FExpressionEditor Variable

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

Declaration

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.