From b265d7642d2b62fd063fa38b555adb810d3f630d Mon Sep 17 00:00:00 2001
From: dmlvr <lvr@dmlvr.com>
Date: Fri, 28 Nov 2025 10:33:02 +0200
Subject: [PATCH 1/2] remove readonly flag for updateValueTimeout prop

---
 packages/devextreme/js/ui/data_grid.d.ts | 2 +-
 packages/devextreme/ts/dx.all.d.ts       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/devextreme/js/ui/data_grid.d.ts b/packages/devextreme/js/ui/data_grid.d.ts
index ba9e6423b8a3..3becf5022ef2 100644
--- a/packages/devextreme/js/ui/data_grid.d.ts
+++ b/packages/devextreme/js/ui/data_grid.d.ts
@@ -588,7 +588,7 @@ export type EditorPreparingEvent<TRowData = any, TKey = any> = EventInfo<dxDataG
   /** @docid _ui_data_grid_EditorPreparingEvent.setValue */
   readonly setValue?: any;
   /** @docid _ui_data_grid_EditorPreparingEvent.updateValueTimeout */
-  readonly updateValueTimeout?: number;
+  updateValueTimeout?: number;
   /** @docid _ui_data_grid_EditorPreparingEvent.width */
   readonly width?: number;
   /** @docid _ui_data_grid_EditorPreparingEvent.disabled */
diff --git a/packages/devextreme/ts/dx.all.d.ts b/packages/devextreme/ts/dx.all.d.ts
index eb2a12ea06ba..414bdec467d5 100644
--- a/packages/devextreme/ts/dx.all.d.ts
+++ b/packages/devextreme/ts/dx.all.d.ts
@@ -12776,7 +12776,7 @@ declare module DevExpress.ui {
       /**
        * [descr:_ui_data_grid_EditorPreparingEvent.updateValueTimeout]
        */
-      readonly updateValueTimeout?: number;
+      updateValueTimeout?: number;
       /**
        * [descr:_ui_data_grid_EditorPreparingEvent.width]
        */

From fe104a127feb2532163f72172f860de255098280 Mon Sep 17 00:00:00 2001
From: dmlvr <lvr@dmlvr.com>
Date: Fri, 28 Nov 2025 17:47:33 +0200
Subject: [PATCH 2/2] update updateValueTimeout for other handler in DataGrid,
 TreeList, FilterBuilder

---
 packages/devextreme/js/ui/data_grid.d.ts      | 2 +-
 packages/devextreme/js/ui/filter_builder.d.ts | 2 +-
 packages/devextreme/js/ui/tree_list.d.ts      | 2 +-
 packages/devextreme/ts/dx.all.d.ts            | 6 +++---
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/packages/devextreme/js/ui/data_grid.d.ts b/packages/devextreme/js/ui/data_grid.d.ts
index 3becf5022ef2..355fd5a2d991 100644
--- a/packages/devextreme/js/ui/data_grid.d.ts
+++ b/packages/devextreme/js/ui/data_grid.d.ts
@@ -554,7 +554,7 @@ export type EditorPreparedEvent<TRowData = any, TKey = any> = EventInfo<dxDataGr
   /** @docid _ui_data_grid_EditorPreparedEvent.setValue */
   readonly setValue?: any;
   /** @docid _ui_data_grid_EditorPreparedEvent.updateValueTimeout */
-  readonly updateValueTimeout?: number;
+  updateValueTimeout?: number;
   /** @docid _ui_data_grid_EditorPreparedEvent.width */
   readonly width?: number;
   /** @docid _ui_data_grid_EditorPreparedEvent.disabled */
diff --git a/packages/devextreme/js/ui/filter_builder.d.ts b/packages/devextreme/js/ui/filter_builder.d.ts
index 73b29e2c56db..a8423c7c3030 100644
--- a/packages/devextreme/js/ui/filter_builder.d.ts
+++ b/packages/devextreme/js/ui/filter_builder.d.ts
@@ -72,7 +72,7 @@ export type EditorPreparedEvent = EventInfo<dxFilterBuilder> & {
     /** @docid _ui_filter_builder_EditorPreparedEvent.filterOperation */
     readonly filterOperation?: string;
     /** @docid _ui_filter_builder_EditorPreparedEvent.updateValueTimeout */
-    readonly updateValueTimeout?: number;
+    updateValueTimeout?: number;
     /** @docid _ui_filter_builder_EditorPreparedEvent.width */
     readonly width?: number;
     /** @docid _ui_filter_builder_EditorPreparedEvent.readOnly */
diff --git a/packages/devextreme/js/ui/tree_list.d.ts b/packages/devextreme/js/ui/tree_list.d.ts
index 9dd9d3b7455f..f14df2b6f2fb 100644
--- a/packages/devextreme/js/ui/tree_list.d.ts
+++ b/packages/devextreme/js/ui/tree_list.d.ts
@@ -345,7 +345,7 @@ export type EditorPreparedEvent<TRowData = any, TKey = any> = EventInfo<dxTreeLi
     /** @docid _ui_tree_list_EditorPreparedEvent.setValue */
     readonly setValue?: any;
     /** @docid _ui_tree_list_EditorPreparedEvent.updateValueTimeout */
-    readonly updateValueTimeout?: number;
+    updateValueTimeout?: number;
     /** @docid _ui_tree_list_EditorPreparedEvent.width */
     readonly width?: number;
     /** @docid _ui_tree_list_EditorPreparedEvent.disabled */
diff --git a/packages/devextreme/ts/dx.all.d.ts b/packages/devextreme/ts/dx.all.d.ts
index 414bdec467d5..98426e281139 100644
--- a/packages/devextreme/ts/dx.all.d.ts
+++ b/packages/devextreme/ts/dx.all.d.ts
@@ -12724,7 +12724,7 @@ declare module DevExpress.ui {
       /**
        * [descr:_ui_data_grid_EditorPreparedEvent.updateValueTimeout]
        */
-      readonly updateValueTimeout?: number;
+      updateValueTimeout?: number;
       /**
        * [descr:_ui_data_grid_EditorPreparedEvent.width]
        */
@@ -18300,7 +18300,7 @@ declare module DevExpress.ui {
         /**
          * [descr:_ui_filter_builder_EditorPreparedEvent.updateValueTimeout]
          */
-        readonly updateValueTimeout?: number;
+        updateValueTimeout?: number;
         /**
          * [descr:_ui_filter_builder_EditorPreparedEvent.width]
          */
@@ -30940,7 +30940,7 @@ declare module DevExpress.ui {
       /**
        * [descr:_ui_tree_list_EditorPreparedEvent.updateValueTimeout]
        */
-      readonly updateValueTimeout?: number;
+      updateValueTimeout?: number;
       /**
        * [descr:_ui_tree_list_EditorPreparedEvent.width]
        */