# Getting Started

## Mask Elements

Element name | Definition | Usage | Example
Radio Buttons | Field for selection of an option from a group of available options. Only one option can be selected at one time. The other radio buttons remain unselected. | Click in the field in front of the text in order to select the option. |
Check Boxes | Checkboxes can be used to select one or more options. Dependent on the client in use, the display of available checkbox states is different: Windows Client
State | Appearance of the checkbox
OFF |
ON |
NULL (UNSET) |
NOT NULL |
In the Windows Client five settings are available. The first (untouched) grey background of the logical field means "unset" while if ever changed in query mode the grey background means "NULL"! If the logical field is an obligatory field, it must not have to value NULL. For this reason not all states are available when a check box is edited in Insert-and Update modes! Java Client
State | Appearance of the checkbox
OFF |
ON |
NULL |
NOT NULL |
UNSET |
In query mode one can toggle through all states by clicking with the mouse or by pressing the space bar. In edit mode one can only choose between the three states NULL, ON and OFF if the field is not mandatory, or the two states TRUE and OFF if the field is mandatory! |  |
Clickable Fields | Clickable fields are hyperlinks to other records like items and projects, or to URLs. When you move the mouse over a clickable field the cursor becomes a hand. The hyperlink function can be selected by clicking the mouse. | Click on the record....... |
Tabs | Tabs are found in masks consisting of a header form and various associated application objects with related data. The related data are displayed in the tabs in lists or subforms, and can be edited there. | Click on the desired tab in order to activate a sublist. Arrow buttons on the right side of the system screen allow you to scroll to other tabs. |
Selection menu | By clicking on the arrow button a selection menu, or a selection list is opened. There you can choose from a predefined list of data. | Click on the arrow to open the selection menu or list. |
Buttons | Within a mask, some of the more important functions are assigned to buttons for fast selection. | The buttons are context-sensitive. Only those buttons are active whose functions are actually available. Screen buttons |
Incons in Field Titles and Field Values | Field titles and field values can be displayed as text only, text and icon, or icon only. The Windows client can only show icons OR text. NOT both. Icons can only be activated for field titles and values of type String. They should not be applied to fields that are used with Business Logic. It is also possible to activate the icons for a specific mask only. |  |

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