Gets the data field name of the specified grid cell.
            
            
            
            
            
            
            
            '宣言
 
Function GetFieldNameByPos( _
   ByVal  As System.Integer, _
   ByVal  As System.Integer _
) As System.String
             
        
            
            System.string GetFieldNameByPos( 
   System.int ,
   System.int 
)
             
        
             
        
            パラメータ
- row
 
- Cell row.
 - col
 
- Cell col.
 
            
            戻り値の型
Returns data field name if success or null.