check self for null

DotSpatial · Dec 4, 2018 · 9affc6a · 9affc6a
1 parent ca7ca8f
commit 9affc6a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Source/DotSpatial.Symbology/LegendItemExt.cs b/Source/DotSpatial.Symbology/LegendItemExt.cs
@@ -21,7 +21,7 @@ public static class LegendItemExt
         /// <returns>The found member.</returns>
         public static ILegendItem BottomMember(this ILegendItem self)
         {
-            if (self.LegendItems != null && self.LegendItems.Any())
+            if (self?.LegendItems != null && self.LegendItems.Any())
             {
                 var items = self.LegendItems.ToList();