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XHTML is probably the most widespread web vocabulary of all; web developers have been using it for several years. XHTML enjoys support in modern web browsers such as Internet Explorer 6 for Windows, Mozilla Firefox 1.x for Windows, and Safari 1.x for Macintosh. The W3C states that XHTML is HTML reformulated in XML. XHTML 1.0 is nothing other than HTML 4.01 in XML syntax. It s an XML-compliant version of HTML. XHTML is a great starting point for a discussion of XML vocabularies. XHTML provides a number of benefits compared with HTML. First, XHTML separates presentation from content. In XHTML, content is made up of data as well as the structural elements that organize that data. HTML was concerned with both information and its display, whereas its replacement, XHTML, is concerned with both information and the way it s structured. XHTML also uses much stricter construction rules compared with HTML, as XHTML web pages must be well formed. You learned about well-formed documents in 1. vb.net code 39 reader VB . NET Image: Example to Read Code 39 Barcode with VB . NET Codes in ...
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Free to download .NET, C#, VB . NET barcode reader app for Code 39 ; C# Code 39 recognition SDK; VB . NET Code 39 recognition SDK. Listing 14-6. Django Authentication Data Creating Creating Creating Creating Creating Creating Creating Creating Creating table table table table table table table table table auth_permission auth_group auth_user auth_message django_content_type django_session django_site polls_poll polls_choice word ean 128, birt report qr code, word ean 13 font, word pdf 417, birt code 128, word 2010 code 39 font vb.net code 39 reader read code 39 barcode with vb . net - Stack Overflow
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NET Code 39 barcode Reader Control is an advanced developer-library for . NET class ... NET Code 39 barcode scanner can read barcode images using VB . You just installed Django's auth system, which means you don't have any superusers defined. Would you like to create one now (yes/no): Answer yes to that question, and provide the requested information, as in Listing 14-7. Listing 14-7. Replying to Authentication Questions Username (Leave blank to use u'lsoto'): admin E-mail address: admin@mailinator.com Warning: Problem with getpass. Passwords may be echoed. Password: admin Warning: Problem with getpass. Passwords may be echoed. Password (again): admin Superuser created successfully. After this, Django will continue mapping your models to RDBMS artifacts, creating some indexes for your tables. See Listing 14-8. Listing 14-8. Automatic Index Creation from Django Installing index for auth.Permission model Installing index for auth.Message model Installing index for polls.Choice model If we want to know what Django is doing behind the scenes, we can ask using the sqlall management command (which is how the commands recognized by manage.py are called, like the recently used syncdb). This command requires an app label as argument, and prints the SQL statements corresponding to the models contained in the app. By the way, the emphasis on label was intentional, as it corresponds to the last part of the full name of an app and not to the full name itself. In our case, the label of pollsite.polls is simply polls. So, we can run: $ jython manage.py sqlall polls And we get the output shown in Listing 14-9. vb.net code 39 reader C# . NET Code 39 Barcode Reader Control | Free C# Code to Scan ...
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NET Code 39 Barcode Reader , Reading Code - 39 barcode images in .NET, C#, VB . NET , ASP.NET applications. Because XHTML is based on XML, you can use XML-specific tools and technologies to create modular documents. Throughout the chapter, I ll show you how to merge other vocabularies into XHTML. Let s begin by looking more closely at the benefits of XHTML. If we wanted to get member information in alphabetical order by name, we would use a query with the ORDER BY clause, as in Listing 9-3. Listing 14-9. Manage.py Output BEGIN; CREATE TABLE "polls_poll" ( "id" serial NOT NULL PRIMARY KEY, "question" varchar(200) NOT NULL, "pub_date" timestamp with time zone NOT NULL ) ; CREATE TABLE "polls_choice" ( "id" serial NOT NULL PRIMARY KEY, "poll_id" integer NOT NULL REFERENCES "polls_poll" ("id") DEFERRABLE INITIALLY DEFERRED, "choice" varchar(200) NOT NULL, "votes" integer NOT NULL ) ; CREATE INDEX "polls_choice_poll_id" ON "polls_choice" ("poll_id"); COMMIT; Two things to note here: first, each table contains an id field that wasn t explicitly specified in our model definition. That s automatic, and is a sensible default (which can be overridden if you really need a different type of primary key, but that s outside the scope of this quick tour). Second, you can see how the SQL commands are tailored to the particular RDBMS we are using (PostgreSQL in this case); naturally, it may change if you use a different database backend. Let s move on. We have our model defined, and we are ready to store polls. The typical next step here would be to make a CRUD administrative interface so polls can be created, edited, removed, and so on. Oh, and of course we may envision some searching and filtering capabilities for this administrator, knowing in advance that once the number of polls grows too much, the polls will become really hard to manage. Well, no. We won t write the administrative interface from scratch. We will use one of the most useful features of Django: the admin app. vb.net code 39 reader Visual Studio . NET Barcode Scanner Library API for . NET Barcode ...
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