Building a Custom ASP.NET Ajax Enabled Grid Using JavaScript
page 6 of 9
by Mudassar Ahmed Khan
Feedback
Average Rating: 
Views (Total / Last 10 Days): 46251/ 133

Sending the Response

In the page load, the response is sent to the page. When the page is loaded the generated HTML is directly binded to the DIV using the innerHTML property (see the code below).

Listing 13

dvContent.InnerHtml = PopulateGrid(dt.DefaultView, intPage, intRowsPerPage)
dvPager.InnerHtml = Pager(dt.Rows.Count, intPage, intRowsPerPage, intPageSet)

If the Parameters are received through the querystring, that is it is an AJAX call, the Response XML is generated and sent back to the client. Note I have used <![CDATA[ ]]>. Since if you directly embed html within XML tags, the XML structure will be broken meaning if you place it within these tags, the Parser ignores it.

Listing 14

Dim strResults As String = PopulateGrid(dt.DefaultView, intPage, intRowsPerPage)
Dim strPager As String = Pager(dt.Rows.Count, intPage, intRowsPerPage, intPageSet)
Dim strResponse As StringBuilder = New StringBuilder
            strResponse.Append("<RESPONSE><VALUES><ERROR>False</ERROR><PAGER><![CDATA[")
strResponse.Append(strPager)
strResponse.Append("]]></PAGER><GRID><![CDATA[")
strResponse.Append(strResults)
strResponse.Append("]]></GRID></VALUES></RESPONSE>")
Response.Clear()
Response.ContentType = "text/xml"
Response.Write(strResponse.ToString())
Response.End()

View Entire Article

User Comments

Title: wow   
Name: Sue
Date: 2012-10-11 3:05:48 PM
Comment:
what a great code! Thanks
Title: m,n   
Name: mn,mn
Date: 2012-08-31 8:55:59 AM
Comment:
mn,mn
Title: Excellent   
Name: Soons
Date: 2010-02-13 12:45:27 AM
Comment:
The example was very simple and informative..
Thanks for the good work
Title: Small Problem   
Name: IndSoft
Date: 2009-08-30 10:12:21 AM
Comment:
Good work, im also tried this it was work for me, but my problem is i need to edit the record using ajax (Not using UpdatePanel in VS)what is best way to do that.

note-when i click edit link, it should take particular record to separate web control (textboxes).
Title: RE i did upgrade it to 3.5   
Name: Mudassar Khan
Date: 2009-03-15 1:00:13 AM
Comment:
Hi,
You ahould review the code after the upgrade. Since cannot say what has changed in that. You can checkout whether the data is assigned to div or not.
Title: ???   
Name: ericnickus@roadrunner.com
Date: 2009-03-14 7:34:38 PM
Comment:
i did upgrade it to 3.5
Title: ???   
Name: ericnickus@roadrunner.com
Date: 2009-03-14 7:34:04 PM
Comment:
I tried it in Visual Studio 2008 and it did compile, but didn't show any data in the latest version of firefox

??
Title: good work   
Name: ajax helper
Date: 2009-02-06 5:16:16 PM
Comment:
http:// good work
ajaxnetforum.blogspot.com/

ajax forum
Title: Awesome!   
Name: ajax learner
Date: 2009-02-06 5:15:12 PM
Comment:
super work!
Title: Good work   
Name: Muhsin
Date: 2009-02-04 5:09:07 AM
Comment:
Excellent tutorial for people who wants to understand how things work behind the scenes
Title: Excellent Effort   
Name: Raghav Khunger
Date: 2009-01-30 7:59:03 AM
Comment:
This Is A Excellent Control .The Most Beautiful thing i like that everything is without postback.
The Sorting Criteria as well as Paging is without postback.
U have Given windows programming like feeling.Wow!
Excellent.....
Title: RE: Why Should I use this way ?!!   
Name: Mudassar Khan
Date: 2009-01-30 3:54:35 AM
Comment:
Reasons
1. Learn what goes behind the scenes in these controls
2. Customization - I can customize the grid as I want.
3. Also a brief idea on how to do the same using Javascript.
Title: Why Should I use this way ?!!   
Name: .NET Developer
Date: 2009-01-30 3:23:42 AM
Comment:
really nice code, but why should we use that? we already have a gridview and ajax extensions!
In visual studio 2008, we have a new DataBound control called "ListView" and "DataPager" will do the work of this articel without the need to write any bit of code!






Community Advice: ASP | SQL | XML | Regular Expressions | Windows


©Copyright 1998-2021 ASPAlliance.com  |  Page Processed at 2021-03-05 9:38:48 PM  AspAlliance Recent Articles RSS Feed
About ASPAlliance | Newsgroups | Advertise | Authors | Email Lists | Feedback | Link To Us | Privacy | Search