WebC#中DataTable和List互转的示例代码：& DataTableDataTable 是 C# 中常用的一种数据表格类型，它类似于数据库中的表格，可以用来存储和处理数据。DataTable 中的数据可以 … WebFeb 10, 2014 · public DataTable ConvertToDataTable (IList data) { PropertyDescriptorCollection properties = TypeDescriptor.GetProperties (typeof (T)); DataTable table = new DataTable (); foreach (PropertyDescriptor prop in properties) table.Columns.Add (prop.Name, Nullable.GetUnderlyingType (prop.PropertyType) ?? …
c# - Coverting List of Dictionary to DataTable - Stack Overflow
WebSep 26, 2024 · In your xml you have multiple Days so for th you have to take distinct from those days and render And for successive tr you have to group each of your row by its CampusName. Try below code that will help you to gt your desired result. The best practice is to write the below code in your action method and pass result to your razor view by … WebJan 23, 2010 · A valid data source must implement either IListSource or IEnumerable" when trying to bind a DataRow directly to the DataSource property of a control. Here's how to do it: DataTable dataTable = new DataTable (); dataTable.ImportRow (dataRow); MyControl.DataSource = dataTable; – humbads Oct 3, 2012 at 15:44 how to adjust a spray gun
c# - select List where sub-list contains is all item from another list ...
WebThe type is defined on the server like this: CREATE TYPE [dbo]. [IdList] AS TABLE ( [Id] [int] NOT NULL ) I have tried passing sharedPdfs as a List, and IQueryable, but keep getting the following exception: Object must implement IConvertible. Anyone know what I am doing wrong? WebMar 17, 2016 · You're trying to add a list with the Add method which takes a single object, just keep it simple and use a foreach: using (var ctx = new StradaDataReviewContext2 ()) { foreach (var value in values) { value.Username = user; value.Changed = DateTime.Now; ctx.UOSChangeLog.Add (value); } ctx.SaveChanges (); return true; } WebTo create List in C#, we need to use the System.Collections.Generic namespace. Here is how we can create List .For example, using System; using System.Collections.Generic; class Program { public static void Main() { // create a list named subjects that contain 2 elements List< string > subjects = new List< string > () { … metric oriented