private void SelectChameleonTypeHyperlink_Click(object sender, RoutedEventArgs e)
{
if (sender == null) return;
FrameworkElement element = ((Hyperlink)sender).Parent as FrameworkElement;
ChameleonBox box = element.GetParent<ChameleonBox>();
if (box == null) return;
Confirmation confirmation = new Confirmation()
{
Title = "Выберите тип значения",
Content = this.InfoBase
};
this.SelectDataTypeDialog.Raise(confirmation, response =>
{
if (response.Confirmed)
{
this.OnDataTypeSelected(box, response.Content as Entity);
}
else
{
DataGridCell cell = box.GetParent<DataGridCell>();
if (cell == null) return;
cell.IsEditing = false;
}
});
}
private static void OnChameleonValueChanged(DependencyObject target, DependencyPropertyChangedEventArgs args)
{
if (args.OldValue == args.NewValue) return;
ChameleonBox box = target as ChameleonBox;
if (box == null) return;
box.ChameleonValue = (args.NewValue == null ? null : args.NewValue);
}
public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
FrameworkElement element = container as FrameworkElement;
if (element == null)
{
return(null);
}
DataGridCell cell = element.GetParent <DataGridCell>();
bool isEditing = (cell == null || cell.IsEditing);
ChameleonBox box = item as ChameleonBox;
if (box == null)
{
return(null);
}
Type type = box.ChameleonType?.GetCLRType();
string templateName = isEditing ?
GetEditableTemplateName(type) :
GetReadOnlyTemplateName(type);
return(element.FindResource(templateName) as DataTemplate);
}
private void UserControl_ValueTypeChanged(object sender, DependencyPropertyChangedEventArgs e)
{
ChameleonBox box = sender as ChameleonBox;
if (box == null) return;
if (box.ContentTemplateSelector == null) return;
DataTemplate template = box.ContentTemplateSelector.SelectTemplate(box, (DependencyObject)sender);
box.ContentTemplate = template;
}
// ReferenceObject
private void SelectChameleonValueHyperlink_Click(object sender, RoutedEventArgs e)
{
if (sender == null) return;
FrameworkElement element = ((Hyperlink)sender).Parent as FrameworkElement;
ChameleonBox box = element.GetParent<ChameleonBox>();
if (box == null) return;
OnSelectReferenceObject(box, box.ChameleonType);
}
private static void OnChameleonTypeChanged(DependencyObject target, DependencyPropertyChangedEventArgs args)
{
if (args.OldValue == args.NewValue) return;
ChameleonBox box = target as ChameleonBox;
if (box == null) return;
box.ChameleonType = (args.NewValue == null ? null : (Entity)args.NewValue);
box.UserControl_ValueTypeChanged(box, args);
}
private void OnReferenceObjectSelected(ChameleonBox target, ReferenceProxy entity)
{
target.ChameleonValue = entity;
target.ChameleonType = entity.Type;
UpdateSourceObjectValue(target);
DataGridCell cell = target.GetParent<DataGridCell>();
if (cell == null) return;
cell.IsEditing = false;
}
private void UpdateSourceObjectValue(ChameleonBox box)
{
BindingExpression binding = this.GetBindingExpression(ChameleonBox.ChameleonValueProperty);
if (binding == null) return;
binding.UpdateSource();
object item = binding.DataItem;
if (item != null && item is Persistent)
{
((Persistent)item).Save();
}
}
private void OnDataTypeSelected(ChameleonBox target, Entity type)
{
if (type == null || type == Entity.Empty) return;
if (type.Code > 0)
{
OnSelectReferenceObject(target, type);
return;
}
target.ChameleonValue = Entity.GetDefaultValue(type);
UpdateSourceObjectValue(target);
DataGridCell cell = target.GetParent<DataGridCell>();
if (cell == null) return;
cell.IsEditing = false;
}
private void OnSelectReferenceObject(ChameleonBox box, Entity type)
{
Confirmation confirmation = new Confirmation() { Title = string.Empty, Content = type };
this.SelectReferenceObjectDialog.Raise(confirmation, response =>
{
if (response.Confirmed)
{
this.OnReferenceObjectSelected(box, response.Content as ReferenceProxy);
}
else
{
DataGridCell cell = box.GetParent<DataGridCell>();
if (cell == null) return;
cell.IsEditing = false;
}
});
}
private static void OnInfoBaseChanged(DependencyObject target, DependencyPropertyChangedEventArgs args)
{
ChameleonBox box = target as ChameleonBox;
if (box == null) return;
box.InfoBase = (args.NewValue == null ? null : (InfoBase)args.NewValue);
}
