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XmlConvert.ToDateTimeOffset Method (String, String)

Converts the supplied String to a DateTimeOffset equivalent.

Namespace:  System.Xml
Assemblies:   System.Xml (in System.Xml.dll)
  System.Xml.ReaderWriter (in System.Xml.ReaderWriter.dll)

public static DateTimeOffset ToDateTimeOffset(
	string s,
	string format
)

Parameters

s
Type: System.String

The string to convert.

format
Type: System.String

The format from which s is converted. The format parameter can be any subset of the W3C Recommendation for the XML dateTime type. (For more information see http://www.w3.org/TR/xmlschema-2/#dateTime.) The string s is validated against this format.

Return Value

Type: System.DateTimeOffset
The DateTimeOffset equivalent of the supplied string.

ExceptionCondition
ArgumentNullException

s is null.

FormatException

s or format is an empty string or is not in the specified format.

If the offset specified within the input string will cause an overflow in the deserialized representation of the DateTimeOffset, a FormatException is thrown.

When more than seven digits are specified for fractional seconds, the value is rounded. For example, 00000004 becomes 0000000 and 00000005 becomes 0000001.

The following example demonstrates how to read a string from an XML file and use the ToDateTimeOffset method to convert the string to a DateTimeOffset type. The input string is validated against the specified format before being converted.

using System;
using System.Xml;

class Example
{
    static void Main()
    {
        // Create an XmlReader, read to the "time" element, and read contents as type string
        XmlReader reader = XmlReader.Create("transactions.xml");
        reader.ReadToFollowing("time");
        string time = reader.ReadElementContentAsString();

        // Specify a format against which time will be validated before conversion to DateTimeOffset 
        // If time does not match the format, a FormatException will be thrown. 
        // The specified format must be a subset of the W3C Recommendation for the XML dateTime type 
        string format = "yyyy-MM-ddTHH:mm:sszzzzzzz";
        try
        {
            // Read the element contents as a string and covert to DateTimeOffset type
            DateTimeOffset transaction_time = XmlConvert.ToDateTimeOffset(time, format);
            Console.WriteLine(transaction_time);
        }
        catch(Exception e)
        {
            Console.WriteLine(e);
        }
    }
}

The example uses the transactions.xml file.

<?xml version="1.0"?>
<transactions>
   <transaction>
      <id>123456789</id>
      <amount>1.00</amount>
      <currency>USD</currency>
      <time>2007-08-03T22:05:13-07:00</time>
   </transaction>
</transactions>

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5 SP1, 3.0 SP1, 2.0 SP1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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