/// <summary>
/// Removes the object from the model.
/// </summary>
public void Remove()
{
try
{
NavigationProperty navPropFrom = NavigationPropertyFrom;
NavigationProperty navPropTo = NavigationPropertyTo;
try
{
if (navPropFrom != null)
{
navPropFrom.Remove();
}
}
catch { }
try
{
if (navPropTo != null)
{
navPropTo.Remove();
}
}
catch { }
if (this.AssociationSetMapping != null)
{
this.AssociationSetMapping.Remove();
}
if (_associationElement.ParentNode != null)
{
_associationElement.ParentNode.RemoveChild(_associationElement);
if (_associationSetElement.ParentNode != null)
{
_associationSetElement.ParentNode.RemoveChild(_associationSetElement);
}
if (Removed != null)
{
Removed(this, new EventArgs());
}
}
}
catch (Exception ex)
{
try
{
ExceptionTools.AddExceptionData(ex, this);
}
catch { }
throw;
}
}
void NavigationPropertyTo_Removed(object sender, EventArgs e)
{
_navigationPropertyTo = null;
}
/// <summary>
/// Adds a navigation property to the entity type.
/// </summary>
/// <param name="navigationPropertyName">Name of the navigation property.</param>
/// <param name="modelAssociationSet">Association set that this navigation property is based on.</param>
/// <param name="fromRoleName">From-role. Normally the same as the from-role for the associationset, but can be reversed for recursive associations.</param>
/// <param name="fromRoleName">To-role. Normally the same as the To-role for the associationset, but can be reversed for recursive associations.</param>
/// <returns>A NavigationProperty object.</returns>
public NavigationProperty AddNavigationMember(string navigationPropertyName, ModelAssociationSet modelAssociationSet, string fromRoleName, string toRoleName)
{
try
{
if (!NavigationProperties.Any(np => np.Name.Equals(navigationPropertyName))
&& !MemberProperties.Any(mp => mp.Name.Equals(navigationPropertyName))
&& navigationPropertyName != this.Name)
{
NavigationProperty navigationProperty = new NavigationProperty(ParentFile, this, navigationPropertyName, modelAssociationSet, _entityTypeElement, fromRoleName, toRoleName);
_navigationProperties.Add(navigationProperty.Name, navigationProperty);
navigationProperty.NameChanged += new EventHandler<NameChangeArgs>(navprop_NameChanged);
navigationProperty.Removed += new EventHandler(navprop_Removed);
return navigationProperty;
}
else
{
throw new ArgumentException("A property named " + navigationPropertyName + " already exist in the type " + this.Name);
}
}
catch (Exception ex)
{
try
{
ExceptionTools.AddExceptionData(ex, this);
}
catch { }
throw;
}
}
void NavigationPropertyTo_Removed(object sender, EventArgs e)
{
_navigationPropertyTo = null;
}