Add support for hexBinary types with a default value.

XmlSchemaClassGenerator.Tests/xsd/simple/simple.xsd

@@ -20,6 +20,7 @@
  <xs:element name="defaultDateTime" type="xs:dateTime" default="2004-04-12T13:20:00-05:00" />
  <xs:element name="defaultDate" type="xs:date" default="2004-04-12" />
  <xs:element name="defaultTime" type="xs:time" default="09:30:10Z" />
+ <xs:element name="defaultHexBinary" type="xs:hexBinary" default="F5FA" />
 
  <xs:element name="anyURIElement" type="xs:anyURI" />
  <xs:element name="base64BinaryElement" type="xs:base64Binary" />

XmlSchemaClassGenerator/TypeModel.cs

@@ -1281,6 +1281,22 @@ public override CodeExpression GetDefaultValueFor(string defaultString, bool att
  else
  return new CodePrimitiveExpression(Convert.ChangeType(defaultString, ValueType));
  }
+ else if(type == typeof(byte[]) && !string.IsNullOrWhiteSpace(defaultString))
+ {
+ int numberChars = defaultString.Length;
+ if(numberChars % 2 == 1)
+ throw new NotSupportedException(string.Format("Default value {0} is not a valid hexBinary value.", defaultString));
+
+ var byteValues = new CodePrimitiveExpression[numberChars / 2];
+ for (int i = 0; i < numberChars; i += 2)
+ byteValues[i / 2] = new CodePrimitiveExpression(Convert.ToByte(defaultString.Substring(i, 2), 16));
+
+ // For whatever reason, CodeDom will not generate a semicolon for the assignment statement if CodeArrayCreateExpression
+ // is used alone. Casting the value to the same type to work around this issue.
+ var rv = new CodeCastExpression(typeof(byte[]), new CodeArrayCreateExpression(typeof(byte), byteValues));
+ return rv;
+
+ }
 
  return new CodePrimitiveExpression(Convert.ChangeType(defaultString, ValueType, CultureInfo.InvariantCulture));
  }