private void ActivatePane(AccordionPane tabPane)
{
if (!tabPane.Disabled && _panes.Contains(tabPane))
{
if (_activePane != null)
{
_activePane.IsActive = false;
}
tabPane.IsActive = true;
_activePane = tabPane;
if (_activeKey != _activePane.Key)
{
if (!string.IsNullOrEmpty(_activeKey))
{
if (ActiveKeyChanged.HasDelegate)
{
ActiveKeyChanged.InvokeAsync(_activePane.Key);
}
if (OnChange.HasDelegate)
{
OnChange.InvokeAsync(_activePane.Key);
}
}
_activeKey = _activePane.Key;
}
StateHasChanged();
}
}
internal void AddTabPane(AccordionPane tabPane)
{
if (string.IsNullOrEmpty(tabPane.Key))
{
throw new ArgumentNullException(nameof(tabPane), "Key is null");
}
if (_panes.Select(p => p.Key).Contains(tabPane.Key))
{
throw new ArgumentException("An AccordionPane with the same key already exists");
}
_panes.Add(tabPane);
if (AllowMultiplePanelActived)
{
tabPane.IsActive = true;
}
}
protected override void OnAfterRender(bool firstRender)
{
base.OnAfterRender(firstRender);
if (!firstRender || _panes.Count == 0)
{
return;
}
AccordionPane panel = null;
if (!string.IsNullOrEmpty(ActiveKey))
{
panel = _panes.FirstOrDefault(t => t.Key == ActiveKey);
}
if (panel == null)
{
panel = _panes.First();
}
ActivatePane(panel);
}
internal void HandleTabClick(AccordionPane tabPane)
{
if (AllowMultiplePanelActived)
{
tabPane.IsActive = !tabPane.IsActive;
}
else
{
if (tabPane.IsActive)
{
return;
}
if (OnTabClick.HasDelegate)
{
OnTabClick.InvokeAsync(tabPane.Key);
}
ActivatePane(tabPane);
}
}