Delegate FormulaEngine.LibraryFunction
  
  Delegate used to define functions that you add to the function library.
 
  
  
  Assembly: Syncfusion.Spreadsheet.Windows.dll
  
  
    public delegate string LibraryFunction(string args);
   
  Parameters
  
    
      
        | Type | 
        Name | 
        Description | 
      
    
    
      
        | System.String | 
        args | 
         | 
      
    
  
  Returns
  
    
      
        | Type | 
        Description | 
      
    
    
      
        | System.String | 
        Resultant value. 
 | 
      
    
  
  Constructors
  
  
  
  
  
  
  
  Declaration
  
    public LibraryFunction(object object, IntPtr method)
   
  Parameters
  
    
      
        | Type | 
        Name | 
        Description | 
      
    
    
      
        | System.Object | 
        object | 
         | 
      
      
        | System.IntPtr | 
        method | 
         | 
      
    
  
  Methods
  
  
  
  
  
  
  
  Declaration
  
    public virtual IAsyncResult BeginInvoke(string args, AsyncCallback callback, object object)
   
  Parameters
  
    
      
        | Type | 
        Name | 
        Description | 
      
    
    
      
        | System.String | 
        args | 
         | 
      
      
        | System.AsyncCallback | 
        callback | 
         | 
      
      
        | System.Object | 
        object | 
         | 
      
    
  
  Returns
  
  
  
  
  
  
  
  Declaration
  
    public virtual string EndInvoke(IAsyncResult result)
   
  Parameters
  
    
      
        | Type | 
        Name | 
        Description | 
      
    
    
      
        | System.IAsyncResult | 
        result | 
         | 
      
    
  
  Returns
  
  
  
  
  
  
  
  Declaration
  
    public virtual string Invoke(string args)
   
  Parameters
  
    
      
        | Type | 
        Name | 
        Description | 
      
    
    
      
        | System.String | 
        args | 
         | 
      
    
  
  Returns