899 0
Object Oriented Programming (OOPS) concepts in c# with example
OOP stands for Object Oriented Programming, in this article I have introduced you the concept of Object-Oriented Programming in C# with example
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C# oops concepts in c# object oriented programming concepts c# c# object oriented programming tutorial c#-oops-concepts
885 1
how to get the Url of page which called Application_Error in ASP.NET

How can i get the url from where the error was originated and Application_Error was called inAsp.NET MVC C#, i have followed this link https://qawithexperts.com/questions/13/how-to-catch-all-error-in-c-mvc-error-handling , with the help of which i was able to catch all type of errors(404,500,any other) in MVC web-application but i am not able to get the original requested ur, because of which Application_Error was called.

How can i get the url, any idea?

 

...
Type
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asp.net MVC C# error
870 1
Unable to find package 'Abp.Owin' at source.

I am getting this error while trying to Install Abp.AspNetCore package using Nuget Package Manager console

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C# nuget-package nuget
847 1
How can I call base class constructor from derived class in C#?

I would like to know, suppose if I have inherited a Class A in Class B then How can I call the constructor of the base class(Class A) in C#?

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C# Call base constructor
823 0
Abstract class in C#
This article provides you detail explanation of c# abstract keyword and class, with working example in console application.
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C# c sharp abstract class abstract class and interface in c#

821 5
Count and Group by multiple columns in a foreach statement in C#

Hello,

I need to write a foreach statement (I don't have it yet) in which to group by and count the departments.

This is what I have done so far. How can I take the count of each column?

thank you

...
Type
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linq mvc C#
806 2
Getting error "Sequence contains no elements"

Hello, I am using the below code to fetch some data from database and getting the error "Sequence contains no elements"

 public static IEnumerable<CompanyLicenseKey> GetCompanyLicenseKey()
{
            OPEntities onepassDB = new OPEntities();

            //Let's get the onepass User model first
            var user = onepassDB.UserAccounts.Where(x => x.Email == OnePassUserAccountEmail).First(); //error in this line

            var userLicenseList = from c in user.CompanyProfiles
                                  join l in onepassDB.CompanyLicenseKeys.Where(x => x.IsDisabled == false)
                                  .Select(x => new { x.CRMID, x.LicenseKey, x.FriendlyName, x.ProductName })
                                  on new { c.CRMID } equals new { l.CRMID }
                                  select new Models.OnePass.CompanyLicenseKey { LicenseKey = l.LicenseKey, FriendlyName = l.FriendlyName, ProductName = l.ProductName };

            if (ProductName == "")
                return userLicenseList.ToList().OrderBy(x => x.FriendlyName);
            else
                return userLicenseList.Where(x => x.ProductName == ProductName).ToList().OrderBy(x => x.FriendlyName);
        }

Error image

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Type
Question
C# entity-framework asp.net-mvc
776 4
Find common multiples between element of array in C#?

Hi, how can I get the common multiples of all element of array for example I have this array 2 4 3 . And I want to get the common multiples I do this code but not working. Can someone help me please. Thanks.

...
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C# Count common multiples
770 1
How to convert byte[] array to string and Vice versa in C#?

Hello, I would like to know how to convert byte[] array to string and string to byte[] array in C#, using the best possible method, I know there are several links and methods available on the internet but I would like to know best and easy method for this, thanks.

...
Type
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C# byte array to string
765 1
Error : Wrong number of indexes '2' inside [], expected '1' Compilation failed in C# 2-D array

Hi, I am trying to run the below C# code for martix, but getting error

...
Type
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C# multi-dimensional array

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