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FExpressionEditor Variable

Specifies the “Expression Editor“ dialog class that container controls use.

#Declaration

Delphi
var FExpressionEditor: TdxExpressionEditorClass = TdxExpressionEditor;

#Variable Value

Type Description
TdxExpressionEditorClass

A reference to a “Expression Editor“ form class.

#Remarks

Assign a reference to a TdxExpressionEditor class descendant to this global variable to replace the default “Expression Editor” dialog with a custom implementation. This is particularly useful if you need to show custom lists of categories and/or elements or adjust the default dialog layout.

The ShowExpressionEditor global procedure uses the FExpressionEditor variable to call the constructor of the active “Expression Editor” dialog form class.

See Also