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//Adding elements | |
var arlist = new ArrayList(); | |
arlist.Add(1); | |
arlist.Add("Bill"); | |
arlist.Add(" "); | |
arlist.Add(true); | |
arlist.Add(4.5); | |
arlist.Add(null); |
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//Access individual item using indexer | |
int firstElement = (int) arlist[0]; | |
string secondElement = (string) arlist[1]; | |
//using var keyword without explicit casting | |
var firstElement = arlist[0]; | |
var secondElement = arlist[1]; | |
//update elements |
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List<int> primeNumbers = new List<int>(); | |
primeNumbers.Add(1); | |
primeNumbers.Add(3); | |
primeNumbers.Add(5); | |
primeNumbers.Add(7); | |
var cities = new List<string>(); | |
cities.Add("NewYork"); | |
cities.Add("London"); | |
cities.Add("Mumbai"); |
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//Access individual item using indexer | |
List<int> numbers = new List<int>() | |
{ 1, 2, 5, 7, 8, 10 }; | |
Console.WriteLine(numbers[0]); // prints 1 | |
Console.WriteLine(numbers[1]); // prints 2 | |
Console.WriteLine(numbers[2]); // prints 5 | |
Console.WriteLine(numbers[3]); // prints 7 | |
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BlockingCollection<int> data = new BlockingCollection<int>(); | |
Task t1 = Task.Run(() =>{ | |
data .Add(1); | |
data .Add(2); | |
data .Add(3); | |
data .CompleteAdding(); | |
}); |
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Task t2 = Task.Run(() => | |
{ | |
try | |
{ | |
while (true) | |
Console.WriteLine(bc.Take()); | |
} | |
catch (InvalidOperationException) |
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IList<string> stringList = new List<string>() | |
{ | |
"C# Tutorials", | |
"TS Tutorials", | |
"Learn python", | |
"nodejs Tutorials" , | |
"adonisjs" | |
}; // LINQ Query Syntax | |
var result = stringList.Where(s => s.Contains("Tutorials")); |
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public class Grade{ | |
public int GradeId { get; set; } | |
public string GradeName { get; set; } | |
public ICollection<Student> Students { get; set; } | |
} |
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public class Student{ | |
public int ID { get; set; } | |
public string Name { get;set;} | |
public Grade Grade { get; set; } | |
} |
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public class SchoolContext: DbContext{ | |
public SchoolContext():base(){} | |
public DbSet<Student> Students; | |
public DbSet<Grade> Grades; | |
} |
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