diff --git a/.eslintrc.js b/.eslintrc.js
index 83bd0fc33e..97e9d90b42 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -104,6 +104,7 @@ if (process.env.RUN_ENV === 'DEMO') {
     'react/no-multi-comp': 0,
     'jsx-a11y/href-no-hash': 0,
     'import/no-extraneous-dependencies': 0,
+    'jsx-a11y/control-has-associated-label': 0,
   });
 }
 
diff --git a/components/form/demo/customized-form-controls.md b/components/form/demo/customized-form-controls.md
index 8063c8fec9..2f438b87d1 100644
--- a/components/form/demo/customized-form-controls.md
+++ b/components/form/demo/customized-form-controls.md
@@ -73,24 +73,27 @@ class PriceInput extends React.Component {
     // Should provide an event to pass value to Form.
     const { onChange } = this.props;
     if (onChange) {
-      onChange(Object.assign({}, this.state, changedValue));
+      onChange({
+        ...this.state,
+        ...changedValue,
+      });
     }
   };
 
   render() {
     const { size } = this.props;
-    const { state } = this;
+    const { currency, number } = this.state;
     return (
       <span>
         <Input
           type="text"
           size={size}
-          value={state.number}
+          value={number}
           onChange={this.handleNumberChange}
           style={{ width: '65%', marginRight: '3%' }}
         />
         <Select
-          value={state.currency}
+          value={currency}
           size={size}
           style={{ width: '32%' }}
           onChange={this.handleCurrencyChange}