diff --git a/typescript/base/single/button/buttons/button.text.ts b/typescript/base/single/button/buttons/button.text.ts
index b5d11e4962..83242574f1 100644
--- a/typescript/base/single/button/buttons/button.text.ts
+++ b/typescript/base/single/button/buttons/button.text.ts
@@ -17,6 +17,9 @@ export interface _TextButtonStatic {
 }
 
 export declare class TextButton extends BasicButton {
+    static xtype: string;
+    static EVENT_CHANGE: string;
+
     setStyle(style: any): void;
 
     doRedMark(...args: any[]): void;
diff --git a/typescript/case/button/icon/icon.change.ts b/typescript/case/button/icon/icon.change.ts
index 207686c8e9..c98cde2c3b 100644
--- a/typescript/case/button/icon/icon.change.ts
+++ b/typescript/case/button/icon/icon.change.ts
@@ -13,6 +13,9 @@ export interface _IconChangeButtonStatic {
 }
 
 export declare class IconChangeButton extends Single {
+    static xtype: string;
+    static EVENT_CHANGE: string;
+
     isSelected(): boolean;
 
     setSelected(v: boolean): void;
diff --git a/typescript/widget/downlist/combo.downlist.ts b/typescript/widget/downlist/combo.downlist.ts
index f9954c36f7..43e22cf361 100644
--- a/typescript/widget/downlist/combo.downlist.ts
+++ b/typescript/widget/downlist/combo.downlist.ts
@@ -15,6 +15,11 @@ export interface _DownListComboStatic {
 }
 
 export declare class DownListCombo extends Widget {
+    static xtype: string;
+    static EVENT_CHANGE: string;
+    static EVENT_SON_VALUE_CHANGE: string;
+    static EVENT_BEFORE_POPUPVIEW: string;
+    
     hideView: () => void;
 
     showView: (e?: any) => void;