The Type or namespace could not be found

Question

0.00/5 (No votes)

See more:

Hello Friends

i have problem
i have make a folder DBHelper on root. there is two file for connection string and dataaccess like 1)dbHelper.cs and 2)DatabaseHelper.cs. now when i make a code in aspx file and try to access the class its not working. its give the error like

'the type or namespace cannot be found are you missing a using directive or an assembly reference'

can anyone tell me that how can i give the reference to my aspx.cs file to access all the class from DBhelper.cs and DatabaseHelper.cs

Thank You To all...

Posted 31-Jul-12 0:09am

Yatin chauhan

Add a Solution

4 solutions

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)

Sebastian T Xavier · Answer 1 · 2012-07-31T00:17:00

Solution 1

You need to add a reference of dbhelper dll to your project. Then only you can access it.

Posted 31-Jul-12 0:17am

Sebastian T Xavier

Comments

Yatin chauhan 31-Jul-12 6:30am

How Can i add that reference?
there is no any dll for that .its just a class file only.

Santhosh Kumar Jayaraman · Answer 2 · 2012-07-31T00:18:00

Solution 2

I think both are there in different namespaces. If you want to call the class use the namespace as well.

For eg.

C#

namespace My.Namespace
{
    public class MyClass
    {
        public void MyMethod()
        {
            My.Other.Namespace.MyotherClass obj=new My.Other.Namespace.MyotherClass();

            obj.mymethod();
        }
    }
}

namespace My.Other.Namespace
{
    public class MyOtherClass
    {
        private void mymethod()
{
}
    }
}

Posted 31-Jul-12 0:18am

Santhosh Kumar Jayaraman

Updated 31-Jul-12 0:20am

v2

Comments

Yatin chauhan 31-Jul-12 6:32am

Ye i think You right...but how can i solve that.

Santhosh Kumar Jayaraman 31-Jul-12 6:33am

Wat is the name space for this class dbHelper.cs??

_Amy · Answer 3 · 2012-07-31T00:49:00

Hi,
If you are working with web application then use this:
Put the namespace in your class-file like:

C#

namespace WbAppName.DBHelper
{
    class clsTest 
    {
       //Code goes here
    }
}

Try this in your asp.cs file:

C#

using System;
using WbAppName.DBHelper;
//here WbAppName will be your web application name
class
{
    clsTest obj=new clsTest();//Now you can access your class-file
}

--Amit

Sunil Kumar Pandab · Answer 4 · 2012-07-31T00:32:00

Solution 3

Simple, put DBHelper folder with class files inside App_Code folder. Than you can access easily.

Posted 31-Jul-12 0:32am

Sunil Kumar Pandab

Comments

Yatin chauhan 31-Jul-12 6:35am

oky .....now i delete the DBhelper folder and make this 2 class file directly in app_code folder in root directory.