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ASP.NET Web API Tutorials
These Web API tutorials will help you learn the essentials of ASP.NET Web API starting from the basics to advanced level. The tutorials are broken down into ...

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4 Sep 2017 ... If I want to display a PDF file in the browser instead of downloading a copy, I can tell the browser via an additional Content-Disposition ...

In the example, we pass a class name to get_class_methods() and dump the returned array with the print_r() function. We could alternatively have passed an object to get_class_methods() with the same result. Unless you re running a very early version of PHP only the names of public methods will , be included in the returned list. As you have seen, you can store a method name in a string variable and invoke it dynamically together with an object, like this: $product = getProduct(); // acquire an object $method = "getTitle"; // define a method name print $product->$method(); // invoke the method Of course, this can be dangerous. What happens if the method does not exist As you might expect, your script will fail with an error. We have already encountered one way of testing that a method exists: if ( in_array( $method, get_class_methods( $product ) ) ) { print $product->$method(); // invoke the method } We check that the method name exists in the array returned by get_class_methods() before invoking it. PHP provides us with more specialized tools for this purpose. We can check method names to some extent with the two functions is_callable() and method_exists(). is_callable() is the more sophisticated of the two functions. It accepts a string variable representing a function name as its first argument and returns true if the function exists and can be called. To apply the same test to a method, you should pass it an array in place of the function name. The array must contain an object or class name as its first element and the method name to check as its second element. The function will return true if the method exists in the class. if ( is_callable( array( $product, $method) ) ) { print $product->$method(); // invoke the method }



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Jul 4, 2017 · This tutorial teaches you how to convert a PDF document to a text file in C#. General setup ...Duration: 4:59 Posted: Jul 4, 2017

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Figure 12-9. Setting server-shutdown parameters Here, you need to enter the following information: Number of Minutes: Indicate the number of minutes after which the portal is to be shut down.

Although Django s form system lets you be pretty concise about writing and using this form, you still haven t arrived at an ideal solution. Setting up a form for adding or editing instances of a model is a pretty common thing, and it would be awfully annoying to keep writing these sorts of boilerplate forms over and over (especially when you ve already specified most or all of the relevant information once in the definition of the model class). Fortunately, there s a way to drastically reduce the amount of code you have to write. Provided you don t need too much in the way of custom behavior from your form, Django





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This framework has PDF creation & editing library which allows you to create, read and .... They're fast, easy to use, and the documentation is good and contains ...

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Read or load a PDF file and extract its text content in C# and VB.NET application with GemBox.Document library.

is_callable() optionally accepts a second argument, a Boolean. If you set this to true, the function will only check the syntax of the given method or function name and not its actual existence. The method_exists() function requires an object (or a class name) and a method name, and returns true if the given method exists in the object s class. if ( method_exists( $product, $method ) ) { print $product->$method(); // invoke the method }

Entering the information and clicking the Shutdown button starts the shutdown process. Basically, the system notifies all logged-in users so that they can prepare for the shutdown. A typical shutdown message that appears on the user s terminal is shown in Figure 12-10.

Just as you can query the methods of a class, so can you query its fields. The get_class_vars() function requires a class name and returns an associative array. The returned array contains field names as its keys and field values as its values. Let s apply this test to the CdProduct object. For the purposes of illustration, we add a public property to the class: CdProduct::$coverUrl. print_r( get_class_vars( 'CdProduct' ) ); Only the public property is shown: Array ( [coverUrl] => )

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provides a shortcut class called ModelForm that can automatically generate a moderately customizable form from a model definition, including all the relevant fields and the necessary save() method. At its most basic, here s how it works: from django.forms import ModelForm from cab.models import Snippet

Caution The maintenance-alert message is displayed on the user terminal only when the user performs some activity on the portal.

The class functions also allow us to chart inheritance relationships. We can find the parent of a class, for example, with get_parent_class(). This function requires either an object or a class name, and it returns the name of the superclass, if any. If no such class exists, that is, if the class we are testing does not have a parent, then the function returns false. print get_parent_class( 'CdProduct' ); As you might expect, this yields the parent class: ShopProduct. We can also test whether a class is a descendent of another using the is_subclass_of() function. This requires a child object and the name of the parent class. The function returns true if the second argument is a superclass of the first argument. $product = getProduct(); // acquire an object if ( is_subclass_of( $product, 'ShopProduct' ) ) { print "CdProduct is a subclass of ShopProduct\n"; }

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PDFsharp & MigraDoc - Hello World Sample
This sample shows how to create a PDF document, add a page, draw some text, and save it to disk. // Create a new PDF document PdfDocument document ...

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Extract Tables from PDFs - CodeProject
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