1 files changed, 5 insertions, 1 deletions
diff --git a/src/fields/BasicField.ts b/src/fields/BasicField.ts
index 91977b243..a92c4a236 100644
--- a/src/fields/BasicField.ts
+++ b/src/fields/BasicField.ts
@@ -32,7 +32,7 @@ export abstract class BasicField<T> extends Field {
             return;
         }
         let oldValue = this.data;
-        this.data = value;
+        this.setData(value);
         UndoManager.AddEvent({
             undo: () => this.Data = oldValue,
             redo: () => this.Data = value
@@ -40,6 +40,10 @@ export abstract class BasicField<T> extends Field {
         Server.UpdateField(this);
     }
 
+    protected setData(value: T) {
+        this.data = value;
+    }
+
     @action
     TrySetValue(value: any): boolean {
         if (typeof value == typeof this.data) {