internal static bool SwitchKeys(this ModelItemDictionary dictionary, ModelItem oldKey, ModelItem newKey)
{
if (null == dictionary)
{
throw FxTrace.Exception.AsError(new ArgumentNullException("dictionary"));
}
if (null == oldKey)
{
throw FxTrace.Exception.AsError(new ArgumentNullException("oldKey"));
}
if (null == newKey)
{
throw FxTrace.Exception.AsError(new ArgumentNullException("newKey"));
}
if (!dictionary.ContainsKey(oldKey))
{
throw FxTrace.Exception.AsError(new KeyNotFoundException(null == oldKey.GetCurrentValue() ? "oldKey" : oldKey.GetCurrentValue().ToString()));
}
bool result = false;
if (!dictionary.ContainsKey(newKey))
{
ModelItem value = dictionary[oldKey];
dictionary.Remove(oldKey);
dictionary[newKey] = value;
result = true;
}
return(result);
}
internal static bool SwitchKeys(this ModelItemDictionary dictionary, object oldKey, object newKey, out ModelItem newKeyItem)
{
if (null == dictionary)
{
throw FxTrace.Exception.AsError(new ArgumentNullException("dictionary"));
}
if (null == oldKey)
{
throw FxTrace.Exception.AsError(new ArgumentNullException("oldKey"));
}
if (null == newKey)
{
throw FxTrace.Exception.AsError(new ArgumentNullException("newKey"));
}
if (!dictionary.ContainsKey(oldKey))
{
throw FxTrace.Exception.AsError(new KeyNotFoundException(oldKey.ToString()));
}
bool result = false;
newKeyItem = null;
if (typeof(ModelItem).IsAssignableFrom(oldKey.GetType()) && typeof(ModelItem).IsAssignableFrom(newKey.GetType()))
{
result = SwitchKeys(dictionary, (ModelItem)oldKey, (ModelItem)newKey);
newKeyItem = (ModelItem)newKey;
}
else
{
if (typeof(ModelItem).IsAssignableFrom(oldKey.GetType()))
{
oldKey = ((ModelItem)oldKey).GetCurrentValue();
if (null == oldKey)
{
throw FxTrace.Exception.AsError(new InvalidOperationException("((ModelItem)oldKey).GetCurrentValue()"));
}
}
if (typeof(ModelItem).IsAssignableFrom(newKey.GetType()))
{
newKey = ((ModelItem)newKey).GetCurrentValue();
if (null == newKey)
{
throw FxTrace.Exception.AsError(new InvalidOperationException("((ModelItem)newKey).GetCurrentValue()"));
}
}
}
if (!dictionary.ContainsKey(newKey))
{
ModelItem value = dictionary[oldKey];
dictionary.Remove(oldKey);
dictionary[newKey] = value;
newKeyItem = dictionary.Keys.First <ModelItem>(p => object.Equals(p.GetCurrentValue(), newKey));
result = true;
}
return(result);
}
internal static string GetUniqueName(this ModelItemDictionary dictionary, string nameDefaultPrefix, Func <ModelItem, string> nameGetter)
{
if (dictionary != null)
{
return(dictionary.Keys.GetUniqueName(nameDefaultPrefix, nameGetter));
}
else
{
throw FxTrace.Exception.ArgumentNull("dictionary");
}
}
internal static bool TryGetPropertyValue(this ModelItem item, out ModelItemDictionary value, params string[] path)
{
ModelItem temp;
value = null;
bool result = TryGetPropertyValue(item, out temp, path);
if (null != item)
{
value = (ModelItemDictionary)temp;
}
return(result);
}
