Tab order

[IT Development]

Hello,

 

Having some trouble with the tabcontrol.

 

I want to remember tab visibility and order.  When the user closes the form I save the visible tabitems in a List<string> .

 

When the form gets loaded I would like to restore the tabs.

I can control the visibility of the tabs but I can’t find a way to restore the order.

 

Anybody got a suggestion?

 

Kind regards,

 

Tim van Rooijen

[Robert]

Hey Tim,

The tab order of a RadTabStrip is determined by the order of the TabItems in the RadTabStrip.Items collection. In the following code, I save the tab order to a list then restore the tab order in radTabStrip1 based on that list.

    public partial class Form1 : Form
    {
        List<string> tabOrder = new List<string>();

        public Form1()
        {
            InitializeComponent();
        }

        private void btnChangeTabOrder_Click(object sender, EventArgs e)
        {
            List<RadItem> tabItems = new List<RadItem>((IEnumerable<RadItem>)radTabStrip1.Items);

            radTabStrip1.Items.Clear();

            // Restore the tabs in order in the RadTabStrip
            foreach (string tabName in tabOrder)
            {
                foreach (TabItem item in tabItems)
                {
                    if (item.Name == tabName)
                        radTabStrip1.Items.Add(item);
                }
            }
        }

        private void btnSaveTabOrder_Click(object sender, EventArgs e)
        {
            // Save order of tabs
            tabOrder.Clear();

            foreach (TabItem item in radTabStrip1.Items)
                tabOrder.Add(item.Name);
        }
    }

I hope this helps.

- Robert

[Martin Vasilev]

Hi Robert,

Thank you for sharing your approach with us. I thing there is one more convenient solution -- using Queue<>. In that way you can very easily save and reproduce the TabItems and their order:

Queue<TabItem> itemsQueue = new Queue<TabItem>();

private void saveButton_Click(object sender, EventArgs e)
{
    this.itemsQueue.Clear();

    for (int i = 0; i < this.radTabStrip1.Items.Count; i++)
    {
        this.itemsQueue.Enqueue((TabItem)this.radTabStrip1.Items[i]);
    }

    this.radTabStrip1.Items.Clear();

}

private void restoreButton_Click(object sender, EventArgs e)
{
    while (this.itemsQueue.Count > 0)
    {
        this.radTabStrip1.Items.Add(this.itemsQueue.Dequeue());
    }
}

Greetings,
Martin Vasilev
the Telerik team

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[IT Development]

Hello,

Thanks for the reply's.
It worked!. I choice for the first approach because i wanted to save the order in a string.

Greetings

Tim