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Variant.IsTextConstant() Method

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Version: Available or changed with runtime version 1.0.

Indicates whether an AL variant contains a Text constant.

Syntax

Ok :=   Variant.IsTextConstant()

Note

This method can be invoked using property access syntax.

Parameters

Variant
 Type: Variant
An instance of the Variant data type.

Return Value

Ok
 Type: Boolean
true if the AL variant contains a Text constant, otherwise false.

Example

The following example determines whether an AL variant contains a text constant. The code assigns the Text000 text constant to the variant variable that is named MyVariant. The IsTextCONSTANT method determines whether the variant contains a text constant and stores the return value in the varResult variable. In this case, the variant contains a text constant so Yes is returned and displayed in a message box.

var
    MyVariant: Variant;
    varResult: Boolean;
    Text000: Label 'This is some text.';
    Text001: Label 'Does the variant contain a text constant? %1.';
begin
    MyVariant := Text000;  
    varResult := MyVariant.IsTextConstant;  
    Message(Text001,MyVariant,varResult);  
    Message(Text001,varResult);  
end;

Variant Data Type
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