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Is there any way to type casting from NumberUpDown to string?
Couldn't get much help from msdn :(

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asked about converting a Number/NumericUpDown to a string; correctly pointed to using the control's numeric value and converting it to text. A few clarifications and practical notes follow.

In Windows Forms the NumericUpDown control exposes a Value property of type System.Decimal; that numeric value should be converted rather than "cast" to a string (casting with (string) is invalid for value types). See the control documentation for the exact property type and behavior: NumericUpDown.Value documentation.

If the formatted display as shown in the UI is required (including grouping separators, fixed decimal places, or culture-specific formatting) read the control's displayed text via the Text property or use the numeric type's formatting overloads to produce the desired string. Formatting options and standard format strings for decimals are documented here: Decimal.ToString documentation.

Quick checklist:

  • Confirm which control implementation is in use (WinForms vs a third‑party WPF control) because the Value type can differ.
  • Avoid direct casting; use conversion/formatting methods appropriate to the numeric type.
  • Use the control's Text if the exact UI string (locale/format) is needed.
  • When binding or persisting values, convert before storing and apply explicit format/culture if consistency is required.

These points expand on 's answer and address common pitfalls (wrong cast, unexpected rounding, culture/format differences).

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Member Avatar for ddanbe

What is NumberUpDown ?

Member Avatar for ddanbe

OK I have it.(Have had a coffee now...)
You can have a string out of a Numeric Up Down control with:
MyNumUpDown.Value.ToString();

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