LINQ to Teradata
In my previous post, I demonstrated how to use ADO.NET to connect to Teradata in your OLTP projects. In this sample, I am going to implement the same sample using ADO.NET Entity Model, Entity Framework and LINQ. ...
在C#中实现三十二进制Duotricemary
在我们的一个系统中，为了更方便以及用更少的字符表示更大的数字，在C#中实现了32进制的结构Duotricemary，也可将其更改为类。它主要包含的功能为：通过字符串比如“2EWS”创建三十二进制的实例，也可以通过整型比如12000创建实例，既可以把数字以三十二进制的字符表述，也可以三十二进制的字符转换为整型；添加了从string以及int类型强制转换的隐式操作符，也添加了加减操作符，其它功能可以自行根据需要添加。
.NET Core is built in with dependency injection. Usually method ConfigureServices in Startup class is used to register services in the container. The signature of the method looks like the following: public void ConfigureServices(IServiceC...
Tuples in C# (4.x, 7.0, 7.1)
What is a tuple? Tuple is an ordered sequence, fixed-size, immutable and of heterogeneous objects. Tuple has been existing in other languages such as F#, Python, Perl and etc. for a long time. It was first introduced into C# from C# 4.0 and has been evolving over time. Since C# 7.1, tuple...
C# version history and core features
C# is my favourite programming language and has been evolving overtime. I have been programming with many other languages but C# is always my favourite because it is simple and easy to use. Visual Studio is the most powerful tool I’ve ever used. To me, programming efficiency and peformance are th...
Invoke Hadoop WebHDFS APIs in .NET Core
local_offer hadoop local_offer hdfs
Background Apache doesn't provide native official .NET APIs for Hadoop HDFS. The HTTP REST API supports the complete FileSystem / ...
.NET中的安全性之数字签名、数字证书、强签名程序集、反编译
本文将探讨数字签名、数字证书、强签名程序集、反编译等以及它们在.NET中的运用（一些概念并不局限于.NET在其它技术、平台中也存在）。1.数字签名
[C#] 基于.NET开发 ActiveX 控件（二） 安全篇
local_offer C# local_offer .NET
C# 利用WinRAR (加密)压缩及解压缩 相关文件夹及文件
local_offer C# local_offer .NET
本次示例主要实现：
1.压缩文件夹及其下文件
2.压缩文件夹下文件
3.压缩文件夹及其下文件为rar 还是 zip
4.解压缩
5.加密压缩及解加密压缩
背景 在使用Visual Studio Setup项目模版创建Windows Installer项目时，我们有时需要用户输入序列号，同时验证序列号是否正确。在VS Setup模版中，我们往往仅能进行一些简单的验证，如果需要复杂的验证，怎么办呢？这里介绍一种结合Orac以及C++来实现此功能。 Orca Orca是一款编辑Windows Installer (*.msi) 文件的工具，借助它我们可以对安装包中的表数据进行修改。此工具使用以及下载地址请参考: ...
