Fix dateRange cell

src/app/components/tableComponents/date-range-cell/date-range-cell.component.html

@@ -9,7 +9,7 @@
       matInput
       placeholder="Startdatum"
       [matDatepicker]="fromPicker"
-      [value]="from"
+      [value]="stringToDate(from)"
       disabled
       formControlName="from"
       (dateChange)="startDateChange($event)"
@@ -33,7 +33,7 @@
       matInput
       placeholder="Enddatum"
       [matDatepicker]="toPicker"
-      [value]="to"
+      [value]="stringToDate(to)"
       disabled
       formControlName="to"
       (dateChange)="endDateChange($event)"

src/app/components/tableComponents/date-range-cell/date-range-cell.component.ts

@@ -64,11 +64,11 @@ export class DateRangeCellComponent implements OnInit {
   }
 
   checkIfDateRangeIsValid() {
-    if (this.required && this.from == null) {
+    if (this.required && !this.from) {
       this.setRangeError(true);
       return;
     }
-    if (this.to == null || this.from == null) {
+    if (!this.to || !this.from) {
       this.setRangeError(false);
       return;
     }
@@ -97,4 +97,9 @@ export class DateRangeCellComponent implements OnInit {
     }
     return new Date(date).toLocaleDateString();
   }
+
+  stringToDate(dateString: string): Date {
+    if (!dateString) return null;
+    return new Date(dateString) || null;
+  }
 }