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C# 操作MongoDb插入、更新、查询 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
C# 操作MongoDb插入、更新、查询Mongo连接字符串形式：mongodb: 127.0.0.1:27017 插入或更新一条记录BsonDocument doc = new BsonDocument();...MongoServer serv...Mongo连接字符串形式：mongodb://127.0.0.1:27017
// 插入或更新一条记录
BsonDocument doc = new Bso...
C#科学计数法转换decimal出错 - 更多技术 - 清泛网 - 专注C/C++及内核技术
C#科学计数法转换decimal出错decimal scientific = decimal.Parse("2.1021E-05")执行发生异常：未经处理的异常:System.FormatException: 输入字符串的格式不正确。...decimal scientific = decimal.Parse("2.1021E-05")
执行发生异常：“未经处理的异常: System.Forma...
C# 通过代码安装、卸载、启动、停止服务 - 更多技术 - 清泛网 - 专注C/C++及内核技术
C# 通过代码安装、卸载、启动、停止服务直接贴代码，亲测可用：#region Windows服务控制区 #region 安装服务 private void InstallService(str...直接贴代码，亲测可用：
#region Windows服务控制区
#region 安装服务
priv...
C#泛型(List)中基类和子类 怎么转换？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
C#泛型(List)中基类和子类 怎么转换？List<ChildClass> childList = ...Foo(List<BaseClass> baseList);需求：把子类列表传入函数Foo，Foo支持所有子类列表。方法一：Foo(ch...List<ChildClass> childList = ...
Foo(List<BaseClass> baseList);
需求：把子类列表传入...
C# CultureInfo命名空间 - 更多技术 - 清泛网 - 专注C/C++及内核技术
C# CultureInfo命名空间using System.Globalization;详细请参考MSDN：https: msdn.microsoft.com zh-cn library system.globalization.cultureinfo.aspxusing System.Globalization;
详细请参考MSDN：https://msdn.microsoft.com/zh-cn/library/system.globalization.cultureinfo.aspxC# CultureInfo ...
What is the yield keyword used for in C#?
...n is called again until it "yields". This is syntactic sugar introduced in C# 2.0. In earlier versions you had to create your own IEnumerable and IEnumerator objects to do stuff like this.
The easiest way understand code like this is to type-in an example, set some breakpoints and see what happens....
Why C# fails to compare two object types with each other but VB doesn't?
I have two objects in C# and don't know if it's Boolean or any other type.
However when I try to compare those C# fails to give the right answer.
I have tried the same code with VB.NET and that did it !
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Microsoft Roslyn vs. CodeDom
...eDom was an attempt at providing a unified model that can generate code in C#, VB, and other languages, it lacks high fidelity with any of the languages that it supports (that's why you can't create a switch statement with CodeDom). CSharpCodeProvider.CompileAssemblyFromSource is simply a wrapper ar...
Writing data into CSV file in C#
I am trying to write into a csv file row by row using C# language. Here is my function
15 Answers
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Inserting a tab character into text using C#
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Hazar is right with his \t. Here's the full list of escape characters for C#:
\' for a single quote.
\" for a double quote.
\\ for a backslash.
\0 for a null character.
\a for an alert character.
\b for a backspace.
\f for a form feed.
\n for a new line.
\r for a carriage return.
\t for a...