C# Attribute XmlIgnore and XamlWriter class - XmlIgnore not working
- by Horst Walter
I have a class, containing a property Brush MyBrush marked as [XmlIgnore]. Nevertheless it is serialized in the stream causing trouble when trying to read via XamlReader.
I did some tests, e.g. when changing the visibility (to internal) of the Property it is gone in the stream. Unfortunately I cannot do this in my particular scenario.
Did anybody have the same issue and?
Do you see any way to work around this?
Remark: C# 4.0 as far I can tell
This is a method from my Unit Test where I do test the XamlSerialization:
// buffer to a StringBuilder
StringBuilder sb = new StringBuilder();
XmlWriter writer = XmlWriter.Create(sb, settings);
XamlDesignerSerializationManager manager = new XamlDesignerSerializationManager(writer) {XamlWriterMode = XamlWriterMode.Expression};
XamlWriter.Save(testObject, manager);
xml = sb.ToString();
Assert.IsTrue(!String.IsNullOrEmpty(xml) && !String.IsNullOrEmpty(xml), "Xaml Serialization failed for " + testObject.GetType() + " no xml string available");
xml = sb.ToString();
MemoryStream ms = xml.StringToStream();
object root = XamlReader.Load(ms);
Assert.IsTrue(root != null, "After reading from MemoryStream no result for Xaml Serialization");
In one of my classes I use the Property Brush. In the above code this Unit Tests fails because of a Brush object not serializable is the value. When I remove the Setter (as below, the Unit Test passes. Using the XmlWriter (basically same test as above) it works. In the StringBuffer sb I can see that Property Brush is serialized when the Setter is there and not when removed (most likely another check ignoring the Property because of no setter). Other Properties with [XmlIgnore] are ignored as intended.
[XmlIgnore]
public Brush MyBrush
{
get { ..... }
// removed because of problem with Serialization
// set { ... }
}
