TGIS_ValueValidatorComboBoxHelper class

Helper for TComboBox controls that validates editable numeric values.

Available also on: Delphi FMX.

Syntax

// Delphi
type
  TGIS_ValueValidatorComboBoxHelper = class( TGIS_ValueValidatorEditableControlHelper )
  end;

// C++ Builder
class PASCALIMPLEMENTATION TGIS_ValueValidatorComboBoxHelper : public TGIS_ValueValidatorEditableControlHelper
{
};

Inherited Overrides Protected

	Name	Visibility	Description
	Create	public	Creates a validator helper for an editable TComboBox control.

Inherited Overrides Protected

Name	Visibility	Description
acceptKey	protected	Checks whether a pressed key is accepted for numeric text entry. _{(Inherited from TGIS_ValueValidator)}
doChange	protected	Handles text changes and updates numeric value validation state. _{(Inherited from TGIS_ValueValidatorEditableControlHelper)}
doChangeValue	protected	Revalidates the current value after it changes. _{(Inherited from TGIS_ValueValidator)}
doKeyPress	protected	Handles key input and allows only characters accepted for numeric value entry. _{(Inherited from TGIS_ValueValidatorEditableControlHelper)}
getText	protected	Gets the current text representation of the validated numeric value. _{(Overrides TGIS_ValueValidatorEditableControlHelper.getText)}
invalidate	protected	_{(Inherited from TGIS_ValueValidatorEditableControlHelper)}
prepareValue	protected	Formats a numeric value as validator text using the current precision settings. _{(Inherited from TGIS_ValueValidator)}
setFontColor	protected	Sets the font color used to indicate the current validation state. _{(Overrides TGIS_ValueValidatorEditableControlHelper.setFontColor)}
setText	protected	Sets the validator text and updates the internal numeric value. _{(Overrides TGIS_ValueValidatorEditableControlHelper.setText)}
Valid	public	Checks whether the current value is within the MinVal..MaxVal range. _{(Inherited from TGIS_ValueValidator) (Implements IGIS_ValueValidator.Valid)}

Inherited Protected

Name	Visibility	Description
MaxVal	public	Maximum allowed numeric value. _{(Inherited from TGIS_ValueValidator) (Implements IGIS_ValueValidator.MaxVal)}
MinVal	public	Minimum allowed numeric value. _{(Inherited from TGIS_ValueValidator) (Implements IGIS_ValueValidator.MinVal)}
Precision	public	Number of decimal digits used when formatting and validating the value. _{(Inherited from TGIS_ValueValidator) (Implements IGIS_ValueValidator.Precision)}
Value	public	Current numeric value represented by the editable control. _{(Inherited from TGIS_ValueValidator) (Implements IGIS_ValueValidator.Value)}