true, if the ASPxPivotGrid control is locked; otherwise, false.
The ASPxPivotGrid.BeginUpdate and ASPxPivotGrid.EndUpdate methods use an internal counter to implement the required functionality. The counter's initial value is 0. Each call of the BeginUpdate method increments the counter, each call of the EndUpdate decrements the counter and if its new value is zero, change notifications are enabled. Use the IsUpdateLocked property to determine the collection state. If the counter's value is 0 (zero), the IsUpdateLocked method returns false.