<div>
You can make some checkings, like the valid characters:<br />
ABCDEFGHIJKLMNOPQRSTUVWXYZ<wbr />abcdefghij<wbr />klmnopqrst<wbr />uvwxyz0123<wbr />456789+/ plus the = sign<br />
<br />
also have a look to the following explanation about how a base64 string is made:<br />
<a href="http://en.wikipedia.org/wiki/Base64" rel="ugc">http://en.wikipedia.org/wiki/Base64</a><br />

</div>


<div>
Hi, <br />
<br />
i'm agree with you but suppose the application receive a string like this : &quot;Hello=/Script&quot;<br />
kind of valid base64?!<br />
<br />
Regards.
</div>


<div>
<div class="content wysiwyg-content">
Hi experts, <br />
<br />
Is there a way to check/parse a string and see if it is a valid base64 ?<br />
<br />
because i don't want to do a try/Catch, guess it will slow my system if we don't have base64 string...<br />
<br />
<br />
Regards
</div>
</div>


Hi experts, 

Is there a way to check/parse a string and see if it is a valid base64 ?

because i don't want to do a try/Catch, guess it will slow my system if we don't have base64 string...


Regards

You can make some checkings, like the valid characters:
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/ plus the = sign

also have a look to the following explanation about how a base64 string is made:
http://en.wikipedia.org/wiki/Base64


Hi, 

i&#39;m agree with you but suppose the application receive a string like this : &quot;Hello=/Script&quot;
kind of valid base64?!

Regards.

How can i parse and check if a string is in BASE64 format?

Hi experts, 

Is there a way to check/parse a string and see if it is a valid base64 ?

because i don&#39;t want to do a try/Catch, guess it will slow my system if we don&#39;t have base64 string...


Regards

The .NET Framework is not specific to any one programming language; rather, it includes a library of functions that allows developers to rapidly build applications. Several supported languages include C#, VB.NET, C++ or ASP.NET.

.NET Programming

Visual Basic .NET (VB.NET) is an object-oriented programming language implemented on the .NET framework, but also supported on other platforms such as Mono and Silverlight. Microsoft launched VB.NET as the successor to the Visual Basic language. Though it is similar in syntax to  Visual Basic pre-2002, it is not the same technology,