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Highlight multiple shapes when clicked

#1

Currently my map will highlight an object/shape on the map when the user clicks on it. But when the user clicks on a second shape, the first shape is no longer highlighted and the second shape is. What I would like to have happen is if both the first and second shapes are both highlighted. Essentially highlighting multiple clicked shapes. So is there a way to add the second to the highlight layer of the first, without clearing it out?

#2

Hi Chad,

Attached show how to highlight multiple shapes. Please check it out.

HighlightMultipleShapes.zip (1.6 MB)

Thanks,
Peter

#3

Yup, thank you Peter.

#4

Hi Chad,

You’re welcome!

Thanks,
Peter

#5

One last thing on this. If the user clicks on a feature that is already selected/highlighted, how can I remove the clicked feature from the highLightLayer?

#6

Got it. Had to change to the following. If you know of anything more elegant please let me know.

foreach (Feature feature in selectedFeatures)
{
if(highLightLayer.InternalFeatures.Contains(feature.Id))
{
highLightLayer.InternalFeatures.MoveToBottom(feature.Id);
highLightLayer.InternalFeatures.RemoveAt(0);
}
else
{
highLightLayer.InternalFeatures.Add(feature.Id, feature);
}
}

#7

Hi Chad,

Please try the following code:

 foreach (Feature feature in selectedFeatures)
        {
            if (highLightLayer.InternalFeatures.Contains(feature.Id))
            {
                highLightLayer.InternalFeatures.Remove(feature.Id);
            }
            else
            {
                highLightLayer.InternalFeatures.Add(feature.Id, feature);
            }
        }

Thanks,
Peter