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ConfigurationElementCollection.BaseAdd Method (ConfigurationElement)

Adds a configuration element to the ConfigurationElementCollection.

Namespace:  System.Configuration
Assembly:  System.Configuration (in System.Configuration.dll)

protected virtual void BaseAdd(
	ConfigurationElement element
)

Use the BaseAdd method to add a new ConfigurationElement to the collection. Override it in a derived class if custom behavior is required when the element is added.

When adding, an element is considered a duplicate only if the keys are identical but the values are different. Elements with identical keys and values are accepted silently because the elements do not compete. However, an element with an identical key but a different value cannot be added because there is no logic to determine which of the competing values should be honored.

The following code example shows how to override the BaseAdd method and how to call it from an Add method.

public void Add(UrlConfigElement url)
{
    BaseAdd(url);

    // Your custom code goes here.

}

.NET Framework

Supported in: 4.6, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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