Edit

<add> element for <appSettings>

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Adds a custom application setting.

<configuration>
  <appSettings>
    <add>

Syntax

<appSettings>
  <add key="Key of custom setting" value="Value of custom setting" />
</appSettings>

Attributes

Description
key Required attribute.

Specifies the name of the key to add.
value Required attribute.

Specifies the value of the key to add.

Parent element

Description
<appSettings> Contains custom application settings, such as file paths, XML Web service URLs, or any other custom configuration information for an application.

Child elements

None

Example

The following example shows how to add a custom configuration setting for the application's name:

<appSettings>
  <add key="ApplicationName" value="MyApplication" />
</appSettings>

The following example uses the <add> element to define two compatibility settings in an ASP.NET application:

<appSettings>
  <add key="AppContext.SetSwitch:Switch.System.Globalization.NoAsyncCurrentCulture" value="true" />
  <add key="AppContext.SetSwitch:Switch.System.Uri.DontEnableStrictRFC3986ReservedCharacterSets" value="true" />
</appSettings>

See also