'set default value in class constructor C#
I need a default value set and many different pages access and update..initially can I set the default value in the class constructor like this? What is the proper way to do this in C# .NET?
public class ProfitVals
{
private static double _hiprofit;
public static Double HiProfit
{
get { return _hiprofit; }
set { _hiprofit = value; }
}
// assign default value
HiProfit = 0.09;
}
Solution 1:[1]
You can put it in the declaration: private static double _hiprofit = 0.09;
Or if it's a more complicated initialization you can do it in the static constructor:
private static double _hiprofit;
static ProfitVals()
{
_hiprofit = 0.09;
}
The former is preferred as the latter pays a performance penalty: http://blogs.msdn.com/b/brada/archive/2004/04/17/115300.aspx
Solution 2:[2]
No, you would have to surround the assignment to the property with an actual static constructor like so:
class ProfitVals
{
public static double HiProfit { ... }
static ProfitVals() // static ctor
{
HiProfit = 0.09;
}
}
Note: a static constructor can not be declared private/public and cannot have parameters.
Solution 3:[3]
You're almost there, you just need to use a constructor.
public class ProfitVals {
private static double _hiprofit;
public static Double HiProfit
{
get { return _hiprofit; }
set { _hiprofit = value; }
}
public ProfitVals() {
// assign default value
HiProfit = 0.09;
}
}
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
Solution | Source |
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Solution 1 | |
Solution 2 | |
Solution 3 | 48klocs |