public async Task SetActivateTabAsync(ITab tab)
{
if (OnActiveTabChangingAsync != null)
{
var allowSwitching = await OnActiveTabChangingAsync(tab);
if (!allowSwitching)
{
return;
}
}
if (ActiveTab != null && ActiveTab.Name == tab.Name)
{
return;
}
ActiveTabName = tab.Name;
var eventArgs = new BChangeEventArgs <ITab>();
eventArgs.OldValue = ActiveTab;
eventArgs.NewValue = tab;
ActiveTab = tab;
StateHasChanged();
if (OnActiveTabChanged.HasDelegate)
{
await OnActiveTabChanged.InvokeAsync(eventArgs);
}
}
/// <summary>
/// Sets tab to active.
/// </summary>
/// <param name="tab"></param>
public async Task SetActiveAsync(XTab tab)
{
Active = tab;
if (OnActiveTabChanged.HasDelegate)
{
await OnActiveTabChanged.InvokeAsync(tab);
}
await NotifyStateHasChangedAsync();
}
internal async Task <bool> SetActivateTabAsync(BTabPanelBase tab)
{
if (OnActiveTabChanging.HasDelegate)
{
var arg = new BChangeEventArgs <BTabPanelBase>();
arg.NewValue = tab;
arg.OldValue = ActiveTab;
await OnActiveTabChanging.InvokeAsync(arg);
if (arg.DisallowChange)
{
return(false);
}
}
if (DataSource == null)
{
foreach (var tabPanel in tabPanels)
{
if (tabPanel == tab)
{
tabPanel.Activate();
continue;
}
tabPanel.DeActivate();
}
}
else
{
foreach (var item in DataSource)
{
item.IsActive = item.Name == tab.Name;
}
}
ActiveTab = tab;
var eventArgs = new BChangeEventArgs <BTabPanelBase>();
eventArgs.OldValue = ActiveTab;
eventArgs.NewValue = tab;
RequireRender = true;
if (OnActiveTabChanged.HasDelegate)
{
await OnActiveTabChanged.InvokeAsync(eventArgs);
}
else
{
StateHasChanged();
}
return(true);
}
public static void ActiveTabChanged(PanelTab tab)
{
OnActiveTabChanged?.Invoke(tab);
}
