I have been able to bind objects implementing ICustomTypeProvider to the XamGrid and columns are auto-generated as expected. However, when binding the XamGrid to a VirtualCollection and then loading the VirtualCollection with these same objects, the columns…
Column Filtering of the grid does not seem to work when using a VirtualCollection as the ItemSource of the grid. When I was using Infragistics 10.1 version, I found that the documentation mentioned that it doesn't work (based on this thread - http…
I am using a VirtualColletion and it is set as the ItemSource on the XamGrid. For one of the fields in edit mode I have a TemplateColumn.EditorTemplate that displays a TextBox and a button.
The buttom calls a ChildWindow which is a lookup window.
The…
Hi,
I'm trying to perform groupby on a xamgrid. I'm using the virtual collection to load the data. I have one million rows on the server side and I'm loading 1000 rows at a time. I'm also making use of deffered scrolling. I have used …
We have a scenario where we will have to execute stored procedures and display the data on xamgrid. Some of the stored procedure return upto 50K records and therefore we would like to display them using virtual collection. However, we also have a scenario…
I am looking for a best practices or sample showing how a user would query for varying collection counts in the ui and adjust the "AnctipatedSize" property of a virtual collection accordingly to reflect proper total pages.
For example, we use…
Hello,
How can I access the cached items of a virtual collection?I want to change a property for all items in the xamWebGrid at once.
I've added a column to the xamWebGrid with a checkbox, and in the columnHeader there is also a checkbox. When the…
Hello, after upgrading to the latest SR i get the following exception on the load data of a virtual collection binded to XamDataTree
at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument) at System.Collections.Generic.Dictionary…
I have a SL project. I am using RIA service as my data layer. I have a service class that makes the RIA service calls. My view model contains the following methods below. The grid loads fine on the initial load. Once I page, my 'LOESummmary_LoadCompleted…
I want to use filtering on virtual collection. I read post http://blogs.infragistics.com/forums/p/43501/240440.aspx#240440.
And have a some questions:
What if we using RIA services and want to do filtering on serverside entities of ObjectC…
I got what you are trying to achieve now. It looks like that this is a bug. FontWeight isn't applied when the ConditionalFormatRule is Row. I have created a support case on your behalf - its id is CAS-64389-R40TGY.
EDIT: The the development…
Hello.
I want to use server-side paging.
I have a XamGrid bounded on VirtualCollection<>.
I used ItemDataRequested event. When it fires, I get data from RIA service async.
As a parameters sent to service i use
(int startIndex, int itemsCount…
I use XamGrid with ItemsSource property bounded on VirtualCollection. ( v11.2 )
VirtualCollection contains EF Enitites.
XamGrid has pager on bottom, grouping bar on top and filtering in first row.
Used ItemDataRequest event calls RIA service…
The use of hierarchical data in applications often requires loading data on demand. This is very typical problem, especially when using WCF services from Silverlight applications.
Infragistics Silverlight controls as XamTree, XamDataTree, XamGrid offer…
Loading data on demand is typical of applications that use hierarchical data. The article “On Demand Data Loading in XamTree” demonstrated an application using Infragistics XamTree. This article shows how they could benefit from hierarchical…
The oMovies Browser is a small project demonstrating how to interface with the Netflix oData catalog using Infragistics Silverlight controls. The oMovies project makes use of the xamGrid, xamSlider and Infragistics Virtual Collection
Quick Summary The VirtualCollection class uses the ItemDataRequested event to fetch data for the collection Using a wrapper class which includes the requested collection along with the next “start index” and the total number of records helps simplify…
Learn to use the Infragistics VirtualCollection class to enable server-side paging for the xamWebGrid. See how to communicate with a WCF service to provide data access on the server and how to return paged sets of data to the client.
Resources
Silverlight applications often work with large sets of data, but only small portions of this data must be served to the client at a time. The VirtualCollection class acts as a collection container that holds partial amounts of data, while representing…