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ADO.NET Data Services : Efficient Error Handling across Application Tiers

While developing an application that spans multiple tiers , it is important that you be able to flow error information through the tiers without losing any context or details in the tiers. With ADO.NET Data Services , we have an error contract which guarantees Read More...
Posted Saturday, November 14, 2009 4:43 AM by PhaniRajuYN | 1 Comments

Using the ADO.NET Data Services Silverlight client library in x-domain and out of browser scenarios – II (Forms Authentication)

Click here to download sample application Using the ADO.NET Data Services Silverlight client library in x-domain and out of browser scenarios – II (Forms Authentication) In this blog post, we will talk about using the Silverlight Client Library against Read More...
Posted Thursday, September 10, 2009 12:20 AM by PhaniRajuYN | 3 Comments
Attachment(s): DataServicesXDomainSLClient.WithAuth.zip

Using the PHP Toolkit with ADO.NET Data Services

Setup PHP on your windows machine Setup the PHP Toolkit Setting up the PHP samples on IIS Running the sample ADO.NET Data Services PHP Sample Applications Walkthrough Setup PHP on your windows machine The following steps show you how to setup your windows Read More...
Posted Tuesday, September 08, 2009 11:17 PM by PhaniRajuYN | 0 Comments
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Batching Queries using the ADO.NET Data Services CLient library

Did you know you could execute batch queries using the Data Services client library ? The API is ExecuteBatch for Synchronous access and Begin/End ExecuteBatch for asynchronous scenarios. 1) Batching a set of URI Queries . The ExecuteBatch API accepts Read More...
Posted Sunday, March 15, 2009 10:50 PM by PhaniRajuYN | 2 Comments

Working with Inheritance in Ado.net Data Services

I’ve seen this question quite often on the Astoria forums and wanted to write something down so that our users can gain from the discussions that go on in our forums. We will discuss how one deals with entities ( tables / records / resources ) that participate Read More...
Posted Tuesday, December 23, 2008 10:05 PM by PhaniRajuYN | 0 Comments

Customizing Serialization of Entities in the ADO.NET Data Services Client Library

This post is inspired by this forum thread : Data services client -- exception on saveChanges Problem Statement I have added some custom proeprties to the Entity Types Generated by DataSvcUtil.exe /Add Service Reference / Hand Coded , these properties Read More...
Posted Thursday, December 11, 2008 11:06 PM by PhaniRajuYN | 7 Comments

Working with associations in ADO.NET Data Services , Part 2

In part 2 ,we will talk about how to use the client library to deal with : 1..N Associations This is the case of entities associated with each other 1..N . An example from Northwind is the relation between Categories and Products Entities. An instance Read More...
Posted Thursday, October 23, 2008 10:01 PM by PhaniRajuYN | 10 Comments

Accessing Cross-Domain ADO.NET Data Services from the Silverlight Client Library

When we built the client library for Silverlight in Silverlight 2.0 , the underlying Network Stack provided by Silverlight core libraries was very limited in terms of the Status Codes and Request Verbs that it supported.Our options were : a) Use the System.Net Read More...
Posted Tuesday, October 21, 2008 3:36 AM by PhaniRajuYN | 3 Comments
Attachment(s): slCrossDomain.zip

DataServiceContext , Detect if there are pending changes

Hi , I ran into this interesting scenario in the forums today . How does one find out if there are any pending changes in the DataServiceContext that you have to submit to the store ?   This is quite simple actually . The DataServiceContext has 2 Read More...
Posted Friday, October 03, 2008 6:20 PM by PhaniRajuYN | 0 Comments

Ajax preview 2 : Declarative Instantiation of AjaxControlToolkit Controls

Today ,we will talk about using the Declarative Syntax to instantiate certain AjaxControlToolkit Behaviors . Step 0: Figure out which are the script files needed for the Behavior to work and include the appropriate Script       Read More...
Posted Friday, September 12, 2008 7:56 AM by PhaniRajuYN | 0 Comments

Documentation for the AjaxControlToolkit

Ready for some documentation for the ATK controls ? To skip my journey to create this , download the Documentation ( in CHM form) here : AjaxControlToolkit Docs Step 1 : Using AjaxDoc to generate the Reflection.org file required by Sandcastle    Read More...
Posted Wednesday, August 27, 2008 5:07 AM by PhaniRajuYN | 1 Comments

Entities , How many ways do I count thee ?

Its a common ask that we introduce aggregating mechanisms in Data services so that one can do a Count of the number of entities present in an EntitySet easily. In this blog post , I will outline one method of implementing a “Count” method that works for Read More...
Posted Monday, August 18, 2008 12:51 AM by PhaniRajuYN | 8 Comments

Working with Associations in ADO.NET Data Services

I’ve seen that users are having some question about how to deal with certain types of relations between entities and how to deal with them in the client library.I will outline the a couple of common scenarios of using the client library among a few relationship Read More...
Posted Wednesday, July 02, 2008 6:58 AM by PhaniRajuYN | 13 Comments
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