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Asked: 2026-05-16T14:57:35+00:00

A UInteger data type holds any value between 0 and 4,294,967,295 (ref. MSDN ).

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A UInteger data type holds any value between 0 and 4,294,967,295 (ref. MSDN).

If I try this code in VB.NET, I get a compiler error:

Dim Test As UInteger = &HFFFFFFFF

Error: “Constant expression not representable in type ‘UInteger’.

Why I can’t set 0xFFFFFFFF (4,294,967,295) to a UInteger if this type can hold this value?

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1 Answer

  1. Editorial Team

    I believe it’s because the literal &HFFFFFFFF is interpreted by the VB.NET compiler as an Integer, and that value for an Integer is a negative number (-1), which obviously can’t be cast to a UInteger.

    This issue is easily fixed by writing &HFFFFFFFFUI, appending the UI suffix to treat the literal as a UInteger.

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