/// <summary>
/// Returns true if the given transform can be converted into a string
/// </summary>
public override bool CanConvertToString(object value, IValueSerializerContext context)
{
ImageSource imageSource = value as ImageSource;
#pragma warning disable 6506
return imageSource != null && imageSource.CanSerializeToString();
#pragma warning restore 6506
}
/// <summary>
/// Converts a font family to a string.
/// </summary>
public override string ConvertToString(object value, IValueSerializerContext context)
{
FontFamily fontFamily = value as FontFamily;
if (fontFamily == null || fontFamily.Source == null)
throw GetConvertToException(value, typeof(string));
return fontFamily.Source;
}
/// <summary>
/// Determines whether the specified object can be converted into a <see cref="String"/>.
/// </summary>
/// <param name="value">The object to evaluate for conversion.</param>
/// <param name="context">Context information that is used for conversion.</param>
/// <returns>
/// <see langword="true"/> if the <paramref name="value"/> can be converted into a
/// <see cref="String"/>; otherwise, <see langword="false"/>.
/// </returns>
public override bool CanConvertToString(object value, IValueSerializerContext context)
{
var gesture = value as MultiKeyGesture;
return gesture != null
&& ModifierKeysConverter.IsDefinedModifierKeys(gesture.Modifiers)
&& MultiKeyGestureConverter.IsDefinedKey(gesture.Key);
}
public override bool CanConvertToString (object value, IValueSerializerContext context)
{
if (!(value is DateTime))
throw new ArgumentException ("Can only convert objects of type 'DateTime'");
return true;
}
/// <summary>
/// CanConvertToString()
/// </summary>
/// <param name="value"></param>
/// <param name="context"></param>
/// <returns></returns>
/// <ExternalAPI/>
public override bool CanConvertToString(object value, IValueSerializerContext context)
{
if (!(value is Key))
return false;
Key key = (Key)value;
return ((int)key >= (int)Key.None && (int)key <= (int)Key.OemClear);
}
public XamlObjectNodeIterator (object root, XamlSchemaContext schemaContext, IValueSerializerContext vctx, XamlObjectReaderSettings settings)
{
ctx = schemaContext;
this.root = root;
value_serializer_ctx = vctx;
this.settings = settings;
}
public override object ConvertFromString (string value, IValueSerializerContext context)
{
if (value == null)
throw new NotSupportedException ();
if (value.Length == 0)
return DateTime.MinValue;
return DateTime.Parse (value, CultureInfo.InvariantCulture, styles);
}
/// <summary>
/// Converts a transform into a string.
/// </summary>
public override string ConvertToString(object value, IValueSerializerContext context)
{
ImageSource imageSource = value as ImageSource;
if (imageSource != null)
return imageSource.ConvertToString(null, System.Windows.Markup.TypeConverterHelper.InvariantEnglishUS);
else
return base.ConvertToString(value, context);
}
/// <summary>
/// ConvertFromString()
/// </summary>
/// <param name="value"></param>
/// <param name="context"></param>
/// <returns></returns>
public override object ConvertFromString(string value, IValueSerializerContext context)
{
TypeConverter converter = TypeDescriptor.GetConverter(typeof(MouseAction));
if (converter != null)
return converter.ConvertFromString(value);
else
return base.ConvertFromString(value, context);
}
public override bool CanConvertToString(object value, IValueSerializerContext context)
{
if (AttachablePropertyServices.GetAttachedPropertyCount(value) > 0)
{
return false;
}
return (((value != null) && (value is IValueSerializableExpression)) && ((IValueSerializableExpression) value).CanConvertToString(context));
}
internal static string ConvertToStringWrapper(object value, IValueSerializerContext context)
{
if (valueSerializer == null)
{
valueSerializer = new ActivityWithResultValueSerializer();
}
return valueSerializer.ConvertToString(value, context);
}
/// <summary>
/// Creates a FontFamily from a string
/// </summary>
public override object ConvertFromString(string value, IValueSerializerContext context)
{
if (string.IsNullOrEmpty(value))
{
throw GetConvertFromException(value);
}
return new FontFamily(value);
}
/// <summary>
/// Converts a <see cref="String"/> to an instance of the type that the implementation of
/// <see cref="ValueSerializer"/> supports.
/// </summary>
/// <param name="value">The string to convert.</param>
/// <param name="context">Context information that is used for conversion.</param>
/// <returns>
/// A new instance of the type that the implementation of <see cref="ValueSerializer"/>
/// supports based on the supplied <paramref name="value"/>.
/// </returns>
/// <exception cref="NotSupportedException">
/// <paramref name="value"/> cannot be converted.
/// </exception>
public override object ConvertFromString(string value, IValueSerializerContext context)
{
var converter = TypeDescriptor.GetConverter(typeof(KeyGesture));
if (converter != null)
return converter.ConvertFromString(value);
return base.ConvertFromString(value, context);
}
/// <summary>
/// ConvertToString()
/// </summary>
/// <param name="value"></param>
/// <param name="context"></param>
/// <returns></returns>
public override string ConvertToString(object value, IValueSerializerContext context)
{
TypeConverter converter = TypeDescriptor.GetConverter(typeof(Key));
if (converter != null)
return converter.ConvertToInvariantString(value);
else
return base.ConvertToString(value, context);
}
public override object ConvertFromString(string value, IValueSerializerContext context)
{
if (value != null)
{
return DataRect.Parse(value);
}
return base.ConvertFromString(value, context);
}
public override string ConvertToString(object value, IValueSerializerContext context)
{
VisualBasicSettings settings = value as VisualBasicSettings;
if ((settings != null) && settings.SuppressXamlSerialization)
{
return "Assembly references and imported namespaces for internal implementation";
}
return "Assembly references and imported namespaces serialized as XML namespaces";
}
public static ValueSerializer GetSerializerFor(Type type, IValueSerializerContext context)
{
ValueSerializer s = context.GetValueSerializerFor (type);
if (s == null) {
DefaultValueSerializerContext defaultContext = new DefaultValueSerializerContext();
s = defaultContext.GetValueSerializerFor (type);
}
return s;
}
public override string ConvertToString(object value, IValueSerializerContext context)
{
Argument argument = value as Argument;
if (argument == null)
{
throw FxTrace.Exception.Argument("value", System.Activities.SR.CannotSerializeExpression(value.GetType()));
}
return argument.ConvertToString(context);
}
public static ValueSerializer GetSerializerFor(PropertyDescriptor descriptor, IValueSerializerContext context)
{
ValueSerializer s = context.GetValueSerializerFor (descriptor);
if (s == null) {
DefaultValueSerializerContext defaultContext = new DefaultValueSerializerContext();
s = defaultContext.GetValueSerializerFor (descriptor);
}
return s;
}
void SetupReaderService ()
{
Context = null;
var obj = new TestValueSerialized ();
var xr = new XamlObjectReader (obj);
while (!xr.IsEof && Context == null)
xr.Read ();
Assert.IsNotNull (Context, "SetupReader #1");
}
public override bool CanConvertToString(object value, IValueSerializerContext context)
{
Argument argument = value as Argument;
if (argument == null)
{
return false;
}
return argument.CanConvertToString(context);
}
public override string ConvertToString(object value, IValueSerializerContext context)
{
IValueSerializableExpression expression = value as IValueSerializableExpression;
if (expression == null)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(System.Activities.SR.CannotSerializeExpression(value.GetType())));
}
return expression.ConvertToString(context);
}
/// <summary>
/// Returns true if the FontFamily is a named font family.
/// </summary>
public override bool CanConvertToString(object value, IValueSerializerContext context)
{
FontFamily fontFamily = value as FontFamily;
// Suppress PRESharp warning that fontFamily can be null; apparently PRESharp
// doesn't understand short circuit evaluation of operator &&.
#pragma warning suppress 56506
return fontFamily != null && fontFamily.Source != null && fontFamily.Source.Length != 0;
}
public override string ConvertToString(object value, IValueSerializerContext context)
{
if (value is DataRect)
{
DataRect rect = (DataRect)value;
return rect.ConvertToString(null, CultureInfo.GetCultureInfo("en-us"));
}
return base.ConvertToString(value, context);
}
public override bool CanConvertToString(object value, IValueSerializerContext context)
{
VisualBasicSettings settings = value as VisualBasicSettings;
if (settings != null)
{
settings.GenerateXamlReferences(context);
}
return true;
}
/// <summary>
/// CanConvertToString()
/// </summary>
/// <param name="value"></param>
/// <param name="context"></param>
/// <returns></returns>
/// <ExternalAPI/>
public override bool CanConvertToString(object value, IValueSerializerContext context)
{
KeyGesture keyGesture = value as KeyGesture;
#pragma warning disable 6506
return (keyGesture != null)
&& ModifierKeysConverter.IsDefinedModifierKeys(keyGesture.Modifiers)
&& KeyGestureConverter.IsDefinedKey(keyGesture.Key);
#pragma warning restore 6506
}
public override string ConvertToString(object value, IValueSerializerContext context)
{
VisualBasicSettings settings = value as VisualBasicSettings;
if (settings != null && settings.SuppressXamlSerialization)
{
return ImplementationVisualBasicSettingsValue;
}
return VisualBasicSettingsValue;
}
public override string ConvertToString (object value, IValueSerializerContext context)
{
if (value == null)
throw new NotSupportedException ("Cannot convert null value to string.");
if (!(value is DateTime))
throw new NotSupportedException ("only objects of type 'DateTime' can be converted.");
return ((DateTime)value).ToString("s", CultureInfo.InvariantCulture);
}
public override string ConvertToString(object value, IValueSerializerContext context)
{
Argument argument = value as Argument;
if (argument == null)
{
// expect CanConvertToString() always comes before ConvertToString()
throw FxTrace.Exception.Argument("value", SR.CannotSerializeExpression(value.GetType()));
}
return argument.ConvertToString(context);
}
public override string ConvertToString(object value, IValueSerializerContext context)
{
IValueSerializableExpression ivsExpr;
ivsExpr = value as IValueSerializableExpression;
if (ivsExpr == null)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.CannotSerializeExpression(value.GetType())));
}
return ivsExpr.ConvertToString(context);
}
public override bool CanConvertFromString(string value, IValueSerializerContext context) => Converter.CanConvertFrom(typeof(string));
public override bool CanConvertToString(object value, IValueSerializerContext context) => Converter.CanConvertTo(typeof(string));
public override bool CanConvertToString(object value, IValueSerializerContext context)
{
return(true);
}
public override object ConvertFromString(string value, IValueSerializerContext context) => double.TryParse(value, out var result) ? result : 0;
public override string ConvertToString(object value, IValueSerializerContext context) => ((double)value).ToString(CultureInfo.InvariantCulture);
public override object ConvertFromString(string value, IValueSerializerContext context) => TypeHelper.ParseType(value);
public override IEnumerable <Type> TypeReferences(object value, IValueSerializerContext context)
{
yield break;
}
public override string ConvertToString(object value, IValueSerializerContext context) => Converter.ConvertToInvariantString(value);
public override bool CanConvertFromString(string value, IValueSerializerContext context) => true;
public override object ConvertFromString(string value, IValueSerializerContext context) => null;
public override string ConvertToString(object value, IValueSerializerContext context)
{
throw new NotImplementedException();
}
public override object ConvertFromString(string value, IValueSerializerContext context)
{
return(value);
}
public override string ConvertToString(object value, IValueSerializerContext context) => value.ToString();
public override object ConvertFromString(string value, IValueSerializerContext context) => CultureInfo.GetCultureInfo(value);
public override object ConvertFromString(string value, IValueSerializerContext context) => Enum.TryParse <T>(value, out var result) ? result : default(T);
public override object ConvertFromString(string value, IValueSerializerContext context)
{
return(TimeSpan.TryParse(value, out var timeSpan) ? timeSpan : TimeSpan.MaxValue);
}
public override string ConvertToString(object value, IValueSerializerContext context)
{
return(((TimeSpan)value).ToString());
}
public override object ConvertFromString(string value, IValueSerializerContext context)
{
return(DateTime.FromBinary(long.Parse(value)));
}
public override string ConvertToString(object value, IValueSerializerContext context) => ((CultureInfo)value).Name;
public override string ConvertToString(object value, IValueSerializerContext context) => TypeHelper.FormatBinary((Type)value);
// Return the type named by the given name
Type GetTypeFromName(string name, object context)
{
// use the parser context, if available. This allows early resolution.
// bchapman 5/8/2009 - I believe with System.Xaml there is never an old parserContext here.
// But cannot be sure.
ParserContext parserContext = context as ParserContext;
if (parserContext != null)
{
// Find the namespace prefix
string nsPrefix;
int nsIndex = name.IndexOf(':');
if (nsIndex == -1)
{
nsPrefix = string.Empty;
}
else
{
// Found a namespace prefix separator, so create replacement _pathString.
// String processing - split "foons" from "BarClass.BazProp"
nsPrefix = name.Substring(0, nsIndex).TrimEnd();
name = name.Substring(nsIndex + 1).TrimStart();
}
// Find the namespace URI, even if its the default one
string namespaceURI = parserContext.XmlnsDictionary[nsPrefix];
if (namespaceURI == null)
{
throw new ArgumentException(SR.Get(SRID.ParserPrefixNSProperty, nsPrefix, name));
}
TypeAndSerializer typeAndSerializer = parserContext.XamlTypeMapper.GetTypeOnly(namespaceURI, name);
return((typeAndSerializer != null) ? typeAndSerializer.ObjectType : null);
}
else
{
if (context is IServiceProvider)
{
IXamlTypeResolver xtr = (context as IServiceProvider).GetService(typeof(IXamlTypeResolver)) as IXamlTypeResolver;
if (xtr != null)
{
return(xtr.Resolve(name));
}
}
IValueSerializerContext serializerContext = context as IValueSerializerContext;
if (serializerContext != null)
{
ValueSerializer typeSerializer = ValueSerializer.GetSerializerFor(typeof(Type), serializerContext);
if (typeSerializer != null)
{
return(typeSerializer.ConvertFromString(name, serializerContext) as Type);
}
}
}
// if there's no parser or serializer context, use the tree context
DependencyObject hostElement = context as DependencyObject;
if (hostElement == null)
{
if (FrameworkCompatibilityPreferences.TargetsDesktop_V4_0)
{
// WPF "OneTime" Data binding can work inconsistently when running
// a .NET 4 application on .NET 4.5 compared to running it on .NET 4
// app targets 4.0, so return null, for compat
return(null);
}
else
{
hostElement = new DependencyObject(); // at least pick up the default namespaces
}
}
var wpfSharedSchemaContext = XamlReader.BamlSharedSchemaContext;
Type type = wpfSharedSchemaContext.ResolvePrefixedNameWithAdditionalWpfSemantics(name, hostElement);
return(type);
}
public override bool CanConvertFromString(string value, IValueSerializerContext context)
{
return(true);
}
public bool CanConvertToString(IValueSerializerContext context)
{
return(true);
}
public override string ConvertToString(object value, IValueSerializerContext context)
{
return(((DateTime)value).ToBinary().ToString());
}
public override bool CanConvertFromString(string value, IValueSerializerContext context)
{
// seems to return for any value
return(true);
}
public override object ConvertFromString(string value, IValueSerializerContext context) => Converter.ConvertFromInvariantString(value);
public override object ConvertFromString(string value, IValueSerializerContext context)
{
throw new NotImplementedException();
}
public override string ConvertToString(object value, IValueSerializerContext context)
{
return((string)value);
}
