change GraphicsOverlays Symbol color on click, ArcGIS runtime 100 .net

LY90 — Sun, 12 Dec 2021 04:06:04 GMT

I have a simple GraphicsOverlay symbol, how do I change the color of it on event triggered? My sample code shown below:

public MainPageViewModel() {         
// Create new Map without basemap         
Map = new Map(SpatialReference.Create(102100));         
 // Add the tile basemap only after the map has loaded so it doesn't block the map if offline         
Map.Loaded += (sender, e) => { Map.Basemap = Basemap.CreateImagery(); };          
// Setup the graphics layers         
GraphicsOverlay editGraphics = new GraphicsOverlay();         
editGraphics.Id = "MyGraphics";         
GraphicsOverlays.Add(editGraphics);          
// Add some test graphics          
SimpleMarkerSymbol pointSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle.Circle, SystemColor.Red, 25);         
var point = new MapPoint(0, 0);         
Graphic mapPoint = new Graphic(point, pointSymbol);         
GraphicsOverlays["MyGraphics"].Graphics.Add(mapPoint);  
}     
public ICommand ColorButtonCommand { get; set; }     
public void ColorButtonTapped() {         
// Handle color code goes in here       
// pointSymbol.Color = SystemColor.Gray;      
}     
public bool CanColorButtonTapped()     
{         
return true;     
}

I thought of declaring my SimpleMarkerSymbol pointSymbol variable as a global variable, and simply change color like what I did in my commented out code pointSymbol.Color = SystemColor.Gray, But I think it is a bad approach, there should be a easy and clean way to handle it. Can Anyone help me on this?

topic change GraphicsOverlays Symbol color on click, ArcGIS runtime 100 .net in Developers Questions

change GraphicsOverlays Symbol color on click, ArcGIS runtime 100 .net