Failing to read value from web.config

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Hi,

I am using the recommended way to read values from the web.config file (I think). This works fine when using the web server built into Visual Studio but fails if I use the local IIS server. This is the code I am using:

C#

public class Global : System.Web.HttpApplication
{
    protected void Application_Start( object sender, EventArgs e )
    {
        KeyValueConfigurationElement settingKeyValuePair;
        System.Configuration.Configuration rootWebConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration( "/" );
        settingKeyValuePair = rootWebConfig.AppSettings.Settings[ "DomainForEmails" ];
        var v = settingKeyValuePair.Value;
}

The variable rootWebConfig comes back as NULL. I have no idea why. Any help or advice would be very much appreciated.

Kind wishes, Patrick

Posted 17-Mar-12 1:04am

Patrick Skelton

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Ganesan Senthilvel · Answer 1 · 2012-03-17T01:23:00

Solution 1

Have you set appsetting as:

HTML

<appsettings>
     <add key="XmlFilePath" value="C:\yourpath here" /> 
</appsettings>

If it is already set, then debug the value on WebConfigurationManger object.

Posted 17-Mar-12 1:23am

Ganesan Senthilvel

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Patrick Skelton 17-Mar-12 8:13am

Hi,

Thank you for the reply.

It is not the reading of a value that fails but the actual reading of the web.config file itself. I can't debug this because, for some reason, I cannot hit a breakpoint in Global.asax (though I can hit breakpoints elsewhere in the same application).

- Patrick