XmlNodeChangedEventArgs.OldValue Property

Definition

Gets the original value of the node.

C#
public string OldValue { get; }
C#
public string? OldValue { get; }

Property Value

The original value of the node. This property returns null if the node is neither an attribute nor a text node, or if the node is being inserted.

If called in a NodeChanging event, OldValue returns the current value of the node that will be replaced if the change is successful. If called in a NodeChanged event, OldValue returns the value of node prior to the change.

Applies to

Product Versions
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9
.NET Framework 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 2.0, 2.1
UWP 10.0