/// <summary>
/// Create a OLVListItem for given row index
/// </summary>
/// <param name="itemIndex">The index of the row that is needed</param>
/// <returns>An OLVListItem</returns>
public virtual OLVListItem MakeListViewItem(int itemIndex)
{
var o = GetModelObject(itemIndex);
if (o == null)
{
return(null);
}
var olvi = new OLVListItem(o);
FillInValues(olvi, olvi.RowObject);
if (UseAlternatingBackColors)
{
if (View == View.Details && itemIndex % 2 == 1)
{
olvi.BackColor = AlternateRowBackColorOrDefault;
}
else
{
olvi.BackColor = BackColor;
}
CorrectSubItemColors(olvi);
}
SetSubItemImages(itemIndex, olvi);
return(olvi);
}
/// <summary>
/// Create an event args
/// </summary>
/// <param name="column"></param>
/// <param name="control"></param>
/// <param name="r"></param>
/// <param name="item"></param>
/// <param name="subItemIndex"></param>
public CellEditEventArgs(OLVColumn column, Control control, Rectangle r, OLVListItem item, int subItemIndex)
{
this.Control = control;
this.column = column;
this.cellBounds = r;
this.listViewItem = item;
this.rowObject = item.RowObject;
this.subItemIndex = subItemIndex;
this.value = column.GetValue(item.RowObject);
}
/// <summary>
/// Handle the given mouse down event as a possible attempt to expand/collapse
/// a row. Return true if the event was handled.
/// </summary>
/// <param name="olvItem">The olv item.</param>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns></returns>
protected virtual bool HandlePossibleExpandClick(OLVListItem olvItem, int x, int y)
{
Branch br = TreeModel.GetBranch(olvItem.RowObject);
if (br == null || !br.CanExpand)
{
return(false);
}
// Calculate if they clicked on the expand/collapse icon. This icon
// appears before the icon of the item.
int smallImageWidth = 16;
if (SmallImageList != null)
{
smallImageWidth = SmallImageList.ImageSize.Width;
}
Rectangle r = GetItemRect(olvItem.Index, ItemBoundsPortion.Icon);
if (r.Width == 0)
{
// If GetItemRect() returns a 0-width rectangle, there are no images,
// but we still need to check if the click was before the text.
r.X += (br.Level - 1) * (smallImageWidth + 2);
r.Width = smallImageWidth;
}
else
{
r.X -= (smallImageWidth + 2);
}
// Take the checkboxes into account
if (CheckBoxes)
{
r.X -= (smallImageWidth + 2);
}
if (!r.Contains(x, y))
{
return(false);
}
PossibleFinishCellEditing();
ToggleExpansion(olvItem.RowObject);
return(true);
}
/// <summary>
/// Create a OLVListItem for given row index
/// </summary>
/// <param name="itemIndex">The index of the row that is needed</param>
/// <returns>An OLVListItem</returns>
/// <remarks>This differs from the base method by also setting up the IndentCount property.</remarks>
public override OLVListItem MakeListViewItem(int itemIndex)
{
OLVListItem olvItem = base.MakeListViewItem(itemIndex);
if (olvItem == null)
{
return(null);
}
Branch br = TreeModel.GetBranch(olvItem.RowObject);
if (br != null)
{
olvItem.IndentCount = br.Level;
}
return(olvItem);
}
/// <summary>
/// Refresh the given item in the list
/// </summary>
/// <param name="olvi">The item to refresh</param>
public override void RefreshItem(OLVListItem olvi)
{
ClearCachedInfo();
RedrawItems(olvi.Index, olvi.Index, false);
}
