ManBOyyy-优快云博客

原创 System.Windows.Forms.DataVisualization.Charting.Chart

//创建圖形式的Chart System.Windows.Forms.DataVisualization.Charting.Chart chart1 = new System.Windows.Forms.DataVisualization.Charting.Chart(); //定义一个chart System.Win...

2019-07-10 11:54:53 5462

原创 C#郵件發送

SendQQMail("smtp.qq.com", "發件人@qq.com", "授權碼", "收件人@qq.com", "QQ邮箱服务器发送邮件", "用asp.net发送邮件，用QQ的smtp.qq.com服务器，测试成功");public void SendQQMail(string strSmtpServer, string strFrom, string strFromPa...

2019-07-09 16:41:07 921

原创 C#判斷是否是數字、日期、double、decimal

int a; // bool IsNumber = int.TryParse("你要判断的值",out a); if (int.TryParse(textBox2.Text, out a)) { } DateTime date; if (DateT...

2019-07-09 16:36:51 487

原创 System.IO.Path 文件名、路径、扩展名处理

string filePath ="E:/1111/aaa/JustTest.rar";更改路径字符串的扩展名。System.IO.Path.ChangeExtension(filePath, "txt");E:/1111/aaa/JustTest.txt返回指定路径字符串的目录信息。System.IO.Path.GetDirectoryName(filePath);E:/1111...

2019-07-16 12:01:46 263

原创 C#切換輸入法

string languagename = "搜狗";//查找第一个搜狗输入法 foreach (InputLanguage l in InputLanguage.InstalledInputLanguages) { if (l.LayoutName.IndexOf(languagename) >= ...

2019-07-09 16:42:38 439 2

原创 Datatable合併

DataTable dt1 = new DataTable(); dt1.Columns.Add("ID ", typeof(int)); dt1.Columns.Add("Name ", typeof(string)); dt1.PrimaryKey = new DataColumn[] { dt1.Columns[0] ...

2019-07-09 16:39:54 319