public object[] PrimaryKey { get { return new object[] { this.UserID }; } } } 下面代码将实现返回linq自动建立的实体(默认情况下,linq不支持这样建立) public IQueryableGetDetailModel() { IQueryablelinq1 = from data in new Repository().GetModel() select new UserAddress_Ext { UserID = data...
return"欢迎光临我的博客"+ Environment.NewLine + a +" "+ b; }; // Lambda表达式 Func<string,string,string> func3 = (a, b) => {return"欢迎光临我的博客"+ Environment.NewLine + a +" "+ b; }; // 调用Func委托 stringhelloStr = func2("滴答的雨",@"http://www.cnblogs.com/heyuqu...
...首先创建一个遍历所有目录的方法: public static Dictionary> OverDirectories() { // returnnull...经过完美符合我们的需求,修改GetDrivers方法,使其可以返回所有驱动器的根目录: 先引入以下命名空间的引用: using System.Linq;//Linq的支持 using System.Collections.Generic...new List(); try { files = ...
,可以通过使用LINQ的Join和GroupJoin方法来实现。 首先,我们需要定义父实体和子实体的类结构。假设我们有一个父实体类Parent和一个子实体类Child,它们之间存在一对多的关系,即一...
(node.Object!=null){Visit(node.Object);}Console.Write($"{Indent}{node.Method.Name}( ");varfirst=true;indent++;foreach(vararginnode.Arguments){if(first){first=false;}else{indent--;Console.Write($"{Indent},");indent++;}Visit(arg);}indent--;Console.Write(") ");returnnode;}protected...
(enumerator.Current);// The end and beginning are the same until the list contains > 1 elements.tail = head; m_Lock =newobject(); }// Indicates that all chunk elements have been copied to the list of ChunkItems.privateboolDoneCopyingChunk => tail ==null;// Adds one ChunkItem to ...
{return(x.Name.Equals(y.Name) && x.Size.Equals(y.Size)); }intIEqualityComparer<Sizes>.GetHashCode(Sizes obj) {if(Object.ReferenceEquals(obj,null))return0;returnobj.Name.GetHashCode() + obj.Size; } } The solution which I ended up using could not be described as fast, but that is not...
Using ExpandoObject you can build a dynamic objects or return the full object from the example below.public object CreateShappedObject(object obj, List<string> lstFields) { if (!lstFields.Any()) { return obj; } else { ExpandoObject objectToReturn = new ExpandoObject(); foreach (var field...
// Return the FileInfo object for the largest file// by sorting and selecting from beginning of listFileInfo longestFile = (fromfileinfileListletfileInfo =newFileInfo(file)wherefileInfo.Length >0orderbyfileInfo.LengthdescendingselectfileInfo ).First(); Console.WriteLine($"The large...
// Return the FileInfo object for the largest file// by sorting and selecting from beginning of listFileInfo longestFile = (fromfileinfileListletfileInfo =newFileInfo(file)wherefileInfo.Length >0orderbyfileInfo.LengthdescendingselectfileInfo ).First(); Console.WriteLine($"The largest fil...