private Microsoft.Expression.DesignSurface.UserInterface.DataPane.XmlSchema GetXmlSchemaFromSchemaFile(Uri schemaFile, DocumentNode dataSource, out string errorMessage)
{
errorMessage = string.Empty;
Microsoft.Expression.DesignSurface.UserInterface.DataPane.XmlSchema xmlSchema = (Microsoft.Expression.DesignSurface.UserInterface.DataPane.XmlSchema)null;
try
{
bool isSchemaValid = true;
using (XmlReader reader = XmlReader.Create(schemaFile.ToString()))
{
System.Xml.Schema.XmlSchema schema = System.Xml.Schema.XmlSchema.Read(reader, (ValidationEventHandler)((sender, e) => isSchemaValid = false));
if (schema != null)
{
if (isSchemaValid)
{
XmlSchemaSet schemaSet = new XmlSchemaSet();
schemaSet.Add(schema);
schemaSet.Compile();
xmlSchema = new Microsoft.Expression.DesignSurface.UserInterface.DataPane.XmlSchema(schemaSet, dataSource);
}
}
}
}
finally
{
if (xmlSchema == null)
{
errorMessage = StringTable.XmlDataSourceSchemaReadError;
}
}
return(xmlSchema);
}
private Microsoft.Expression.DesignSurface.UserInterface.DataPane.XmlSchema InferXmlSchemaFromXmlFile(XmlReader xmlReader, DocumentNode dataSource, out string errorMessage)
{
errorMessage = string.Empty;
Microsoft.Expression.DesignSurface.UserInterface.DataPane.XmlSchema xmlSchema = (Microsoft.Expression.DesignSurface.UserInterface.DataPane.XmlSchema)null;
try
{
xmlSchema = new Microsoft.Expression.DesignSurface.UserInterface.DataPane.XmlSchema(new XmlSchemaInference().InferSchema(xmlReader), dataSource);
return(xmlSchema);
}
finally
{
if (xmlSchema == null)
{
errorMessage = StringTable.XmlDataSourceSchemaInferenceError;
}
}
}
public ISchema GetSchemaForDataSourceInternal(DocumentNode dataSource, out string errorMessage)
{
errorMessage = string.Empty;
ISchema schema = (ISchema)null;
IProjectItem designDataFile = DesignDataHelper.GetDesignDataFile(dataSource);
if (designDataFile != null)
{
return(this.GetSchemaForDesignDataFile(designDataFile));
}
if (this.schemaCache.TryGetValue(dataSource, out schema))
{
ClrObjectSchema clrObjectSchema = schema as ClrObjectSchema;
if (clrObjectSchema != null && clrObjectSchema.Root.Type != DataContextHelper.GetDataType(clrObjectSchema.DataSource.DocumentNode).RuntimeType)
{
this.schemaCache.Remove(dataSource);
schema = (ISchema)null;
}
if (schema != null)
{
return(schema);
}
}
if (dataSource != null)
{
if (PlatformTypes.XmlDataProvider.IsAssignableFrom((ITypeId)dataSource.Type))
{
Microsoft.Expression.DesignSurface.UserInterface.DataPane.XmlSchema xmlSchema = (Microsoft.Expression.DesignSurface.UserInterface.DataPane.XmlSchema)null;
try
{
Uri uriPropertyValue1 = this.GetUriPropertyValue(dataSource, DesignTimeProperties.SchemaUriProperty);
if (uriPropertyValue1 != (Uri)null)
{
xmlSchema = this.GetXmlSchemaFromSchemaFile(uriPropertyValue1, dataSource, out errorMessage);
}
else
{
Uri uriPropertyValue2 = this.GetUriPropertyValue(dataSource, XmlDataProviderSceneNode.SourceProperty);
if (uriPropertyValue2 != (Uri)null)
{
using (XmlReader xmlReader = XmlReader.Create(uriPropertyValue2.AbsoluteUri))
xmlSchema = this.InferXmlSchemaFromXmlFile(xmlReader, dataSource, out errorMessage);
}
else
{
string inlineXmlData = this.GetInlineXmlData(dataSource);
if (inlineXmlData != null)
{
using (StringReader stringReader = new StringReader(inlineXmlData))
{
using (XmlReader xmlReader = XmlReader.Create((TextReader)stringReader))
xmlSchema = this.InferXmlSchemaFromXmlFile(xmlReader, dataSource, out errorMessage);
}
}
}
}
}
catch
{
}
if (xmlSchema == null)
{
xmlSchema = new Microsoft.Expression.DesignSurface.UserInterface.DataPane.XmlSchema(dataSource);
}
schema = (ISchema)xmlSchema;
}
else
{
schema = SchemaManager.GetSchemaForType(this.GetTypeForDataSource(dataSource), dataSource);
}
}
if (schema == null)
{
schema = (ISchema) new EmptySchema();
}
if (dataSource.DocumentRoot != null)
{
this.schemaCache[dataSource] = schema;
}
return(schema);
}
