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RAD Studio VCL Reference
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Variants.NullStrictConvert Variable
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RAD Studio VCL Reference
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Specifies whether Null conversion is an error.
NullStrictConvert: Boolean = True;Boolean NullStrictConvert = True;NullStrictConvert determines the outcome of attempts to convert Null variants to other types. If NullStrictConvert is true (default), attempting to convert a Null variant raises a EVariantTypeCastError, unless the conversion is to a custom variant that defines a conversion from Null. If NullStrictConvert is false, then conversion from Null follows the following rules:
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Destination |
Conversion result |
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Numeric type |
Zero |
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String type |
Value of NullAsStringValue global variable. (Default: empty string.) |
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Boolean |
False. |
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