http://www.youcanlearnseries.com/programming%20Tips/csharpmain.aspx Copyright 2004 -- You Can Learn Series mos_rss en-us Sun, 17 July 2006 8:27:02 GMT 24 1 2 3 4 5 6 ken@youcanlearnseries.com ken@youcanlearnseries.com 120 http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx How do you unbox an object? Sun, 17 December 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx Where are value types kept? Sun, 9 July 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx What does making one or more methods of a class abstract force the class to be? Wed, 5 July 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx Show an example of boxing and unboxing. Fri, 30 June 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx Does an abstract method have an implementation? Thu, 29 June 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx Is unboxing an explicit or implicit conversion? Wed, 28 June 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx What is boxing and unboxing in the C# language? Tue, 27 June 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx How is Polymorphism implemented in a method of a base class? Thu, 22 June 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx How can you restrict the visibility of a class and its members? Wed, 21 June 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx When the keyword new appears in code, what should it do? Wed, 14 June 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx What is the root of all classes? Tue, 13 June 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx What keyword can you use to require subclasses to implement a method of their base? Mon, 12 June 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx How does the keyword override help to prevent breaking existing code in derived classes? Fri, 9 June 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx What is a sealed class? Thu, 8 June 2006 8:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx Is it okay to instantiate an object of an abstract class? Tue, 6 June 2006 15:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx If a base class has an accessible default constructor, is the derived constructor required to invoke the base constructor? Sat, 3 June 2006 15:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx What is the visibility of a member declared as internal? Thu, 1 June 2006 15:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx If a base class of a derived class does not have a default constructor; what must the derived constructor do? Wed, 31 May 2006 18:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/QuestionOfTheDay.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/StyleSheetTrick.aspx I learned something new today that I thought I would share with you. It is a very simple thing concerning CSS and ASP.Net in the Visual Studio .Net environment. In the past, I always added the line of code to attach to the stylesheet, but I always had to look it up, because I couldn't remember the exact syntax. It turns out there is an easy way to add the CSS stylesheet to your webform. This article will show you how. Tue, 22 Feb 2005 08:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/StyleSheetTrick.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/ListItemsCollection.aspx This article shows you how to add items to a ListBox control using ListItem. When you drag and drop a ListBox object onto your web form, there are many ways to populate the ListBox. One of the easiest ways is to add items through the items collection property in the properties tab. But what if you want to populate the ListBox with data captured from other places? Sat, 19 Feb 2005 08:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/ListItemsCollection.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/ClientStateMgmnt.aspx This article will discuss the advantages and disadvantages of each method of client side state management. When your user clicks on an URL or button or server side control, how do you remember the information that is currently on the page. These are the techniques to save the information on the client side and not the server side. Sat, 12 Feb 2005 08:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/ClientStateMgmnt.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/SessionState.aspx Session state is a server side tool for managing state. Every time your web app goes to the server to get the next request, the server has to know how much of the last web page needs to be remembered when the new information is sent to the web page. The process of knowing the values of controls and variables is known as state management. Sun, 30 Jan 2005 08:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/SessionState.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/ClientSideCode.aspx The goal of this article is to take an ASP.Net webForm, add a button to the form, do client side onMouseOver events and change background color, button color and fire a Javascript alert message. Most web programmers have used Javascript to do this in old ASP code, this might be a new twist for you and I encourage you to check it out. This uses the control.Attributes command to call the onMouseOver event. Mon, 10 Jan 2005 08:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/ClientSideCode.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/SortedList.aspx In this article we discuss the C# object known as a SortedList. The sortedList object is part of the System.Collections namespace and is inherited from IList. When do you want to use a sorted list? Anytime you have an array of key value pairs that would be beneficial for you to have the keys sorted. Sat, 18 Dec 2004 08:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/SortedList.aspx http://www.youcanlearnseries.com/Programming%20Tips/CSharp/CreateAnRSSFeed.aspx This article describes how any web site can add an RSS feed. It is easy and adds pull technology to your ability to communicate with your clients. What does the XML look like and how do you implement it on the site? Thu, 24 Nov 2004 08:27:02 GMT http://www.youcanlearnseries.com/Programming%20Tips/CSharp/CreateAnRSSFeed.aspx http://www.youcanlearnseries.com/programming%20Tips/CSharp/WhatisLDAP.aspx Teaches you how to build a web service to access your LDAP server. Businesses are reaching the conclusion that they have too many repositories of information and they need to create a single login for all their applications. They are turning to LDAP servers to meet that need. Wed, 27 Oct 2004 08:27:02 GMT http://www.youcanlearnseries.com/programming%20Tips/CSharp/WhatisLDAP.aspx http://www.youcanlearnseries.com/programming%20Tips/CSharp/LDAPReader.aspx How to read information from an LDAP directory server using ASP.Net and C#. Puts it into an XMLDocument and prepares it for becoming a Web Service. Wed, 27 Oct 2004 08:27:02 GMT http://www.youcanlearnseries.com/programming%20Tips/CSharp/LDAPReader.aspx http://www.youcanlearnseries.com/programming%20Tips/CSharp/LDAPToWebService.aspx We are ready to create our web service and web methods that call this class and method. Open the code behind on the LDAPWebServ.asmx file. Create a new WebMethod. Wed, 27 Oct 2004 08:27:02 GMT http://www.youcanlearnseries.com/programming%20Tips/CSharp/LDAPToWebService.aspx http://www.youcanlearnseries.com/programming%20Tips/CSharp/Createaclass.aspx One of the basics to good object oriented programming is the use of classes to control access to objects and provide reusable code, Tue, 19 Oct 2004 08:27:02 GMT http://www.youcanlearnseries.com/programming%20Tips/CSharp/Createaclass.aspx http://www.youcanlearnseries.com/programming%20Tips/CSharp/Createaproject.aspx One of the first important skills you should learn is how to create a project in Visual Studio.Net. Why learn something like this? I have found that someone will give me a task to complete within a project. So maybe you have Tue, 19 Oct 2004 08:27:02 GMT http://www.youcanlearnseries.com/programming%20Tips/CSharp/Createaproject.aspx http://www.youcanlearnseries.com/programming%20Tips/CSharp/UsingMethods.aspx This tutorial walks you through creating a Method and How to Call the Method using C# code behind. Tue, 19 Oct 2004 08:27:02 GMT http://www.youcanlearnseries.com/programming%20Tips/CSharp/UsingMethods.aspx