diff --git a/components/TokenizingTextBox/src/TokenizingTextBox.cs b/components/TokenizingTextBox/src/TokenizingTextBox.cs
index d3972b4e..a90f2dfe 100644
--- a/components/TokenizingTextBox/src/TokenizingTextBox.cs
+++ b/components/TokenizingTextBox/src/TokenizingTextBox.cs
@@ -499,9 +499,17 @@ internal async Task AddTokenAsync(object data, bool? atEnd = null)
             return;
         }
 
-        if (data is string str && TokenItemAdding != null)
+        if (TokenItemAdding != null)
         {
-            var tiaea = new TokenItemAddingEventArgs(str);
+            TokenItemAddingEventArgs tiaea;
+            if (data is string str)
+            {
+                tiaea = new TokenItemAddingEventArgs(str);
+            }
+            else
+            {
+                tiaea = new TokenItemAddingEventArgs(null) { Item = data };
+            }
             await TokenItemAdding.InvokeAsync(this, tiaea);
 
             if (tiaea.Cancel)