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History Management

Introduction (0m 50s)

History Management in DataFlex (0m 52s)

Enabling History Management (1m 50s)

The State Hash (1m 55s)

Navigation Paths (2m 41s)

Manipulating the statehash view name (1m 30s)

Custom statehash (4m 39s)

Page title (2m 27s)

Tips and Tricks (5m 15s)

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Tips and Tricks

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History Management

Lesson 7 - Page title

This lesson will show how to manually change the title of an application.
The page title consists of 2 parts: the Application Title and the View Caption. Both can be set using a property.
For the Application Title, psApplicationTitle is changed in the Webapp Source
The View Caption can be changed by altering the psCaption for a view.
Apart from those properties, a title can also be manually built using two methods:
1. UpdatePageTitle can be called at any time to manually trigger an update of the page title
2. OnGeneratePageTitle can be implemented in the WebApp source to generate a custom title.

DEMONSTRATION

From the WebApp source, implement the OnGeneratePageTitle. Inside, write code to take the custom StateHash and append it to the page title.
To do this, a string, sHash, is created. Next, check if there is a valid view handle, by adding If hoView Begin. Then, call on OnDefineCustomStateHash here to fill the sHash with…
Send OnDefineCustomeStateHash of hoView (&sHash)
Next we’ll append the sHash to the title by…
Move (sTitle + “ – “ + sHash) to sTitle
To make this work, expand the Custom Text form (VwPersonZoom.wo).
Inside the onChange, add…
Send UpdatePageTitle
Compiling and running the application will show that when the form is filled out the value is now reflected in the page title.