Some of the C# features that
will help you write cleaner code
1. Initialize Constructor
Common way
class BLWriteCleanerCode
{
public DateTime
CreatedDate { get; }
public List<Employee>
Employees { get; }
public BLWriteCleanerCode()
{
CreatedDate
= DateTime.Now;
Employees
= new List<Employee>();
}
}
With C# 6, you can initialize the property
directly
class BLWriteCleanerCode
{
public DateTime
CreatedDate { get; } = DateTime.Now;
public List<Employee>
Employees { get; } = new List<Employee>();
}
2. Create Dictionary
Common way
var employees
= new Dictionary<int, string>
{
{ 1, "John" },
{ 2, "Mathy" }
};
New way
var employees
= new Dictionary<int, string>
{
[1]
= "John",
[2]
= "Mathy"
};
3. Using String
Common way
var emploueeData
= String.Format("{0} ({1})",
emp.EmployeeID, emp.EmployeeName);
New way
var emploueeData
= $"{emp.EmployeeID}{emp.EmployeeName}";
4. Using Null-conditional Operator
Common way
Employee emp;
List<Employee> empCollection = new List<Employee>();
if (empCollection != null)
emp = empCollection[0];
New way
emp =
empCollection?[0];
Common way
if (empCollection[0] != null)
{
if (empCollection[0].Address != null)
{
address = empCollection[0].Address[0].Address1;
}
}
New way
address
= empCollection[0]? .Address[0]?.Address1??"" ;
