/// <summary>
/// Provides the implementation for operations that invoke a member. Classes derived from the
/// <see cref="T:System.Dynamic.DynamicObject" /> class can override this method to specify dynamic behavior for
/// operations such as calling a method.
/// </summary>
/// <param name="binder">
/// Provides information about the dynamic operation. The binder.Name property provides the name of
/// the member on which the dynamic operation is performed. For example, for the statement
/// sampleObject.SampleMethod(100), where sampleObject is an instance of the class derived from the
/// <see cref="T:System.Dynamic.DynamicObject" /> class, binder.Name returns "SampleMethod". The binder.IgnoreCase
/// property specifies whether the member name is case-sensitive.
/// </param>
/// <param name="args">
/// The arguments that are passed to the object member during the invoke operation. For example, for the
/// statement sampleObject.SampleMethod(100), where sampleObject is derived from the
/// <see cref="T:System.Dynamic.DynamicObject" /> class, <paramref name="args[0]" /> is equal to 100.
/// </param>
/// <param name="result">The result of the member invocation.</param>
/// <returns>
/// true if the operation is successful; otherwise, false. If this method returns false, the run-time binder of the
/// language determines the behavior. (In most cases, a language-specific run-time exception is thrown.)
/// </returns>
public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result)
{
if (binder.Name != "SelectAll")
{
return(base.TryInvokeMember(binder, args, out result));
}
result = new DynamicXmlNodeList(_Xml.Elements());
return(true);
}
/// <summary>
/// Provides the implementation for operations that get member values. Classes derived from the
/// <see cref="T:System.Dynamic.DynamicObject" /> class can override this method to specify dynamic behavior for
/// operations such as getting a value for a property.
/// </summary>
/// <param name="binder">
/// Provides information about the object that called the dynamic operation. The binder.Name property
/// provides the name of the member on which the dynamic operation is performed. For example, for the
/// Console.WriteLine(sampleObject.SampleProperty) statement, where sampleObject is an instance of the class derived
/// from the <see cref="T:System.Dynamic.DynamicObject" /> class, binder.Name returns "SampleProperty". The
/// binder.IgnoreCase property specifies whether the member name is case-sensitive.
/// </param>
/// <param name="result">
/// The result of the get operation. For example, if the method is called for a property, you can
/// assign the property value to <paramref name="result" />.
/// </param>
/// <returns>
/// true if the operation is successful; otherwise, false. If this method returns false, the run-time binder of the
/// language determines the behavior. (In most cases, a run-time exception is thrown.)
/// </returns>
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
string name = binder.Name;
switch (name)
{
case "Name":
result = _Xml.Name.LocalName;
return(true);
case "Value":
result = _Xml.Value;
return(true);
case "Elements":
result = new DynamicXmlNodeList(_Xml.Elements());
return(true);
case "Parent":
result = new DynamicXmlNode(_Xml.Parent);
return(true);
default:
XAttribute xattribute = _Xml.Attribute(name);
if (xattribute != null)
{
result = xattribute.Value;
return(true);
}
XElement xelement = _Xml.Element(name);
if (xelement != null)
{
result = xelement.Value;
return(true);
}
foreach (XElement element in _Xml.Elements())
{
if (MakePluralName(element.Name.LocalName) == name)
{
result = new DynamicXmlNodeList(_Xml.Elements(element.Name));
return(true);
}
}
return(base.TryGetMember(binder, out result));
}
}
