A good class for reading the configuration file, which is convenient for setting the configuration file

I haven't pasted things for a long time. I can paste things on demand to increase popularity!

Class: config. CS
Using system;
Using system. xml;
Using system. reflection;
Using system. configuration;
Using system. Windows. forms;

Namespace xmlconfig
{
Public class config: system. configuration. etettingsreader
{
Private xmlnode node;
Private string _ partition file;

Public String Upload File
{
Get {return _ response file ;}

Set {_ prop file = application. startuppath + "\" +
Value ;}
}

Public String getvalue (string key)
{
Return convert. tostring (getvalue (Key, typeof (string )));
}

Public new object getvalue (string key, system. Type stype)
{
Xmldocument Doc = new xmldocument ();
Object RO = string. empty;
Loaddoc (DOC );
String snode = key. substring (0, key. lastindexof ("//"));
// Retrieve the selected node
Try
{
Node = Doc. selectsinglenode (snode );
If (node! = NULL)
{

// XPath selects element that
Contains the key

Xmlelement targetelem =
(Xmlelement) node. selectsinglenode (key );
If (targetelem! = NULL)
{

RO =
Targetelem. getattribute ("value ");
}
}
If (stype = typeof (string ))
Return convert. tostring (RO );
Else
If (stype = typeof (bool ))
{

If (Ro. Equals ("true") |
Ro. Equals ("false "))

Return
Convert. toboolean (RO );
Else
Return false;
}
Else
If (stype = typeof (INT ))
Return convert. toint32 (RO );
Else
If (stype = typeof (double ))
Return convert. todouble (RO );
Else
If (stype = typeof (datetime ))
Return convert. todatetime (RO );
Else
Return convert. tostring (RO );
}
Catch
{
Return string. empty;
}
}

Public bool setvalue (string key, string Val)
{
Xmldocument Doc = new xmldocument ();
Loaddoc (DOC );
Try
{
// Retrieve the target node

String snode = key. substring (0,
Key. lastindexof ("//"));
Node = Doc. selectsinglenode (snode );
If (node = NULL)
Return false;
// Set element that contains the key

Xmlelement targetelem = (xmlelement)
Node. selectsinglenode (key );
If (targetelem! = NULL)
{
// Set new value

Targetelem. setattribute ("value ",
Val );
}

// Create new element
Key/value pair and add it
Else
{


Snode =
Key. substring (key. lastindexof ("//") + 2 );


Xmlelement entry =
Doc. createelement (snode. substring (0, snode. indexof ("[@"). Trim ());

Snode =
Snode. substring (snode. indexof ("'") + 1 );


Entry. setattribute ("key ",
Snode. substring (0, snode. indexof ("'")));

Entry. setattribute ("value", Val );
Node. appendchild (entry );
}
Savedoc (Doc, this. _ saved file );
Return true;
}
Catch
{
Return false;
}
}

Private void savedoc (xmldocument doc, string docpath)
{
// Save document
// Choose
Ignore if Web. config since it may cause Server sessions interruptions
If (this. _ your file. Equals ("Web. config "))
Return;
Else
Try
{

Xmltextwriter writer = new
Xmltextwriter (docpath, null );

Writer. Formatting =
Formatting. indented;
Doc. writeto (writer );
Writer. Flush ();
Writer. Close ();
Return;
}
Catch
{}
}

Public bool removeelement (string key)
{
Xmldocument Doc = new xmldocument ();
Loaddoc (DOC );
Try
{

String snode = key. substring (0,
Key. lastindexof ("//"));
// Retrieve the specified ettings Node
Node = Doc. selectsinglenode (snode );
If (node = NULL)
Return false;

// XPath select setting "add" element that contains
This key to remove
Xmlnode nD = node. selectsinglenode (key );
Node. removechild (ND );
Savedoc (Doc, this. _ saved file );
Return true;
}
Catch (exception ex)
{
Console. writeline (ex. Message );
Return false;
}
}

Private void loaddoc (xmldocument DOC)
{
// Check for type of config file being requested
/*
If (this. _ partition file. Equals ("app. config "))
{
// Use default app. config

This. _ Upload File =
(Assembly. getentryassembly (). getname (). Name + ". EXE. config ";
}
Else
If (this. _ your file. Equals ("Web. config "))
{
// Use Server Web. config

This. _ Upload File =
System. Web. httpcontext. Current. server. mappath ("Web. config ");
}
*/
// Load the document

Doc. Load (this. _ Upload File );
}

}
}

Usage:
Take:

Config = <SPAN class = "CS-keyword"> New </span> config (); <br> config. export File = <SPAN class = "CPP-string"> "app. config "</span>; <br> txtcountry. TEXT = <br> config. getvalue (<SPAN class = "CPP-string"> "// deletemetadata // Add [@ key = 'countryloc ']" </span> );

Write:

Config. setvalue (<SPAN class = "CPP-string"> "// appsettings // Add [@ key = '" </span> <br> + txtkey. text + <SPAN class = "CPP-string"> "']" </span>, txtvalue. text); <br> <SPAN class = "CS-comment"> </span> <br>

Delete:

Config. removeelement (<SPAN class = "CPP-string"> "// appsettings // Add [@ key = '" </span> + <br> txtkey2.text + <SPAN class =" CPP-string ">" '] "</span> );

For more information, see: http://www.codeproject.com/csharp/XmlConfig.asp