I have a property that is of type array. This array must have two dimensions being 7 rows and 4 columns, ie AnyType [7,4] , code:
public class WorkingDays
{
public TimeSpan[,] Times { get; set; }
}
How do I set a size by forcing an array of 7x4 to be passed, ie [7,4] ? I know that you can validate set but I think of something like C where you already define the size in the type declaration.
This is not possible.
As you expect this property to be " setada " by the consumer of the code, the best alternative would be to validate in the%
using System;
public class WorkingDays
{
private TimeSpan[,] _times;
public TimeSpan[,] Times
{
get { return _times; }
set
{
if (value.GetLength(0) != 7 || value.GetLength(1) != 4)
throw new Exception("Tamanho de matriz inválido");
_times = value;
}
}
}
public class Program
{
public static void Main()
{
var wd = new WorkingDays();
try
{
wd.Times = new TimeSpan[8, 4];
}
catch(Exception ex)
{
Console.WriteLine(ex.Message); //Só pra não quebrar o exemplo
}
wd.Times = new TimeSpan[7, 4];
}
}
As a matter of curiosity, you can define arrays with a fixed size in unsafe contexts. However, in addition to being highly recommended, it is not possible to do this with multidimensional arrays, in classes (only for struct ) and contain types outside of the predefined
An example:
void Main()
{
var wd = new UWorkingDays();
unsafe{
Console.WriteLine(wd.Times[0]);
}
}
public unsafe struct UWorkingDays
{
public fixed int Times[7];
}