public virtual void CopyPropertiesFrom(object model)
{
//Properties holen
if (!(this.GetType().GetTypeInfo().IsAssignableFrom(model.GetType().GetTypeInfo())))
{
CopyPropertiesFromDifferentType(model);
return;
}
var props = model.GetType().GetRuntimeProperties();
//Wir verwenden hier GetRuntimeProperties anstelle von GetProperties. Das wird für
//.NET 4.5 beispielsweise per Projection auf GetProperties gemapped (öffentliche Member, aber die reichen),
//funktioniert aber auch in WinRt und Windows Phone.
foreach (var propItem in props)
{
try
{
object value = propItem.GetValue(model, null);
propItem.SetValue(this, value, null);
}
catch (Exception ex)
{
CopyPropertiesException copPropException = new CopyPropertiesException("Model property '" + propItem.Name + "' could not be copied to ViewModel property '" + propItem.Name + "'." + Environment.NewLine + "Reason: " + ex.Message);
if (IsDebugMode)
{
Debug.WriteLine("Model property '" + propItem.Name + "' could not be copied to ViewModel property '" + propItem.Name + "'." + Environment.NewLine + "Reason: " + ex.Message);
}
}
}
}
/// <summary>
/// Kopiert die Inhalte der Eigenschaften von einer anderen Instanz dieser Klasse in die aktuelle.
/// </summary>
/// <param name="model"></param>
/// <remarks></remarks>
public virtual void CopyPropertiesTo(object model)
{
//Properties holen
if (!(this.GetType().GetTypeInfo().IsAssignableFrom(model.GetType().GetTypeInfo())))
{
CopyPropertiesToDifferentType(model);
return;
}
var props = model.GetType().GetRuntimeProperties();
foreach (var propItem in props)
{
try
{
object value = propItem.GetValue(this, null);
propItem.SetValue(model, value, null);
}
catch (Exception ex)
{
CopyPropertiesException copPropException = new CopyPropertiesException("Model property '" + propItem.Name + "' could not be copied to ViewModel property '" + propItem.Name + "'." + Environment.NewLine + "Reason: " + ex.Message);
if (IsDebugMode)
{
Debug.WriteLine("Model property '" + propItem.Name + "' could not be copied to ViewModel property '" + propItem.Name + "'." + Environment.NewLine + "Reason: " + ex.Message);
}
}
}
}
private void CopyPropertiesFromDifferentType(object model)
{
//Liste erstellen, mit ViewModel- und Model-PropertyInfo-Objekten
//Create a list with ViewModel and Model PropertyInfo objects.
//INSTANT C# WARNING: Every field in a C# anonymous type initializer is immutable:
//ORIGINAL LINE: For Each propToPropItem In From propItem In GetType.GetRuntimeProperties Where propItem.GetCustomAttribute(Of ModelPropertyIgnoreAttribute)() Is Nothing
// Select New With { .ViewModelProperty = propItem, .ModelProperty = model.GetType.GetRuntimeProperty(If(propItem.GetCustomAttribute(Of ModelPropertyNameAttribute)() Is Nothing,
// propItem.Name, propItem.GetCustomAttribute(Of ModelPropertyNameAttribute).PropertyName))}
foreach (var propToPropItem in
from propItem in GetType().GetRuntimeProperties()
select new
{
ViewModelProperty = propItem,
ModelProperty = model.GetType().GetRuntimeProperty(((propItem.GetCustomAttribute <ModelPropertyNameAttribute>() == null) ?
propItem.Name : propItem.GetCustomAttribute <ModelPropertyNameAttribute>().PropertyName))
})
{
//Falls es die entsprechende Eigenschaft im Model nicht gibt, dann überspringen.
//Skip the ViewModel property, if a corresponding property does not exist in the model.
if (propToPropItem.ModelProperty == null)
{
continue;
}
//Liste Element für Element abarbeiten, und Werte aus der einen Eigenschaft in die andere Eigenschaft übernehmen.
//Interate through list item by item and copy the property values from one property to the other.
try
{
object value = null;
if (typeof(IDiscoverableValue).GetTypeInfo().IsAssignableFrom(propToPropItem.ModelProperty.PropertyType.GetTypeInfo()))
{
var source = (IDiscoverableValue)propToPropItem.ModelProperty.GetValue(model, null);
value = source.GetValue();
}
else
{
value = propToPropItem.ModelProperty.GetValue(model, null);
}
if (typeof(IDiscoverableValue).GetTypeInfo().IsAssignableFrom(propToPropItem.ViewModelProperty.PropertyType.GetTypeInfo()))
{
var target = (IDiscoverableValue)propToPropItem.ViewModelProperty.GetValue(this, null);
target.SetValue(value);
}
else
{
propToPropItem.ViewModelProperty.SetValue(this, value, null);
}
}
catch (Exception ex)
{
CopyPropertiesException copPropException =
new CopyPropertiesException("Model property '" + propToPropItem.ModelProperty.Name + "' could not be copied to ViewModel property '" + propToPropItem.ModelProperty.Name + "'." + Environment.NewLine + "Reason: " + ex.Message);
Debug.WriteLine("Model property '" + propToPropItem.ModelProperty.Name + "' could not be copied to ViewModel property '" + propToPropItem.ModelProperty.Name + "'." + Environment.NewLine + "Reason: " + ex.Message);
}
}
}
private void CopyPropertiesToDifferentType(object model)
{
//Liste erstellen, mit ViewModel- und Model-PropertyInfo-Objekten
//Create a list with ViewModel and Model PropertyInfo objects.
foreach (var propToPropItem in
from propItem in GetType().GetRuntimeProperties()
where (propItem.GetCustomAttribute <ModelPropertyIgnoreAttribute>() == null)
select new
{
ViewModelProperty = propItem,
ModelProperty = model.GetType().GetRuntimeProperty(((propItem.GetCustomAttribute <ModelPropertyNameAttribute>() == null) ?
propItem.Name : propItem.GetCustomAttribute <ModelPropertyNameAttribute>().PropertyName))
})
{
//Falls es die entsprechende Eigenschaft im Model nicht gibt, dann überspringen.
//Skip the ViewModel property, if a corresponding property does not exist in the model.
if (propToPropItem.ModelProperty == null)
{
continue;
}
//Liste Element für Element abarbeiten, und Werte aus der einen Eigenschaft in die andere Eigenschaft übernehmen.
//Interate through list item by item and copy the property values from one property to the other.
try
{
object value = null;
if (typeof(IDiscoverableValue).GetTypeInfo().IsAssignableFrom(propToPropItem.ViewModelProperty.PropertyType.GetTypeInfo()))
{
if (propToPropItem.ViewModelProperty.CanRead)
{
var source = (IDiscoverableValue)propToPropItem.ViewModelProperty.GetValue(this, null);
value = source.GetValue();
}
}
else
{
if (propToPropItem.ViewModelProperty.CanRead)
{
value = propToPropItem.ViewModelProperty.GetValue(this, null);
}
}
if (typeof(IDiscoverableValue).GetTypeInfo().IsAssignableFrom(propToPropItem.ModelProperty.PropertyType.GetTypeInfo()))
{
if (propToPropItem.ModelProperty.CanWrite)
{
var target = (IDiscoverableValue)propToPropItem.ModelProperty.GetValue(model, null);
target.SetValue(value);
}
}
else
{
if (propToPropItem.ModelProperty.CanWrite)
{
propToPropItem.ModelProperty.SetValue(model, value, null);
}
}
}
catch (Exception ex)
{
CopyPropertiesException copPropException = new CopyPropertiesException("ViewModel property '" + propToPropItem.ViewModelProperty.Name + "' could not be copied to Model property '" + propToPropItem.ModelProperty.Name + "'." + Environment.NewLine + "Reason: " + ex.Message);
if (IsDebugMode)
{
Debug.WriteLine("ViewModel property '" + propToPropItem.ViewModelProperty.Name + "' could not be copied to Model property '" + propToPropItem.ModelProperty.Name + "'." + Environment.NewLine + "Reason: " + ex.Message);
}
}
}
}