Question

There is two variable was assigned the value of "003" and "00 3". And it was convert to byte[] as below.

Before:

myStr1 = "003"; // valid, there is no blank inserted.
myStr2 = "00 3"; // invalid, there is one blank character or multi blanks character inserted.

在转换后,如果发现有空白特性,则源体将改成星体。

myVal1 = "3";  // valid after convert
myVal2[0] = 0; // invalid, since the source myStr2 is invalid.
myVal2[1] = 1; // same as above.

现在,我需要根据换算结果确定消息来源是否有效或无效。我很想知道,如何说结果是一阵列。请让我提出一些建议。提前感谢。

显示SourVal型源价值

if (ResultVal is Byte Array) // how to translate the statement to C# code?
   SourVal is Invalid;
else if (ResultVal is still String type) // how to translate the statement to C# code?
   SourVal is valid;

ps: I failed to try the methods of typeof() and gettype() at my practice. I don t know how to use the methods. Or there is other better method for my validation.

Answer 1

可能使用:

        if (ResultVal is byte[]) {
           // SourVal is Invalid;
        } else if ( ResultVal is String ) { 
            //SourVal is valid;
        }

Answer 2

//Check the String for Blank spaces if found then don t convert

if(!str.Contains(" "))

{

//use the convert method 

}
else

{

//Write Message for an Invalid String

}

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