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Web
Create a Tabbed MDI using child forms
If you are developing applications for Windows it is almost certain that you have incorporated the Multiple Document Interface (MDI) at some point. This is where you have a parent form that acts as the host for all forms within the application, minus a few exceptions. I know there are debates about whether MDI is an effective approach, but it doesn’t change the fact that MDI is very heavily used. I have found that the Tabbed Document Interface which is essentially an MDI that implements tab navigation between open items is pretty popular. As a matter of fact, this same...October 03, 2008 2 min read -
Web ASP.NET AJAX
RadMenu for ASP.NET Ajax - Working with disabled JavaScript
As you may know accessibility standards require a web page to work when JavaScript is disabled. In this blog post I will show you how to make RadMenu work even without JavaScript. I will also show how to make JAWS reader "see" all items rendered by RadMenu (even the hidden ones). Disabling JavaScript First we need to find a way to disable JavaScript in our browser of choice. For FireFox you need to install the web developer toolbar plugin. Then you can easily use the "Disable JavaScript" option: In Internet Explorer you should first edit the security settings for the zone in which your... -
Web
RadChart – How to customize databound and auto-generated items?
Imagine you have a databound RadChart and you need to customize the item labels, say you need to combine the values of two fields into a single item label. All you need to do is wire the ItemDataBound event, retrieve the ChartSeriesItem and customize it as per your requirements. You may use the actual data for this, here is an example: protected void RadChart1_ItemDataBound(object sender, ChartItemDataBoundEventArgs e) { ChartSeriesItem item = e.SeriesItem; DataRowView dataItem = (DataRowView)e.DataItem; item.Label.TextBlock.Text = dataItem["FirstName"].ToString() + " " + dataItem["LastName"].ToString(); } That was simple, but what about auto-generated axis items? OK, let’s start with some background – RadChart allows you to modify it at any stage of the page lifecycle, including events fired as...October 02, 2008 1 min read -
Web ASP.NET MVC
Telerik RadControls in Microsoft ASP.NET MVC
To continue with my previous blog post about RadGrid for ASP.NET AJAX in Microsoft ASP.NET MVC, I've made another example how to use RadControls for ASP.NET AJAX as pure client-side components in this environment. The biggest challenge here is the ScriptManager and scripts registration in general. By default the creation of client-side components is so tightly coupled with the ajax functionality (PageRequestManager) that the only way to enable this is to inherit from ScriptManager (or RadScriptManager) and build everything manually: protected override void Render(HtmlTextWriter writer) { foreach (RegisteredScript script in GetRegisteredClientScriptBlocks()) { if (Page.Items[script.Key] == null) { Page.Items[script.Key] =... -
Web
Loading Images in Silverlight2 Applications
One question we receive very often from our customers, is how to load an image, from different relative folders in Silverlight. This is a little bit tricky and it is different from the way it is working in HTML. I found this great article, from the Katrien's MSDN blog, about all the possible scenarios that you may have. Here is the reference: http://blogs.msdn.com/katriend/archive/2008/04/27/different-ways-for-loading-images-and-files-in-silverlight-2-applications.aspx Enjoy!... -
People
HDC Follow-Up
I just arrived back home from the Heartland Developer's Conference in Minneapolis, MN. Besides a stomach bug I caught on day two and the near-death experience on the flight home, I had a great time. HDC was packed with 30 sessions over two days and was attended by more than 200 developers, most of whom were locals. There were a lot of great talks and it was fun to rub shoulders with the .NET developers of the Twin Cities. I also really enjoyed meeting some great Telerik customers and hearing all the things you are doing with our controls. All-in-all, I'd...October 02, 2008 1 min read -
Release
RadControls for Silverlight 2 RC0
The latest RadControls for Silverlight 2 have been uploaded to the Telerik site. The files can be downloaded form the Client.Net accounts. This version is entirely compatible against MS Silverlight 2 RC0 that was launched a few days ago. Still to come in the following days: Detailed release notes, all the breaking changes, what's new in the suite.Desktop WinFormsShow Us Your WinForms Skills and Win $500
If you have been developing applications with Telerik RadControls for WinForms and are dying to show them off, now is your chance! What's more, if the Telerik community decides you have the bragging rights, you will win a $500 Amazon Gift Certificate. All you need to do to participate in the new RadControls for WinForms Challenge is to send us at least 3 screenshots and a short (up to two paragraphs) description of your WinForms application. The first 50 contestants who meet the contest requirements and are approved as finalists will receive a complimentary prize of 5,000 Telerik points that can be used towards your next purchase. We're very interested to...Web ASP.NET AJAXRadComboBox + jQuery
Do you think that RadComboBox animations are boring? We can spice them up with a little help from jQuery. Let's make the dropdown fade for example - This can be done very easily using the fadeIn, fadeTo and fadeOut jQuery methods. You can download a sample project for more details. We can also animate the text of the items. All you need to do is to animate the padding-left css attribute of the item's DOM element. The following script shows how the text can be moved when you hover over the item: $('.rcbItem') .mouseover(function(){ $(this).stop().animate({paddingLeft:"54px"}, {duration:500}); }) .mouseout(function(){ $(this).animate({paddingLeft:"4px"}, {duration:500}); })Web ASP.NET AJAXRadTreeView for ASP.NET Ajax - Binding to LinqDataSource
Since the Q2 2008 SP1 release RadTreeView, RadMenu, RadPanelBar and RadTabStrip support hierarchical databinding to the LinqDataSource control. In this blog post I will demonstrate how to do this with RadTreeView (the steps are identical for the aforementioned controls). Create a new Web Site in Visual Studio 2008 and copy the Northwind database in your App_Data folder Add a new "Linq to SQL classes" item named "Northwind.dbml"
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