GetEvents Method (HTMLCONTROL)

10.9, PLBCMP GUI Only

The GetEvents method retrieves the data-plbevent attribute from a HTML element contained in a HTMLCONTROL object. The method gets the data-plbevent attribute from the HTML element that has an id attribute that matches the id parameter. This method uses the following format:

Where:

label

Optional. A Program Execution Label.

object

Required. A HTMLCONTROL that is accessed.

return

Optional. A Character String Variable that returns a string from a HTML element.

Id

Required. A Character String Variable or literal that contains the HTML element id attribute.

flags

Optional. A Numeric Variable or decimal value that specifies a bit mask value that controls the behavior of this method.

Flags Affected: EOS

Note the following:

1. This method retrieves the data-plbevent attribute value from a HTML element contained in a HTMLCONTROL object.

2. The EOS flag is set if the returned data string is larger than the DIM variable used to receive the data.

3. The {id} is a value that determines the HTML element used for data retrieval. The {id} string is matched against the id attribute of the HTML element.

4. The {return} string contains zero or more JavaScript event names which must be separated by a whitespace character delimiter. See this URL Link for more information on events:

 

https://developer.mozilla.org/en-US/docs/Web/Events

 

5. To receive JavaScript events in the PL/B program the EVENTREGISTER statement must be used to register the $JQueryEvent (event number 200) event for a HTMLCONTROL object.

6. The {flags} parameter is a bitmask value that forces specialized behaviors for the execution of this method.

Example of GetEvents Method:

For a HTMLCONTROL that contains a HTML element as follows:

<input type='text' class='myClass' data-plbenable='on' data-plbevent='change keypress click focus' id='MyEdit'>

This PL/B GetEvents method returns a value using the following instruction:

     HtmlControl.GetEvents Giving MyValue Using *ID="MyEdit" 

In this example, the data-plbevent HTML attribute is retrieved from the HTML element with the id attribute of "MyEdit".

The MyValue variable returns a string as follows:

     change keypress click focus

See Also: HTMLCONTROL Method Syntax