Gets or sets the path to a Double value on the source task item to serve as the task completion rate, or null to indicate that the completion rate is not provided by the source task item. Task completion rate is computed automatically based on effort and completed effort. This is a dependency property.

[BindableAttribute(true)]
public string CompletionMemberPath { get; set; }

<BindableAttribute(True)> _
Public Property CompletionMemberPath As String