C# Pract

https://code.labstack.com/csharp

1> write a console program in c# to create delegate which display 1 to 100 odd number

using System;

public class Code 
{
  public static void Main(string[] args)
  {
    int i =0;
    for(i=0;i<100;i++){
      if(i%2!=0)
    		Console.Write(i + " ");
    }
    
  }
}	

https://code.labstack.com/Uvs5xFvC
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2> write a console program in c# to accept student name and age if the students age is not between 20 and 25 genearte user defined exception invalid age

using System;  
public class InvalidAgeException : Exception  
{  
    public InvalidAgeException(String message)  
        : base(message)  
    {  
  
    }  
}  
public class TestUserDefinedException  
{  
    static void validate(int age)  
    {  
        if (age < 18)  
        {  
            throw new InvalidAgeException("Sorry, Age must be greater than 18");  
        }  
    }  
    public static void Main(string[] args)  
    {  
       Console.Write("Enter your age ");
      	age = Convert.ToInt32(Console.ReadLine());
        try  
        {  
            validate(age);  
        }  
        catch (InvalidAgeException e) { Console.WriteLine(e); }  
        Console.WriteLine("Age is Valid");  
    }  
}  

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3>write a C# program design a form which will      show 3 radio buttons to check if the number is the palindrome or is a odd or prime
 number and display appropriate msg

// C# program to check whether a number
// is Palindrome or not.

using System;
public class GFG
{
  static int isPrime(int n){
    		int a=0;
    		for (int i = 1; i <= n; i++) {
            if (n % i == 0) {
               a++;
            }
         }
         if (a == 2) {
            return 1;
         } else {
            return 0;
         }
  }
  
  
	/* Iterative function to reverse digits of num*/
	static int reverseDigits(int num)
	{
		int rev_num = 0;
		while (num > 0) {
			rev_num = rev_num * 10 + num % 10;
			num = num / 10;
		}
		return rev_num;
	}
	
	/* Function to check if n is Palindrome*/
	static int isPalindrome(int n)
	{
	
		// get the reverse of n
		int rev_n = reverseDigits(n);
	
		// Check if rev_n and n are same or not.
		if (rev_n == n)
			return 1;
		else
			return 0;
	}
	
	/*Driver program to test reversDigits*/
	public static void Main()
	{
		int n = 4562;
		Console.WriteLine("Is" + n + "a Palindrome number? -> " +
			(isPalindrome(n) == 1 ? "true" : "false"));
	
		n = 11;
		int n2=22322;
		Console.WriteLine("Is" + n + "a Palindrome number? -> " +
			(isPalindrome(n) == 1 ? "true" : "false"));

    Console.WriteLine("Is" + n + "a Palindrome number? -> " +
			(isPrime(n) == 1 ? "true" : "false"));

    Console.WriteLine("Is" + n + "a Palindrome number? -> " +
			(isPrime(n2) == 1 ? "true" : "false"));

	}

}


https://code.labstack.com/jn1ekBfZ
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4>design a c# program the form has a list of numbers which is stored in a single d array display buttons minimum and sum show appropriate result


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5> write a C# program to display 3 text box and 2 button enter eny string into 1st or 2nd text box if the user concatanate of 2 string in 3rd textbox 



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6> disign a form which accept student profile in which accept the name display 4 radio button for selection of course like mca msc me aceept computer skill in
 chechbox show 2 button submit and exit when the user click submit disply the student name and skill with pop up box


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7>to search for student record using student name and roll no display student record in datagred used database

8>disign a form to display student details in a greed view as well as an textboxes after clicking next and prev button the student data should be stored in database
  roll name age city 

9> to accept emp details such as name desg date gender number show button save cancel exit save record in databse cancel button cancel the opration exit will exit

10>to perform opration on listbox or combobox add item remove item sort item single selection multi selection and clear item

11> write a program to design a form to accept date from the user using calaender control and after clicking a commond botton displayt the date 
in textbox and provide 2 option increment the daet and decrement the date

12> write a program to create emp tablr with emp id name addre number on searching by emp id display the detais of emp in msg box

13> write a web application in asp.net use c# to design webpage use validator and  validator control 

14> write a web application in asp.net use c# to design masterpage with 2 content pages 1 page displya emp personal info 2nd display emp academic info

15> write a asp.net appication use c# to design login screen use view state to restore the value form textbox 1 &2
 
16> write a asp.net appication use c# to design page accept a name of icescreem from the user and add it in listbox on clicking add button user can select multiple name
 from listbox on clicking submit button ahould be display on a lable control
17> to accept stud info when the user click submit the info display on next page

18>write a web application in asp.net use c# to accept details emp id nsame add date type depalrtment and display in table on samere pageuse table server control

19>write a program in c#.net to check stud age if students age is not between 20 and 25 genearte user defined exception invalid age

20> write a program in c#.net to accept 2

21> write a program in c#.net program to checck for array limit/size display appropriate tyupe of exception

22>accept temp from user and create a negative temp exception

23>