Question

I am workin on tab Controls in WPF. I have added a set of tabs in my tab control and also implemented Close button method which works fine.

private void CloseTab(object source, RoutedEventArgs args)
    {            
        TabItem tabItem = args.Source as TabItem; 

        if (tabItem != null)
        {
            TabControl tabControl = tabItem.Parent as TabControl;
            if (tabControl != null)
                tabControl.Items.Remove(tabItem);             

        }            
    }

XAML:

<TabControl Name="ConnectTab" Style="{DynamicResource styleBackground}">
                        <tablocal:CloseableTabItem Header="Connect" > 
                        </tablocal:CloseableTabItem>
                        <tablocal:CloseableTabItem Header="I2C" />
                        <tablocal:CloseableTabItem Header="Voltage" />
                        <tablocal:CloseableTabItem Header="Clock" />

The problem i am facing is to keep one tab active(shouldnt close) after all the tabs have been closed. Basically the last tab left in tabcontrol shud not close even if user clicks the X button on tab.

Answer 1

Change the condition to –

if (tabControl != null && tabControl.Items.Count > 1)
    tabControl.Items.Remove(tabItem);