diff --git a/scss/layout/_layout.scss b/scss/layout/_layout.scss
index 1abe0f7a0..d13dd1c15 100644
--- a/scss/layout/_layout.scss
+++ b/scss/layout/_layout.scss
@@ -248,10 +248,10 @@ body {
 @include media-breakpoint-up(md) {
     .#{$ns}Layout {
         &--boxed {
-            width: px2rem(750px);
+            width: px2rem(760px);
 
             &.#{$ns}Layout--headerFixed .#{$ns}Layout-header {
-                width: px2rem(750px);
+                width: px2rem(760px);
             }
         }
 
@@ -488,10 +488,10 @@ body {
 @include media-breakpoint-up(lg) {
     .#{$ns}Layout {
         &--boxed {
-            width: px2rem(970px);
+            width: px2rem(980px);
 
             &.#{$ns}Layout--headerFixed .#{$ns}Layout-header {
-                width: px2rem(970px);
+                width: px2rem(980px);
             }
         }
     }
@@ -500,10 +500,10 @@ body {
 @include media-breakpoint-up(xl) {
     .#{$ns}Layout {
         &--boxed {
-            width: px2rem(1170px);
+            width: px2rem(1180px);
 
             &.#{$ns}Layout--headerFixed .#{$ns}Layout-header {
-                width: px2rem(1170px);
+                width: px2rem(1180px);
             }
         }
     }
diff --git a/src/renderers/Form/Combo.tsx b/src/renderers/Form/Combo.tsx
index 3723ad4e5..a13720bda 100644
--- a/src/renderers/Form/Combo.tsx
+++ b/src/renderers/Form/Combo.tsx
@@ -127,7 +127,8 @@ export default class ComboControl extends React.Component<ComboProps> {
             store,
             value,
             minLength,
-            maxLength
+            maxLength,
+            formItem
         } = this.props;
 
         store.config({
@@ -135,6 +136,8 @@ export default class ComboControl extends React.Component<ComboProps> {
             maxLength,
             length: this.getValueAsArray().length
         });
+
+        formItem && formItem.setSubStore(store);
     }
 
     componentWillReceiveProps(nextProps:ComboProps) {
@@ -155,6 +158,14 @@ export default class ComboControl extends React.Component<ComboProps> {
         }
     }
 
+    componentWillUnmount() {
+        const {
+            formItem
+        } = this.props;
+
+        formItem && formItem.setSubStore(null);
+    }
+
     getValueAsArray(props = this.props) {
         const {
             flat,
diff --git a/src/renderers/Form/index.tsx b/src/renderers/Form/index.tsx
index f1c0ac12a..25974dca7 100644
--- a/src/renderers/Form/index.tsx
+++ b/src/renderers/Form/index.tsx
@@ -293,6 +293,12 @@ export default class Form extends React.Component<FormProps, object> {
         (this.handleChange as any).cancel();
         this.asyncCancel && this.asyncCancel();
         this.disposeOnValidate && this.disposeOnValidate();
+        const store = this.props.store;
+
+        if (store && store.parentStore && store.parentStore.storeType === 'ComboStore') {
+            const combo = store.parentStore as IComboStore;
+            combo.removeForm(store);
+        }
     }
 
     async onInit() {
@@ -334,21 +340,24 @@ export default class Form extends React.Component<FormProps, object> {
                 [initFinishedField || 'finished']: false
             });
 
-        isEffectiveApi(initApi, store.data) &&
-            store.fetchData(initApi, store.data, {
-                successMessage: fetchSuccess,
-                errorMessage: fetchFailed,
-                silent,
-                onSuccess: () => {
-                    if (!isEffectiveApi(initAsyncApi, store.data) || store.data[initFinishedField || 'finished']) {
-                        return;
-                    }
+        isEffectiveApi(initApi, store.data) 
+            ? store.fetchInitData(initApi, store.data, {
+                    successMessage: fetchSuccess,
+                    errorMessage: fetchFailed,
+                    silent,
+                    onSuccess: () => {
+                        if (!isEffectiveApi(initAsyncApi, store.data) || store.data[initFinishedField || 'finished']) {
+                            return;
+                        }
 
-                    return until(() => store.checkRemote(initAsyncApi, store.data)
-                        , (ret:any) => ret && ret[initFinishedField || 'finished']
-                        , (cancel) => this.asyncCancel = cancel);
-                }
-            }).then(this.initInterval);
+                        return until(() => store.checkRemote(initAsyncApi, store.data)
+                            , (ret:any) => ret && ret[initFinishedField || 'finished']
+                            , (cancel) => this.asyncCancel = cancel);
+                    }
+                })
+                .then(this.initInterval)
+                .then(() => store.reset(undefined, false))
+            : store.reset();
     }
 
     receive(values:object) {
@@ -599,7 +608,9 @@ export default class Form extends React.Component<FormProps, object> {
                     })
                     .then(async (response) => {
                         response && onChange && onChange(store.data, difference(store.data, store.pristine));
-                        store.validated && this.validate(true);
+                        if (store.validated) {
+                            await this.validate(true);
+                        }
 
                         if (action.feedback && isVisible(action.feedback, store.data)) {
                             await this.openFeedback(action.feedback, store.data);
diff --git a/src/renderers/Table.tsx b/src/renderers/Table.tsx
index 82a6f5d15..74e7dd209 100644
--- a/src/renderers/Table.tsx
+++ b/src/renderers/Table.tsx
@@ -705,7 +705,7 @@ export default class Table extends React.Component<TableProps, object> {
     }
 
     @autobind
-    handleDragOver(e: DragEvent) {
+    handleDragOver(e: any) {
         if (!e.target) {
             return;
         }
diff --git a/src/store/form.ts b/src/store/form.ts
index b079484d3..1814794e5 100644
--- a/src/store/form.ts
+++ b/src/store/form.ts
@@ -336,11 +336,14 @@ export const FormStore = ServiceStore
             items.forEach(item => item.reset());
         }
 
-        function reset(cb?: (data:any) => void) {
-            self.data = self.pristine;
+        function reset(cb?: (data:any) => void, resetData: boolean = true) {
+            if (resetData) {
+                self.data = self.pristine;
+            }
 
             // 值可能变了，重新验证一次。
             self.validated = false;
+            self.submited = false;
             self.items.forEach(item => item.reset());
             cb && cb(self.data);
         }
diff --git a/src/store/formItem.ts b/src/store/formItem.ts
index f5bdb307c..abf82cc52 100644
--- a/src/store/formItem.ts
+++ b/src/store/formItem.ts
@@ -31,6 +31,7 @@ import {
 import { IRendererStore } from ".";
 import { normalizeOptions } from "../components/Select";
 import find = require('lodash/find');
+import { iRendererStore } from './iRenderer';
 
 interface IOption {
     value?: string | number | null;
@@ -486,8 +487,19 @@ export const FormItemStore = types
             self.loading = value;
         }
 
+        let subStore:any;
+        function setSubStore(store:any) {
+            subStore = store;
+        }
+
         function reset() {
             self.validated = false;
+            
+            if (subStore && subStore.storeType === 'ComboStore') {
+                const combo = subStore as IComboStore;
+                combo.forms.forEach(form => form.reset());
+            }
+
             clearError();
         }
 
@@ -502,6 +514,7 @@ export const FormItemStore = types
             loadOptions,
             syncOptions,
             setLoading,
+            setSubStore,
             reset
         }
     });