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Total Hits: 12 | Today: 0
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Author: George Shepherd
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Ever since the PDC in July I've been hearing about Active Server Pages+ (ASP+) server-side controls. What are they, and how are they different from ActiveX® controls? Why would I ever use one?That's a good question. With all the new technology coming from Microsoft, it's sometimes hard to keep everything straight.
Server-side controls are custom controls. You're probably thinking that custom controls have been around forever, right? There were VBXs in the early 90s, OLE Controls in 199...
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Total Hits: 57 | Today: 0
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Author: Mike Pope
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I only recently ran across this, and it surprised me: when you use a grid control (DataGrid, GridView, and now even ListView) that supports both selection and paging, selection is persisted incorrectly as you navigate between grid pages.
Let's say that you select the second row. Use the pager to go to page two. You'll see that the second row on that page is selected, too. Third page, same thing. Turns out that row selection in a grid control is relative to the page - the default selection...
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Total Hits: 38 | Today: 0
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Author: James M. Venglarik, II
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Sometimes the extra controls that come with Visual Studio .NET can be a bit inflexible or they just don't provide enough functionality or flexibility for all situations. The ASP.NET form validation controls, while powerful and easy to use, require that the entire page be valid before it's submitted back to the server. Through the use of the new object-oriented features of Visual Basic .NET, it is possible to extend their functionality to overcome this limitation.
This article tells you how an...
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Total Hits: 27 | Today: 1
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Author: Louwgi
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I search many websites to find an easy website control chess board to use – but could not find any – so I have created a very easy to use chessboard control. Most other source codes is using GDI graphics and windows forms - The logic I've used here is very easy and anybody can use it on a website. You only need .NET installed and you can copy the usercontrol on any page.
Please note I haven't add any logic on the control but this can easy be build in like you want to....
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Total Hits: 32 | Today: 0
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Author: Scott Mitchell
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This article is the fourth piece of a multi-part series on using the DataGrid Web control that will span several weeks. The ASP.NET DataGrid Web control, which displays database information in an HTML table, is highly versatile. The basics of the DataGrid were discussed in Part 1; information on specifying display properties of the DataGrid was discussed in Part 2. In Part 3 we examined how to associate custom events with the DataGrid....
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Total Hits: 41 | Today: 0
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Author: Scott Mitchell
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As discussed in detail in Chapter 9 of ASP.NET Data Web Controls Kick Start, the DataGrid provides the ability to edit the data in its rows one row at a time. This built-in editing support is relatively easy to implement and can greatly enhance the funtionality of a Web page.
Unfortunately, when using the DataGrid's built-in editing features, there is no property that can be set that indicates that a certain row, or set of rows, should not be editable. For example, consider the case where you...
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Total Hits: 188 | Today: 0
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Author: Peter A. Bromberg
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We often get forum posts here asking "How can I tell if a user's Session is timed out, and perform some action in response?" Often this involves the incorrect assumption that the Session_End event can be used for this. ASP.NET implements a rolling timeout mechanism that extinguishes the session information for a user if no request is received within the timeout period. Session_End happens on the server automatically regardless of whether a user has requested a page, so the idea of using it to do...
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Total Hits: 309 | Today: 0
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Author: SimoneB
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BusyBoxDotNet is an ASP.NET web control library. It is built for ASP.NET 1.1 but it is fully compatible with ASP.NET 2.0 and will soon be written especially for it. The main control is the BusyBox control, which can be used to show a customizable box inside web pages during time consuming activities, a very useful behaviour especially during long processing tasks, in order to inform the user that something is actually happening. Typical time consuming tasks are file uploads, complex queries agai...
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Total Hits: 168 | Today: 0
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Author: Teng-Yong
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There are quite a number of AJAX libraries/framework designed to run on .Net framework. The typical example would be Microsoft Atlas. As a beginner of AJAX, I'd like to have an in depth understanding of the technologies. Thus, I spent some time to create first something much more simplified which I can also use it in my web application projects. In many of the web applications, we need to place a lookup textbox or combo box(drop down) to enable user to select one of the records in a master table...
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Total Hits: 205 | Today: 1
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Author: gn_srini
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Very often, it's required to have a radio button column in a DataGrid. A grid listing of user details along with a radio button, would be a typical example. The requirement may be to select a user from the list of users. On changing the user in the grid, the previous selection should be cancelled. Achieving this at the client side will reduce the communication between the server and the client and will thereby reduce the network traffic....
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Total Hits: 203 | Today: 1
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Author: John Kilgo
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Sometime you may need to query a database and produce the results as an XML file. The .Net XML Web Control makes this extremely easy to do. All you have to do is create an instance of the XML control on your .aspx page. A very few lines of code can then be used to display the database query as XML. To show you how easy this is, note the aspx file immediately below - two lines of code, counting the @Page directive! The code-behind file is not a whole lot more complicated. Most of it is the usual ...
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Total Hits: 60 | Today: 0
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Author: Dino Esposito
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Although the context menu is a common element of most desktop applications, it is still fairly uncommon in Web application names because it doesn't map well to a server-based technology like ASP.NET. To get context menu functionality, your browser needs strong DHTML support and a rich eventing model, both of which you get in Microsoft® Internet Explorer 5.0 and newer versions, as well as in Netscape 6.0 and others. However, the various browsers' object models, although nearly identical in functi...
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Total Hits: 131 | Today: 0
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Author: msdn
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This article assumes you are familiar with creating and manipulating projects and class files within Visual Studio. For simplicity, the code in this article uses the ComboBox Items collection for data. With small modifications this code can be altered to provide the same improved functionality for ComboBoxes that use data binding....
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Total Hits: 783 | Today: 0
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This article has two major parts. In the first part we will discuss about 3.Tier Architecture and in the second part we will implement an ASP.NET example to practice the 3.Tier design. You need the Visual Studio.net with c# compiler, IIS and a Microsoft SQL Server to follow this article....
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Total Hits: 60 | Today: 1
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Author: Sandeep Mewara
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It is a control, that provides user to select multiple values through a dropdown. It clubs input element, an image and a checkboxlist to give a feel of multi-selectable dropdown. It has auto-collapse feature apart from explicit close option giving it a total feel of a normal dropdown. The control can be tweaked by developers as per their own needs very easily. Code sample of the same is attached with the article....
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Total Hits: 55 | Today: 1
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Author: AzamSharp
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RSS (Really Simple Syndication) is one of the newest technology to update live data. Almost all of the blogs these days support and publish Rss feeds. Reading Rss feeds is very simple you just need to parse the xml, read few tags and that's it. In this article we will see how we can make our own custom control which reads Rss feeds of different website. This control will also have the design features so when it reads any RSS from the supplied Url you can view it in the design view of the applica...
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Total Hits: 58 | Today: 0
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Author: Pardesi Services LLC
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In classic ASP applications we had the flexibility of having multiple form tags on the same page and each form could have different target URLs and different method types. This has been kind of a limiting factor in ASP.Net applications. But this does not mean that it can not be accomplished. Micorosoft .Net framework has a very rich library and provides answers to most of the questions. It has a very handy HttpWebRequest class that can be used to send HTTP requests to any server....
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Total Hits: 70 | Today: 0
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Author: vaibhav_gawali
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ASP.NET 2.0 provides several Server Controls, but it still lacks Message Box, Confirmation Box, etc. You can get an excellent server control developed by Ning Liao, Liang Yang which you will get on Code Project itself. But I guess it's not sufficient; you need to programatically check everything in this model. So I developed this event driven server control which raises GetMessageBoxRespose event on button click of client side confirmation box. You can capture which button is pressed in this eve...
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Total Hits: 30 | Today: 0
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Author: 15 Seconds Discussion List
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I have heard that Win2000 Certificate Server can create a certificate which can be used in IIS like a Verisign certificate in order to create SSL sessions. I have spent 8 hours reading through the documentation and can't tell if it is true.
Has anyone here done this or know of a resource where I could find out how to do it? Just want to have https availalbe on the Web server and wanted to try the Microsoft solution if it works....
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Total Hits: 22 | Today: 0
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Author: Scott Mitchell
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This article is the sixth piece of a multi-part series on using the DataGrid Web control that will span several months. The ASP.NET DataGrid Web control, which displays database information in an HTML table, is highly versatile. The basics of the DataGrid were discussed in Part 1; information on specifying display properties of the DataGrid was discussed in Part 2. In Part 3 we examined how to associate custom events with the DataGrid. In Part 4 we looked at how to extend Part 3 to provide custo...
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