protected virtual ItemMovingEventArgs <T> OnItemRemoving(T item)
{
var evArg = new ItemMovingEventArgs <T>(item);
ItemRemoving?.Invoke(this, evArg);
return(evArg);
}
private void btnDelete_Click(object sender, EventArgs e)
{
object item = SelectedItem;
if (item != null)
{
int index = dgvAdditionalFiles.SelectedRows[0].Index;
AdditionalFilesEventArgs cancelEvent = new AdditionalFilesEventArgs(item);
ItemRemoving?.Invoke(this, cancelEvent);
if (!cancelEvent.Cancel)
{
m_files.Remove(item);
Rebind();
if (dgvAdditionalFiles.Rows.Count > 0)
{
if (index >= dgvAdditionalFiles.Rows.Count)
{
index = dgvAdditionalFiles.Rows.Count - 1;
}
dgvAdditionalFiles.Rows[index].Selected = true;
}
ItemRemoved?.Invoke(this, new AdditionalFilesEventArgs(item));
}
}
}
protected override void RemoveItem(int index)
{
var item = Items[index];
ItemRemoving?.Invoke(item, index);
base.RemoveItem(index);
}
public IGrabableItem RemoveItem(IGrabableItem item, bool triggerEvent = true)
{
if (triggerEvent)
{
ItemRemoving?.Invoke(this, item);
}
items.Remove(item);
return(item);
}
private void OnItemRemoving(object sender, ChipRemovingEventArgs e)
{
if (sender is Chip container)
{
var args = new ChipItemRemovingEventArgs(ItemFromContainer(container));
args.Cancel = e.Cancel;
ItemRemoving?.Invoke(this, new ChipItemRemovingEventArgs(ItemFromContainer(container)));
e.Cancel = args.Cancel;
}
}
/// <summary>
/// Remove the item at the specified index of this collection.
/// </summary>
/// <param name="index">The index of the item to remove.</param>
/// <returns><c>true</c> if the item is removed, otherwise <c>false</c>. It will be <c>false</c> if the removal was cancelled via the ItemRemoving event.</returns>
public new bool RemoveAt(int index)
{
T t = this[index];
ItemRemovingEventArgs <T> te = new ItemRemovingEventArgs <T>(t);
ItemRemoving?.Invoke(this, te);
if (te.Cancel)
{
return(false);
}
base.RemoveAt(index);
return(true);
}
/// <summary>
/// Removes the first occurrence of a specific object in the collection.
/// </summary>
/// <param name="item">The item to remove.</param>
/// <returns><c>true</c> if the item is removed, otherwise <c>false</c>. It may be <c>false</c> if the item isn't actually in the collection or if the removal was cancelled via the ItemRemoving event.</returns>
public new bool Remove(T item)
{
ItemRemovingEventArgs <T> te = new ItemRemovingEventArgs <T>(item);
ItemRemoving?.Invoke(this, te);
if (te.Cancel)
{
return(false);
}
bool res = base.Remove(item);
if (res && selectedItems.Contains(item))
{
selectedItems.Remove(item);
}
return(res);
}
private void OnRowClicked(ItemListRow row)
{
ItemRemoving?.Invoke(row.Item);
}
public void OnItemRemoved(ObservableListEventArgs <T> e)
{
ItemRemoving?.Invoke(this, e);
ItemRemoved?.Invoke(this, e);
}