Parameters

value

A string that contains the number to convert.

provider

An object that supplies culture-specific formatting information.

Returns

A 64-bit unsigned integer that is equivalent to the number in value, or 0 (zero) if value is null.

Exceptions

Type	Reason
ArgumentNullException	value is a null reference.
FormatException	value cannot be converted to a numeric value.
OverflowException	The numeric value of value is greater than ulong.MaxValue or less than ulong.MinValue.

Remarks

The return value is the result of invoking ulong.Parse(string) on value.

provider is an IFormatProvider implementation that obtains a System.Globalization.NumberFormatInfo object. The System.Globalization.NumberFormatInfo object provides culture-specific information about the format of value. If provider is null, the System.Globalization.NumberFormatInfo object for the current culture is used.

If you prefer not to handle an exception if the conversion fails, you can call the ulong.TryParse(string, UInt64@) method instead. It returns a bool value that indicates whether the conversion succeeded or failed.

Requirements