:ExtendedSymbols;assembly=ExtendedSymbols")

Then the symbol can be used in replacement of any line symbol.
For example:

 <esri:GraphicsLayer>     <esri:GraphicsLayer.Renderer>         <esri:SimpleRenderer Symbol="{StaticResource arrowLineSymbol}"/>     </esri:GraphicsLayer.Renderer>       <esri:GraphicsLayer.Graphics >          <esri:Graphic>             <esri:Polyline >                 <esri:Polyline.Paths>                     <esri:PointCollection>                         <esri:MapPoint X="0" Y="51.399" />                         <esri:MapPoint X="2.637" Y="48.865" />                         <esri:MapPoint X="12.568" Y="41.706" />                         <esri:MapPoint X="13.447" Y="52.483" />                         <esri:MapPoint X="21.357" Y="52.160" />                         <esri:MapPoint X="30.322" Y="59.845" />                     </esri:PointCollection>                 </esri:Polyline.Paths>             </esri:Polyline>         </esri:Graphic>     </esri:GraphicsLayer.Graphics> </esri:GraphicsLayer>