Flickering in ListView control (OwnerDraw, Virtual)

Question

This question might be considered a follow-up to Flickering in listview with ownerdraw and virtualmode.

I\'ve got a ListView control in Virtu

Answer 1

Like This Answer in Here, though not sure but,

I think that ListView.BeginUpdate() and ListView.EndUpdate() will solve the problem.

MSDN Thread about This

Maybe In This Way :

protected override void OnDrawItem(DrawListViewItemEventArgs eventArgs)
{
    ListView.BeginUpdate();
    //Do Works Here
    ListView.EndUpdate();
}

Update

Another Alternative may be using a new Thread in BackgroundWorker to Update the ListView... I implemented this along with BeginUpdate()/EndUpDate() in my application and found it relatively faster than only the BeginUpdate()/EndUpDate()..

Update

I found another working Solution at SO, a Helper class provided by Brian Gillespie :

public enum ListViewExtendedStyles
{
    /// 

    /// LVS_EX_GRIDLINES
    /// 
    GridLines = 0x00000001,
    /// 

    /// LVS_EX_SUBITEMIMAGES
    /// 
    SubItemImages = 0x00000002,
    /// 

    /// LVS_EX_CHECKBOXES
    /// 
    CheckBoxes = 0x00000004,
    /// 

    /// LVS_EX_TRACKSELECT
    /// 
    TrackSelect = 0x00000008,
    /// 

    /// LVS_EX_HEADERDRAGDROP
    /// 
    HeaderDragDrop = 0x00000010,
    /// 

    /// LVS_EX_FULLROWSELECT
    /// 
    FullRowSelect = 0x00000020,
    /// 

    /// LVS_EX_ONECLICKACTIVATE
    /// 
    OneClickActivate = 0x00000040,
    /// 

    /// LVS_EX_TWOCLICKACTIVATE
    /// 
    TwoClickActivate = 0x00000080,
    /// 

    /// LVS_EX_FLATSB
    /// 
    FlatsB = 0x00000100,
    /// 

    /// LVS_EX_REGIONAL
    /// 
    Regional = 0x00000200,
    /// 

    /// LVS_EX_INFOTIP
    /// 
    InfoTip = 0x00000400,
    /// 

    /// LVS_EX_UNDERLINEHOT
    /// 
    UnderlineHot = 0x00000800,
    /// 

    /// LVS_EX_UNDERLINECOLD
    /// 
    UnderlineCold = 0x00001000,
    /// 

    /// LVS_EX_MULTIWORKAREAS
    /// 
    MultilWorkAreas = 0x00002000,
    /// 

    /// LVS_EX_LABELTIP
    /// 
    LabelTip = 0x00004000,
    /// 

    /// LVS_EX_BORDERSELECT
    /// 
    BorderSelect = 0x00008000,
    /// 

    /// LVS_EX_DOUBLEBUFFER
    /// 
    DoubleBuffer = 0x00010000,
    /// 

    /// LVS_EX_HIDELABELS
    /// 
    HideLabels = 0x00020000,
    /// 

    /// LVS_EX_SINGLEROW
    /// 
    SingleRow = 0x00040000,
    /// 

    /// LVS_EX_SNAPTOGRID
    /// 
    SnapToGrid = 0x00080000,
    /// 

    /// LVS_EX_SIMPLESELECT
    /// 
    SimpleSelect = 0x00100000
}

public enum ListViewMessages
{
    First = 0x1000,
    SetExtendedStyle = (First + 54),
    GetExtendedStyle = (First + 55),
}

/// 

/// Contains helper methods to change extended styles on ListView, including enabling double buffering.
/// Based on Giovanni Montrone's article on 
/// 
public class ListViewHelper
{
    private ListViewHelper()
    {
    }

    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    private static extern int SendMessage(IntPtr handle, int messg, int wparam, int lparam);

    public static void SetExtendedStyle(Control control, ListViewExtendedStyles exStyle)
    {
        ListViewExtendedStyles styles;
        styles = (ListViewExtendedStyles)SendMessage(control.Handle, (int)ListViewMessages.GetExtendedStyle, 0, 0);
        styles |= exStyle;
        SendMessage(control.Handle, (int)ListViewMessages.SetExtendedStyle, 0, (int)styles);
    }

    public static void EnableDoubleBuffer(Control control)
    {
        ListViewExtendedStyles styles;
        // read current style
        styles = (ListViewExtendedStyles)SendMessage(control.Handle, (int)ListViewMessages.GetExtendedStyle, 0, 0);
        // enable double buffer and border select
        styles |= ListViewExtendedStyles.DoubleBuffer | ListViewExtendedStyles.BorderSelect;
        // write new style
        SendMessage(control.Handle, (int)ListViewMessages.SetExtendedStyle, 0, (int)styles);
    }
    public static void DisableDoubleBuffer(Control control)
    {
        ListViewExtendedStyles styles;
        // read current style
        styles = (ListViewExtendedStyles)SendMessage(control.Handle, (int)ListViewMessages.GetExtendedStyle, 0, 0);
        // disable double buffer and border select
        styles -= styles & ListViewExtendedStyles.DoubleBuffer;
        styles -= styles & ListViewExtendedStyles.BorderSelect;
        // write new style
        SendMessage(control.Handle, (int)ListViewMessages.SetExtendedStyle, 0, (int)styles);
    }
}