谁能告诉我,是否在使用数据集设计器方面有任何效费,而不是使用代码和人工检索数据建立数据链接?
What is the use of default keyword in C#? Is it introduced in C# 3.0 ?
谁能告诉我,是否在使用数据集设计器方面有任何效费,而不是使用代码和人工检索数据建立数据链接?
当你利用设计师创建数据集时,你正在创建“类型数据集”。 如果你能够,则使用分类数据集,以在代码中生成数据。 一类数据集提高了你保持自己 app的能力。 您不能以直号提及您的数据栏,而可以通过汇编的特性来查阅。
而不是......
Dataset1.Datatable1(0)("UserId") = 1
页: 1
Dataset1.Datatable1(0).UserId = 1
这似乎并不像很多,但你消除了你在法典中某处歪曲你的一栏名的机会。 还有其他许多好处。
就业绩而言,无论你是用密码还是设计师来建设,你都获得了任何运行时间的业绩差异的通知。 该设计师从您的XSD文档中产生代码。 然而,由于记忆中的数据很多,你更无法设计一个更高效利用资源的习俗类别。
简称......
What is the use of default keyword in C#? Is it introduced in C# 3.0 ?
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