Hiding and Showing TabPages in tabControl

Someone merged the C# answer into this one so I have to post my answer here. I didn't love the other solutions so I made a helper class that will make it easier to hide / show your tabs while retaining the order of tabs.

/// <summary>
/// Memorizes the order of tabs upon creation to make hiding / showing tabs more
/// straightforward. Instead of interacting with the TabCollection, use this class
/// instead.
/// </summary>
public class TabPageHelper
{
    private List<TabPage> _allTabs;
    private TabControl.TabPageCollection _tabCollection;
    public Dictionary<string, int> TabOrder { get; private set; }

    public TabPageHelper( TabControl.TabPageCollection tabCollection )
    {
        _allTabs = new List<TabPage>();
        TabOrder = new Dictionary<string, int>();
        foreach ( TabPage tab in tabCollection )
        {
            _allTabs.Add( tab );
        }
        _tabCollection = tabCollection;
        foreach ( int index in Enumerable.Range( 0, tabCollection.Count ) )
        {
            var tab = tabCollection[index];
            TabOrder[tab.Name] = index;
        }
    }

    public void ShowTabPage( string tabText )
    {
        TabPage page = _allTabs
            .Where( t => string.Equals( t.Text, tabText, StringComparison.CurrentCultureIgnoreCase ) )
            .First();
        int tabPageOrder = TabOrder[page.Name];
        if ( !_tabCollection.Contains( page ) )
        {
            _tabCollection.Insert( tabPageOrder, page );
        }
    }

    public void HideTabPage( string tabText )
    {
        TabPage page = _allTabs
            .Where( t => string.Equals( t.Text, tabText, StringComparison.CurrentCultureIgnoreCase ) )
            .First();
        int tabPageOrder = TabOrder[page.Name];
        if ( _tabCollection.Contains( page ) )
        {
            _tabCollection.Remove( page );
        }
    }
}

To use the class, instantiate it in your form load method after initializing your components by passing in the tab control's TabPages property.

public Form1()
{
    InitializeComponent();
    _tabHelper = new TabPageHelper( tabControl1.TabPages );
}

All of your tab pages should exist on application load (ie: in the Design view) because the class will remember the order of the tab pages when hiding / showing. You can hide or show them selectively throughout your application like this:

_tabHelper.HideTabPage("Settings");
_tabHelper.ShowTabPage("Schedule");

If you can afford to use the Tag element of the TabPage, you can use this extension methods

    public static void HideByRemoval(this TabPage tp)
    {
        TabControl tc = tp.Parent as TabControl;

        if (tc != null && tc.TabPages.Contains(tp))
        {
            // Store TabControl and Index
            tp.Tag = new Tuple<TabControl, Int32>(tc, tc.TabPages.IndexOf(tp));
            tc.TabPages.Remove(tp);
        }
    }

    public static void ShowByInsertion(this TabPage tp)
    {
        Tuple<TabControl, Int32> tagObj = tp.Tag as Tuple<TabControl, Int32>;

        if (tagObj?.Item1 != null)
        {
            // Restore TabControl and Index
            tagObj.Item1.TabPages.Insert(tagObj.Item2, tp);
        }
    }

Adding and removing tab may be a bit less effective May be this will help

To hide/show tab page => let tabPage1 of tabControl1

tapPage1.Parent = null;            //to hide tabPage1 from tabControl1
tabPage1.Parent = tabControl1;     //to show the tabPage1 in tabControl1

There are at least two ways to code a solution in software... Thanks for posting answers. Just wanted to update this with another version. A TabPage array is used to shadow the Tab Control. During the Load event, the TabPages in the TabControl are copied to the shadow array. Later, this shadow array is used as the source to copy the TabPages into the TabControl...and in the desired presentation order.

    Private tabControl1tabPageShadow() As TabPage = Nothing

    Private Sub Form2_DailyReportPackageViewer_Load(sender As Object, e As EventArgs) Handles Me.Load
        LoadTabPageShadow()
    End Sub


    Private Sub LoadTabPageShadow()
        ReDim tabControl1tabPageShadow(TabControl1.TabPages.Count - 1)
        For Each tabPage In TabControl1.TabPages
            tabControl1tabPageShadow(tabPage.TabIndex) = tabPage
        Next
    End Sub

    Private Sub ViewAllReports(sender As Object, e As EventArgs) Handles Button8.Click
        TabControl1.TabPages.Clear()
        For Each tabPage In tabControl1tabPageShadow
            TabControl1.TabPages.Add(tabPage)
        Next
    End Sub


    Private Sub ViewOperationsReports(sender As Object, e As EventArgs) Handles Button10.Click
        TabControl1.TabPages.Clear()

        For tabCount As Integer = 0 To 9
            For Each tabPage In tabControl1tabPageShadow
                Select Case tabPage.Text
                    Case "Overview"
                        If tabCount = 0 Then TabControl1.TabPages.Add(tabPage)
                    Case "Production Days Under 110%"
                        If tabCount = 1 Then TabControl1.TabPages.Add(tabPage)
                    Case "Screening Status"
                        If tabCount = 2 Then TabControl1.TabPages.Add(tabPage)
                    Case "Rework Status"
                        If tabCount = 3 Then TabControl1.TabPages.Add(tabPage)
                    Case "Secondary by Machine"
                        If tabCount = 4 Then TabControl1.TabPages.Add(tabPage)
                    Case "Secondary Set Ups"
                        If tabCount = 5 Then TabControl1.TabPages.Add(tabPage)
                    Case "Secondary Run Times"
                        If tabCount = 6 Then TabControl1.TabPages.Add(tabPage)
                    Case "Primary Set Ups"
                        If tabCount = 7 Then TabControl1.TabPages.Add(tabPage)
                    Case "Variance"
                        If tabCount = 8 Then TabControl1.TabPages.Add(tabPage)
                    Case "Schedule Changes"
                        If tabCount = 9 Then TabControl1.TabPages.Add(tabPage)
                End Select
            Next
        Next

First copy the tab into a variable then use insert to bring it back.

TabPage tpresult = tabControl1.TabPages[0];
tabControl1.TabPages.RemoveAt(0);
tabControl1.TabPages.Insert(0, tpresult);