Merge pull request #7096 from IgniteUI/dkamburov/fix-6973

fix(filtering): Avoid resetting values for number inputs #6973

Author: ChronosSF

projects/igniteui-angular/src/lib/grids/filtering/base/grid-filtering-row.component.ts

@@ -24,7 +24,7 @@ import { IBaseChipEventArgs, IgxChipsAreaComponent, IgxChipComponent } from '../
 import { ExpressionUI } from '../grid-filtering.service';
 import { IgxDropDownItemComponent } from '../../../drop-down/drop-down-item.component';
 import { IgxFilteringService } from '../grid-filtering.service';
-import { KEYS, isEdge } from '../../../core/utils';
+import { KEYS, isEdge, isIE } from '../../../core/utils';
 import { AbsoluteScrollStrategy } from '../../../services/overlay/scroll';
 
 /**
@@ -262,8 +262,11 @@ export class IgxGridFilteringRowComponent implements AfterViewInit {
     public onInput(eventArgs) {
         // The 'iskeyPressed' flag is needed for a case in IE, because the input event is fired on focus and for some reason,
         // when you have a japanese character as a placeholder, on init the value here is empty string .
-        if (isEdge() || this.isKeyPressed || eventArgs.target.value) {
-            this.value = eventArgs.target.value;
+        // There is no need to reset the value on every invalid number input.
+        // The invalid value is converted to empty string input type="number"
+        const target = eventArgs.target;
+        if (isEdge() && target.type !== 'number' || this.isKeyPressed && isIE() || target.value) {
+             this.value = target.value;
         }
     }
 

projects/igniteui-angular/src/lib/grids/grid/grid-filtering-ui.spec.ts

@@ -229,6 +229,13 @@ describe('IgxGrid - Filtering Row UI actions #grid', () => {
 
             expect(grid.rowList.length).toEqual(3);
             verifyFilterRowUI(input, close, reset, false);
+
+            // greater than or equal to with invalid value should not reset filter
+            GridFunctions.openFilterDDAndSelectCondition(fix, 4);
+            GridFunctions.typeValueInFilterRowInput('254..', fix, input);
+
+            expect(grid.rowList.length).toEqual(3);
+            verifyFilterRowUI(input, close, reset, false);
         }));
 
         // UI tests boolean column