topic Re: Legend TOC from Template, Checkbox not working! in ArcGIS API for Silverlight Questions

Legend TOC from Template, Checkbox not working!

Jitendrudulacaraju — Wed, 03 Oct 2012 21:52:12 GMT

Silverlight 4 application. Made legend templates. The Checkbox on the TOC module is not working. here is the xaml code for the template:

<DataTemplate x:Key="LayerTemplate">
        <StackPanel Margin="0,-1" Orientation="Horizontal">
            <ToolTipService.ToolTip>
                <StackPanel MaxWidth="400">
                    <TextBlock FontWeight="Bold" Text="{Binding Layer.ID}" TextWrapping="Wrap" />
                    <TextBlock FontWeight="Bold" Text="{Binding Label}" TextWrapping="Wrap" />
                    <TextBlock Text="{Binding Description}" TextWrapping="Wrap" />
                    <TextBlock Text="{Binding SubLayerID, StringFormat='SubLayer ID : {0}'}" />

                </StackPanel>
            </ToolTipService.ToolTip>
            <Grid>
                
                <CheckBox Content="{Binding Label}" IsChecked="{Binding IsEnable, Mode=TwoWay}"
                          IsEnabled="{Binding IsInScaleRange,Mode=TwoWay}" IsHitTestVisible="False" VerticalAlignment="Center"/>
            
            </Grid>
        </StackPanel>
    </DataTemplate>

Re: Legend TOC from Template, Checkbox not working!

DominiqueBroux — Thu, 04 Oct 2012 05:31:53 GMT

The Checkbox on the TOC module is not working
<CheckBox Content="{Binding Label}" IsChecked="{Binding IsEnable, Mode=TwoWay}"
IsEnabled="{Binding IsInScaleRange,Mode=TwoWay}" IsHitTestVisible="False" VerticalAlignment="Center"/>

Setting IsHitTestVisible to false prevents any input from the mouse or the keyboard.
Set it to true or keep the default value instead.

Re: Legend TOC from Template, Checkbox not working!

Jitendrudulacaraju — Thu, 04 Oct 2012 13:54:22 GMT

Setting IsHitTestVisible to false prevents any input from the mouse or the keyboard.
Set it to true or keep the default value instead.

Ok , done that. But Now I want to turn on / off several sublayers within a Map service layers from the TOC. I can check/uncheck the button, but it does not change the visibility of the layer.

Re: Legend TOC from Template, Checkbox not working!

DominiqueBroux — Thu, 04 Oct 2012 16:27:01 GMT

Ok , done that. But Now I want to turn on / off several sublayers within a Map service layers from the TOC. I can check/uncheck the button, but it does not change the visibility of the layer.

If your map service is cached, you can't change the visibility of the sublayers. The reason being that the image are pregenerated at the server side with the visibilities defined by the service.
The workaround might be either to create a non cached service or to create one cached service by layer (or by group of layers you want to manage together).
Though, both solutions have performance impacts.

Re: Legend TOC from Template, Checkbox not working!

Jitendrudulacaraju — Fri, 05 Oct 2012 12:31:38 GMT

If your map service is cached, you can't change the visibility of the sublayers. The reason being that the image are pregenerated at the server side with the visibilities defined by the service.
The workaround might be either to create a non cached service or to create one cached service by layer (or by group of layers you want to manage together).
Though, both solutions have performance impacts.

I did make one caches service by layer(s), that is turn off or on all together. But to manage each sub layer individually under a map service layer, I should be serving up a non cached layer, am I right ?

Re: Legend TOC from Template, Checkbox not working!

DominiqueBroux — Fri, 05 Oct 2012 12:35:00 GMT

But to manage each sub layer individually under a map service layer, I should be serving up a non cached layer, am I right ?

Right. Cached map services don't support changing sublayers visibility.