In this article we will simplifies case of default parameter of action methods. These can be possible in 2 ways.
1. Using default value attribute:
The Default Value attribute of System.Componetmodel namespace lets you specify a parameter value which was not container in route values and action method will use that default value.
Public ActionResult DoStuff(string name, [DefaultValue(MyEnum.Alpha)] MyEnum enumToUse)
{
//Your Code Here
}
2. Using optional parameter in C# 4.0:
To pass default value in action method, we can also use C#4.0 optional parameter feature.
Public ActionResult DoStuff(string name, MyEnum enumToUse=myEnum.Alpha)
{
//Your Code Here
}
We can use both ways to pass default value, but if we are thinking about performance then, need to use second options because, Default value attribute will involve some reflection. I hope this will help you.
