public PropertyController(
object xiTarget,
string xiPropertyName,
NamedValueHolder[] xiAllowedValues)
: this(xiTarget, xiPropertyName, null, xiAllowedValues)
{
}
public PropertyController(
object xiTarget,
string xiPropertyName,
string xiPropertyUpdateEventName,
NamedValueHolder[] xiAllowedValues)
{
mTarget = xiTarget;
mProperty = mTarget.GetType().GetProperty(xiPropertyName);
if (mProperty == null) throw new ArgumentException(string.Format("Property \"{0}\" not found on type {1}", xiPropertyName, xiTarget.GetType()));
Type lPropType = mProperty.PropertyType;
mAllowedValues = xiAllowedValues;
if (!lPropType.IsEnum
&& lPropType != typeof(bool)
&& lPropType != typeof(System.Drawing.Color)
&& xiAllowedValues == null) throw new ArgumentException("If property is not enumerated or boolean, then you must provide an array of allowed values");
// have a guess at an update event name. Don't throw an exception
// if we guess wrong
bool lEventNameInferred = false;
if (xiPropertyUpdateEventName == null)
{
xiPropertyUpdateEventName = string.Format("On{0}Changed", xiPropertyName);
lEventNameInferred = true;
}
EventInfo lEv = mTarget.GetType().GetEvent(xiPropertyUpdateEventName);
if (lEv == null)
{
if (!lEventNameInferred)
throw new ArgumentException(string.Format("Event \"{0}\" not found on type {1}", xiPropertyUpdateEventName, xiTarget.GetType()));
}
else
{
if (!lEv.EventHandlerType.IsAssignableFrom(typeof(EventHandler)))
{
if (!lEventNameInferred)
throw new ArgumentException(string.Format("Event \"{0}\" is incompatible with System.EventHandler on type {1}", xiPropertyUpdateEventName, xiTarget.GetType()));
}
else
{
lEv.AddEventHandler(mTarget, new EventHandler(this.ValueChangeHandler));
}
}
}
