protected virtual void OnFilterChanged()
{
if (!_applying)
{
FilterInvalidated?.Invoke(this, EventArgs.Empty);
}
}
protected void OnNestedFilterChanged(object sender, EventArgs e)
{
if (!_applying)
{
FilterInvalidated?.Invoke(sender, e);
}
}
public void Apply(Action action)
{
var isapplying = _applying;
try
{
if (!isapplying)
{
_applying = true;
}
action();
}
finally
{
if (!isapplying)
{
_applying = false;
}
}
if (!isapplying)
{
FilterInvalidated?.Invoke(this, EventArgs.Empty);
}
}
