Extjs4 似bug非bug的东西修改
/** hzm modify * method: Ext.panel.Table.hasLockedColumns: function(columns) {} * function:支持extjs grid colums三元表达式,tbar支持三元表示 eg: user.users_type == 2 ? {text: "创建日期", flex: 1, dataIndex: ‘create_time‘} : null, var grid = Ext.create(‘Ext.grid.Panel‘, { columns: [ new Ext.grid.RowNumberer(), user.users_type == 1 ? {text: "创建日期", flex: 1, dataIndex: ‘create_time‘} : null, {text: "备注", flex: 1, sortable: true, dataIndex: ‘remark‘} ] }); user.users_type == 1 ? { text:‘添加会员‘, iconCls:‘add‘, handler:function() { MyDesktop.MemberWindow.member.addOrUpdateMember(); } } : null, user.users_type == 1 ? ‘-‘ : null * note: 添加if判断column是否为空 //源代码: if (!column.processed && column.locked) { return true; } */ Ext.override(Ext.panel.Table, { hasLockedColumns: function(columns) { var i, len, column; if (Ext.isObject(columns)) { columns = columns.items; } for (i = 0, len = columns.length; i < len; i++) { column = columns[i]; if (column && !column.processed && column.locked) { return true; } } } }); /** * hzm modify * method: Ext.data.Connection.onComplete : function(request, xdrResult) * function: gridpanel数据加载出错时(服务器内部错误),支持返回错误原因 */ Ext.override(Ext.data.Connection, { onComplete : function(request, xdrResult) { var me = this, options = request.options, result, success, response; try { result = me.parseStatus(request.xhr.status); } catch (e) { // in some browsers we can‘t access the status if the readyState is not 4, so the request has failed result = { success : false, isException : false }; } success = me.isXdr ? xdrResult : result.success; if (success) { response = me.createResponse(request); me.fireEvent(‘requestcomplete‘, me, response, options); Ext.callback(options.success, options.scope, [response, options]); /** * hzm modify start * method: Ext.data.Connection.onComplete : function(request, xdrResult) * function: gridpanel数据加载出错时(服务器内部错误),支持返回错误原因 * note: 原生系统,无以下段代码 */ if(response && options.operation && !options.operation.response) { options.operation.response = response; } /* * modify end */ } else { if (result.isException || request.aborted || request.timedout) { response = me.createException(request); } else { response = me.createResponse(request); } me.fireEvent(‘requestexception‘, me, response, options); Ext.callback(options.failure, options.scope, [response, options]); } Ext.callback(options.callback, options.scope, [options, success, response]); delete me.requests[request.id]; return response; } }); /** * hzm modify * method: Ext.selection.Model.getSelection : function() * function: 当修改并reload后未更新当前grid selected range中的record */ Ext.override(Ext.selection.Model, { getSelection: function() { var me = this, store = me.store, arr = this.selected.getRange(); for(var i = 0; arr && i < arr.length; i++) { try { var record = arr[i]; var newRecord = store.getById(record.get(record.idProperty)); if(newRecord) { arr[i] = newRecord; } } catch(e) { alert(‘ext_override getSelection出现异常,详细信息:‘ + e); } } return arr; } });
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