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Showing posts from December, 2011

Page methods in asp.net

Now days people are looking for richer and fluid user experience and to create that kind of application Ajax is required. There are several options available to call server-side function from JavaScript with ASP.NET Ajax and if you are using asp.net 2.0 or higher version of Microsoft.NET Framework then page methods are one of best options available to you.

Page methods are available there from asp.net 2.0. If works just like a normal web service. You can direct call that page methods directly from the JavaScript.

Let’s take a real world example. I will call java script on button client click event and then from that we call server-side function from the page methods. So let’s create a project called Pagemethods via File->New Project like following



After that I have created a page called test.aspx and now I am creating page method called GetCurrentDate like following.

using System; using System.Web.Services; namespace PageMethods { public partial class Test : System.Web.UI.Page…

Async file upload with jquery and ASP.NET

Recently before some I was in search of good asynchronous file upload control which can upload file without post back and I have don’t have to write much custom logic about this. So after searching it on internet I have found lots of options but some of the options were not working with ASP.NET and some of work options are not possible regarding context to my application just like AsyncFileUpload from Ajax toolkit.As in my application we were having old version of Ajax toolkit and if we change it than other controls stopped working. So after doing further search on internet I have found a great Juqery plugin which can easily be integrated with my application and I don’t have to write much coding to do same.
So I have download that plug from the following link. This plug in created by yvind Saltvik
http://www.phpletter.com/Our-Projects/AjaxFileUpload/
After downloading the plugin and going through it documentation I have found that I need to write a page or generic handler which can d…

Redirection in URL Routing

In one of the my earlier post I have written How easily we do URL rewriting in ASP.NET Web forms. In this post I am going to explain redirection in URL Routing.

In web application it’s a common scenario that we are redirecting our page to the one from the another and those who are familiar with the ASP.NET Web Forms will also know how we can use  Response.Redirect() to redirect from one page to another page.  In ASP.NET 4.0 Web Forms they have given same kind of Method to redirect to a particular route. The method is Response.RedirectToRoute(). With the help of this method you can redirect to any particular route. Response.RedirectToRoute() has different overload method you can find more information about it from following link.

http://msdn.microsoft.com/en-us/library/dd992853.aspx

Real Example of Response.RedirectToRoute
Iam going to use same example which I have used in my earlier post. We are going to add a new page called Index.aspx. After adding the page. I am going to add fol…

My blog post are appearing on MSDN ASP.NET MVC Content Map

Yesterday I was searching something and I got a nice surprise. I have seen my blog post for RSS reader is appearing on MSDN ASP.NET MVC content map. It is really proud movement for me. Following is the link from where you will get this.

http://msdn.microsoft.com/en-us/library/gg416514%28v=VS.98%29.aspx

On this page Microsoft has created a list of best resources for ASP.NET MVC and one of my post are selected for this. Go to additional resources and there you can see my blog post about RSS reader.



I would like to take this opportunity to thank my readers. It’s all because of them. I promise that I will keep same kind of work again. I would also like to thank MSDN people for adding my blog post to their list. Thank you very very much MSDN Content creators.

Hope you like it. Stay tuned for more…Till then Happy programing…

Easy URL routing in ASP.NET 4.0 web forms

In this post I am going to explain URL routing in greater details. This post will contain basic of URL routing and will explain how we can do URL routing in fewer lines of code.

Why we need URL routing ? Let’s consider a simpler scenario we want to display a customer details on a ASP.NET Page so how our page will know that for which customer we need to display details? The simplest way of doing is to use query string we will pass a customer id which uniquely identifies customer in  query string. So our url will look like this. Customer.aspx?Id=1 This will work but the problem with above URL is that its not user friendly and search engine friendly. who is going to remember that what query string parameter I am going to pass and why we need that parameter. Also when search engine will crawl this site it will going to read this URL blindly as this url is not informative because it query string is not readable for search engine crawlers. So your search engine will be ranked lower as th…