diff --git a/src/component/form/form.js b/src/component/form/form.js
index 87cd64236..748b6a65f 100644
--- a/src/component/form/form.js
+++ b/src/component/form/form.js
@@ -35,6 +35,7 @@
     },
 
     _createItems: function () {
+        var self = this;
         var o = this.options;
 
         return BI.map(o.items, function (idx, item) {
@@ -51,6 +52,11 @@
                     eventName: "EVENT_CHANGE",
                     action: function () {
                         this.validate();
+                        if (self.isAllValid()) {
+                            self.fireEvent("EVENT_VALID");
+                        } else {
+                            self.fireEvent("EVENT_ERROR");
+                        }
                     }
                 }]
             };
@@ -88,4 +94,6 @@
     }
 });
 
+BI.Form.EVENT_VALID = "EVENT_VALID";
+BI.Form.EVENT_ERROR = "EVENT_ERROR";
 BI.shortcut("bi.custom_form", BI.Form);
diff --git a/typescript/component/form/form.ts b/typescript/component/form/form.ts
new file mode 100644
index 000000000..c802c6362
--- /dev/null
+++ b/typescript/component/form/form.ts
@@ -0,0 +1,15 @@
+import { Widget } from "../../core/widget";
+
+export declare class Form extends Widget {
+    static xtype: string;
+    static EVENT_VALID: string;
+    static EVENT_ERROR: string;
+
+    isAllValid(): boolean;
+
+    validateWithNoTip(): boolean[];
+
+    validate(): boolean[];
+
+    getValue<T>(): T[];
+}
\ No newline at end of file
diff --git a/typescript/index.ts b/typescript/index.ts
index 619ab72ce..efecf3fec 100644
--- a/typescript/index.ts
+++ b/typescript/index.ts
@@ -25,6 +25,7 @@ import { SearchTextValueCombo } from "./case/combo/searchtextvaluecombo/combo.se
 import { SignEditor } from "./case/editor/editor.sign";
 import { StateEditor } from './case/editor/editor.state';
 import { AllValueMultiTextValueCombo } from "./component/allvaluemultitextvaluecombo/allvalue.multitextvalue.combo";
+import { Form } from './component/form/form';
 import { AbstractTreeValueChooser } from "./component/treevaluechooser/abstract.treevaluechooser";
 import { AbstractListTreeValueChooser } from "./component/treevaluechooser/abstract.treevaluechooser.list";
 import { Action, ActionFactory } from "./core/action/action";
@@ -216,6 +217,7 @@ export interface BI extends _func, _i18n, _base, _inject, _var, _web, _utils {
     SmallTextValueCombo: typeof SmallTextValueCombo;
     BubbleCombo: typeof BubbleCombo;
     AllValueMultiTextValueCombo: typeof AllValueMultiTextValueCombo;
+    Form: typeof Form;
     IconTextItem: typeof IconTextItem;
     MultiSelectItem: typeof MultiSelectItem;
     AbstractLabel: typeof AbstractLabel;
@@ -508,6 +510,7 @@ export {
     Switch,
     HorizontalLayout,
     ShelterEditor,
+    Form,
     TextTrigger,
     SelectTextTrigger,
     DateInterval,