How to find and search list values which is available or not from multiple another lists. For example, List<string> FromList = new List<string>() { "Sub A", "Sub B" }; List<string> List1 = new List<string>() { "Sub A=80", "Sub D=70" }; ...
varqueryMatchingFiles =fromfileinfileListwherefile.Extension ==".txt"letfileText = File.ReadAllText(file.FullName)wherefileText.Contains(searchTerm)selectfile.FullName;// Execute the query.Console.WriteLine($"""The term "{searchTerm}" was found in:""");foreach(stringfilenameinq...
searchResult= datas.Find(x => x.No ==indexs[i]); } sw.Stop(); Console.WriteLine($"list Find 耗时:{sw.ElapsedMilliseconds}"); sw.Restart();for(inti =0; i < executeCount; i++) { dicDatas.TryGetValue(indexs[i],outsearchResult); } sw.Stop(); Console.WriteLine($"dictionary Try...
stringstartFolder ="""C:\Program Files\dotnet\sdk""";// Or// string startFolder = "/usr/local/share/dotnet/sdk";DirectoryInfo dir =newDirectoryInfo(startFolder);varfileList = dir.GetFiles("*.*", SearchOption.AllDirectories);stringsearchTerm ="change";varqueryMatchingFiles =fromfil...
searchResult = datas.Where(x => x.No == indexs[i]).First(); } sw.Stop(); Console.WriteLine($"list Where+First 耗时:{sw.ElapsedMilliseconds}");sw.Restart();for (int i = 0; i < executeCount; i++) { searchResultBool = datas.Exists(x => x.No == indexs[i]); ...
编译代码 可靠编程 若要对多种类型的文档和文件的内容执行密集型查询操作,请考虑使用Windows Desktop Search(Windows 桌面搜索)引擎。 请参见 概念 LINQ to Objects LINQ 和文件目录
Gets or sets the name of the type that is created for Insert, Delete, and Update operations. (Inherited from ContextDataSource) Events Gets a list of event handler delegates for the control. This property is read-only. (Inherited from Control) GroupBy Gets or sets a value that specif...
The Search method returns a Result object based on the data it finds, including the values found in the current call to Search, the list of all values found in all previous calls to Search, and the current status of the search. This means that the UI can now return data in ...
Supported in: Windows Phone OS 7.1 Platforms For a list of the operating systems and browsers that are supported by Silverlight, seeSupported Operating Systems and Browsers. See Also Reference Queryable Class GroupBy Overload System.Linq Namespace...
privatestaticvoidOnlySearch<T>(T studentList) { Console.WriteLine("只查询合适对象集合的某个属性:"); //lamb的写法 var students=RevealChangeType(studentList).Where(n=>n.Language=="Chinese").Select(n=>n.Name); //linq的写法 //var students...