Create and Use a Custom Config File: ASP Alliance

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Create and Use a Custom Config File

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by Steven Archibald
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Article Contents:

Retrieving Our Valuable Data

To demonstrate retrieving the separated information, create a new webform named TestNewConfigurationFile. I could have used a longer name, but brevity is considered a virtue. Don’t bother to put any controls on it.

Enter the following code in the Page_Load method of your .aspx.cs file.

Listing 5 – The Web Form Code

private void Page_Load(object sender, System.EventArgs e)
{
      string myNumber = Utility.GetCustomConfigValue("appReleaseSection", "ReleaseNumber");
      string myDate = Utility.GetCustomConfigValue("appReleaseSection", "ReleaseDate");
      Response.Write("Release: " + myNumber + "<br />Date: " + myDate);
}

Build and run!

Bing, Bam, Boom – we be done!

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User Comments

Title: Thanks
Name: Rauf
Date: 2009-12-22 7:03:28 AM
Comment:
Very useful article. keep the good work going
Cheers!!

Title: Thanks
Name: Fawad
Date: 2009-11-20 10:22:09 AM
Comment:
Thanks buddy, loved the article. Here is a VB counterpart if anyone needs it:
===========================================================
********* Get Config Values ******************************
===========================================================
Public Shared Function GetConfigValue(ByVal strSectionName As String, ByVal strKeyName As String) As String

Dim temp As String = Nothing

Dim myData As NameValueCollection = DirectCast(ConfigurationManager.GetSection(strSectionName), _
NameValueCollection)

If myData Is Nothing Then
'Section name not found
Throw New NullReferenceException("Section name not found:" & strSectionName)
Else
'section found, try to get the value
temp = myData.Get(strKeyName)

If temp Is Nothing Then
'Key name not found, throw new exception
Throw New NullReferenceException("Key name not found: " & strKeyName)
End If
End If

End Function

===========================================================
**** Write Config Values (NOT TESTED BUT SHOULD WORK) ****
===========================================================

Public Shared Function UpdateConfigValue(ByVal strConfigFilePath As String, ByVal strSectionName As String, _
ByVal strKeyName As String, ByVal strValue As String) As Boolean

Dim xmlDoc As New XmlDocument
Dim flag As Boolean = False

xmlDoc.Load(strConfigFilePath)

For Each node As XmlNode In xmlDoc.Item(strSectionName)

'Look for add attribute
If node.Name = "add" Then

'see if we have specified key in config file
If node.Attributes.GetNamedItem("key").Value = strKeyName Then

'Key found, upd

Title: value not updated
Name: monaung
Date: 2009-05-10 2:44:36 AM
Comment:
if i am chaging the value in appReleaseSection in Cutom.Config file it is not reflecting. it gives me previous entered value why?
please can you mail me back how can i do this?
mon.aung@gmail.com

Title: config file not web.config/app.config
Name: sixYo
Date: 2009-04-07 12:51:29 AM
Comment:
you can store the data in a xml file without web.config / app.config

http://www.codeproject.com/KB/aspnet/CustomXmlConfigForAspNet.aspx

Title: Little Change
Name: ACostaF
Date: 2008-04-18 9:51:47 AM
Comment:
Good article. In order to MSDN Library suggestion, you must use System.Configuration.ConfigurationManager.GetSection instead of System.Configuration.ConfigurationSettings.GetConfig as ConfigurationSettings is obsolete.

Title: Need your help
Name: Sukki
Date: 2008-03-01 12:17:10 PM
Comment:
it works well for me but when i try to add a subsection it fails. How can i handle this

Title: Good One
Name: Rajesh
Date: 2007-07-24 6:16:13 AM
Comment:
Thanks Steven Archibald, this article was good and helped me a lot.

In addition to this, i wanted to use Release.xml file rather than Release.config file. Is the code works same for the .xml file?

Anticipating your response.

Rajesh

Title: Thank you!
Name: Chris Bidwill
Date: 2007-05-23 10:27:30 PM
Comment:
Thanks, this was a huge help. From all the other posts I've found out there it looked like creating custom sections was a huge pain (so much it was easier just to parse the xml doc). This saved me a lot of frustration.

Title: Good Work
Name: Satyam Kumar
Date: 2006-10-18 3:04:39 PM
Comment:
Thanks to aspalliance team.

Nice work done by team that i was looking for long time.

If any addition or Enhancement then pls let me know.

Satyam
satyam@rategain.com

Title: Custom.Config File
Name: Satyadeep Behera
Date: 2006-06-16 4:57:48 AM
Comment:
after updating the Custom.config file can i able to get the
new values that has been saved at run time, i have dataaccess layer and i want to fix this value here.
please help me.

Title: Custom.Config File
Name: Satyadeep Behera
Date: 2006-06-15 3:21:08 AM
Comment:
but is if i am chaging the value in appReleaseSection in Cutom.Config file it is not reflecting it gives me previous entered value why?
please can you mail me back how can i do this?
bsatyadeep@zilog.com