?
Solved

detecting if a visitor is on a mobile device

Posted on 2011-03-23
5
Medium Priority
?
558 Views
Last Modified: 2012-05-11
Hi,

I am struggling to find a definative answer to my question which I know is well used.

Basically I have a flash file on my website.

I want to add some code to my vb.net page that can tell if the user is from a mobile device and if so just make the flash invisible and replace it with an image.

What is the best way to do this so I don't have to worry about specific devices etc like ihpone and so on.....?

Thanks in advance
0
Comment
Question by:scm0sml
  • 3
  • 2
5 Comments
 
LVL 6

Accepted Solution

by:
HyperBPP earned 2000 total points
ID: 35199863
0
 

Author Comment

by:scm0sml
ID: 35199979
ok so if i wanted to do it in code rather than using the webconfig:
context.Request.ServerVariables["HTTP_USER_AGENT"] =

what would i need to check for just to see if it is a mobile device rather than worrying about the manufacturer etc as it is in the code behind that I will need my code to hide the image?
0
 
LVL 6

Expert Comment

by:HyperBPP
ID: 35200362
Surround the Flash content with an "if" statment similar to:

if(isMobileBrowser() = false) then
    <flash stuff here>
end if
0
 

Author Comment

by:scm0sml
ID: 35200509
You're missing my point.

What goes after the = in my previous post?
0
 
LVL 6

Expert Comment

by:HyperBPP
ID: 35200707
You are going to have to loop over several values to find out if the HTTP_USER_AGENT is a mobile device.  I personally would use a HashTable to store the values listed below, and use:

if(hashTableVar.containsKey(context.Request.ServerVariables["HTTP_USER_AGENT"]) = False) then
    ...Flash stuff...
end if


If HTTP_USER_AGENT is equal to any of the following values then it is a mobile device:

“midp”, “j2me”, “avant”, “docomo”,
“novarra”, “palmos”, “palmsource”,
“240×320¿, “opwv”, “chtml”,
“pda”, “windows ce”, “mmp/”,
“blackberry”, “mib/”, “symbian”,
“wireless”, “nokia”, “hand”, “mobi”,
“phone”, “cdm”, “up.b”, “audio”,
“SIE-”, “SEC-”, “samsung”, “HTC”,
“mot-”, “mitsu”, “sagem”, “sony”
, “alcatel”, “lg”, “eric”, “vx”,
“NEC”, “philips”, “mmm”, “xx”,
“panasonic”, “sharp”, “wap”, “sch”,
“rover”, “pocket”, “benq”, “java”,
“pt”, “pg”, “vox”, “amoi”,
“bird”, “compal”, “kg”, “voda”,
“sany”, “kdd”, “dbt”, “sendo”,
“sgh”, “gradi”, “jb”, “dddi”,
“moto”, “iphone”


This site has a listing of mobile browser user_agent strings:  http://www.zytrax.com/tech/web/mobile_ids.html.

0

Featured Post

Never miss a deadline with monday.com

The revolutionary project management tool is here!   Plan visually with a single glance and make sure your projects get done.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

ASP.Net to Oracle Connectivity Recently I had to develop an ASP.NET application connecting to an Oracle database.As I am doing it first time ,I had to solve several problems. This article will help to such developers  to develop an ASP.NET client…
IntroductionWhile developing web applications, a single page might contain many regions and each region might contain many number of controls with the capability to perform  postback. Many times you might need to perform some action on an ASP.NET po…
SQL Database Recovery Software repairs the MDF & NDF Files, corrupted due to hardware related issues or software related errors. Provides preview of recovered database objects and allows saving in either MSSQL, CSV, HTML or XLS format. Ensures recov…
Get the source code for a fully functional Access application shell with several popular security features that Access VBA application developers desire, but find difficult or impossible to figure out how to code. You get the source code for managi…
Suggested Courses

599 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question