随笔分类 - c#
摘要：参考 : https://www.cnblogs.com/kuangzhenxia-416/p/11728928.html//获取所有字体集合 System.Drawing.Text.InstalledFontCollection MyFont = new System.Drawing.Text.I
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摘要：public void ConfigureServices(IServiceCollection services) #region 配置跨域 //配置跨域处理 services.AddCors(options => options.AddPolicy("CorsPolicy", builder =
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摘要：string ConnectionString = ConString; SqlSugarClient db = new SqlSugarClient(new ConnectionConfig() { ConnectionString = ConnectionString, DbType = DbT
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摘要：private void button2_Click(object sender, EventArgs e) { var btnlist = GetButtons(this.panel1.Controls); //btnSave for (int i = 0; i < btnlist.Count;
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摘要：//添加根节点 var d1 = tv.Nodes.Add("全部");//把内容作为根节点添加 //添加子节点 TreeNode tnn = new TreeNode(); tnn.Tag = "123"; tnn.Text = "11212312"; d1.Nodes.Add(tnn);
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摘要：#region 初始化 下拉框 public void InitSelects() { //设置性别 var xb_list = new string[] { "男", "女" }; //设置民族 var mz_list = new string[] {"汉族", "蒙古族", "回族", "藏族"
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摘要：转自 码农教程 : http://www.manongjc.com/detail/5-ainbtqpybluyxjv.html private static bool CheckIDCard18(string Id) { if (Id.Length != 18) { return false; }
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摘要：//获取当前时间； 2020-05 var d_n = DateTime.Now; StringBuilder sb = new StringBuilder(); sb.AppendFormat(" select '{0}' AS M ", d_n.ToString("yyy-MM")); for
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摘要：var t12 = psdb.Db.SqlQueryable<dynamic> ("sql") .OrderBy(x => x.CreateTime, OrderByType.Desc) .ToPageList(pageModel.PageIndex, pageModel.PageSize, ref
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摘要：string resultStr = ""; byte[] tempByte = System.Text.Encoding.Default.GetBytes(resultStr); // 读取字符串 到字节数组 一个中文 2个字节；
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摘要：有的时候，需要知道近段时间SQLSERVER执行了什么语句，可以用下面的方法： SELECT TOP 1000 QS.creation_time, SUBSTRING(ST.text, (QS.statement_start_offset / 2) + 1, ((CASE QS.statement_
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摘要：var regex = new Regex(@" (?=.*[0-9]) #必须包含数字 (?=.*[a-zA-Z]) #必须包含小写或大写字母 (?=([\x21-\x7e]+)[^a-zA-Z0-9]) #必须包含特殊符号 .{8,30} #至少8个字符，最多30个字符 ", RegexOpti
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摘要：var animals = new[] { new { Name="Dog",Age=3,Type1="Home" }, new { Name="Cat",Age=1,Type1="Home" }, new { Name="Wolf",Age=2,Type1="Wild" }, new { Name
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摘要：var d0 = Math.Round((0.4), MidpointRounding.AwayFromZero); //0 var d1 = Math.Round((0.45), MidpointRounding.AwayFromZero); // 0 var d2 = Math.Round((0
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摘要：--清除存储过程缓存 DBCC FREEPROCCACHE --清除会话缓存 DBCC FREESESSIONCACHE --清除系统缓存 DBCC FREESYSTEMCACHE('All') --清除所有缓存 DBCC DROPCLEANBUFFERS GO 转自: https://blog.c
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摘要：static void Main() { Random r = new Random(); DataTable dt = new DataTable(); dt.Columns.Add("Id", typeof(string)); for (int i = 0; i < 10; i++) { Dat
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摘要：....... AppData\Local\Microsoft\VisualStudio\ ......... ApplicationPrivateSettings.xml 文件中 <collection name="CodeContainers.Offline"> <value name="val
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摘要：foreach (System.Data.DataColumn col in dt1.Columns) col.ReadOnly = false;
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