Consult about c # constructor reference order.-CodePudding

About the constructor, the following content is I already know:

 
Public partial class Form1: Form 
{
Public _click ()//the default structure parameter 
{
InitializeComponent(); 
} 
Public _click (string filePath) : this ()//take the full path constructor 
{
File. The Open (filePath, FileMode. Open); 
} 
Public _click (string filePath, string [] Para) : this ()//take synthetic route constructor 
{
String FilePath=Path.Com bine (FilePath string. Join (", ", Para)); 
File. The Create (FilePath); 
File. The Open (FilePath, FileMode. Open); 
} 
}

The above content is no problem, but not enough concise, to code reuse, I want to be is in the third constructor referenced in the second constructor, similar to the following code

 
Public _click (string filePath, string [] Para) : this ()//take synthetic route constructor 
{
String FilePath=Path.Com bine (FilePath string. Join (", ", Para)); 
File. The Create (FilePath); 
_click (FilePath);//this is clearly wrong, for realizing the function of the code 
//this (FilePath), it is also wrong! 
}

Excuse me, master how to implement, the File. The Open () represents a lot of code process

CodePudding user response:

Public _click (string filePath, string [] Para) : this (filePath)//need to synthetic path constructor
{
String FilePath=Path.Com bine (FilePath string. Join (", ", Para));
File. The Create (FilePath);
File. The Open (FilePath, FileMode. Open);
}

CodePudding user response:

Overloaded constructor can call each other

Public _click (string filePath) : this (string xx, xx) string

CodePudding user response:

 public partial class Form1: Form 
{
Public _click ()//the default structure parameter 
{
InitializeComponent(); 
} 
Public _click (string filePath) : this (filePath, null)//with the full path constructor 
{
} 
Public _click (string filePath, string [] Para) : this ()//take synthetic route constructor 
{
If (Para!=null) 
{
FilePath=Path.Com bine (filePath string. Join (", ", Para)); 
} 
File. The Create (filePath); 
File. The Open (filePath, FileMode. Open); 
} 
}

CodePudding user response:

The

reference exile on the second floor of the blade -- raven's reply:

overloaded constructor can call each other

Public _click (string filePath) : this (string xx, xx) string

I want to use _click (string filePath, string [] Para) create a constructor;
In Form1 (string filePath, string [] Para) internal call _click (string filePath)

CodePudding user response:

A concise, don't put the time and energy in the above,

CodePudding user response:

 
Public _click (string filePath, string [] Para) : 
This (((Func) (()=& gt; {
String FilePath=Path.Com bine (FilePath string. Join (", ", Para)); 
File. The Create (FilePath); 
Return FilePath. 
()) {}}))