Gets or sets the precedents nodes which indicates what nodes affect the value of the current node.
            
            
            There are following formulas:
    
        
             | 
            Identity | 
            Formula | 
        
        
            | A1 | 
            =B2+B3 | 
        
        
            | A2 | 
            =SUM(B:B) | 
        
        
            | B2 | 
            =C3+C4 | 
        
        
            | B3 | 
            =0 | 
        
        
            | C3 | 
            =1 | 
        
        
            | C4 | 
            =2 | 
        
    
Then the Precedents for each identity should be:
    
        
             | 
            Identity | 
            Precedents | 
        
        
            | A1 | 
            B2, B3 | 
        
        
            | A2 | 
            B:B | 
        
        
            | B2 | 
            C3, C4 | 
        
        
            | B3 | 
            n/a | 
        
        
            | C3 | 
            n/a | 
        
        
            | C4 | 
            n/a | 
        
    
            
             
            
            Target Platforms: Windows 7, Windows 8 Desktop, Windows Vista SP1 or later, Windows Server 2000, Windows 2000 Professional (SP4), Windows XP (SP2), Windows 2008, Windows 2003 Server (SP1)