Count (Function)

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Controls, pages and windows

Functions for managing controls

Count

Presentation

Example

Invisible, inactive or grayed control

Various

See also

Functions for managing controls

Count (Function)

In french: Occurrence

Returns the number of occurrences of a control in a window, in a page or in a group of controls.

Versions 15 and later

This function is now available for the Java applications.

This function is now available for Android applications.

Versions 16 and later

This function is now available for the PHP sites.

This function is now available for WINDEV applications in Linux.

New in version 16

This function is now available for the PHP sites.

This function is now available for WINDEV applications in Linux.

This function is now available for the PHP sites.

This function is now available for WINDEV applications in Linux.

New in version 15

This function is now available for the Java applications.

This function is now available for Android applications.

Versions 16 and later

This function is now available for the PHP sites.

This function is now available for WINDEV applications in Linux.

New in version 16

This function is now available for the PHP sites.

This function is now available for WINDEV applications in Linux.

This function is now available for the PHP sites.

This function is now available for WINDEV applications in Linux.

This function is now available for the Java applications.

This function is now available for Android applications.

Versions 16 and later

This function is now available for the PHP sites.

This function is now available for WINDEV applications in Linux.

New in version 16

This function is now available for the PHP sites.

This function is now available for WINDEV applications in Linux.

This function is now available for the PHP sites.

This function is now available for WINDEV applications in Linux.

Versions 18 and later

This function is now available in Android Widget mode.

New in version 18

This function is now available in Android Widget mode.

Versions 19 and later

This function is now available in Windows Store Apps mode.

This function is now available for iPhone/iPad applications.

New in version 19

This function is now available in Windows Store Apps mode.

This function is now available for iPhone/iPad applications.

This function is now available in Windows Store Apps mode.

This function is now available for iPhone/iPad applications.

Versions 21 and later

This function is now available in Universal Windows 10 App mode.

New in version 21

This function is now available in Universal Windows 10 App mode.

Example

// Initialize the EDT_Caption control if it exists
IF Count(EDT_Caption) > 0 THEN
DISP_Caption()
END

Syntax

<Result> = Count(<Control name>)

<Result>: Integer

Number of controls with the same name found in the window or in the page.
Number of controls found in a group of controls.
0 if the control does not exist.

<Control name>: Character string (with or without quotes)

Name of the control or name of the group of controls.
If this parameter corresponds to an empty string (""), it is automatically replaced by the name of the control to which the current event belongs.
For the subscripted controls, there is no need to specify the subscript.

Remarks

Invisible, inactive or grayed control

An invisible, inactive or grayed control is considered as being found in the window or in the page.

Various

Caution: A control must not be directly used in a process where its existence is checked. A runtime error will occur if the control does not exist.

Example (of what not to do):

IF Count(EDT_Control1) > 0 THEN
EDT_Control1 = "Foo"
END

Example (of what to do):

IF Count(EDT_Control1) > 0 THEN
CallProcedure(EDT_Control1)
END

Component : wd250obj.dll