修改采购模块

frontend/saas-web/app/view/purchase/purchase/FormPanel.js

@@ -85,7 +85,8 @@ Ext.define('saas.view.purchase.purchase.FormPanel', {
     }, {
         xtype : "textfield", 
         name : "pu_total", 
-        fieldLabel : "单据金额"
+        fieldLabel : "单据金额",
+        readOnly:true
     }, {
         name : "detailGridField", 
         xtype : "detailGridField",