Question

I have a class that generates a listview dynamically and placed it in a tab control. When the user resizes the form, I want to capture that event and resize the listview. I can set the dock property but directly on top of the grid there is a panel with a combo box ( allows user to sort of filter the data). And when I set the docking the grid docks to the top of the tab and doesn’t realize there is a combo there. Maybe i am doing something wrong.

Here is a sample code:

public class KI_Tab_Items_ListviewControl : KI_Tab_Items, IDisposable
{
    private ListView m_Listview = new ListView();
    private ComboBox m_ComboBox = new ComboBox();

    public ListView ListViewControl { get { return m_Listview; } set { m_Listview = value; } }
    public ComboBox ComboBoxControl { get { return m_ComboBox; } set { m_ComboBox = value; } }

    public override void ClearItems()
    {
        ListViewControl.Items.Clear();
    }
    public override void PopulateControls()
    {
        base.PopulateControls();
    }
    public virtual void AddColumnHeaders()
    {
        ListViewControl.Columns.Clear();
    }
    public KI_Tab_Items_ListviewControl(TabControl m_TabControl, int lIndex, bool DisplayComboBox = true)
    {
        if (m_TabControl.TabPages[lIndex].Controls.Count == 0)
        {
            int ListviewTop = 0;
            m_TabControl.TabPages[lIndex].Controls.Clear();
            if (DisplayComboBox)
            {
                m_TabControl.TabPages[lIndex].Controls.Add(ComboBoxControl);
                ComboBoxControl.Dock = DockStyle.Top;
                ComboBoxControl.Visible = true;
                ComboBoxControl.Left = 0;
                ComboBoxControl.Top = 0;
                ListviewTop = ComboBoxControl.Top + ComboBoxControl.Height;
            }

            m_TabControl.TabPages[lIndex].Controls.Add(ListViewControl);

            ListViewControl.Anchor = AnchorStyles.Top;
            ListViewControl.Dock = DockStyle.Bottom;
            ListViewControl.Visible = true;
            ListViewControl.Top = ListviewTop;
            ListViewControl.Height = m_TabControl.TabPages[lIndex].Height - ListviewTop;
        }
    }
    void System.IDisposable.Dispose()
    {
        Tab_Control.Controls.Clear();
        m_Listview = null;
        m_ComboBox = null;
    }
}

Answer 1

Add ListView FIRST. Set ListViewControl.Dock = DockStyle.Fill.
Add ComboBox LAST. Sett ComboBoxControl.Dock = DockStyle.Top.

public void KI_Tab_Items_ListviewControl( TabControl m_TabControl, int lIndex, bool DisplayComboBox = true )
{
    if ( m_TabControl.TabPages[ lIndex ].Controls.Count == 0 )
    {
        int ListviewTop = 0;

        m_TabControl.TabPages[ lIndex ].Controls.Clear();

        m_TabControl.TabPages[ lIndex ].Controls.Add( ListViewControl );

        // Add ListView FIRST.
        // NOTE: set ListViewControl.Dock = DockStyle.Fill;
        //

        ListViewControl.Anchor = AnchorStyles.Top;
        ListViewControl.Dock = DockStyle.Fill;
        ListViewControl.Visible = true;
        ListViewControl.Top = ListviewTop;
        ListViewControl.Height = m_TabControl.TabPages[ lIndex ].Height - ListviewTop;

        // Add ComboBox last.
        // NOTE: set ComboBoxControl.Dock = DockStyle.Top;
        //

        if ( DisplayComboBox )
        {
            m_TabControl.TabPages[ lIndex ].Controls.Add( ComboBoxControl );
            ComboBoxControl.Dock = DockStyle.Top;
            ComboBoxControl.Visible = true;
            ComboBoxControl.Left = 0;
            ComboBoxControl.Top = 0;
            ListviewTop = ComboBoxControl.Top + ComboBoxControl.Height;
        }
    }
}