Fix: Rescale pool issue with toggling between autoscale and fixed size (#1755)

Author: timotheeguerin

CHANGELOG.md

@@ -4,6 +4,7 @@
 *  Task exit code filter switch between include and exclude error [\#1687](https://github.com/Azure/BatchExplorer/issues/1687)
 *  Error in pool container picker with null registries [\#1690](https://github.com/Azure/BatchExplorer/issues/1690)
 *  Can't view content of prep/release task files [\#1692](https://github.com/Azure/BatchExplorer/issues/1692)
+*  Issue when rescaling a pool and toggling autoscale [\#1751](https://github.com/Azure/BatchExplorer/issues/1751)
 
 # 0.18.3
 

app/components/pool/action/scale/pool-scale-picker.component.ts

@@ -88,12 +88,12 @@ export class PoolScalePickerComponent implements OnDestroy, ControlValueAccessor
         };
     }
 
-    public changeScaleModeTab(event) {
-        this.selectedModeTab = event.index;
+    public changeScaleModeTab(index: number) {
+        this.selectedModeTab = index;
 
-        if (event.index === 0) {
+        if (index === 0) {
             this.form.patchValue({ enableAutoScale: false });
-        } else if (event.index === 1) {
+        } else if (index === 1) {
             this.form.patchValue({ enableAutoScale: true });
         }
         this.form.controls.autoScaleFormula.updateValueAndValidity();

app/components/pool/action/scale/pool-scale-picker.html

@@ -1,5 +1,5 @@
 <div [formGroup]="form">
-    <mat-tab-group class="form-tabs" [selectedIndex]="selectedModeTab" (selectChange)="changeScaleModeTab($event)" [@.disabled]="true">
+    <mat-tab-group class="form-tabs" [selectedIndex]="selectedModeTab" (selectedIndexChange)="changeScaleModeTab($event)" [@.disabled]="true">
         <mat-tab label="Fixed">
             <div class="grow">
                 <div class="gcol">