Computer Programming

This is very good article for web form users who want to get value on TextChanged Event. I mean to say that   TextChanged Event occurs when we move one textbox to another using "Tab" key. When, Web form users moves to MVC projects. He/ She faces some problems in logics. Because, in MVC, For each request we must to call controller. I have an idea to remove such task. I prefer JQuery. So first to Add a ViewModel Class into your project. You can take this sample. 1. Add a new Folder in your project, name of the folder is "viewModel". Now, add a class, which name as addition like using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace WebApplication27.viewModel {     public class addition     {         public int FirstNumer { get; set; }         public int SecondNumber { get; set; }         public int result { get; set; }     } } In this we have three public property.Now, Add a controller class in Controller

In this article i will show you, How to Bind ComboBox with Enum properties.  Enum is a type, which is used to fix no of values like Sunday, Monday, Tuesday...etc.). By using XAML, you can add static resources for enumeration. In WPF We have a ObjectDataProvider for enumeration. Lets check the code. XAML Code : <Window x:Class="WpfApplication1212.Window2"         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"         xmlns:local1="clr-namespace:WpfApplication1212"         xmlns:codeg="clr-namespace:System;assembly=mscorlib"         Title="Window2" Height="300" Width="300">     <Window.Resources>         <ObjectDataProvider MethodName="GetValues" ObjectType="{x:Type codeg:Enum}" x:Key="myenu">             <ObjectDataProvider.MethodParameters>              

Good Morning: Today i will teach you how to add controls in ListView. In this article i will add button control and image control. According to my previous article image control bind with source, so  it required source for binding, so i have create a ImageSource public property in class. We know that ListView contain only single view i.e GridView. A GridView contain rows and column , also we can say that cell is a combination of rows and column. In this article i have create CellTemplate.  Inside the CellTemplate we have a Data Template. In the Code behind page, we have a class with one property i.e " ImageSource", which is used for Image binding. Add a list control with class type, in it we have two images. Lets check the code and their output XAML Code <Window x:Class="WpfApplication11.ImageinListview"         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml&quo

Welcome, user. Today i would like to share something about Forms and their control like TextBox, Label, DropdownList(SelectListItem), Radio Button etc in ASP.NET MVC. Before going to details, first to share something about ViewModel.  A ViewModel is a temporary class file which is used to store data values in properties.    First to take fields which are used in form like UserName, Password, Email, Gender, religions etc. Because we will need controls for each fields. Lets take an simple example. Create a new MVC project. Right click on your project, Add a new Directory which name should have ViewModel Add this class file inside the ViewModel using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace MvcApplication1.ViewModel {     public class FormVM     {         public int Id { get; set; }         public String UserName { get; set; }         public String Password { get; set; }  

In this article i will show you how to find sum of single column of a html Table. We all know that a table contain table row and table column. Each row and column contains a cell. in this article i will use Id of the cell. We all know that id of the cell is different from other cell so we arrange id with numerical no like first cell id is amtlbl_0 and further is amtlbl_1, amtlbl_2. by using each method we can get the all ids. So the main logic is get the id which contain text like "amtlbl". In Jquery we have some technique to get the approximate id by using  $("[id*=amtlbl]") Check the complete source code:  <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head>     <title></title>     <script src="Scripts/jquery-1.10.2.js"></script>     <script type="text/javascript">         $(function () {             var grandtotal = 0;             $("[id*=amtlbl]&q

Background Worker is used to do processing in background.  I mean to say that if you have two work and you want to do complete both task at same time then must to use BackgroundWorker class. You can do two task at same time , like in gmail, attach a file with writing some text in the Text. Use this example and see more things about BackgroundWorker class. XAML Code:  <Grid>         <Button Content="Run BackGround Work" HorizontalAlignment="Left" Margin="38,32,0,0" VerticalAlignment="Top" Width="209" Click="Button_Click"/>         <Label Content="" HorizontalAlignment="Left" Margin="38,68,0,0" VerticalAlignment="Top" Name="processlbl"/>         <Label Content="" HorizontalAlignment="Left" Margin="217,68,0,0" VerticalAlignment="Top" Name="Completelbl"/>         <Button Content="Other

Windows Forms methods enable you to perform various tasks, such as opening, activating and closing the form. The commonly used methods are explained in the following: 1. Show ( )  Description : Is used to display a form. Example : Form2 frmobj = new Form2(); frmobj.Show(); Explanation : This code creates a new instance of the Form2 form by using the new keyword. The Show() method display the instance of Form2 form. 2. Hide( ) Description : Is used to hide a form. Example : Form1 frmobj = new Form1(); frmobj.Hide(); //you can use this.Hide( ); // for current Form1 Explanation : This code creates a new instance of the Form1 form by using the new keyword. The Hide() method hides the instance of Form1 form. 3. Activate ( ) Description : Is used to activate a form and set the focus on it. When you use this method. It brings the form to the front(if it is the current application) or flashes the form caption(if it is not the current application) on the task bar. Examp

Windows provides the following type of dialog boxes: 1. Modal 2. System Modal 3. Modeless Modal Dialog Box : A modal dialog box does not allow you to switch focus to another area of the application, which has invokes the dialog box. However, you can switch to other windows application while the modal dialog box is being displayed on the screen. For example, the Save as dialog box of Microsoft word is a modal dialog box. If you are trying to save a word file by using the Save As dialog box, you cannot make any changes in the word document until it is saved. The following figure shows the save as dialog box. System Modal Dialog Box The System modal dialog box takes control of the entire Windows environment. For example, the Windows Log On dialog box is a system modal dialog box. The following figure displays the Log On to Windows dialog box. Sometimes, error messages are displayed by using a system modal dialog box. When such messages appear on the scree

In this article i will show you, How to display image from database in ASP.NET MVC. To do this task, we will use <img /> tag in view section. First of all, Create a connection with the database using Entity Data model (Learn How to use ADO.NET Entity Data Model). In the controller action method pass the list of data to the view. Like that:    private DatabaseEntities db = new DatabaseEntities();         // GET: Home         public ActionResult Index()         {             return View(db.Employees.ToList());         } In the View section:  @model IEnumerable<WebApplication23.Employee> @foreach (Employee item in Model) { <img src="@Url.Content(item.Database_Picture_column)" width="100" height="100" /> }

In this article i will show you how to delete selected item from DropdownList/Select List Using JQuery. We all know that select/DropdownList contain option tag for value. So, the main logic behind the question is first to get the select list by using their id property then use option tag with selected attribute after that remove. <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default10.aspx.cs" Inherits="Default10" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server">     <title></title>     <script src="Scripts/jquery-1.10.2.js"></script>     <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>     <script>         $(function () {             $("#btdel").bind("click", function () {                 $

In this video i will explain you how to delete row from GridView as well as Database in ASP.NET C#. The main logic behind the code is CommandName, i.e predefined in asp.net library. If you want to update row then you have a Update command Name similarly if you want to delete row from GridView then you have Delete command Name and their respective event. Keep watching and learn better.