public override void NotifyDeleting()
{
base.NotifyDeleting();
if (OnNotifyDeleting_RoleMembership != null)
{
OnNotifyDeleting_RoleMembership(this);
}
Relations.Clear();
}
/// <summary>
/// Clears this instance.
/// </summary>
public void Clear()
{
if (PrimaryKey != null)
{
PrimaryKey.Keys.Clear();
PrimaryKey = null;
}
Properties.Clear();
Relations.Clear();
AllProperties.Clear();
}
public virtual void Reset()
{
try
{
this.Clear();
Relations.Clear();
Tables.Clear();
}
finally
{
}
}
private void RemoveDataTables()
{
Relations.Clear();
foreach (DataTable dt in Tables)
{
ClearConstraintsOnTable(dt);
}
EnforceConstraints = false;
while (Tables.Count > 0)
{
Tables.RemoveAt(0);
}
EnforceConstraints = true;
}
private void New()
{
string messageBoxText = "Existing diagram will be overwritten";
string caption = "New Diagram";
MessageBoxButton button = MessageBoxButton.OKCancel;
MessageBoxImage icon = MessageBoxImage.Warning;
MessageBoxResult result = MessageBox.Show(messageBoxText, caption, button, icon);
if (result == MessageBoxResult.OK)
{
Klasses.Clear();
Relations.Clear();
}
}
private void Load()
{
OpenFileDialog dialog = new OpenFileDialog();
dialog.Title = "Open Diagram";
dialog.Filter = "Diagram files (*.dia)|*.dia";
dialog.RestoreDirectory = true;
if ((bool)dialog.ShowDialog())
{
// Load data from file
IFormatter formatter = new BinaryFormatter();
FileStream s = new FileStream(dialog.FileName, FileMode.Open);
try
{
ObservableCollection <Klass> t = (ObservableCollection <Klass>)formatter.Deserialize(s);
// Clear existing Klasses and Relations
Klasses.Clear();
Relations.Clear();
// Add loaded data
foreach (Klass k in t)
{
// Add Klass
Klasses.Add(k);
// Add Relations
foreach (Relation r in k.Relations)
{
if (!Relations.Contains(r))
{
Relations.Add(r);
}
}
}
_filepath = dialog.FileName;
}
catch (Exception)
{
MessageBox.Show("Please choose a valid Diagram file.");
}
}
}
public void Adopt(RelationSet relationSet)
{
Name = relationSet.Name;
CreateDate = relationSet.CreateDate;
ModifyDate = relationSet.ModifyDate;
Relations.Clear();
foreach (Relation relation in relationSet.Relations)
{
Relations.Add(relation.Clone());
}
Databases.Clear();
foreach (string database in relationSet.Databases)
{
Databases.Add(database);
}
}
public virtual void Reset()
{
// first we remove all ForeignKeyConstraints (if we will not do that
// we will get an exception when clearing the tables).
for (int i = 0; i < Tables.Count; i++)
{
ConstraintCollection cc = Tables[i].Constraints;
for (int j = 0; j < cc.Count; j++)
{
if (cc[j] is ForeignKeyConstraint)
{
cc.Remove(cc[j]);
}
}
}
Clear();
Relations.Clear();
Tables.Clear();
}
public DataContext RemoveAllRelations()
{
var newRelations = Relations.Clear();
return(WithRelations(newRelations));
}
public void ClearRelations()
{
Relations.Clear();
}