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Solved, C# Common Language Runtime Detected An Invalid Program.

December 01, 2022

C# Common Language Runtime Detected An Invalid Program.


This is the oddest programming problem I've encountered in a long time.


After updating to version 15.8.0 of Visual Studio 2017 I am getting an exception when running my ASP.NET Webforms application.

The solution build without issue, but the error occurs as soon as run the application in the browser.

The following is a portion of the code (it is all simple stuff):


C# code
Code

I can still build and build the dll without any problems, but when I use the created dll, I receive the following error:

Exception and stack trace:
System.InvalidProgramException: Common Language Runtime detected an invalid program.
at ASP.errorpage_aspx..ctor()
at __ASP.FastObjectFactory_app_web_pugar0lj.Create_ASP_errorpage_aspx()
at System.Web.Compilation.BuildResultCompiledType.CreateInstance()
at System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp)
at System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath)
at System.Web.UI.PageHandlerFactory.GetHandler(HttpContext context, String requestType, String virtualPath, String path)
at System.Web.HttpApplication.MaterializeHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)


Solution:

  • Rename C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Team Tools\Performance Tools\vsinstr.exe to C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Team Tools\Performance Tools\vsinstr.exe.broken
  • Rename C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Team Tools\Performance Tools\vsinstr.legacy.exe to C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Team Tools\Performance Tools\vsinstr.exe
  • Rebuild the solution.

This worked for me hope this will work for you also.




First 5 C++ Program. Printing Hello World.

November 02, 2022

 1. Write a program to print “ Welcome to the world of C” and “ My first C Program “ in two printf statements. Use ‘\n’ in printf statement and see what happens when we do not use ‘\n’.

Solution :- 

#include<stdio.h> 
#include <conio.h>
void main() {
 clrscr(); 
printf("welcome to the world of c\n"); 
printf("My first c program\n"); 

getch(); 

} 

OUTPUT:

First C Program
First C Program.


2. Write a program using C++ to print your name and city using multiline comment.

Solution :- 

#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
cout<<"my name is Rahul Kumar"<<endl;
cout<<"i am from Khagaria";

/*Here Rahul is my name.
and khagaria is the city where i born*/
getch();

}

OUTPUT:-

Output Program 2
C++ Print and use Comment.


3. Write a program to calculate the simple interest for input of principal, rate and time. (Hint : (P*R*T)/100)

Solution :- 

#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
intp,r,t,si;
cout<<"Enter the principal value p:";
cin>>p;
cout<<"Enter the rate of intrest r:";
cin>>r;
cout<<"Enter the time t:";
cin>>t;
si=(p*r*t)/100;
cout<<"The simple intrest of given value"<<si;
getch();
}

OUTPUT:-

Calculate the simple interest
Simple Interest program.

4. Write a program to swap the values of two variable using a third variable.

Solution :- 

#include<iostream.h>
#include<conio.h>
void main ()
{
 clrscr ();
 inta,b,c;
 cout<<"Enter the values of a & b";
 cin>>a>>b;
     c=a;
 a=b;
 b=c;
 cout<<"After swaping the value of a";
 cout<<a<<endl;
 cout<<"After swaping the value of b";
 cout<<b;
 getch();
}

OUTPUT:-

Swapping using third variable.
Swapping using third variable.

5. Write a program to swap the values of two variable without using a third variable.

Solution :- 

#include<iostream.h>
#include<conio.h>
void main ()
{
 clrscr ();
 inta,b;
 cout<<"Enter the values of a & b";
 cin>>a>>b;
 a=a+b;
 b=a-b;
 a=a-b;
 cout<<"After swaping the value of a";
 cout<<a<<endl;
 cout<<"After swaping the value of b";
 cout<<b;
 getch();
}

OUTPUT:-

Swapping without third variable.
Swapping without third variable




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Most Asked C# Interview Programs

October 28, 2022
In C# interviews, it is a common practice to ask for the coding questions. Today we will see the top 10 most Asked interview coding questions of C#.

C# Icon
C# Icon



 1. Print the String when input 2A3B4C then output AABBBCCCC? 

Ans:- 
 using System; 
 public class Test
  {
   public static void Main() 
     { 
        String s = "2A3B4C"; 
        String ans = ""; 
        for(int i = 0; i < s.Length;)
        {  
          int num = 0; 
         while(s[i] >= '0' && s[i] <= '9')
         { 
           num = num * 10 + (s[i] - '0');
            i++; 
          }
          while(num-- > 0)
           { 
            ans += s[i];
             } 
               i++; 
           } 
           Console.WriteLine(ans);
       }
 }

2. Check Whether the Entered Number is an Armstrong Number or Not.

Ans:- An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself.

/*
 * C# Program to Check Whether the Entered Number is an Armstrong Number or Not
 */ 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
namespace ConsoleApplication6
{
    class Program
    {
        static void Main(string[] args)
        {
            int number, remainder, sum = 0;
            Console.Write("enter the Number");
            number = int.Parse(Console.ReadLine());
            for (int i = number; i > 0; i = i / 10)
            {
                remainder = i % 10;
                sum = sum + remainder*remainder*remainder;
 
            }
            if (sum == number)
            {
                Console.Write("Entered Number is an Armstrong Number");
            }
            else
                Console.Write("Entered Number is not an Armstrong Number");
            Console.ReadLine();
        }
     }
  }
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