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I want to get a logFilePath value which I gave by hardcode in to appSettings. I am trying to reach the key value by
System.Configuration.Configuration rootWebConfig1 = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(null);
System.Configuration.KeyValueConfigurationElement customSetting = rootWebConfig1.AppSettings.Settings["azureLogUrl"];
string pathValue = customSetting.Value;
but I am getting null reference exception . How can I get the value from web.config file?
538
To access these values, there is one static class named ConfigurationManager, which has one getter property named AppSettings. We can just pass the key inside the AppSettings and get the desired value from AppSettings section, as shown below.
It is a configuration file where you store all your application settings. With the help of it, connection string becomes configurable i.e without changing build you can change the database to be connected.
Connection strings can be stored as key/value pairs in the connectionStrings section of the configuration element of an application configuration file. Child elements include add, clear, and remove.
Use:
string pathValue = ConfigurationManager.AppSettings["azureLogUrl"];
You do not need to cast this to string and check for nulls because documentation states:
Values read from the appSettings element of the Web.config file are always of type String. If the specified key does not exist in the Web.config file, no error occurs. Instead, an empty string is returned.
85
You can get the value from web.config like this :
string pathValue = WebConfigurationManager.AppSettings["azureLogUrl"].ToString();
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