I have been trying to get a .net application to use the .Dependents property of the activecell. It works perfectly if there are dependents however if the cell has no dependents then the code stops executing - no errors, no way to catch etc. I have tried with VB and C#. I also tried the same thing in VBA and get a run time error 1004 - Application-defined or object-defined error. The issue is that there doesn't seem to be a way to find out if a cell has dependents. C# code Excel.Range r = this.Application.ActiveCell.Dependents; VB Code If (Me.Application.ActiveCell.Dependents IsNot Nothing) Then Any ideas on how I can get past this error or if there is another way to find out if a cell has dependents before calling this property. Thanks Duncan