随笔分类 - c#
摘要：picHeadImg.ImageLocation = string.Format("http://img3.imgtn.bdimg.com/it/u=4160106393,1595591376&fm=214&gp=0.jpg"); // picHeadImg.Image = Image.FromSt
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posted @ 2019-09-02 11:54
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摘要：//子线程调用主线程方法一 //this.Invoke(new Action(() => { // dgvScanChip.DataSource = SaveChipList; //})); //子线程调用主线程方法一 //ControlInvoker.Invoke(this, delegate /
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posted @ 2019-09-02 11:49
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摘要：using (OpenFileDialog ofd = new OpenFileDialog()) { ofd.Title = "请选择要插入的图片"; ofd.Filter = "JPG图片|*.jpg|BMP图片|*.bmp|Gif图片|*.gif"; ofd.CheckFileExists =
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posted @ 2019-09-02 11:47
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摘要：List<DeptInfo> deptList = (from emp in empList where emp.Status == "在职" //筛选“在职”员工 orderby emp.DeptID ascending //按“部门ID”排序 group emp by new //按“部门ID”
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posted @ 2019-09-02 11:42
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摘要：public static async Task<List<Syncchip>> DownSyncchipList(int id) { using (var client = new HttpClient()) { try { string url = ApiServer.url+"/school/
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posted @ 2019-09-02 11:39
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摘要：芮源: public class IsInternet { /// <summary> /// 判断是否有网 /// </summary> /// <returns>true为有网，false为无网</returns> public bool IsInternetAvailable() { try
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posted @ 2019-09-02 11:35
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摘要：//分组去重 Tag_data = Tag_data.GroupBy(p => p.epc).Select(g => g.First()).OrderBy(o=>o.epc).ToList(); //去除字符串的空格 string trim = Regex.Replace(epc.epc, @"\s
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posted @ 2019-09-02 11:33
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摘要：conn.Open(); OleDbDataAdapter Bada = new OleDbDataAdapter("select * from " + cmdText, conn);//建立一个DataAdapter对象 OleDbCommandBuilder cb = new OleDbComm
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摘要：//var fileName = System.IO.Path.GetFileName(upload.FileName); //var filePhysicalPath = Server.MapPath("~/Content/" + fileName);//我把它保存在网站根目录的 upload 文
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posted @ 2019-08-24 13:05
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摘要：C#追加文件 StreamWriter sw = File.AppendText(Server.MapPath(".")+"\\myText.txt"); sw.WriteLine("追逐理想"); sw.WriteLine("kzlll"); sw.WriteLine(".NET笔记"); sw.
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posted @ 2019-08-24 12:50
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