#2

packages/datalib/src/GridDisplay.ts

@@ -54,6 +54,7 @@ export abstract class GridDisplay {
   sortable = false;
   filterable = false;
   editable = false;
+  isLoadedCorrectly = true;
 
   setColumnVisibility(uniquePath: string[], isVisible: boolean) {
     const uniqueName = uniquePath.join('.');

packages/datalib/src/TableGridDisplay.ts

@@ -29,6 +29,11 @@ export class TableGridDisplay extends GridDisplay {
     this.table = this.cache.tables.basetbl;
     if (!this.table) {
       this.loadTableIntoCache('basetbl', tableName);
+      this.isLoadedCorrectly = false;
+    } else {
+      if (!this.table.columns || this.table.columns.length == 0) {
+        this.isLoadedCorrectly = false;
+      }
     }
 
     this.columns = this.getDisplayColumns(this.table, []);