. NET Object serialization-TimeSpan

In WebServices, TimeSpan cannot be used as a system TimeSpan parameter. A new TimeSpan class is generated on the client.

I. Problem Reproduction

Create a Web Method with TimeSpan as the parameter:

1:  [WebMethod]

2:  public string HelloWorld(TimeSpan span)

3:  {

4:      return "Hello World";

5:  }

6:   

View the WSDL file and see the following content:

   1: <s:element name="HelloWorld">

   2: - <s:complexType>

   3: - <s:sequence>

   4:   <s:element minOccurs="1" maxOccurs="1" name="span" type="tns:TimeSpan" /> 

   5:   </s:sequence>

   6:   </s:complexType>

   7:   </s:element>

   8:   <s:complexType name="TimeSpan" /> 

When the client references Web Services, a new TimeSpan class is generated:

   1: public partial class TimeSpan : object, System.Runtime.Serialization.IExtensibleDataObject, System.ComponentModel.INotifyPropertyChanged {

   2:     

   3:     [System.NonSerializedAttribute()]

   4:     private System.Runtime.Serialization.ExtensionDataObject extensionDataField;

   5:     

   6:     [global::System.ComponentModel.BrowsableAttribute(false)]

   7:     public System.Runtime.Serialization.ExtensionDataObject ExtensionData {

   8:         get {

   9:             return this.extensionDataField;

  10:         }

  11:         set {

  12:             this.extensionDataField = value;

  13:         }

  14:     }

  15:     

  16:     public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;

  17:     

  18:     protected void RaisePropertyChanged(string propertyName) {

  19:         System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;

  20:         if ((propertyChanged != null)) {

  21:             propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));

  22:         }

  23:     }

  24: }

The method can only use the TimeSpan generated above:

Ii. Solution

Extended TimeSpan:

   1: public class TimeSpanEx

   2: {

   3:     [XmlElement(ElementName = "TimeSpan")]

   4:     public string TimeSpanAsString

   5:     {

   6:         get { return TimeSpan != null ? TimeSpan.ToString() : null; }

   7:         set

   8:         {

   9:             TimeSpan span;

  10:             if (value != null && TimeSpan.TryParse(value, out span))

  11:                 TimeSpan = span;

  12:             else

  13:                 TimeSpan = new TimeSpan();

  14:         }

  15:     }

  16:     [XmlIgnore]

  17:     public TimeSpan TimeSpan { get; set; }

  18: }

Pass TimeSpan through TimeSpan:

1:  [WebMethod]

2:  public string HelloWorld(TimeSpanEx span)

3:  {

4:      return "Hello World";

5:  }

6:   

Client example:

1:  WebService1SoapClient client = new WebService1SoapClient();

2:  TimeSpanEx span = new TimeSpanEx();

3:  span.TimeSpan = new TimeSpan(1, 2, 3).ToString();

4:  client.HelloWorld(span);

5:   

The TimeSpan result obtained by the server: