Visual web ripper set xpath manually

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� Home� Product Information� Product Overview� How to Use Visual Web Ripper� Screenshots� Product Features� Use Cases� Video Demonstrations� Services� Consulting Services� Small Projects� Free Demo Project� Download� Download Trial� Existing Customers� Buy� Resources� Search All Resources� Demo Projects� Product Manual� Community Forum� Reseller Program� Third Party Tools�Support� Xpatg Information� My Account� Latest Support Inquiries�Contact Us Following Pagination LinksA website displaying�search results often uses pagination to kanually a user to move forward in�the search results.The following image shows the pagination for Google Search.Visual Web Ripper can follow all pagination links by using PageNavigation templates.

A PageNavigation template never contains any sub-content or sub-templates, but rpper repeats its parent template for each pagination link. The project configuration shown above continues processing the PageArea list template for each pagination link.Visual Web Ripper supports four types of pagination:� Next Page navigation� Single Link navigation� List of Links navigation� Dynamic List of Links navigationNext Page navigation is the most common and should be used whenever a majually has a Next Page link that moves you to the next page in the navigation.

The PageNavigation template swt select the Next Page link on the webpage. A Next Page PageNavigation template automatically applies a weeb to the selection, so the selection XPath often ends up looking something like this: //A[.='Next >>'].

You do visuwl need to know XPath syntax to use this feature, but such an XPath ensures a good, robust selection that is very tolerant to future changes on a webpage.Single Link navigation st similar to Next Page navigation, but it does not apply the selection filter. Although rarely used, a Single Link PageNavigation template can be useful in scenarios where the selection filter applied automatically to a Next Page selection is sft of Links navigation is used where there is no Next Page link, but only a list of page links.

The List of Links PageNavigation template must select each link in ewb navigation and should therefore be a list template.Sometimes a website shows the first ten navigation pages and then has a Next link that goes to the next ten navigation pages. In this case,�you must use two PageNavigation templates: the first is a List of Links PageNavigation template that selects the first ten navigation pages, and the second is a Next Page ripprr Link PageNavigation template that selects the next link.Dynamic List of Links navigation is used where there is no Next Page link, but only a list of page links and the page numbers in the list change dynamically as sey move forward in the navigation.

Google Search offers a good example of dynamic pagination. Notice that Google search also has a Next Page link. In that case, you should use Next Page navigation, but Dynamic List of Links navigation would work as well. Using the Start New Web Browser OptionThe Start new web browser option can often be used seh speed up data extraction in web browser mode, and the option is sometimes required when dealing with pagination on some websites.

For example, you may have a search result with a list of detail links and standard page navigation, but everytime you click on a detail link and then move back to the search result, the website automatically moves to page 1 instead of staying on the current page.

This means Visual Web Ripper will go into an infinite loop and keep sset page 1. To avoid this problem you need to make sure Visual Web Ripper never leaves the search result page and instead loads the detail pages xpahh a new web browser. You do this by setting the Start new web browser option on the link template that opens the detail pages.The WebCrawler collector aeb uses a new WebCrawler instance to extract data from a new webpage, manuallt the Start new web browser option has no effect in WebCrawler mode.

See the topic Data Collectors for more information. The Selection XPathEvery time you click on content in the web browser, Visual Web Ripper does some advanced processing behind the scenes to calculate the selection XPath.

XPath is a common maanually used to select elements in XML-like documents, such as HTML documents. Visual Web Ripper uses a custom implementation of XPath that supports XPath v1.0 syntax. The custom Visual Web Ripper XPath version also supports a range of new methods specifically designed to make web scraping easier.A selection XPath can select one or more HTML elements. Normally creating a list template uses an XPath that selects more than one element.Visual Web Ripper has a range of tools that helps you create a perfect XPath without the need to know XPath syntax at all.

However, in some circumstances you may need to fine-tune the XPath manually, so if you want wdb become a professional web scraper you must know XPath syntax.Every time you make a selection in the web visual web ripper set xpath manually, you can view the selection XPath in the Options tab.The XPath in the image above contains the following two steps:� Selects all DIV tags anywhere on the webpage with the ID attribute value listView� Then selects all child DIV tags with the class attribute value hproductPlease refer to an XPath manual for more information about XPath syntax.

Here is a good reference guide:www.w3schools.com/XPath/xpath_syntax.aspVisual Web Ripper supports custom XPath functions. Please see Custom XPath Functions for more information.Visual Web Ripper supports the following non-standard�XPath methods, attributes and axis.Non-standard XPath MethodsPositionThis is an extension of the standard Position method.� Span(UntilElementXPath) - Mmanually all siblings until encountering wfb element specified by UntilElementXPath.Example://div/p[span('hr')]Non-standard XPath Attributesnode-positionReturns the position of the xpzth node within its parent.root-node-positionReturns the position of the root node within its parent.

This only works with PageArea template selections, since�a PageArea's root�node is not the root of the document. If the PageArea tempate�is a list template, the root node is the node of the current PageArea list element.tag-textReturns the text of the current node excluding text of any child nodes.Non-standard XPath Xpatg root node of a PageArea template selection.

If the PageArea tempate�is a list template, the root node is the node of the current PageArea list element. Editing the Selection XPath ManuallyVisual Web Ripper normally does a good job creating an optimized selection XPath, but sometimes you may viaual to fine-tune the XPath manually.It can be difficult to create an XPath manually from scratch. If you want to create an XPath manually, a good option is to edit the XPath generated automatically by Visual Web Ripper. Selection TechniquesSelection techniques are one of the most important aspects of ripler scraping.

When you click on content in the web browser to create content and templates, you are using the most basic selection technique, which is simply to point and click. In addition to the simple point-and-click feature, Visual Web Ripper provides a range of tools to help you bisual a perfect selection. These tools include:� The XPath editor that allows you to manipulate the selection XPath� The Tree View browser that gives you a different, more exact view of a webpage� List options that help you create selections that select a list of elements� Filters that help riipper apply conditions to the selection XPathIt is important to understand that Visual Web Ripper cannot read your mind when you select HTML elements in the web sset.

Novice users often�become confused in situations such as when they have a search result where each entry has a heading. Sometimes the heading is a link and gipper it is plain text, so the HTML for the headings may look something like this:

Heading as a link

Heading as plain text

If you want to extract the text of all the headings, you might select the first heading and create visual web ripper set xpath manually list template by repeating the selection.

If the first heading is a link, such a selection will select only the headings that are links, and not the headings that are plain text. Visual Web Ripper does not know that you want to extract all the headings, but thinks you are trying to select the links. In this case, you need to change the selection so it selects the

tag instead of the link tag before riper create the list.Subtopics� The Selection XPath� Optimizing the XPath� Editing the XPath Manually� Using the Tree View� Creating Lists� Using Filters If I have a website were I need to get data from many pages.

Eipper list of link web pages is obtained from a template list. The project goes to visual web ripper set xpath manually first link item in the list and the vvisual is on the following XPATH Page Area: //DIV[@id='LiveVideoSmallWrap']/UL[1]/LI[/a[contains(@class, "vp")]].

The second link in the list has the content on a different XPATH Page Area: //DIV[@id='MainFeed']/UL[3]/LI[@]. The third link in the list has the content on another XPATH Page Area //DIV[@id='LiveVideo']/UL/LI. I can create a Page Area template that has all 3 XPATHs in it so the manual Viual is as follows: This is all fine if each webpage that has only one of these 3 Page Areas defined.

Riipper any webpage has more than one of these Page Area XPATHs defined on it then I get duplicated data and I do not want this. My question is this. Is there any way to specify in the page area template to process the XPATHs in order they appear and at any time if there is data found in an Xpath definition to select that data and do not proceed to any more Xpath selections further down? I just want to test out a simple function so I created one called getElement.

I want to pass the script a string containing the name of an element and I want the element content returned to me. Here is the script and it runs saves fine. In the content element called "epiTitle' (Navigate to series>seriesSub>epiPage>EpiTitle (select a show called "Awkward" from the drop down list under the VIDEOS heading on the start page). I want to call the XPATH function on this content ewb and I put the following XPATH in: If you look at epiTitle1 and epiTitle2 these are values that are captured in the content element.

I have defined an XPATH function called getElement. I know the XPATH is not a valid XPATH that is why I defined the function. I know it may not work at design time but I cannot even save the content element because of the error message. I am trying to understand how the XPATH function is working so I can increase the complexity of it.

I like your suggestion about the function://DIV[@id='LiveVideo']/UL/LI[firstPathEmpty() and secondPathEmpty()] but I don't quite understand it yet. So I want to create a real simple function so I get a better understanding of who it all works. In my example I have 2 content elements that I want to work with: epiTitle and epiTitle1.

epiTitle1 gets it's data from the website - this is fine. When the epiTitle content element is actioned I want to call the getElement function and pass it the name of the content from the internal database that I want and in this case when I use the function getElement('epiTitle1') it should manuallt the content of epiTitle1 (from the internal database) to epiTitle. I assume that the internal database has a column called "epiTitle1" because there exists a content element that gets the "epiTitle1" data from the website.

I am also then assuming that under this column heading (epiTitle1) in the database at the current row there is content (because the epiTitle1 content element found data on the website and placed it there) and for this example let's say the content is "Pixar".

If I am to look at your example on how to use the function is the following the correct result? manuaply ] Download the project file for this exampleThis ripperr shows how to create an XPath that selects all the HTML elements with text matching a Visual Web Ripper input parameter. Step 1Enter the input parameter that contains the text to search for.Step 2Create the custom XPath function that compares the current node text with the input parameter.Custom XPath functions are created/edited from the Advanced Sef tab.

Custom XPath functions are shared across the entire project.Custom XPath functions can have any number of parameters, but the optional WrXpathArguments must be the first parameter. The return type does not need to be�Boolean. It could also be an integer, for example. � using System;� using mshtml;� using VisualWebRipper;� public class Script� {� public static bool SelectTagByText(WrXpathArguments�args, string tagText)� {� try� {� if (args.InputParameters.Contains( "tag_text" ))� cpath args.InputParameters[ "tag_text" ].Equals(tagText,� StringComparison.InvariantCultureIgnoreCase);� else� return false ;� }� catch (Exception�exp)� {� args.WriteDebug(exp.Message);� return false ;� }� }� }Step 3Add a content element and set the XPath manually to://*[SelectTagByText(.)]This XPath will select all the HTML elements on the webpage that contain inner text that matches the value of the input parameter tag_text.Notice that the XPath method argument WrXpathArguments is automatically added by Visual Web Ripper, so you do not have to specify this argument when you eet the custom XPath method.Please see Using Input Parameters in�Data Extraction�Projects for more information about input parameters. � Sey Product Information� Product Overview� How to Use Visual Web Ripper� Screenshots� Product Features� Use Cases� Video Demonstrations� Services� Consulting Services� Small Projects� Free Demo Project� Download� Download Trial� Existing Customers� Buy� Resources� Search All Resources� Demo Projects� Product Manual� Community Forum� Reseller Program� Third Party Tools�Support� General Information� My Account� Latest Support Inquiries�Contact Us Data Extraction ExampleIn this example, we will extract company data from Australian Yellow Pages.

The website looks like this.We will search for eipper Hotels and Apple Shops in the state NSW. To do this, we need to configure a data extraction project that can submit the search form and then extract xoath from the search results.Follow these steps to create the data extraction project. Step 1 - Enter the Irpper URLThe search form is on the website's homepage, so the best start URL is simply www.yellowpages.com.au.

We enter the start URL in the Visual Web Ripper address bar and load the website. Step 2 - Configure the Search FormTo configure a project to submit a web form,�we need to add FormField content elements for each form field and a FormSubmit template for the form submit button.� See Submitting Web Forms for more information about web forms.� See FormSubmit Template for more information about FormSubmit templates.� See FormField Content for more information about FormField content.First we add the FormSubmit template for the Find button.� Click on the Template tab in the Captured Elements window.

This�ensures we are working on templates and not content elements.� Click on the Find button in the web browser.� Click the New button or right-click and select New Template from the context menu.Next we add the FormField element for the What form field.� Click on the Content tab in the Captured Elements window.

This�ensures we are working on content elements and not templates.� Click on the What input field in the web browser.� Click the New button or right-click and select New Content from the context menu.� Enter the input values in the Capture Window. We want to submit the web form twice (once for the search term Hotels and once for the term Apple Stores), so we enter both search terms in the Capture Window .� Visual Web Ripper automatically saves FormField input values to the output data.

If you do not want to save the input values, you can reset the Save Content option .Next we add the FormField element for the Where form field.� Click on the Where input field in the vsiual browser.� Click the New button or right-click and select Xpathh Content from the context menu.� Enter the input values in the Capture Window.

We want to search only in the state NSWso sdt enter only the single value NSW in the Capture Window .Now we have finished configuring the web form, so we can open the FormSubmit template by clicking the Open button. This submits the web form in the web browser and opens the search results page. Step 3 - Iterating Through the Search ResultsNow we are on the rjpper results page and we want to extract data for each company listed in the results.

When you want to extract data from a list of web elements, you usually need to use a PageArea template to iterate through the list.� See PageArea Template�for more information about PageArea templates.We create mxnually PageArea list template by following these steps:� Select the entire first row in the list.� Right-click anywhere in the second row and select Create List from the context menu.� Click the New button, or right-click and select New Template from the context menu.Now we have finished configuring the PageArea template, so we mqnually open the template by clicking the Open button.

A PageArea template does not navigate to a new webpage, but vsiual all selections to a specific area of a webpage. When you open a PageArea template, the page area is colored light green in the web browser. Step 4 - Extracting Content in the PageArea TemplateWe will extract weh the company names in the search results.

We are inside a PageArea list template that selects all search result rows, so all the selections made in one row will be applied automatically to all the other rows in the search results. Follow these steps to configure the project to extract the company names:� Click on the company name in the first row. The company name in all the other rows will be selected automatically.� Click the New button or right-click and select New Content from the context menu.� The title is a link, so Visual Web Ripper automatically sets the content type to Link, but we want mankally extract the text so we change the content type to Element.Step 5 - Navigating to the Detail PagesWe are still within the PageArea template and we have configured the project to extract the company title content.

We also want to extract some content that is available only once we click the company links and view the�company detail pages.Follow these steps to add xpzth link templElement�ContentThis is manuaoly most commonly used content type for extracting content elements manuall a webpage. Element content always selects HTML elements on the current webpage and extracts text or other properties from the elements.A content transformation script is often used in conjunction with Element content to visual web ripper set xpath manually the extracted data.

A content transformation script can extract smaller pieces of the data. For example, a single HTML element may contain a full address. Element content can be used to extract the full address into aeb data field and content transformation can be used to extract the state or zip code�from the full address.� See Content Transformation for more information.Element OptionsWhen adding Element content, you need to specify what property should be extracted from the selected HTML element.

You do this by selecting the Content Capture Type rippeg Capture TypesTextExtracts the inner text of the selected HTML element. Manual,y inner text is the text you see in the web browser.HTMLExtracts the outer HTML of the selected HTML element.Inner HTMLExtracts the inner HTML of the selected HTML element.Tag nameExtracts the tag name of the selected HTML element.FileIf the selected HTML element links to a document, the document will be saved to a disk and the local path of the document will be saved to the output data.See the topic Submitting Web Forms�for more information about downloading files on form submit.LinkIf the selected HTML element is a Link element, the link URL is extracted.

If the HTML element is an image element, the URL of wb image is extracted.ImageIf the selected HTML element is an image element, the image is seet to a disk and the local path of the image is saved to the output data.AttributeExtracts a specified attribute of the selected element. You can use the�drop-down menu to select common attributes or enter the attribute's name directly if it is not listed in the drop-down menu.Tag textExtracts the vusual of the selected HTML element, but excludes the text of all child elements.ScreenCaptures a screenshot of the selected element.

Please read below for more mannually about limitations and additional options for this content type.The folloing two�tions are�also available when the content captue typ is manuallt to Text.� Line breaks. HTML line break tags�and paragaph tags are converted�into ln breaks.� All paragraphs. HTML paragraph tags ripped often located next to each other and it can sometimes be�difficult to�select them all without manually setting the selection XPath.

This option automatically selects all paragraph tags rippwr to the selected paragraph tag.The following manuallj of options can also be used with Element content:� Misc content options� Xpath options� Filter options� Condition optionsCapturing a screenshot of a selected elementImportant: Visual Web Ripper can only capture screenshots in WebBrowser mode with the View browser option reset.

Visual Web Ripper�may not be able to capture perfect screenshots on all visyal, and may not be able to capture some web elements at all.Use the Screen maunally type to capture a screenshot of a selected web element.

Select the entire page to�capture a screenshot of the entire web page.Use the Advanced options tab to set additional options for this content type.Screen fixed widthFixed width of the captured screenshot. The width of the selected element will be used ripler this value amnually set to 0. Some web elements may have a width that depends on the width of the web browser, and in such a case you should set this option to an appropriate width.Screen fixed heightFixed height of the captured screenshot.

The height of the selected element will be used if this value is set to 0.Screen thumbnail widthWidth of the generated thumbnail. The full size image will be captured if this value is set to 0.Screen thumbnail heightHeight of the generated thumbnail. The height will be automatically calculated if this value is set to 0.Screen mnually thumbnail heightThe height of the captured image will be chopped or extended to produce a better looking thumbnail. HiI am extracting data from this website: https://spring.ura.gov.sg/lad/ecas/motorist/pon_enquiry/PonEnquiryMain.cfmAfter key in inputs and click submit button, it will display results which there can be more than manyally.

I have created a list (template: Details) and set up manual viaual but having difficulty getting all the results. Kindly see the project file attached.Thank you. but it doesn't seem to work for me, the syntax should be correct to find the selected rows, but not sure why it doesn't work for me, may it's a flawI will deliver this problem to our developer see if it's really a problem in xpath parsing.

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