diff --git a/typescript/component/treevaluechooser/abstract.treevaluechooser.ts b/typescript/component/treevaluechooser/abstract.treevaluechooser.ts
new file mode 100644
index 000000000..7dae875cd
--- /dev/null
+++ b/typescript/component/treevaluechooser/abstract.treevaluechooser.ts
@@ -0,0 +1,37 @@
+import { _Widget } from "../../core/widget";
+
+export interface _AbstractTreeValueChooser extends _Widget {
+    _valueFormatter: (v: string) => string;
+
+    _initData: (items: any[]) => void;
+
+    _itemsCreator: (options: any, callback: Function) => void;
+
+    _reqDisplayTreeNode: (options: any, callback: Function) => void;
+
+    _reqSelectedTreeNode: (options: any, callback: Function) => void;
+
+    _reqAdjustTreeNode: (options: any, callback: Function) => void;
+
+    _reqInitTreeNode: (options: any, callback: Function) => void;
+    
+    _reqTreeNode: (options: any, callback: Function) => void;
+
+    _getAddedValueNode: (parentValues: any[], selectedValues: any) => any[];
+
+    _getNode: (selectedValues: any, parentValues: any[]) => any;
+
+    _deleteNode: (selectedValues: any, values: any[]) => void;
+
+    _buildTree: (jo: any, values: any) => void;
+
+    _isMatch: (parentValues: any, value: any, keyword: any) => boolean;
+
+    _getTreeNode: (parentValues: any, v: any) => any;
+
+    _getChildren: (parentValues: any) => any;
+
+    _getAllChildren: (parentValues: any) => any;
+
+    _getChildCount: (parentValues: any) => number;
+}
diff --git a/typescript/index.ts b/typescript/index.ts
index 7c04aaf23..e787695c8 100644
--- a/typescript/index.ts
+++ b/typescript/index.ts
@@ -33,6 +33,7 @@ import { _OB } from "./core/ob";
 import { _Widget, _WidgetStatic } from "./core/widget";
 import { _Layout } from "./core/wrapper/layout";
 import { _HTapeLayout, _VTapeLayout } from "./core/wrapper/layout/layout.tape";
+import { _AbstractTreeValueChooser } from "./component/treevaluechooser/abstract.treevaluechooser";
 
 
 type ClassConstructor<T extends {}> = T & {
@@ -76,6 +77,7 @@ export interface BI extends _func, _i18n, _base {
     Layout: ClassConstructor<_Layout>;
     HTapeLayout: ClassConstructor<_HTapeLayout>;
     VTapeLayout: ClassConstructor<_VTapeLayout>;
+    AbstractTreeValueChooser: ClassConstructor<_AbstractTreeValueChooser>;
     Decorators: typeof decorator;
 }