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- Overview
- Available types
- Note: Internet browsers allow only one action on the page per treatment.
- Choosing a type of link
Choosing the type of link
WEBDEV proposes several types of links according to the action of the link on the page controls. The type of link is linked to the type of operation performed on the controls. The choice of the operation is performed in the description window of the link ("General" tab). The available types of operations are as follows: - Send values to the server (submit):
The link validates all the controls found in the current page and returns the value of the controls to the server. Then, the server performs the specified action. - Delete content of the controls in the browser (reset):
The link clears all the page controls (except for the controls reset programmatically). - Don't send anything to the server:
The link performs the requested action but it does not return the content of the controls found in the current page to the server.
Note: Internet browsers allow only one action on the page per treatment. Some types of links automatically trigger an action on the page (for example, "Send values to the server (submit)"). If the PageSubmit or EmailOpenMail functions are used in the "Browser click" event of these links (or in a procedure called by this event), this function will be ignored: only the link action will be performed. Consequences: Functions PageSubmit or EmailOpenMail cannot be used in a code that (automatically or not) causes an action.. These functions are ignored: - in the click code of a link that performs the "Send to server" operation
- in the click code of a link that performs the "other" operation whose action differs from "None"
- if PageSubmit is followed by EmailOpenMail (in the current process, in a procedure called by the current process or in another process called by Execute).
- if EmailOpenMail is followed by PageSubmit (in the current process, in a procedure called by the current process or in another process called by Execute).
To use PageSubmit or EmailOpenMail from a link ("Click" browser event of the button), the link must have the following characteristics ("General" tab of the description window): - Operation on fields: "None"
- Action: "None"
Let's see some "standard" examples for using links in a page: | | | | Action to perform | Example | Operation on the controls |
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| Send data of the current page to the server to be processed. | Registration form. The link is used to check the validity of the information entered and it displays a confirmation page. | Send value of controls to server (submit) | | Perform a process on the server, without retrieving the data of the current page. | Menu page with buttons. Each link is used to display a page of the site. | None | | Perform a process in browser code | Perform a simple calculation, an input check, ... | None | | Display a static page of the site | Display the home page of the site. | None | | Display a page external to the site | Start a search engine. | None | | Reset the page controls | Clear the controls of the current page. | Reset page controls |
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