public PropertyViewModel(SectionViewModel parent, PropertyInfo property, ConfigurationPropertyAttribute attribute)
{
if (parent == null)
throw new ArgumentNullException("parent");
if (property == null)
throw new ArgumentNullException("property");
if (attribute == null)
throw new ArgumentNullException("attribute");
Parent = parent;
Property = property;
Attribute = attribute;
DefaultValue = Attribute.DefaultValue;
Value = DefaultValue;
}
public PropertyViewModel(SectionViewModel parent, PropertyInfo property, ConfigurationPropertyAttribute attribute)
{
if (parent == null)
{
throw new ArgumentNullException("parent");
}
if (property == null)
{
throw new ArgumentNullException("property");
}
if (attribute == null)
{
throw new ArgumentNullException("attribute");
}
Parent = parent;
Property = property;
Attribute = attribute;
DefaultValue = Attribute.DefaultValue;
Value = DefaultValue;
}
private async Task LoadAssembly(string assemblyFilename)
{
if (string.IsNullOrWhiteSpace(assemblyFilename))
{
throw new ArgumentException("Invalid 'assemblyFilename' argument");
}
Assembly assembly = null;
try
{
assembly = await Task.Factory.StartNew(() =>
{
try
{
return(Assembly.LoadFrom(assemblyFilename));
}
catch
{
return(null);
}
});
}
catch
{
return;
}
if (assembly == null)
{
return;
}
IEnumerable <Type> configurationSections = null;
try
{
configurationSections = assembly.GetTypes().Where(t => t.IsSubclassOf(typeof(ConfigurationSection)));
}
catch
{
return;
}
foreach (var configSection in configurationSections)
{
var hasValidProperties = false;
var sectionViewModel = new SectionViewModel(assembly, configSection);
var properties = await Task.Factory.StartNew(arg => ((Type)arg).GetProperties(BindingFlags.Public | BindingFlags.Instance), configSection);
foreach (var property in properties.OrderBy(p => p.Name))
{
var attribute = property.GetCustomAttributes(typeof(ConfigurationPropertyAttribute), true)
.Cast <ConfigurationPropertyAttribute>()
.FirstOrDefault();
if (attribute != null)
{
var propertyViewModel = new PropertyViewModel(sectionViewModel, property, attribute);
sectionViewModel.AddProperty(propertyViewModel);
hasValidProperties = true;
}
}
if (hasValidProperties)
{
workingSections.Add(sectionViewModel);
}
}
}
private void TrackPropertyChanged(SectionViewModel sectionViewModel)
{
sectionViewModel.PropertyChanged += OnViewModelPropertyChanged;
foreach (var child in sectionViewModel.Properties)
child.PropertyChanged += OnViewModelPropertyChanged;
}
private async Task LoadAssembly(string assemblyFilename)
{
if (string.IsNullOrWhiteSpace(assemblyFilename))
throw new ArgumentException("Invalid 'assemblyFilename' argument");
Assembly assembly = null;
try
{
assembly = await Task.Factory.StartNew(() =>
{
try
{
return Assembly.LoadFrom(assemblyFilename);
}
catch
{
return null;
}
});
}
catch
{
return;
}
if (assembly == null)
return;
IEnumerable<Type> configurationSections = null;
try
{
configurationSections = assembly.GetTypes().Where(t => t.IsSubclassOf(typeof(ConfigurationSection)));
}
catch
{
return;
}
foreach (var configSection in configurationSections)
{
var hasValidProperties = false;
var sectionViewModel = new SectionViewModel(assembly, configSection);
var properties = await Task.Factory.StartNew(arg => ((Type)arg).GetProperties(BindingFlags.Public | BindingFlags.Instance), configSection);
foreach (var property in properties.OrderBy(p => p.Name))
{
var attribute = property.GetCustomAttributes(typeof(ConfigurationPropertyAttribute), true)
.Cast<ConfigurationPropertyAttribute>()
.FirstOrDefault();
if (attribute != null)
{
var propertyViewModel = new PropertyViewModel(sectionViewModel, property, attribute);
sectionViewModel.AddProperty(propertyViewModel);
hasValidProperties = true;
}
}
if (hasValidProperties)
workingSections.Add(sectionViewModel);
}
}