added paid attributes to Reward

src/app/broker-reward/broker-reward.component.html

   [data]="gridView"
   (groupChange)="groupChange($event)"
 >
-  <kendo-grid-column field="Id"></kendo-grid-column>
+  <kendo-grid-column field="Id" [groupable]="false"></kendo-grid-column>
 
-  <kendo-grid-column field="Amount">
+  <kendo-grid-column field="Amount" [groupable]="false">
     <ng-template kendoGridCellTemplate let-dataItem>
       <span >{{ dataItem.Amount | currency }}</span>
     </ng-template>
   </kendo-grid-column>
-  <kendo-grid-column field="Description"></kendo-grid-column>
+  <kendo-grid-column field="Description" title="(∑) Description" ></kendo-grid-column>
 
-  <kendo-grid-column field="Item" title="From Loan"></kendo-grid-column>
-  <kendo-grid-column field="Status" title="Loan Status">
+  <kendo-grid-column field="Item" title="(∑) From Loan"></kendo-grid-column>
+  <kendo-grid-column field="Status" title="(∑) Loan Status">
     <ng-template kendoGridCellTemplate let-dataItem>
       <span *ngIf="dataItem.Status != 'none'" class="badge badge-success">{{dataItem.Status}}</span>
     </ng-template>
   </kendo-grid-column>
 
-  <kendo-grid-column field="Ts" title="Date Rewarded">
+  <kendo-grid-column field="Ts" title="Date Rewarded" [groupable]="false">
     <ng-template kendoGridCellTemplate let-dataItem >
       <div *ngIf="dataItem.Settlement != null" >
         {{  dataItem.Ts | date: 'yyyy-MM-dd' }}
   </kendo-grid-column>
 
 
-  <kendo-grid-column field="PayOutId" title="Payment Record">  </kendo-grid-column>
-
+  <kendo-grid-column field="Paid" title="(∑) Paid">  </kendo-grid-column>
 
 </kendo-grid>

src/app/models/reward-by-user.model.ts

     this.Status = payload.Status || '';
     this.Settlement = new Date(payload.Settlement);
   }
+  get Paid(): boolean{
+    return this.PayOutId > 0 ;
+  }
 }