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The type or namespace name 'DataClasses1DataContext' could not be found (are you missing a using directive or an assembly reference?)

am getting this error for the below code

C#

{
DataClasses1DataContext _context = new DataClasses1DataContext();
        
        var dateTime = DateTime.Now.ToString();
        var events = from a in _context.riya()
                    select a;
}

why this error arising?

Posted 7-Feb-12 22:06pm

idhris2011

Updated 7-Feb-12 22:10pm

walterhevedeich

v2

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CRDave1988 8-Feb-12 4:12am

what is DataClasses1DataContext?
r u using LINQ?

idhris2011 8-Feb-12 4:23am

s...am using linq

2 solutions

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Sergey Alexandrovich Kryukov · Answer 1 · 2012-02-07T22:16:00

This is not a class supplied with .NET. This is probably the auto-generated class you borrowed from some code or development walk-through article, like this one:

http://www.devx.com/dotnet/Article/36714/1954[^].

If it exists in some article, it does not mean it should exist in your code you are trying to compile at this moment. Anyway, in your C# code there is nothing which mystically appears as a result of activity or different Designers or Wizards. Everything is declared and can be found in code. If not, it won't compile. As simple as that.

That said: you are doing something wrong in principle. You should not follow any kinds of instruction like a blind-folded one. I would advise you do everything with you own hands and only if your perfectly understand every line you right. When you are comfortable with that, all kinds of tool can assist you sometimes. Not sooner.

—SA

jai000 · Answer 2 · 2012-02-07T22:15:00

Solution 1

In which assembly "DataClasses1DataContext" exists?

I guess, you haven't added the reference of assembly in which DataClasses1DataContext exists.
Add reference of same assembly and try again

Hope this might help you...

Posted 7-Feb-12 22:15pm

jai000