feat(tree-grid): update flat data transaction, #2921

_useInUndo flag added to IgxTreeGrid. When cascading delete rows in flat data set this flag to false and push add it this way in transaction. This allow undo to skip this transactions.
IgniteUI · Nov 14, 2018 · 0e89cf3 · 0e89cf3
1 parent fee032f
commit 0e89cf3
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diff --git a/projects/igniteui-angular/src/lib/grids/tree-grid/tree-grid.component.ts b/projects/igniteui-angular/src/lib/grids/tree-grid/tree-grid.component.ts
@@ -57,6 +57,7 @@ let NEXT_ID = 0;
 })
 export class IgxTreeGridComponent extends IgxGridBaseComponent {
     private _id = `igx-tree-grid-${NEXT_ID++}`;
+    private _useInUndoStack = true;
 
     /**
      * An @Input property that sets the value of the `id` attribute. If not provided it will be automatically generated.
@@ -430,7 +431,9 @@ export class IgxTreeGridComponent extends IgxGridBaseComponent {
                 if (treeRecord && treeRecord.children && treeRecord.children.length > 0) {
                     for (let i = 0; i < treeRecord.children.length; i++) {
                         const child = treeRecord.children[i];
+                        this._useInUndoStack = false;
                         super.deleteRowById(child.rowID);
+                        this._useInUndoStack = true;
                     }
                 }
             }

diff --git a/projects/igniteui-angular/src/lib/services/transaction/igx-hierarchical-transaction.ts b/projects/igniteui-angular/src/lib/services/transaction/igx-hierarchical-transaction.ts
@@ -7,6 +7,13 @@ import { IgxTransactionService } from '..';
 export class IgxHierarchicalTransactionService<T extends HierarchicalTransaction, S extends HierarchicalState>
     extends IgxTransactionService<T, S> {
 
+
+    public add(transaction: T, recordRef?: any, useInUndo = true): void {
+        const states = this._isPending ? this._pendingStates : this._states;
+        this.verifyAddedTransaction(states, transaction, recordRef);
+        super.addTransaction(transaction, states, recordRef, useInUndo);
+    }
+
     public getAggregatedChanges(mergeChanges: boolean): T[] {
         const result: T[] = [];
         this._states.forEach((state: S, key: any) => {