Skip to main content

Featured Post

How to use Tabs in ASP.NET CORE

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 });             }            

How to use RequiredFieldValidator Control in ASP.NET

Introduction

The Required FieldValidator control is the simplest control , and is used to ensure that the user has entered the data into the input control, such as TextBox to which it is bound. For example , if you are entering data, for buying a T-shirt , in an input control , it is necessary to enter the size of the T-Shirt that you want to buy. If you do not enter a value , the validation control displays an error message .

Public property of the RequiredFieldValidator Class

initialValue : Handles the initial value of the associated input control.

Example



<%@ Page Language="C#" AutoEventWireup="true" CodeFile="requiredfield.aspx.cs" Inherits="requiredfield" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

</head>

<body>

<form id="form1" runat="server">

<div>






UserName :
 
 
<asp:TextBox ID="usrtxt" runat="server"></asp:TextBox>

<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="usrtxt" ForeColor="Maroon">Field is required</asp:RequiredFieldValidator>

<br />

<asp:Button ID="Button1" runat="server" Text="Submit" />





 
 
</div>

</form>

</body>

</html>

 
Output
validator
 

Comments

Popular Post

How to use Tabs in ASP.NET CORE

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 });             }            

Polynomial representation using Linked List for Data Structure in 'C'

Polynomial representation using Linked List The linked list can be used to represent a polynomial of any degree. Simply the information field is changed according to the number of variables used in the polynomial. If a single variable is used in the polynomial the information field of the node contains two parts: one for coefficient of variable and the other for degree of variable. Let us consider an example to represent a polynomial using linked list as follows: Polynomial:      3x 3 -4x 2 +2x-9 Linked List: In the above linked list, the external pointer ‘ROOT’ point to the first node of the linked list. The first node of the linked list contains the information about the variable with the highest degree. The first node points to the next node with next lowest degree of the variable. Representation of a polynomial using the linked list is beneficial when the operations on the polynomial like addition and subtractions are performed. The resulting polynomial can also

Print the asp.net webpage using button

Introduction Today i am talking about printing, and how to print the content or you can say selected content in asp.net. If you have a webpage and you want to print this then you have to choose command key (ctrl+p) for that. Also you want to print the selected part then you have to select the text first then you have to use command key. But sometimes your selected page could not printed. So many websites provide the printing facilities on the webpage. Today i am talking about the same topics here. Lets take a simple example to demonstrate the topic. Source code: <%@ Page Language="C#" AutoEventWireup="true" CodeFile="printpage.aspx.cs" Inherits="printpage" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head>     <title></title> <script> function printpage() { var getpanel = document.getElementById("<%= Panel1.ClientID%>"); var MainWin