Indicates wether the character at the specified position in the specified string is a alphabet letter or digit.
            
            
            
            
            
            
            
            '宣言
 
Public Overloads Shared Function IsAlphaOrDigit( _
   ByVal  As System.String, _
   ByVal  As System.Integer _
) As System.Boolean
             
        
            
            public static System.bool IsAlphaOrDigit( 
   System.string ,
   System.int 
)
             
        
             
        
            パラメータ
- s
 
- A string.
 - index
 
- The character position in s.
 
            
            戻り値の型
true if the character at position index in s is a alphabet letter or digit; otherwise, false.