IsNullOrWhiteSpace()

static bool System.String.IsNullOrWhiteSpace ( [NotNullWhen(false)] string? value )

inlinestatic

Definition at line 1328 of file String.cs.

    {
        if ((object)value == null)
        {
            return true;
        }
        for (int i = 0; i < value.Length; i++)
        {
            if (!char.IsWhiteSpace(value[i]))
            {
                return false;
            }
        }
        return true;
    }

References System.value.