05 2019 档案

error: open(".vs/ConsoleApp349/v16/Server/sqlite3/db.lock"): Permission denied error: unable to index file
摘要：第一种1.git add --ignore-errors . 特别注意 git add --ignore-errors . errors后面有一个空格再加一个点' .' 第二种： 1.touch .gitignore; 2.添加要省略的文件 .vs/ 阅读全文
posted @ 2019-05-28 00:49 FredGrit 阅读(3627) 评论(0) 推荐(0) 编辑
C# Large Files MD5 C# 获取大文件MD5
摘要：static void GenerateMD5ForLargeFiles(string fileName) { StringBuilder stringBuilder = new StringBuilder(); using (Stream readStream = File.OpenRead(fi 阅读全文
posted @ 2019-05-22 00:34 FredGrit 阅读(784) 评论(0) 推荐(0) 编辑
C# SmtpClient 发邮件
摘要：异步：public void SendAsync(MailMessage message, object userToken); Sends the specified e-mail message to an SMTP server for delivery. This method does n 阅读全文
posted @ 2019-05-22 00:13 FredGrit 阅读(354) 评论(0) 推荐(0) 编辑
Windows Server 2008 R2 install Visual Studio 2015 failed
摘要：Please download and install Windows Server 2008 R2 Service Pack 1 (KB976932) . https://www.microsoft.com/en-us/download/details.aspx?id=5842 阅读全文
posted @ 2019-05-21 23:04 FredGrit 阅读(399) 评论(0) 推荐(0) 编辑
C# 下载泛型数据
摘要：https://github.com/Smoothfu/CSharp/tree/SecuritySafeCriticalpublicvoidSetApartmentStateApartmentStatestatesetstheapartmentstateofathreadbeforeitisstar 阅读全文
posted @ 2019-05-19 23:20 FredGrit 阅读(223) 评论(0) 推荐(0) 编辑
SetApartmentState(ApartmentState state).Ensure that your Main function has STAThreadAttribute marked on it. This exception is only raised if a debugger is attached to the process
摘要：System.Threading.ThreadStateException: 'Current thread must be set to single thread apartment (STA) mode before OLE calls can be made. Ensure that you 阅读全文
posted @ 2019-05-19 23:17 FredGrit 阅读(293) 评论(0) 推荐(0) 编辑
ADO.NET
摘要：static void ADO() { string connString = ConfigurationManager.ConnectionStrings["connString"].ToString(); using (SqlConnection conn = new SqlConnection(connStrin... 阅读全文
posted @ 2019-05-19 21:54 FredGrit 阅读(143) 评论(0) 推荐(0) 编辑
WPF DataGrid row background converter datagrid 行背景随绑定数据变化,转换器
摘要：<DataGrid.RowStyle> <Style TargetType="DataGridRow"> <Setter Property="Background" > <Setter.Value> <Binding Path="SalesOrderDetailID" Converter="{Sta 阅读全文
posted @ 2019-05-12 21:50 FredGrit 阅读(1060) 评论(0) 推荐(0) 编辑
C# 截图ScreenCapture,保存
摘要：简化版： 效果如图： using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Drawing;using S 阅读全文
posted @ 2019-05-12 14:09 FredGrit 阅读(1358) 评论(0) 推荐(0) 编辑
Hashtable 负载因子Load Factor
摘要：负载因子(load factor)，它用来衡量哈希表的 空/满 程度，一定程度上也可以体现查询的效率，计算公式为: The ratio of the number of elements in the hash table to the table size iscalled the load fa 阅读全文
posted @ 2019-05-07 21:17 FredGrit 阅读(1558) 评论(0) 推荐(0) 编辑

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