using System; using System.Collections.Generic; public class Example { public static void Main() { // Create a new dictionary of strings, with string keys. // Dictionary<string, string> openWith = new Dictionary<string, string>(); // Add some…
using System; using System.Collections; public class SamplesSortedList { public static void Main() { // Creates and initializes a new SortedList. SortedList mySL = new SortedList(); mySL.Add("Third", "!"); mySL.Add("Second",…
'System.Collections.Generic.IEnumerable<string>' does not contain a definition for 'Where' and no extension method 'Where' accepting a first argument of type 'System.Collections.Generic.…
最近将一个项目从ASP.NET MVC 3升级至刚刚发布的ASP.NET MVC 5.1,升级后发现一个ajax请求出现了500错误,日志中记录的详细异常信息如下: System.ArgumentException: 已添加了具有相同键的项.(An item with the same key has already been added) 在 System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boole…
问题描述:如图,在调试状态下说:Unknown type 'System.Collections.Generic.CollectionDebuggerView'1<ignore_js_op><ignore_js_op> 解决方案1:暂时把List<实体>放到没有继承MonoBehaviour的类库中,public class EditObjectDBLists ist<EditObjectDBList>{};<ignore_js_op> 具体原因…
using System; using System.Collections; public class SamplesQueue { public static void Main() { // Creates and initializes a new Queue. Queue myQ = new Queue(); myQ.Enqueue("Hello"); myQ.Enqueue("World"); myQ.Enqueue("!"); //…
using System; using System.Collections; public class SamplesArrayList { public static void Main() { // Creates and initializes a new ArrayList. ArrayList myAL = new ArrayList(); myAL.Add("Hello"); myAL.Add("World"); myAL.Add("!&qu…