entitySelection.isAlterable( )

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4D v19

Description

The entitySelection.isAlterable( ) method returns True if the entity selection is alterable and False otherwise (see Shareable vs Alterable entity selections).

Example

You are about to display Form.products in a list box to allow the user to add new products. You want to make sure it is alterable so that the user can add new products without error:

 If(Not(Form.products.isAlterable()))

    Form.products:=Form.products.copy()

 End if

 ...

 Form.products.add(Form.product)