Refresh WMS Layer

JayKappy

I am trying to refresh a WMS weather Layer....
its not refreshing....read soemthing about disableCache or something...

What am I missing?

Thanks

<esri:WmsLayer ID="Nexrad" Url="http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi?" Version="1.3.0" 
      SkipGetCapabilities="True" Initialized="Nexrad_Initialized" Opacity=".5"  Visible="True" />

    Private Sub UserControl_Loaded(ByVal sender As Object, ByVal e As RoutedEventArgs)

        ' Timer to refresh Weather
        Dim localTimer As New DispatcherTimer()
        AddHandler localTimer.Tick, AddressOf localTimer_Tick
        localTimer.Interval = New TimeSpan(0, 0, 30)

    End Sub

    Private Sub localTimer_Tick(ByVal sender As Object, ByVal e As EventArgs)
        Dim nexradWmsLayer As ESRI.ArcGIS.Client.Toolkit.DataSources.WmsLayer = Nothing
        nexradWmsLayer = TryCast(MyMap.Layers("Nexrad"), ESRI.ArcGIS.Client.Toolkit.DataSources.WmsLayer)
        nexradWmsLayer.Refresh()
    End Sub

    Private Sub Nexrad_Initialized(ByVal sender As System.Object, ByVal e As System.EventArgs)
        Dim nexradWmsLayer As ESRI.ArcGIS.Client.Toolkit.DataSources.WmsLayer = Nothing
        nexradWmsLayer = TryCast(MyMap.Layers("Nexrad"), ESRI.ArcGIS.Client.Toolkit.DataSources.WmsLayer)

        Dim VisibleWmsLayers As String() = {"nexrad-n0r-900913-m05m"}
        nexradWmsLayer.Layers = VisibleWmsLayers
    End Sub

samulineuvonen

Hello,

Just replying to Jennifers question: Wouldn't refresh be the ideal way to update e.g. the positions of moving vehicles provided in a WMS without having the whole map to be redrawn? Or is there another way to have only one layer update? Or does refresh on one layer always refresh the whole map?

Regards,
Samuli