/// <summary>
/// Creates temporary cache and sets value to the property
/// </summary>
/// <param name="aObject">
/// Object which needs value to be set <see cref="System.Object"/>
/// </param>
/// <param name="aProperty">
/// Property name <see cref="System.String"/>
/// </param>
/// <param name="aValue">
/// New property value <see cref="System.Object"/>
/// </param>
/// <returns>
/// true if successful, false if not <see cref="System.Boolean"/>
/// </returns>
public static bool UncachedSetValue(object aObject, string aProperty, object aValue)
{
bool res = false;
CachedProperty tempCache = new CachedProperty(aObject, aProperty);
if (tempCache.IsAccessValid == EPropertyAccess.Valid)
{
res = tempCache.SetValue(aObject, aProperty, aValue);
}
tempCache.Disconnect();
tempCache = null;
return(res);
}
/// <summary>
/// Sets value to cached property
/// </summary>
/// <param name="aObject">
/// Object where property resides <see cref="System.Object"/>
/// </param>
/// <param name="aProperty">
/// Property name <see cref="System.String"/>
/// </param>
/// <param name="aValue">
/// New value <see cref="System.Object"/>
/// </param>
/// <param name="aDefaultValue">
/// Default value which should be returned if method was unsuccessful <see cref="System.Object"/>
/// </param>
/// <returns>
/// true if successful, false if not <see cref="System.Boolean"/>
/// </returns>
public bool GetValue(object aObject, string aProperty, out object aValue, object aDefaultValue)
{
bool startMethod = false;
aValue = aDefaultValue;
if (IsCached == true)
{
if (aProperty == PropertyName)
{
startMethod = true;
}
}
else
{
if (IsCompatible(aObject) == true)
{
if (aProperty == PropertyName)
{
startMethod = IsCached;
}
}
}
// Start copying data
if (startMethod == true)
{
if (IsProperty == true)
{
aValue = ConnectionProvider.GetPropertyValue(aObject, propInfo);
return(true);
}
if (IsVirtualProperty == true)
{
aValue = propVirtual.Value;
return(true);
}
if (IsDataRowField == true)
{
return(DatabaseProvider.GetValue(aObject, propColumn, out aValue, aDefaultValue));
}
throw new ExceptionCachedPropertyGetValueFailed(this);
}
else
{
// If method arrived here then this is not a valid cache for that property
// fallback creates temporary cache and gets value trough it
return(CachedProperty.UncachedGetValue(aObject, aProperty, out aValue, aDefaultValue));
}
return(false);
}
/// <summary>
/// Creates temporary cache and gets value from the property
/// </summary>
/// <param name="aObject">
/// Object which needs value to be set <see cref="System.Object"/>
/// </param>
/// <param name="aProperty">
/// Property name <see cref="System.String"/>
/// </param>
/// <param name="aValue">
/// Property value <see cref="System.Object"/>
/// </param>
/// <param name="aDefaultValue">
/// Default value which should be returned if method was unsuccessful <see cref="System.Object"/>
/// </param>
/// <returns>
/// true if successful, false if not <see cref="System.Boolean"/>
/// </returns>
public static bool UncachedGetValue (object aObject, string aProperty, out object aValue, object aDefaultValue)
{
aValue = aDefaultValue;
bool res = false;
CachedProperty tempCache = new CachedProperty (aObject, aProperty);
if (tempCache.IsAccessValid == EPropertyAccess.Valid)
res = tempCache.GetValue (aObject, aProperty, out aValue, aDefaultValue);
tempCache.Disconnect();
tempCache = null;
return (res);
}
/// <summary>
/// Disconnects on adaptors OnTargetChange
/// </summary>
public void Disconnect()
{
if (dataCache != null)
dataCache.Disconnect();
dataCache = null;
if (controlCache != null)
controlCache.Disconnect();
controlCache = null;
if (IsSubItem == true)
MasterItem.Submappings.RemoveMapping (this);
else
if (submappings != null)
submappings.Disconnect();
submappings = null;
masterItem = null;
if (Adaptor != null)
{
Adaptor.TargetChanged -= TargetChanged;
adaptor.Target = null;
}
adaptor = null;
}
/// <summary>
/// Assigns Value in given direction between Control and DataSource Target
/// </summary>
/// <param name="aDirection">
/// Direction of data <see cref="EDataDirection"/>
/// </param>
/// <param name="aObject">
/// Object which contains data <see cref="System.Object"/>
/// </param>
/// <param name="aControl">
/// Control used to edit <see cref="System.Object"/>
/// </param>
/// <returns>
/// Returns true if successful <see cref="System.Boolean"/>
/// </returns>
public bool AssignValueToObject (EDataDirection aDirection, object aObject, object aControl)
{
bool res = false;
// Check if
if (IsGlobal == true) {
if (aDirection == EDataDirection.FromControlToDataSource)
throw new ExceptionGlobalMappingAssignedFromControlToTarget();
#if NEWCACHE
if (dataCache == null)
dataCache = new CachedProperty (Adaptor.FinalTarget, Name);
if (controlCache == null)
controlCache = new CachedProperty (aControl, MappingTarget);
if (controlCache.IsCached == true) {
object val;
if (dataCache.IsCached == true)
if (dataCache.GetValue (out val) == true)
if (controlCache.SetValue (val) == true) {
val = null;
return (true);
}
}
return (false);
#endif
#if OLDCACHE
object FromObject = aObject;
object ToObject = aControl;
string FromProperty = Name;
string ToProperty = MappingTarget;
// assign, direction is already correct
res = ConnectionProvider.CopyPropertyValue (FromObject, FromProperty, ToObject, ToProperty);
FromObject = null;
ToObject = null;
return (res);
#endif
}
else {
#if NEWCACHE
CachedProperty FromObject;
CachedProperty ToObject;
bool canbedone;
if (aDirection == EDataDirection.FromControlToDataSource) {
FromObject = controlCache;
ToObject = dataCache;
canbedone = AllowedToWrite;
if (ToObject is IObserveable)
(ToObject as IObserveable).ResetChangeCallCheckup();
}
else {
FromObject = dataCache;
ToObject = controlCache;
canbedone = AllowedToRead;
}
if (controlCache == null)
controlCache = new CachedProperty (aControl, MappingTarget);
object val = null;
// assign in set direction
if ((canbedone == true) && (FromObject != null) && (ToObject != null)) {
if (FromObject.GetValue (out val) == true) {
if (ToObject.SetValue (val) == true)
if (aDirection == EDataDirection.FromControlToDataSource)
if ((ToObject is IObserveable) == false)
DataSourceController.CallChangedFor (ToObject);
else
if ((ToObject as IObserveable).HasCalledForChange == false)
(ToObject as IObserveable).HasChanged = true;
res = true;
}
}
FromObject = null;
ToObject = null;
return (res);
#endif
#if OLDCACHE
object FromObject;
object ToObject;
string FromProperty;
string ToProperty;
bool canbedone;
// swap direction if needed
if (aDirection == EDataDirection.FromControlToDataSource) {
FromObject = aControl;
ToObject = aObject;
FromProperty = MappingTarget;
ToProperty = Name;
canbedone = AllowedToWrite;
if (ToObject is IObserveable)
(ToObject as IObserveable).ResetChangeCallCheckup();
}
else {
FromObject = aObject;
ToObject = aControl;
FromProperty = Name;
ToProperty = MappingTarget;
canbedone = AllowedToRead;
}
// assign in set direction
if (canbedone == true) {
if (ConnectionProvider.CopyPropertyValue(FromObject, FromProperty, ToObject, ToProperty) == true) {
if (aDirection == EDataDirection.FromControlToDataSource)
if ((ToObject is IObserveable) == false)
DataSourceController.CallChangedFor (ToObject);
else
if ((ToObject as IObserveable).HasCalledForChange == false)
(ToObject as IObserveable).HasChanged = true;
res = true;
}
// else
// Debug.Warning ("MappedProperty.AssignValueToObject", "CopyPropertyValue not successful");
}
FromObject = null;
ToObject = null;
return (res);
#endif
}
}
/// <summary>
/// Resoves PropertyInfo from connected object
/// </summary>
public bool Resolve()
{
#if NEWCACHE
if (dataCache == null)
dataCache = new CachedProperty (Adaptor.FinalTarget, Name);
if (resetResolve == true) {
dataCache.SetObject (Adaptor.FinalTarget);
dataCache.SetProperty (Name.Trim());
}
/* if (dataCache.IsAccessValid == EPropertyAccess.Invalid)
if (Adaptor.FinalTarget != null) {
dataCache.SetObject (Adaptor.FinalTarget);
dataCache.SetProperty (Name.Trim());
}*/
return (dataCache.IsAccessValid == EPropertyAccess.Valid);
#endif
#if OLDCACHE
if (cached == true)
return (true);
if (name == "")
return (false);
cached = false;
cachedInfo = null;
if (Adaptor.FinalTarget != null)
cachedInfo = ConnectionProvider.ResolveMappingProperty (Adaptor.FinalTarget, Name, false);
cached = (cachedInfo != null);
invalid = (cachedInfo == null);
return (cachedInfo != null);
#endif
}
/// <summary>
/// Creates temporary cache and gets value from the property
/// </summary>
/// <param name="aObject">
/// Object which needs value to be set <see cref="System.Object"/>
/// </param>
/// <param name="aProperty">
/// Property name <see cref="System.String"/>
/// </param>
/// <param name="aValue">
/// Property value <see cref="System.Object"/>
/// </param>
/// <returns>
/// true if successful, false if not <see cref="System.Boolean"/>
/// </returns>
/// <remarks>
/// calls CachedProperty.UncachedGetValue with null as default value
/// </remarks>
public static bool UncachedGetValue(object aObject, string aProperty, out object aValue)
{
return(CachedProperty.UncachedGetValue(aObject, aProperty, out aValue, null));
}
