chore(qb): emit event on delete

mtsvyatkova · mtsvyatkova · commit 6c04c0f14ea1 · 2022-10-03T07:41:59.000+03:00
diff --git a/projects/igniteui-angular/src/lib/query-builder/query-builder.component.ts b/projects/igniteui-angular/src/lib/query-builder/query-builder.component.ts
@@ -1117,6 +1117,7 @@ export class IgxQueryBuilderComponent extends DisplayDensityBase implements Afte
         if (!expressionItem.parent) {
             this.rootGroup = null;
             this.currentGroup = null;
+            this._expressionTree = null;
             return;
         }
 
@@ -1127,10 +1128,13 @@ export class IgxQueryBuilderComponent extends DisplayDensityBase implements Afte
         const children = expressionItem.parent.children;
         const index = children.indexOf(expressionItem);
         children.splice(index, 1);
+        this._expressionTree = this.createExpressionTreeFromGroupItem(this.rootGroup);
 
         if (!children.length) {
             this.deleteItem(expressionItem.parent);
         }
+
+        this.expressionTreeChange.emit();
     }
 
     private createGroup(operator: FilteringLogic) {

Original file line number	Diff line number	Diff line change
`@@ -1117,6 +1117,7 @@ export class IgxQueryBuilderComponent extends DisplayDensityBase implements Afte`
`1117`	`1117`	`if (!expressionItem.parent) {`
`1118`	`1118`	`this.rootGroup = null;`
`1119`	`1119`	`this.currentGroup = null;`
	`1120`	`+ this._expressionTree = null;`
`1120`	`1121`	`return;`
`1121`	`1122`	`}`
`1122`	`1123`
`@@ -1127,10 +1128,13 @@ export class IgxQueryBuilderComponent extends DisplayDensityBase implements Afte`
`1127`	`1128`	`const children = expressionItem.parent.children;`
`1128`	`1129`	`const index = children.indexOf(expressionItem);`
`1129`	`1130`	`children.splice(index, 1);`
	`1131`	`+ this._expressionTree = this.createExpressionTreeFromGroupItem(this.rootGroup);`
`1130`	`1132`
`1131`	`1133`	`if (!children.length) {`
`1132`	`1134`	`this.deleteItem(expressionItem.parent);`
`1133`	`1135`	`}`
	`1136`	`+`
	`1137`	`+ this.expressionTreeChange.emit();`
`1134`	`1138`	`}`
`1135`	`1139`
`1136`	`1140`	`private createGroup(operator: FilteringLogic) {`