COnvert String Variable to COnst string in vb.net

Question

1.00/5 (1 vote)

See more:

Dear All,

I need to pass a string value to const string value.I will attach the code below.While I pass the string variable to const string "constant expression required " error getting.

VB

Dim s As String = "sss"
Const ZSTransID As String = s

Please help me to solve

Regards
Sreejith

Posted 15-Nov-14 5:26am

SreejithAchutan

Updated 15-Nov-14 10:12am

Nelek

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Manas Bhardwaj · Answer 1 · 2014-11-15T05:34:00

Solution 1

I am afraid that first you need to understand what Constant is in .Net. Read the documentation is MSDN here:

http://msdn.microsoft.com/en-us/library/zb8fth98.aspx[^]

In you above example, you need to understand that an assignment to a constant can only be a compile time constant. This is what you could still do (it's in C#), but basically means that you have to declare s as constant as well.

I am not sure if in practice that would help you.

C#

const string s = "sss";
const string ZSTransID = s;

Btw, you might want to look at the ReadOnly [^]keyword as well and compare it with Const.

Const and Readonly Keywords[^]

Posted 15-Nov-14 5:34am

Manas Bhardwaj

v2

Comments

Sergey Alexandrovich Kryukov 15-Nov-14 20:35pm

5ed.
—SA

Manas Bhardwaj 16-Nov-14 4:33am

thx SA!

SreejithAchutan 16-Nov-14 0:41am

Thanks for your reply.But actaully I have a value in string format(Random Number).I need to pass this string value to a const string.

I would like to know about that How to convert the string variable to const string.

Manas Bhardwaj 16-Nov-14 4:10am

If you read the my answer, it states that it wont be possible. And I am wondering why would you pass a variable string to constant?