Meet Johannes Hoppe, Developer Expert
by Jen Looper
May 19, 2017
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How To: Server sorting, filtering, grouping and paging with RadGridView for Silverlight without WCF RIA services
With our upcoming service pack (Q3 SP2) of RadGridView for Silverlight all operation like sorting, grouping and paging on the server can be achieved completely codeless when the grid is bound to DomainDataSource and in my previous post I’ve showed how to do the same for filtering with minimum code. You can even force the grid vertical scrollbar to page on the server instead DataPager. Since WCF RIA services is still in beta I’ve made small example how to achieve sorting, grouping, paging and filtering using custom web service: XAML <UserControl x:Class="SilverlightApplication1.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" d:DesignWidth="640" d:DesignHeight="480" xmlns:data="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data" xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView"> ...January 14, 2010 -
Web
Displaying images stored in MS SQL with RadGridView for Silverlight
There are different ways to store images in a SQL database. In our little demo we have the images placed as binaries in an image type column in a MS SQL table.. As you may know Silverlight works with a limited range of image formats(PNG and JPG). Therefore I have prepared a small sample database with a few jpeg images inside. Silverlight being a client platform does not have direct access to the SQL server. It needs some server-side code to fetch the data. For the purposes of this demo I have used a WCF service and Linq To Sql to connect to the database...January 12, 2010 -
Web
RadGridView for Silverlight and WCF RIA Services Part II: Basic Editing Support
In my previous blog post I have demonstrated how to display master-details data in an asynchronous manner with RadGridView for Silverlight and WCF RIA Services. I have decided to refactor the sample project a little bit and add some very basic editing support. Here is the changes I have made to the sample project: I have recreated the ChinookService to support editing. I have encapsulated the details grid into a new user control called AlbumsControl. I have added a “Submit Changes” button below the details grid. I got rid of the IValueConverter that used to create the albums DomainDataSource and defined everything in...January 08, 2010 -
Web
Asynchronous Master-Details with RadGridView for Silverlight and WCF RIA Services
Inspired by Brad Abrams’ marvelous series of blog posts, I have decided to create a simple project demonstrating how to harness the enormous power of RIA Services with Telerik RadGridView for Silverlight. I have decided to use the new Chinook database after reading this wonderful post by Tim Heuer explaining how to work with relational data in the RIA Services paradigm. Make sure you have this database installed on the default instance of your SQL Server 2008 Express or you will have to modify the connection string as needed. In one of my previous blog posts I have thoroughly explained How To Display Hierarchical Data with...January 07, 2010 -
Web
How To: Populate RadGridView for Silverlight distinct filters asynchronously using WCF RIA Services
With our upcoming service pack (Q3 2009 SP2) you will be able to populate distinct values asynchronously using the DistinctValuesLoading event. To achieve this you can assign any INotifyCollectionChanged collection for distinct values ItemsSource and RadGridView will update the UI immediately on any change. I’ve made small demo on how to achieve this using WCF RIA Services and RadGridView bound to DomainDataSource with DataPager – in this case the grid distinct values are populated from the entire collection server-side not only from the current downloaded page: server-side: public List<DistinctValue> GetDistinctValues(string propertyName) { var list...January 07, 2010
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