I want to show Components in a tabs , so first of all create few components. In this project we have three components, First View Component public class AllViewComponent : ViewComponent { private readonly UserManager<ApplicationUser> _userManager; public AllViewComponent(UserManager<ApplicationUser> userManager) { _userManager = userManager; } public async Task<IViewComponentResult> InvokeAsync() { List<StudentViewModel> allUsers = new List<StudentViewModel>(); var items = await _userManager.Users.ToListAsync(); foreach (var item in items) { allUsers.Add(new StudentViewModel {Id=item.Id, EnrollmentNo = item.EnrollmentNo, FatherName = item.FatherName, Name = item.Name, Age = item.Age, Birthdate = item.Birthdate, Address = item.Address, Gender = item.Gender, Email = item.Email }); }
Floating point constant
Definition: The numeric values having fractional part are called floating point constants. All negative Numbers should have prefix ‘- ’. A positive number may have a ‘+’ sign that is optional. OtherCharacter are not allowed . The floating point constant can be represented using two forms as:
1. Fractional form
2. Exponent notation(Scientific notation)
Fractional from: Now, let us see ‘‘how to represent floating point numbers using fractional form? Explain giving examples.’’ A floating point number represented using fractional form has an integer part followed by a decimal point and a fractional part. We can omit the digits before the decimal point or after the decimal point. For example, 0.5, -0.99, -6, -9,+.9 etc all are valid floating point numbers.
Exponent notation (Scientific notation): Now , the question is ‘‘How to represent floating point numbers in scientific notation? Give examples.’’ The floating point number represented using Scientific notation (also called exponential notation) has three parts namely:
(part1) (part2) (Part 3)
mantissa e or E exponent
- The mantissa can be an integer or a floating point number represented using fractional Notation.The letter e or should follow mantissa.
- The exponent should follow e or E. The exponent has to be an integer ‘‘with optional ‘+’
- Sign’’ or ‘- ’ sign.
The following table shows invalid floating point numbers. The reasons for invalidity are also shown:
Floating point/ Real Constant
|
Valid / invalid
|
Reasons for invalidity
|
22.0/7
|
Invalid
|
/ is not allowed.
|
120
|
Invalid
|
There is no decimal point.
|
6.5e 8
|
Invalid
|
White space is not allowed between e and 8.
|
1.2.3
|
Invalid
|
More than one decimal point is not allowed.
|
2.123,4
|
Invalid
|
Comma is not allowed
|
10.5e-6.9
|
invalid
|
Fractional part 6.9 is not allowed in exponent part.
|
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