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ShowCoordinatesBehavior Has Black Background

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4
10-04-2010 10:21 AM
RyanCoodey
by
Frequent Contributor
‎10-04-2010 10:21 AM
Where does the ShowCoordinatesBehavior inherit its background color from and how can I change it?  It should be transparent... but I am seeing a back box behind the coordinates...

Thanks!!!
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4 Replies
JenniferNery
by Esri Regular Contributor
Esri Regular Contributor
‎10-04-2010 01:09 PM
I cannot reproduce this. Do you mind sharing more information? Maybe a screenshot? I'm using the sample from our SDK http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#ShowCoordinatesBehavior and tried it with SL4, WPF4, and WPF3.5 projects, and none of them have a Background set to Black (kindly see attached image).  

By default ShowCoordinatesBehavior template has 2 TextBlocks (one with Black Foreground and the other with White Foreground that appears like an outline). This template does not set Background property and it also cannot be modified.
Preview file
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RyanCoodey
by
Frequent Contributor
‎10-04-2010 01:39 PM
Jennifer, Thanks a lot for doing all that testing... I am running a .NET 4 WPF Web Application (XBAP) and I just tried it as a regular WPF application and it displays fine, but as a Web Application (XBAP) it has this black background.   Hmmm, so what is the difference between those two... not sure what I could do to fix it...

Attached a screen shot of the black background.

Thanks a lot for the help!!!
Preview file
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JenniferNery
by Esri Regular Contributor
Esri Regular Contributor
‎10-04-2010 03:03 PM
This seems to be a limitation on WPF Browser Application as discussed in this link http://www.netframeworkdev.com/windows-presentation-foundation-wpf/problem-with-popup-bakground-in-x...

I tried creating a popup outside our API and followed the suggestion of setting AllowsTransparency to False and explicitly setting a Background. However, when Background is set to {x:Null} or Transparent, the background remains black. It only accepted Background when set to "White" or other colors.
   <Grid>
  <ToggleButton x:Name="ShowPopup" Content="ShowPopup" VerticalAlignment="Top" HorizontalAlignment="Center"/>
  <Popup AllowsTransparency="False" PlacementTarget="{Binding ElementName=ShowPopup}" Placement="Relative"  IsOpen="{Binding ElementName=ShowPopup, Path=IsChecked}" Opened="Popup_Opened">
   <Popup.Child>
    <Border Background="{x:Null}">
     <TextBlock Text="Test"/>
    </Border>
   </Popup.Child>
  </Popup>
 </Grid>


Due to this limitation, we also cannot support it at this time.
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RyanCoodey
by
Frequent Contributor
‎10-04-2010 03:51 PM
Well bummer... Doesn't seem to matter if it is a "Full Trust" app either.  Guess I will have to find some other means of showing these coordinates to the user.  I'll try to work out a fixed window and display the coordinates in it using something like: MyMap.ScreenToMap(screenPoint)...

Well thanks a lot for looking into this, I REALLY appriciate it!!!  Thank you!
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