From 9880ec14813edd2d9e44c6654f43f1e2839ce10a Mon Sep 17 00:00:00 2001
From: Aliullov Vlad <vladislav.aliullov@devexpress.com>
Date: Mon, 16 Sep 2024 17:26:28 +0400
Subject: [PATCH] Fix T1247485 - Scheduler - "Cannot read properties of null
 (reading 'nextSibling')" error occurs if dateCellTemplate has more than one
 root element

+ WIP
---
 packages/devextreme-vue/src/core/templates-manager.ts | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/packages/devextreme-vue/src/core/templates-manager.ts b/packages/devextreme-vue/src/core/templates-manager.ts
index 84717f9ca5b5..2f3b84ccf3b3 100644
--- a/packages/devextreme-vue/src/core/templates-manager.ts
+++ b/packages/devextreme-vue/src/core/templates-manager.ts
@@ -79,20 +79,25 @@ class TemplatesManager {
 
         const element = mountedTemplate.$el as HTMLElement;
         container.removeChild(placeholder);
+
+        let hasOnlyText = true;
+
         while (placeholder.firstChild) {
+          hasOnlyText = hasOnlyText && placeholder.firstChild.nodeType !== 1;
           container.appendChild(placeholder.firstChild);
         }
+
         domAdapter.setClass(element, DX_TEMPLATE_WRAPPER_CLASS, true);
 
-        if (element.nodeType === Node.TEXT_NODE) {
+        if (hasOnlyText) {
           const removalListener = document.createElement(container.nodeName === 'TABLE' ? 'tbody' : 'span');
           removalListener.style.display = 'none';
-          /* container.appendChild(removalListener);
+           container.appendChild(removalListener);
            one(
              removalListener,
              DX_REMOVE_EVENT,
              mountedTemplate.$.appContext.app.unmount.bind(mountedTemplate),
-           );*/
+           );
         } else {
            one(
             element,