Scroll Functions and Scroll Keys for Vertical Scrolling 

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Vertical scrolling is necessary when all the available information of table structures do not fit in a window.

First/Last Page

The First Page, Last Page function displays the first screen page and the last page of a table structure.

While the First page function always goes to the beginning of the table structure, the Last page function gets the user to:

123 --LS--> 7

123 --LS--> 567

Previous/Next Page

Previous Page scrolls one page back in a table structure, Next Page one page forwards. No overlapping occurs.

Exception: In the editor display and in text processing the display contains one overlapping line.

456 --VS--> 123 --NS--> 456 --NS--> 7

Remaining on the Last Page

If the user is on the last page and chooses Next page, the display remains on the last page.

456 --NS--> 7 --NS--> 7 123 --LS--> 7 --NS--> 7

Consistent Scrolling

If, in a table structure with a key, the user displays a page somewhere "between" actual pages and then chooses Previous Page and/or Next Page, the system displays the previous and/or next screen page relative to the current page display

123 Display as of 3: 345 --NS-> 67

Please note in the following example that the first Previous page consistently scrolls relative to the previous page display, the second Previous page, however, stops at the beginning of the table structure, because it is not possible to scroll back three complete screen pages.

123 --LS--> 567 --VS--> 234 --VS--> 123

Vertical Cyclical -Scrolling

Cyclical vertical scrolling is not allowed, because it would confuse the user.

Scroll Keys

Using the keyboard, the user scrolls by using the function keys F21-F24 , not the ENTER key. The scroll functions are assigned to the following function keys:

·

First page

F21, CTRL-PGUP (on workstations)

·

Previous page

F22, PGUP (on workstations)

·

Next page

F23, PGDN (on workstations)

·

Last page

F24, CTRL-PGDN (on workstations)

Scroll Arrows

In addition to the function keys F21-F24 , there are four scroll arrows in the standard toolbar which the user can activate with the mouse

The scroll arrows are removed from the Standard Toolbar as soon as correct performance of the Scroll Bars (Control Element) is guaranteed.