diff --git a/app/client/widgets/DateTextBox.js b/app/client/widgets/DateTextBox.js
index 87c88de8..388bfae8 100644
--- a/app/client/widgets/DateTextBox.js
+++ b/app/client/widgets/DateTextBox.js
@@ -83,7 +83,7 @@ DateTextBox.prototype.buildDom = function(row) {
   let value = row[this.field.colId()];
   return dom('div.field_clip',
     kd.style('text-align', this.alignment),
-    kd.text(() => row._isAddRow() ? '' : this.valueFormatter().format(value()))
+    kd.text(() => row._isAddRow() || this.isDisposed() ? '' : this.valueFormatter().format(value()))
   );
 };
 
diff --git a/app/client/widgets/NTextBox.ts b/app/client/widgets/NTextBox.ts
index 1771366e..12f7a780 100644
--- a/app/client/widgets/NTextBox.ts
+++ b/app/client/widgets/NTextBox.ts
@@ -63,7 +63,9 @@ export class NTextBox extends NewAbstractWidget {
     return dom('div.field_clip',
       dom.style('text-align', this.alignment),
       dom.cls('text_wrapping', this.wrapping),
-      dom.domComputed((use) => use(row._isAddRow) ? null : makeLinks(use(this.valueFormatter).formatAny(use(value), t)))
+      dom.domComputed((use) => use(row._isAddRow) || this.isDisposed() ?
+        null :
+        makeLinks(use(this.valueFormatter).formatAny(use(value), t)))
     );
   }
 }