You can use WebConfigurationManager class defined in System.Web.Configuration namespace to retrieve values from a web.config file if you are working on a web application or System.Configuration.ConfigurationManager class in case you are working on a windows application.
e.g.
If your web.config has a this value
Then these can be read in manner below
string test = ConfigurationManager.AppSettings["test"];
string con1 = ConfigurationManager.ConnectionStrings["con1"];
To edit the web.config file
protected void EditConfigButton(object sender, EventArgs e)
{
Configuration objConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~");
AppSettingsSection objAppsettings = (AppSettingsSection)objConfig.GetSection("appSettings");
//Edit
if (objAppsettings != null)
{
objAppsettings.Settings["test"].Value = "newvalueFromCode";
objConfig.Save();
}
}
protected void EncryptConfigButton(object sender, EventArgs e)
{
//Encrypt
Configuration objConfig2 = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);
AppSettingsSection objAppsettings2 = (AppSettingsSection)objConfig.GetSection("appSettings");
if (!objAppsettings2.SectionInformation.IsProtected)
{
objAppsettings2.SectionInformation.ProtectSection("RsaProtectedConfigurationProvider");
objAppsettings2.SectionInformation.ForceSave = true;
objConfig2.Save(ConfigurationSaveMode.Modified);
}
}
protected void CreateConfigSectionButton(object sender, EventArgs e)
{
//Create
Configuration objConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~");
AppSettingsSection objAppsettings = (AppSettingsSection)objConfig.GetSection("appSettings");
objAppsettings.Settings.Add("newKey","newValue");
objConfig.Save(ConfigurationSaveMode.Modified);
}
protected void DecryptConfig_Click(object sender, EventArgs e)
{
Configuration objConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);
AppSettingsSection objAppsettings = (AppSettingsSection)objConfig.GetSection("appSettings");
if (objAppsettings.SectionInformation.IsProtected)
{
objAppsettings.SectionInformation.UnprotectSection();
objAppsettings.SectionInformation.ForceSave = true;
objConfig.Save(ConfigurationSaveMode.Modified);
}
}
//To Remove
protected void RemoveSectionButton_Click(object sender, EventArgs e)
{
Configuration objConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);
AppSettingsSection objAppsettings = (AppSettingsSection)objConfig.GetSection("appSettings");
objAppsettings.Settings.Remove("Location");
}
The important thing to note is that you can get any section of web.config in your code by using
AppSettingsSection objAppsettings = (AppSettingsSection)objConfig.GetSection("appSettings");
Just replace appSettings with the section name you want to play around with.
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| Author: Himanshu Sharma 28 May 2008 | Member Level: Bronze Points : 2 |
This is what i am looking for... Thanks a lot sir ,it is really helpful for me.We have got lot of thing on these posted article.
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| Author: Rakesh Kumar 06 Jun 2008 | Member Level: Bronze Points : 0 |
Excellent Article
Thanx sir
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| Author: Mahesh Raj 07 Jun 2008 | Member Level: Gold Points : 1 |
This is very good information,Continue posting such useful articles.
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