chore(advance-filtering): restore initial state

Author: georgianastasov

projects/igniteui-angular/src/lib/grids/toolbar/grid-toolbar-advanced-filtering.component.html

@@ -7,5 +7,5 @@
         <ng-content></ng-content>
     </span>
     <span *ngIf="!ref.childNodes.length">{{ grid?.resourceStrings.igx_grid_toolbar_advanced_filtering_button_label }}</span>
-    <span class="igx-adv-filter--column-number" *ngIf="numberOfColumns > 0"> ({{ numberOfColumns }}) </span>
+    <span class="igx-adv-filter--column-number" *ngIf="grid?.advancedFilteringExpressionsTree"> ({{ numberOfColumns }}) </span>
 </button>

projects/igniteui-angular/src/lib/grids/toolbar/grid-toolbar-advanced-filtering.component.ts

@@ -47,26 +47,6 @@ export class IgxGridToolbarAdvancedFilteringComponent implements AfterViewInit {
         this.grid?.advancedFilteringExpressionsTreeChange.subscribe(filteringTree => {
             this.numberOfColumns = this.extractUniqueFieldNamesFromFilterTree(filteringTree).length;
         });
-        this.grid?.filteringExpressionsTreeChange.subscribe(() => {
-            if (this.grid.advancedFilteringExpressionsTree) {
-                const dataKeys = Object.keys(this.grid.data[0]);
-                const filteringOperands = this.grid.advancedFilteringExpressionsTree.filteringOperands;
-
-                const allOperandsPresent = filteringOperands.every(operand => {
-                    if (operand instanceof FilteringExpressionsTree) {
-                        // Recursively check nested filtering trees
-                        return this.checkFilteringOperands(operand, dataKeys);
-                    } else {
-                        return dataKeys.includes(operand.fieldName);
-                    }
-                });
-
-                if (!allOperandsPresent) {
-                    this.grid.advancedFilteringExpressionsTree = this.grid.filteringExpressionsTree;
-                    this.numberOfColumns = 0;
-                }
-            }
-        });
     }
 
     /**
@@ -88,15 +68,4 @@ export class IgxGridToolbarAdvancedFilteringComponent implements AfterViewInit {
         });
         return [...new Set(columnNames)];
     }
-
-    private checkFilteringOperands(filteringTree: FilteringExpressionsTree, dataKeys: string[]): boolean {
-        return filteringTree.filteringOperands.every(operand => {
-            if (operand instanceof FilteringExpressionsTree) {
-                // Recursively check nested filtering trees
-                return this.checkFilteringOperands(operand, dataKeys);
-            } else {
-                return dataKeys.includes(operand.fieldName);
-            }
-        });
-    }
 }