/// <summary>
/// Removes the property from an associated collection/parent.
/// </summary>
public override void Remove()
{
var rootModel = this.Parent as IRootModel;
if (rootModel != null)
{
var e = new PropertyModelChildChangeEventArgs(rootModel, this);
this.RaiseChildPropertyRemovingEvent(e);
if (!e.Cancel)
{
if (!dictionary.Remove(key))
{
return;
}
rootModel.Refresh(PropertyRefreshReason.CollectionItemRemoved);
this.RaiseChildPropertyRemovedEvent(new PropertyModelChildChangeEventArgs(rootModel, this));
// Focus the first entry
var propGrid = rootModel.Source as PropertyGrid;
if (propGrid != null)
{
var propertyModel = propGrid.Items.OfType <IPropertyModel>().FirstOrDefault();
if (propertyModel != null)
{
propGrid.FocusItem(propertyModel);
}
}
}
}
}
/// <summary>
/// Occurs after a <see cref="IPropertyModel"/> representing a child is added to a parent <see cref="IPropertyModel"/>.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <c>PropertyModelChildChangeEventArgs</c> that contains the event data.</param>
private void OnPropertyGridChildPropertyAdded(object sender, PropertyModelChildChangeEventArgs e)
{
var person = e.ParentPropertyModel.Target as Person;
var message = string.Format("Added child to {0}, {1}", person.LastName, person.FirstName);
this.AppendMessage(message);
e.Handled = true;
}
/// <summary>
/// Occurs after a <see cref="IPropertyModel"/> representing a child is removed from a parent <see cref="IPropertyModel"/>.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <c>PropertyModelChildChangeEventArgs</c> that contains the event data.</param>
private void OnPropertyGridChildPropertyRemoved(object sender, PropertyModelChildChangeEventArgs e)
{
var parent = e.ParentPropertyModel.Target as Person;
var child = e.ChildPropertyModel.Value as Person;
var message = string.Format("Removed child {0}, {1} from parent {2}, {3}", child.LastName, child.FirstName, parent.LastName, parent.FirstName);
this.AppendMessage(message);
e.Handled = true;
}
/// <summary>
/// Occurs before a <see cref="IPropertyModel"/> representing a child is added to a parent <see cref="IPropertyModel"/>.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <c>PropertyModelChildChangeEventArgs</c> that contains the event data.</param>
private void OnPropertyGridChildPropertyAdding(object sender, PropertyModelChildChangeEventArgs e)
{
var person = e.ParentPropertyModel.Target as Person;
var message = string.Format("Adding child to {0}, {1}", person.LastName, person.FirstName);
this.AppendMessage(message);
var result = MessageBox.Show("Are you sure you want to add a new child?", "Confirm", MessageBoxButton.YesNo, MessageBoxImage.Question);
e.Cancel = (MessageBoxResult.No == result);
e.Handled = true;
}
/// <summary>
/// Occurs before a <see cref="IPropertyModel"/> representing a child is removed from a parent <see cref="IPropertyModel"/>.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <c>PropertyModelChildChangeEventArgs</c> that contains the event data.</param>
private void OnPropertyGridChildPropertyRemoving(object sender, PropertyModelChildChangeEventArgs e)
{
var parent = e.ParentPropertyModel.Target as Person;
var child = e.ChildPropertyModel.Value as Person;
var message = string.Format("Removing child {0}, {1} from parent {2}, {3}", child.LastName, child.FirstName, parent.LastName, parent.FirstName);
this.AppendMessage(message);
var result = MessageBox.Show(string.Format("Are you sure you want to remove {0}, {1}?", child.LastName, child.FirstName),
"Confirm", MessageBoxButton.YesNo, MessageBoxImage.Question);
e.Cancel = (MessageBoxResult.No == result);
e.Handled = true;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////
// PUBLIC PROCEDURES
/////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Adds a new child into to an associated collection/parent.
/// </summary>
public override void AddChild()
{
if (this.CanAddChild)
{
var rootModel = ((IDataModel)this).Parent as IRootModel;
if (rootModel != null)
{
var dictionary = rootModel.Value as Dictionary <string, string>;
if (dictionary != null)
{
var entry = new KeyValuePair <string, string>(this.DisplayName, this.ValueAsString);
var e = new PropertyModelChildChangeEventArgs(rootModel, entry);
this.RaiseChildPropertyAddingEvent(e);
if (!e.Cancel)
{
dictionary[entry.Key] = entry.Value;
rootModel.Refresh(PropertyRefreshReason.CollectionItemAdded);
this.RaiseChildPropertyAddedEvent(new PropertyModelChildChangeEventArgs(rootModel, entry));
this.DisplayName = null;
this.ValueAsString = null;
// Focus the entry that was created
var propGrid = rootModel.Source as PropertyGrid;
if (propGrid != null)
{
var propertyModel = propGrid.Items.OfType <IPropertyModel>().FirstOrDefault(m => m.Name == entry.Key);
if (propertyModel != null)
{
propGrid.FocusItem(propertyModel);
}
}
}
}
}
}
}
