From bedc2619d1178acb983db45a854a174c382263c9 Mon Sep 17 00:00:00 2001
From: jojohoch <joachim.hoch@iqb.hu-berlin.de>
Date: Wed, 2 Feb 2022 13:14:04 +0100
Subject: [PATCH] Fix `ExpressionChangedAfterItHasBeenCheckedError`

---
 projects/common/ui-elements/slider/slider.component.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/projects/common/ui-elements/slider/slider.component.ts b/projects/common/ui-elements/slider/slider.component.ts
index 6132da496..0a25f5dcc 100644
--- a/projects/common/ui-elements/slider/slider.component.ts
+++ b/projects/common/ui-elements/slider/slider.component.ts
@@ -71,7 +71,8 @@ import { FormElementComponent } from '../../directives/form-element-component.di
         <div class="arrow-line"></div>
         <div class="arrow-head"></div>
       </div>
-      <div [style.display]="'flex'"
+      <div *ngIf="valueMax && valueMin"
+           [style.display]="'flex'"
            [style.flex-direction]="'column'"
            [style.height.%]="100"
            [style.margin-right.px]="elementModel.barStyle ? valueMax.offsetWidth/2 - 8 : valueMax.offsetWidth"
-- 
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