Pierre Greborio.NET

Data extension for SQL Server Reporting Services

Priting DateTime following ISO 8601 spec.

With web services the dateTime type is formatted as point 3.2.7 of the XML schema datatype specification. When you use ASP.NET to develop web services this formatting is done by the XmlSerializer and then you don't have to care about it. But, if you work manually you have two ways to do this job:

1. use ToString() method of DateTime
   
   

   DateTime.Now.ToString("yyyy-MM-ddTHH\\:mm\\:ss.fffffffzzz");
   

2. use ToString() method of SoapDateTime class:
   
   

   System.Runtime.Remoting.Metadata.W3cXsd2001.SoapDateTime.ToString(dt);

Default value for elements on the WSDL

Sometimes you need to define a default value for an element into the WSDL type section. Consider the following XML snippet code:

<s:element minOccurs="0" maxOccurs="1" default="100" name="MaxLimit" type="s:double" />

to get the default value automatically you can set it by decorating the property (MaxLimit) with the attribute System.ComponentModel.DefaultValueAttribute as following:

[System.ComponentModel.DefaultValue(100)]
public double MaxLimit;

WSDL by attributes

Started to play with Indigo

XML Serialization and enums

Well, I was looking what ASP.NET web services generates when I have an enum parameter. Consider the following type:

public enum MyEnum : int
{
  EnumValue1 = 0,
  EnumValue2 = 2
}

I'm expecting something like

<xs:simpleType name="MyEnum">
 <xs:restriction base="xs:int">
  <xs:enumeration value="0" />
  <xs:enumeration value="2" />
 </xs:restriction>
</xs:simpleType>

But the xsd produces:

<xs:simpleType name="MyEnum">
 <xs:restriction base="xs:string">
  <xs:enumeration value="EnumValue1" />
  <xs:enumeration value="EnumValue2" />
 </xs:restriction>
</xs:simpleType>

Even if I'm decorating the enum values with System.Xml.Serialization.XmlEnumAttribute I can't get back an XML schema with a restriction of int instead of string. Why DataType of XmlElementAttribute doesn't work from primitives ? I don't know, but today I have to edit the WSDL manually.

Here I am...