|
|
|
|
|
|
|
|
|
|
TriState (Property) In french: TroisEtats
The TriState property is used to: - Determine if a check box option supports 3 states (checked, unchecked or undefined) or 2 states (checked or unchecked).
- Determine if the check boxes of a TreeView control support 3 states (checked, unchecked or undefined) or 2 states (checked or unchecked)
- Change the type of an option in a check box: option with 3 states or with 2 states.
Remark: If the option supports the three states, it can take for value: - 0: the option is unchecked
- 1: the option is checked
- -1: the option is undefined (grayed)
At runtime, if the option supports three states, a first click performed on an unchecked option will check it and a second click will give it an unspecified value. Caution: A WLanguage error occurs if an option that supports 2 states takes -1 for value. Similarly, a WLanguage error occurs if a 3-state option initialized to -1 is changed into a 2-state option.
// Defines an unspecified option
CBOX_CheckBox1[1].TriState = True
CBOX_CheckBox1[1] = -1
Syntax
Determining if an element supports three states Hide the details
Result> = <Element name>.TriState
<Result>: Boolean - True if the option supports three states,
- False otherwise.
<Control used>: Control name Name of the control to be used: - Option of the Check Box control. The following syntax must be used: <Name of Check Box control>[<Option number>].
- TreeView control.
Managing the three states of an option in a Check Box control Hide the details
Check Box control>[<Option number>].TriState = <Management mode
<Check Box control>: Control name Name of Check Box control to use. <Option number>: Integer Number of the option to use. <Management mode>: Boolean - True to manage the three states,
- False otherwise.
Remarks The TriState property applies only to: - the options of a Check Box control.
- the TreeView controls (in read-only).
This page is also available for…
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|