private object GetCommandParameter(IDataContext context)
{
var target = BindingTarget;
if (target == null)
{
return(null);
}
var param = target.GetCommandParameter(context);
var path = param as string;
if (string.IsNullOrEmpty(path) ||
(!path.StartsWith("$args.", StringComparison.Ordinal) &&
!path.StartsWith("$arg.", StringComparison.Ordinal)))
{
return(param);
}
var args = context.GetData(BindingConstants.CurrentEventArgs);
if (args == null)
{
return(null);
}
return(BindingExtensions.GetValueFromPath(args, path, 1));
}
private void DataGridView1OnCellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
if (dataGridView1.Columns[e.ColumnIndex].DataPropertyName.Contains("."))
{
e.Value = BindingExtensions.GetValueFromPath(
dataGridView1.Rows[e.RowIndex].DataBoundItem,
dataGridView1.Columns[e.ColumnIndex].DataPropertyName);
}
}
public static T Resource <T>(this IBindingSyntaxContext context, string name, Expression <Func <T> > member)
{
var value = BindingServiceProvider
.ResourceResolver
.ResolveObject(name, MugenMvvmToolkit.Models.DataContext.Empty, true)
.Value;
return((T)BindingExtensions.GetValueFromPath(value, member.GetMemberInfo().Name));
}
public bool TryHandle(object sender, object message)
{
var view = _view;
if (!view.IsAlive())
{
Update(null);
return(false);
}
var activity = _view.Context.GetActivity();
if (activity == null)
{
Update(null);
Tracer.Warn("(PopupMenu) The contex of view is not an activity.");
return(false);
}
var templateId = (int)BindingServiceProvider
.MemberProvider
.GetBindingMember(_viewType, AttachedMemberNames.PopupMenuTemplate, false, true)
.GetValue(_view, null);
IBindingMemberInfo bindingMember = BindingServiceProvider
.MemberProvider
.GetBindingMember(_viewType, AttachedMemberNames.PlacementTargetPath, false, false);
if (bindingMember != null)
{
var path = (string)bindingMember.GetValue(view, null);
if (!string.IsNullOrEmpty(path))
{
var itemView = (View)BindingExtensions.GetValueFromPath(message, path);
if (itemView != null)
{
view = itemView;
}
}
}
var menu = new PopupMenu(activity, view);
activity.MenuInflater.Inflate(templateId, menu.Menu, view);
menu.SetOnDismissListener(DismissListener);
menu.Show();
return(true);
}
public bool TryHandle(object sender, object message)
{
var view = _view;
if (!view.IsAlive())
{
Update(null);
return(false);
}
var activity = _view.Context.GetActivity();
if (activity == null)
{
Update(null);
Tracer.Warn("(PopupMenu) The contex of view is not an activity.");
return(false);
}
var template = _view.GetBindingMemberValue(AttachedMembers.View.PopupMenuTemplate);
var path = _view.GetBindingMemberValue(AttachedMembers.View.PopupMenuPlacementTargetPath);
View itemView = null;
if (!string.IsNullOrEmpty(path))
{
itemView = (View)BindingExtensions.GetValueFromPath(message, path);
}
var menuPresenter = _view.GetBindingMemberValue(AttachedMembers.View.PopupMenuPresenter);
if (menuPresenter == null)
{
var menu = new PopupMenu(activity, itemView ?? view);
menu.Menu.ApplyMenuTemplate(template, activity, itemView ?? view);
menu.SetOnDismissListener(DismissListener);
menu.Show();
return(true);
}
return(menuPresenter.Show(view, itemView ?? view, template, message, (s, menu) => MenuTemplate.Clear(menu)));
}
public override string GetTitle(UIPickerView picker, nint row, nint component)
{
if (_itemsSource == null)
{
return(EmptyTitle);
}
object item = _itemsSource.ElementAtIndex((int)row);
if (item == null)
{
return(EmptyTitle);
}
if (!string.IsNullOrEmpty(DisplayMemberPath))
{
item = BindingExtensions.GetValueFromPath(item, DisplayMemberPath);
}
if (item == null)
{
return(EmptyTitle);
}
return(item.ToString());
}
