Fig. 201: TCheckBox Icons
The TCheckBox allows the user to display and edit true and false values. The values are represented by hooks in the fields. In forms, the TCheckBox will mostly used for answering questions by "yes" or "no".
The TCheckBox gets the entry of the user and puts it in desired table column. Also databases, that do not support true and false values, can work with the SCheckBox. eva/3 Application Builder saves the informations in table columns with number values, accepted by the the database system.
Has the property Enabled the value false, the SCheckBox will be drawn grayed. Additionally the TCheckBox is no longer applicable for user input.
The property DefaultValue defines the default value of th efield, when creating a new data record. Instead of the SFormattedField, here only true and false but not null values can be entered.
With the Icon properties, images for the several states can be assigned to the TCheckBox.
The property Text defines the marking, wich will be displayed beside the TCheckBox, when it will be activated.
Table Beans
TCheckBox Properties