AppSettingsReader Class
Definition
Important
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Provides a method for reading values of a particular type from the configuration.
public ref class AppSettingsReader
public class AppSettingsReader
type AppSettingsReader = class
Public Class AppSettingsReader
- Inheritance
-
AppSettingsReader
Examples
The following example creates a configuration file that contains the <appSettings>
section, and then uses the AppSettingsReader to read the settings just generated.
using System;
using System.Configuration;
class Program
{
static void Main(string[] args)
{
var reader = new AppSettingsReader();
var stringSetting = reader.GetValue("String setting", typeof(string));
Console.WriteLine("String setting: " + stringSetting);
var dateTimeSetting = reader.GetValue("DateTime setting", typeof(DateTime));
Console.WriteLine("DateTime setting: " + dateTimeSetting);
try
{
var missingSetting = reader.GetValue("Int setting", typeof(Int32));
}
catch (InvalidOperationException e)
{
Console.WriteLine("Missing key error: " + e.Message);
}
Console.WriteLine("Press any key to continue");
Console.ReadKey();
}
}
The following example demonstrates a configuration file used by the previous example.
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<appSettings>
<add key="String setting" value="String retrieved from App.Config"/>
<add key="Date setting" value="Thursday, December 01, 2005 12:53:56 PM"/>
</appSettings>
</configuration>
Constructors
AppSettingsReader() |
Initializes a new instance of the AppSettingsReader class. |
Methods
Equals(Object) |
Determines whether the specified object is equal to the current object. (Inherited from Object) |
GetHashCode() |
Serves as the default hash function. (Inherited from Object) |
GetType() |
Gets the Type of the current instance. (Inherited from Object) |
GetValue(String, Type) |
Gets the value for a specified key from the AppSettings property and returns an object of the specified type containing the value from the configuration. |
MemberwiseClone() |
Creates a shallow copy of the current Object. (Inherited from Object) |
ToString() |
Returns a string that represents the current object. (Inherited from Object) |
Applies to
See also
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