ASP.NET web pages or mobile forms? : The Official Microsoft ASP.NET Forums

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ASP.NET web pages or mobile forms?

Mar 17, 2007 06:30 AM|LINK

just wanted to present sum code that will maby help sum1 understand the differences between wap 1.1(wml) and wap 2.0(XHTML) and normal (HTML)

errr, laymens terms- difference between web applications, and mobile web applications. i did this in Visual Web Dev 2005 Express Edition.

compile the code, copy it to your server, then view it from IE or mobile phone or any wap browser (klondike,m3gate,openwave,etc)

<script class=st runat=">
    

    public void Page_Load(Object sender, EventArgs e)
    {
        Response.CacheControl = "private";
        Response.Charset = "UTF-8";
        Response.Expires = 0;


        MobileCapabilities currentCapabilities
        = (MobileCapabilities)Request.Browser;
        String prefMime = currentCapabilities.PreferredRenderingMime;


        string page_title = "Capabilities";


        string accept = Request.ServerVariables["HTTP_ACCEPT"];
        string mime = "";


        if (prefMime == "text/html")
        {
            mime = "text/html";
        }
        else if (prefMime == "text/vnd.wap.wml")
        {
            mime = "text/vnd.wap.wml";
        }


        if (accept.Contains("application/vnd.wap.xhtml+xml"))
        {
            mime = "text/html";
        }




        if (mime == "text/html")
        {
            Response.ContentType = "text/html";
            Response.Write(HTML_head(page_title));
        }
        else if (mime == "text/vnd.wap.wml")
        {
            Response.ContentType = "text/vnd.wap.wml";
            Response.Write(WML_head(page_title));


        }


    }
    

    

    private string HTML_head(string page_title)
    {
         string page_head = "&lt;?xml version=\"1.0\" encoding=\"UTF-8\"?>" +
         "&lt;!DOCTYPE html PUBLIC \"-//WAPFORUM//DTD XHTML Mobile 1.0//EN\"" +
         "\"http://www.wapforum.org/DTD/xhtml-mobile10.dtd\">" +
         "&lt;html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\">" +
         "&lt;head><title>" + page_title + "&lt;/title>" +
         "&lt;link href=\"style.css\" rel=\"stylesheet\" type=\"text/css\" />" +
         "&lt;/head><body><div>" + HTML_PageContent() + "&lt;/div></body></html>";
         return page_head;
    }


    private string WML_head(string page_title)
    {
        string page_head = "&lt;?xml version='1.0'?>" +
        "&lt;!DOCTYPE wml PUBLIC '-//WAPFORUM//DTD WML 1.1//EN'" +
        "'http://www.wapforum.org/DTD/wml_1.1.xml'><wml><head>" +
        "&lt;meta http-equiv=\"Cache-Control\" content=\"max-age=0\" /></head>" +
        "&lt;card title=\"" + page_title + "\"&gt;<p>" + WML_PageContent() +
        "&lt;/p></card></wml>";
        return page_head;
    }




    private string HTML_PageContent()
    {
        string HTML_content = "&#91;<b>Html supported browser]</b>" +
            Capabilities();
        return HTML_content;
    }
    

    



    private string WML_PageContent()
{
    string WMLcontent = "&#91;<b>WML 1.1 browser]</b>" +
        Capabilities();
    return WMLcontent;
}
    

    

    

            private string Capabilities()
        {
            MobileCapabilities currentCapabilities
            = (MobileCapabilities)Request.Browser;
            String prefMime = currentCapabilities.PreferredRenderingMime;


            string capabil = "&lt;br/>Screen Width (chars): " + currentCapabilities.ScreenCharactersWidth.ToString() +
            "&lt;br/>Screen Height (chars): " + currentCapabilities.ScreenCharactersHeight.ToString() +
            "&lt;br/>Screen Pixels Width (pixels): " + currentCapabilities.ScreenPixelsWidth.ToString() +
            "&lt;br/>Screen Pixels Height (pixels): " + currentCapabilities.ScreenPixelsHeight.ToString() +
            "&lt;br/>Platform: " + currentCapabilities.Platform.ToString() +
            "&lt;br/>Mobile Manufacturer: " + currentCapabilities.MobileDeviceManufacturer +
            "&lt;br/>Supports body color: " + currentCapabilities.SupportsBodyColor +
            "&lt;br/>Supports JavaScript: " + currentCapabilities.JavaScript +
            "&lt;br/>IsMobileDevice: " + currentCapabilities.IsMobileDevice +
            "&lt;br/>Id: " + currentCapabilities.Id +
            "&lt;br/>GateWayVersion: " + currentCapabilities.GatewayVersion +
            "&lt;br/>IsWebCrawler: " + currentCapabilities.Crawler +
            "&lt;br/>Supports Cookies: " + currentCapabilities.Cookies +
            "&lt;br/>Supports BackGroundSounds: " + currentCapabilities.BackgroundSounds +
            "&lt;br/>Supports ActiveXControls: " + currentCapabilities.ActiveXControls +
            "&lt;br/>NumberOf SoftKeys: " + currentCapabilities.NumberOfSoftkeys +
            "&lt;br/>MobileDeviceModel: " + currentCapabilities.MobileDeviceModel +
            "&lt;br/>Page Content-Type: " + Response.ContentType.ToString();
               

                return capabil;
        }


</script>

Moved by SomeNewKid on Mar 17, 2007 08:01 AM

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Re: ASP.NET web pages or mobile forms?

Mar 17, 2007 08:22 AM|LINK

weird, it cut off the top portion of my script, but the top 3 lines should read:

<%@ Page Language="C#" %>

<%@ Import Namespace="System.Web.Mobile" %>

and finally at the bottom should be the ending script tag:

</script>

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Re: ASP.NET web pages or mobile forms?

Mar 18, 2007 09:43 AM|LINK

Hi jamsweb, you helped with an issue re PrefferedRendingMime recently; http://forums.asp.net/thread/1621309.aspx thanks again.

My objective is very simple to serve correct content to moble devices, easier said then done! This script could be what im looking for.

I want to filter all Xhtml browsers web and mobile that receive CSS and those WAP browsers that recieve wml1.1 dtd

I compiled the above code with heading

<%@ Page Language="C#" Inherits="System.Web.UI.MobileControls.MobilePage" %>
<%@ Register TagPrefix="mobile" Namespace="System.Web.UI.MobileControls" Assembly="System.Web.Mobile" %>
<%@ Import Namespace="System.Web.Mobile" %>

and changed; string capabil = (to capabilties) and return capabil also.

There is a compilation error however :( hoping you can help Paul

CS0117: 'string' does not contain a definition for 'Contains'

Line 32: if (accept.Contains("application/vnd.wap.xhtml+xml"))

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jamsweb

Member

226 Points

71 Posts

Re: ASP.NET web pages or mobile forms?

Mar 18, 2007 10:19 PM|LINK

i will try to paste the right code in here from top to bottom:

<%@ Page Language="C#" %>
<%@ Import Namespace="System.Web.Mobile" %>
<script runat="server">


    public void Page_Load(Object sender, EventArgs e)
    {
        Response.CacheControl = "private";
        Response.Charset = "UTF-8";
        Response.Expires = 0;

        MobileCapabilities currentCapabilities
        = (MobileCapabilities)Request.Browser;
        String prefMime = currentCapabilities.PreferredRenderingMime;

        string page_title = "Capabilities";

        string accept = Request.ServerVariables["HTTP_ACCEPT"];
        string mime = "";

        if (prefMime == "text/html")
        {
            mime = "text/html";
        }
        else if (prefMime == "text/vnd.wap.wml")
        {
            mime = "text/vnd.wap.wml";
        }

        if (accept.Contains("application/vnd.wap.xhtml+xml"))
        {
            mime = "text/html";
        }

        if (mime == "text/html")
        {
            Response.ContentType = "text/html";
            Response.Write(HTML_head(page_title));
        }
        else if (mime == "text/vnd.wap.wml")
        {
            Response.ContentType = "text/vnd.wap.wml";
            Response.Write(WML_head(page_title));

}

    }


    private string HTML_head(string page_title)
    {
         string page_head = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" +
         "<!DOCTYPE html PUBLIC \"-//WAPFORUM//DTD XHTML Mobile 1.0//EN\"" +
         "\"http://www.wapforum.org/DTD/xhtml-mobile10.dtd\">" +
         "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\">" +
         "<head><title>" + page_title + "</title>" +
         "<link href=\"style.css\" rel=\"stylesheet\" type=\"text/css\" />" +
         "</head><body><div>" + HTML_PageContent() + "</div></body></html>";
         return page_head;
    }

    private string WML_head(string page_title)
    {
        string page_head = "<?xml version='1.0'?>" +
        "<!DOCTYPE wml PUBLIC '-//WAPFORUM//DTD WML 1.1//EN'" +
        "'http://www.wapforum.org/DTD/wml_1.1.xml'><wml><head>" +
        "<meta http-equiv=\"Cache-Control\" content=\"max-age=0\" /></head>" +
        "<card title=\"" + page_title + "\"><p>" + WML_PageContent() +
        "</p></card></wml>";
        return page_head;
    }

    private string HTML_PageContent()
    {
        string HTML_content = "[<b>Html supported browser]</b>" +
            Capabilities();
        return HTML_content;
    }

    private string WML_PageContent()
{
    string WMLcontent = "[<b>WML 1.1 browser]</b>" +
        Capabilities();
    return WMLcontent;
}



            private string Capabilities()
        {
            MobileCapabilities currentCapabilities
            = (MobileCapabilities)Request.Browser;
            String prefMime = currentCapabilities.PreferredRenderingMime;

            string capabil = "<br/>Screen Width (chars): " + currentCapabilities.ScreenCharactersWidth.ToString() +
            "<br/>Screen Height (chars): " + currentCapabilities.ScreenCharactersHeight.ToString() +
            "<br/>Screen Pixels Width (pixels): " + currentCapabilities.ScreenPixelsWidth.ToString() +
            "<br/>Screen Pixels Height (pixels): " + currentCapabilities.ScreenPixelsHeight.ToString() +
            "<br/>Platform: " + currentCapabilities.Platform.ToString() +
            "<br/>Mobile Manufacturer: " + currentCapabilities.MobileDeviceManufacturer +
            "<br/>Supports body color: " + currentCapabilities.SupportsBodyColor +
            "<br/>Supports JavaScript: " + currentCapabilities.JavaScript +
            "<br/>IsMobileDevice: " + currentCapabilities.IsMobileDevice +
            "<br/>Id: " + currentCapabilities.Id +
            "<br/>GateWayVersion: " + currentCapabilities.GatewayVersion +
            "<br/>IsWebCrawler: " + currentCapabilities.Crawler +
            "<br/>Supports Cookies: " + currentCapabilities.Cookies +
            "<br/>Supports BackGroundSounds: " + currentCapabilities.BackgroundSounds +
            "<br/>Supports ActiveXControls: " + currentCapabilities.ActiveXControls +
            "<br/>NumberOf SoftKeys: " + currentCapabilities.NumberOfSoftkeys +
            "<br/>MobileDeviceModel: " + currentCapabilities.MobileDeviceModel +
            "<br/>Page Content-Type: " + Response.ContentType.ToString();

                return capabil;
        }

</script>

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jamsweb

Member

226 Points

71 Posts

Re: ASP.NET web pages or mobile forms?

Mar 18, 2007 10:29 PM|LINK

ok the copy and paste thing not working out for me lol, the above code is correct except replace < with <

(the left angle bracket)

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jamsweb

Member

226 Points

71 Posts

Re: ASP.NET web pages or mobile forms?

Mar 18, 2007 10:56 PM|LINK

plkilroy, are you using Visual Web Developer 2005 express edition and .net 2.0?

'Contains' lives in class 'String' which is in namespace 'System'

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plkilroy

Participant

810 Points

377 Posts

Re: ASP.NET web pages or mobile forms?

Mar 19, 2007 01:04 AM|LINK

Hi jansweb, yes I use VWD 05 express and .net2.0 for dev. Did your system compile this script, with those changes i still return CS0117: 'string' does not contain a definition for 'Contains'

cheers Paul

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jamsweb

Member

226 Points

71 Posts

Re: ASP.NET web pages or mobile forms?

Mar 19, 2007 02:04 AM|LINK

yes it compiles fine on my system. maby for sum reason on yours, you have to Import Namespace 'System'?

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plkilroy

Participant

810 Points

377 Posts

Re: ASP.NET web pages or mobile forms?

Mar 19, 2007 02:37 AM|LINK

Hi jansweb, i checked my system and see it running

Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573

I had updated system to .net framework 2, this doesnt appear to be running! so I guess I have to sort this out,

However I tested this script remotely, and it is picking up text/html correctly, but using Nokia 7210 sdk for checking WML the dtd wont serve.

private string WML_head(string page_title)
    {
        string page_head = <?xml version='1.0'?>" +
        <!DOCTYPE wml PUBLIC '-//WAPFORUM//DTD WML 1.1//EN'" +
        "'http://www.wapforum.org/DTD/wml_1.1.xml'><wml><head>" +
        <meta http-equiv=\"Cache-Control\" content=\"max-age=0\" /></head>" +
        <card title=\"" + page_title + "\"><p>" + WML_PageContent() +
        </p></card></wml>";
        return page_head;
    }

Much thanks for your time as this is a major concern for anyone rendering content to mobile devices, cheers Paul

Reply

jamsweb

Member

226 Points

71 Posts

Re: ASP.NET web pages or mobile forms?

Mar 19, 2007 07:37 AM|LINK

ok i had to dig out my nokia 7210 to fix this, it was 2 small errors in the WML_head(string page_title)

first there needs to be a space right after EN

"<!DOCTYPE wml PUBLIC '-//WAPFORUM//DTD WML 1.1//EN'" +

and the second problem was when i pasted the code to this forum it changed a angle bracket to: >

<card title=\"" + page_title + "\"><p>" + WML_PageContent() +

and i also chose to use double quotes in the doctype this time around so here is the new method:

private string WML_head(string page_title)

{

string page_head = "<?xml version=\"1.0\"?>" +

"<!DOCTYPE wml PUBLIC \"-//WAPFORUM//DTD WML 1.1//EN\" " +

"\"http://www.wapforum.org/DTD/wml_1.1.xml\"><wml><head>" +

"<meta http-equiv=\"Cache-Control\" content=\"max-age=0\" /></head>" +

"<card title=\"" + page_title + "\"><p>" + WML_PageContent() +

"</p></card></wml>";

return page_head;

}

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jamsweb

ASP.NET web pages or mobile forms?

jamsweb

Re: ASP.NET web pages or mobile forms?

plkilroy

Re: ASP.NET web pages or mobile forms?

jamsweb

Re: ASP.NET web pages or mobile forms?

jamsweb

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jamsweb

Re: ASP.NET web pages or mobile forms?

plkilroy

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jamsweb

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plkilroy

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jamsweb

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