ControlError (Function)

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Controls, pages and windows

Functions for managing controls

ControlError

Presentation

Example

Modifying the values displayed

ControlExecuteClosing

ControlExecuteModification

CoordinateEditorToScreen

CoordinateScreenToEditor

Functions for managing controls

Modifying the values displayed

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ControlError (Function)

In french: ChampErreur

Warning
From version 17, FieldError is kept for backward compatibility. This function is replaced by ControlError.

Customizes the value displayed in the controls when the value cannot be displayed.

Versions 16 and later

This function is now available for WINDEV applications in Linux.

New in version 16

This function is now available for WINDEV applications in Linux.

Versions 18 and later

This function is now available in Windows Store apps mode.

New in version 18

This function is now available in Windows Store apps mode.

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

// Customize the feOverflow error
ControlError(feOverflow, "The control mask is too small")

Syntax

ControlError(<Type of error> , <Error message>)

<Type of error>: Constant

Type of error:
feOverflow The control value is greater than the input/display mask defined for the control. Value displayed by default (corresponds to 5 plus characters): "+++++"
feReadField Error while reading an item: the item does not exist, the data file is empty, ... Value displayed by default (corresponds to 4 sharp characters): "####"
feBrokenLink The value of linked item is not found (the linked value does not exist or an error occurred while it was read). Value displayed by default (corresponds to 3 sharp characters): "###"
ceNull The linked item is a HFSQL item that contains the NULL value. Value displayed by default (empty string): ""

<Error message>: Character string (with quotes)

New error message associated with the type of error.

Remarks

Modifying the values displayed

The new values will be effective for the forthcoming errors only. The values assigned to the control before using ControlError are not modified.

The change is global to the current program.

Component : wd250obj.dll