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Populating a ModalPopupExtender Dynamically In the following week I was asked to dynamically populate a popup that is created by a ModalPopupExtender . The answer is simple. There are two ways to that and in this post I’ll show them both. Building the Script Service The first thing I did was to create a ScriptService . The service will create dynamically the controls I want to populate the popup of the ModalPopupExtender with. The following ScriptService will write a div and a bold text to its GetData...
Creating AutoCompleteExtender Trigger Button Yesterday I’ve been consulting at a client. During the day, I got a question regarding ASP.NET AJAX Control Toolkit ’s AutoCompleteExtender . The question was how to create a trigger button to the AutoCompleteExtender in order to go to the server and fetch the results. This post will describe how to do that. Creating an Autocomplete Web Service The first thing to do when you want to use the AutoCompleteExtender is to create the web service that you’ll...
Making Cross-Domain Ajax Requests for a Data Service Revisited A month ago I released the post Making Cross-Domain Ajax Requests for a Data Service . The post is about a better solution to the problem. Problem Revisited In my previous post , I mentioned the problem of making a cross-domain Ajax requests to a service that isn’t located in the application domain. I also offered a solution of creating a cross-domain proxy service that will act as an intermediary between your application and the data...
Making Cross-Domain Ajax Requests for a Data Service One problem that exists when using ADO.NET data services is cross-domain requests. For security reasons, XMLHTTP requests don’t allow cross-domain HTTP requests. So what can we do if we want to make an Ajax call for a data service that isn’t located in our domain? this post will try to give a solution to this problem. Making a Cross-Domain Ajax Request for a Data Service As stated early in the post’s start, for security reasons, XMLHTTP requests...
Building ADO.NET Data Services Ajax Queries Using a QueryBuilder In today’s post I’m going to explain how to use the QueryBuilder object of the ASP.NET Ajax client library for building queries to an ADO.NET data service . The QueryBuilder Object In the ASP.NET Ajax client library there is a new namespace – Sys.Data . This namespace hosts the main client side objects to interact with data services. You can recall that I wrote about the ASP.NET Ajax client library in a previous post . The QueryBuilder...
Action Sequences in ADO.NET Data Services In this post I’m going to demonstrate how you can use the action sequence feature of the ADO.NET Data Services AJAX Client Library . What is Action Sequence? As written in my previous post , when we perform a CRUD operation using the AJAX Client Library it is immediately transmitted and performed. In the server side when using the DataServiceContext the operations are cached and only transmitted when we use the SaveChanges method. Action sequence enable us...
ADO.NET Data Services AJAX Client Library in VS2008 SP1 Release In a previous post I showed how to build an Ajax client for a data service . In that post I added to the solution a new ASP.NET 3.5 Extensions Web Application project which came with the the ASP.NET 3.5 Extensions preview. In that preview the ADO.NET data services Ajax client library was embedded in the System.Web.Extensions assembly. In the release of VS2008 SP1 the ADO.NET data services Ajax client library is no longer a part of the...
How to Perform CRUD Operations in ADO.NET Data Services Using Ajax Client In the last post in the ADO.NET data services series I wrote about how you can consume data services using Ajax client . In this post I’m going to explain how to perform CRUD operations on a data service using an Ajax client . DataServiceContext and Sys.Data.DataService Before starting to understand how to perform CRUD operations with Ajax client first I want to discuss the main difference between using DataServiceContext ...
Building an Ajax Client for ADO.NET Data Service The post is another post in the series of posts that I write in the ADO.NET data services subject. You can read the previous posts here . In the post I’m going to explain how to build an Ajax client for a data service . Revisiting Previous Posts Example In the example I’m going to use the same course data context that I used in my previous posts. If you are not familiar with the example, you can go to the following links to update: ADO.NET Data Services...
ASP.NET Ajax Basics Session Yesterday’s evening I delivered a one hour session about ASP.NET Ajax basics in SRL office. The session included the following topics: Old fashion Ajax Introduction to ASP.NET Ajax Introduction to ASP.NET Ajax server controls Partial page rendering without UpdatePanel You can download the slide decks here .
ASP.NET Ajax PageMethods Introduction During the making of a ASP.NET Ajax lecture which I’m scheduled to do on this Monday, I made some code examples that include a PageMethods example. In this post I’ll explain what are PageMethods and how to use them in your ASP.NET application. What are PageMethods? ASP.NET Ajax extensions came with full support for script services. But sometimes you don’t want to build a web service for a small piece of code or for basic functionality. This is why the PageMethods...