using System; using Microsoft.Xrm.Sdk; using Microsoft.Crm.Sdk.Messages; /// <summary> /// 产品 /// </summary> public class ProductHelper { public static readonly string entityName = "product"; public Guid productId = Guid.Empty; publi…

在Magento中上传单个文件很简单,可以直接在继承的Mage_Adminhtml_Block_Widget_Form类中直接添加如下组件Field:  对于图片:   $fieldset->addField('test_pic', 'image', array(     'label' => "标签",     'name' => 'test_pic', ));   对于文件:   $fieldset->addField('test_file', 'file'…

仿照Rails实战:购物网站 教材:5-6 step5:计算总价,做出在nav上显示购物车内product的数量. 遇到的❌: 1. <% sum = 0 %> <% current_cart.cart_items each do |cart_item| %> <% if cart_item.product.price.present? %> <% sum = sum + cart_item.quantity * cart_item.product.price %…

Friday, May 13, 2011 ASP.NET MVC 3 supports a new view-engine option called “Razor” (in addition to continuing to support/enhance the existing .aspx view engine).  Razor minimizes the number of characters and keystrokes required when writing a view t…

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Text.RegularExpressions; using System.Threading.Tasks; namespace ConsoleApplication6 { public sealed class RegularExpressionHelper { /// <summary> ///…

handlebars相对来讲算一个轻量级.高性能的模板引擎,因其简单.直观.不污染HTML的特性,我个人特别喜欢.另一方面,handlebars作为一个logicless的模板,不支持特别复杂的表达式.语句,只内置了一些基本的语法,像if.each这些.可惜的是就连if都十分弱,只能判断值是否为true/false,或转化后是否为true/false,不能对值进行比较.不过,handlebars提供了自定义helper的能力,通过自定义helper,可以实现非常丰富的功能.本篇来总结一下hand…

project.json 配置: { "version": "1.0.0-*", "compilationOptions": { "emitEntryPoint": true }, "dependencies": { "Microsoft.AspNet.Diagnostics": "1.0.0-rc2-16303", "Microsoft.AspNet.II…

Encountered an unexpected error when attempting to resolve tag helper directive '@addTagHelper' with value 'Microsoft.AspNet.Mvc.Razor.TagHelpers.UrlResolutionTagHelper, Microsoft.AspNet.Mvc.Razor'. Error: 未将对象引用设置到对象的实例. ASP.NET MVC的View视图突然都报错. 解决方…

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Given an array of n integers where n > 1, nums, return an array output such that output[i] is equal to the product of all the elements of nums except nums[i]. Solve it without division and in O(n). For example, given [1,2,3,4], return [24,12,8,6]. Fo…