Use a generic Custom Event class to replace Custom Event-defined parameters

Source: Internet
Author: User

In the system, we may have many custom events. If there are more events, we will define a lot of delegate.CodeReadability brings disaster.

 

In. net, we can inherit eventargs and use generics to define a common parameter class.

Public class parametereventargs <t>: eventargs
{
Public t parameter
{
Get;
Set;
}
}

T can be of any type. Class.

Use:
Public event eventhandler <parametereventargs <Object> modulecommand;

 

protected void firemodulecommand (modulecommandtype command)
{< br> If (this. modulecommand! = NULL)
{< br> This. modulecommand (this, new parametereventargs () {parameter = command});
}< BR >}

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