//
// TODO:
// - Feedback for item activation, change in cursor types as mouse moves.
-// - HideSelection
// - LabelEdit
// - Drag and drop
// event handlers
base.KeyDown += new KeyEventHandler(ListView_KeyDown);
SizeChanged += new EventHandler (ListView_SizeChanged);
+ GotFocus += new EventHandler (FocusChanged);
+ LostFocus += new EventHandler (FocusChanged);
+ MouseWheel += new MouseEventHandler(ListView_MouseWheel);
this.SetStyle (ControlStyles.UserPaint | ControlStyles.StandardClick, false);
}
get { return check_boxes; }
set {
if (check_boxes != value) {
+#if NET_2_0
+ if (value && View == View.Tile)
+ throw new NotSupportedException ("CheckBoxes are not"
+ + " supported in Tile view. Choose a different"
+ + " view or set CheckBoxes to false.");
+#endif
+
check_boxes = value;
this.Redraw (true);
}
[Browsable (false)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public IComparer ListViewItemSorter {
- get { return item_sorter; }
- set { item_sorter = value; }
+ get {
+ if (View != View.SmallIcon && View != View.LargeIcon && item_sorter is ItemComparer)
+ return null;
+ return item_sorter;
+ }
+ set {
+ if (item_sorter != value) {
+ item_sorter = value;
+ Sort ();
+ }
+ }
}
[DefaultValue (true)]
public SortOrder Sorting {
get { return sort_order; }
set {
- if (value != SortOrder.Ascending && value != SortOrder.Descending &&
- value != SortOrder.None) {
- throw new InvalidEnumArgumentException (string.Format
- ("Enum argument value '{0}' is not valid for Sorting", value));
+ if (!Enum.IsDefined (typeof (SortOrder), value)) {
+ throw new InvalidEnumArgumentException ("value", (int) value,
+ typeof (SortOrder));
}
- if (sort_order != value) {
- sort_order = value;
+ if (sort_order == value)
+ return;
+
+ sort_order = value;
+
+ if (value == SortOrder.None) {
+ if (item_sorter != null) {
+ // ListViewItemSorter should never be reset for SmallIcon
+ // and LargeIcon view
+ if (View != View.SmallIcon && View != View.LargeIcon)
+#if NET_2_0
+ item_sorter = null;
+#else
+ // in .NET 1.1, only internal IComparer would be
+ // set to null
+ if (item_sorter is ItemComparer)
+ item_sorter = null;
+#endif
+ }
this.Redraw (false);
+ } else {
+ if (item_sorter == null)
+ item_sorter = new ItemComparer (value);
+ if (item_sorter is ItemComparer) {
+#if NET_2_0
+ item_sorter = new ItemComparer (value);
+#else
+ // in .NET 1.1, the sort order is not updated for
+ // SmallIcon and LargeIcon views if no custom IComparer
+ // is set
+ if (View != View.SmallIcon && View != View.LargeIcon)
+ item_sorter = new ItemComparer (value);
+#endif
+ }
+ Sort ();
}
}
}
public View View {
get { return view; }
set {
- if (value != View.Details && value != View.LargeIcon &&
- value != View.List && value != View.SmallIcon ) {
- throw new InvalidEnumArgumentException (string.Format
- ("Enum argument value '{0}' is not valid for View", value));
- }
-
+ if (!Enum.IsDefined (typeof (View), value))
+ throw new InvalidEnumArgumentException ("value", (int) value,
+ typeof (View));
+
if (view != value) {
+#if NET_2_0
+ if (CheckBoxes && value == View.Tile)
+ throw new NotSupportedException ("CheckBoxes are not"
+ + " supported in Tile view. Choose a different"
+ + " view or set CheckBoxes to false.");
+#endif
+
h_scroll.Value = v_scroll.Value = 0;
view = value;
Redraw (true);
if (!this.scrollable || this.items.Count <= 0) {
h_scroll.Visible = false;
v_scroll.Visible = false;
+ item_control.Location = new Point (0, header_control.Height);
+ item_control.Height = ClientRectangle.Width - header_control.Height;
+ item_control.Width = ClientRectangle.Width;
+ header_control.Width = ClientRectangle.Width;
return;
}
+ // Don't calculate if the view is not displayable
+ if (client_area.Height < 0 || client_area.Width < 0)
+ return;
+
// making a scroll bar visible might make
// other scroll bar visible
if (layout_wd > client_area.Right) {
{
header_control.Visible = false;
header_control.Size = Size.Empty;
+ item_control.Visible = true;
item_control.Location = Point.Empty;
if (items.Count == 0)
void LayoutHeader ()
{
- if (columns.Count == 0 || header_style == ColumnHeaderStyle.None) {
- header_control.Visible = false;
- header_control.Size = Size.Empty;
- return;
- }
-
int x = 0;
for (int i = 0; i < Columns.Count; i++) {
ColumnHeader col = GetReorderedColumn (i);
if (x < ClientRectangle.Width)
x = ClientRectangle.Width;
- header_control.Width = x;
- header_control.Height = columns [0].Ht;
- header_control.is_visible = true;
+ if (header_style == ColumnHeaderStyle.None) {
+ header_control.Visible = false;
+ header_control.Size = Size.Empty;
+ } else {
+ header_control.Width = x;
+ header_control.Height = columns [0].Ht;
+ header_control.Visible = true;
+ }
}
void LayoutDetails ()
{
+ if (columns.Count == 0) {
+ header_control.Visible = false;
+ item_control.Visible = false;
+ return;
+ }
+
LayoutHeader ();
+ item_control.Visible = true;
item_control.Location = new Point (0, header_control.Height);
int y = 0;
if (!CanMultiselect && SelectedItems.Count > 0) {
SelectedItems.Clear ();
- SelectedIndices.list.Clear ();
}
- if (!SelectedItems.Contains (item)) {
+ if (!SelectedItems.list.Contains (item)) {
SelectedItems.list.Add (item);
- SelectedIndices.list.Add (item.Index);
}
} else {
SelectedItems.list.Remove (item);
- SelectedIndices.list.Remove (item.Index);
}
}
return item_matrix [row - 1, col].Index;
case Keys.Down:
- if (row == (rows - 1))
+ if (row == (rows - 1) || row == Items.Count - 1)
return -1;
while (item_matrix [row + 1, col] == null)
col--;
ListViewItem selection_start;
- private void SelectItems (ArrayList sel_items)
+ private bool SelectItems (ArrayList sel_items)
{
+ bool changed = false;
multiselecting = true;
ArrayList curr_items = (ArrayList) SelectedItems.list.Clone ();
foreach (ListViewItem item in curr_items)
- if (!sel_items.Contains (item))
+ if (!sel_items.Contains (item)) {
item.Selected = false;
+ changed = true;
+ }
foreach (ListViewItem item in sel_items)
- item.Selected = true;
+ if (!item.Selected) {
+ item.Selected = true;
+ changed = true;
+ }
multiselecting = false;
+ return changed;
}
private void UpdateMultiSelection (int index)
curr.col >= left && curr.col <= right)
list.Add (curr);
}
- SelectItems (list);
+ if (SelectItems (list))
+ OnSelectedIndexChanged (EventArgs.Empty);
} else if (!ctrl_pressed) {
SelectedItems.Clear ();
- SelectedIndices.list.Clear ();
item.Selected = true;
selection_start = item;
+ OnSelectedIndexChanged (EventArgs.Empty);
}
}
private void ListView_KeyDown (object sender, KeyEventArgs ke)
{
- if (ke.Handled || Items.Count == 0)
+ if (ke.Handled || Items.Count == 0 || !item_control.Visible)
return;
int index = -1;
ke.Handled = true;
+ if (FocusedItem == null)
+ SetFocusedItem (Items [0]);
+
switch (ke.KeyCode) {
case Keys.End:
if (MultiSelect)
UpdateMultiSelection (index);
- else
+ else if (!items [index].Selected) {
items [index].Selected = true;
+ OnSelectedIndexChanged (EventArgs.Empty);
+ }
SetFocusedItem (items [index]);
EnsureVisible (index);
ListViewItem clicked_item;
ListViewItem last_clicked_item;
bool hover_processed = false;
+ bool checking = false;
public ItemControl (ListView owner)
{
this.owner = owner;
DoubleClick += new EventHandler(ItemsDoubleClick);
- KeyDown += new KeyEventHandler (ItemsKeyDown);
- KeyUp += new KeyEventHandler (ItemsKeyUp);
MouseDown += new MouseEventHandler(ItemsMouseDown);
MouseMove += new MouseEventHandler(ItemsMouseMove);
MouseHover += new EventHandler(ItemsMouseHover);
MouseUp += new MouseEventHandler(ItemsMouseUp);
- MouseWheel += new MouseEventHandler(ItemsMouseWheel);
- GotFocus += new EventHandler (FocusChanged);
- LostFocus += new EventHandler (FocusChanged);
}
void ItemsDoubleClick (object sender, EventArgs e)
owner.ItemActivate (this, e);
}
- void ItemsKeyDown (object sender, KeyEventArgs args)
- {
- owner.OnKeyDown (args);
- }
-
- void ItemsKeyUp (object sender, KeyEventArgs args)
- {
- owner.OnKeyUp (args);
- }
-
enum BoxSelect {
None,
Normal,
return true;
}
+ private void ToggleCheckState (ListViewItem item)
+ {
+ CheckState curr_state = item.Checked ? CheckState.Checked : CheckState.Unchecked;
+ item.Checked = !item.Checked;
+ CheckState new_state = item.Checked ? CheckState.Checked : CheckState.Unchecked;
+
+ ItemCheckEventArgs ice = new ItemCheckEventArgs (item.Index, curr_state, new_state);
+ owner.OnItemCheck (ice);
+ }
+
private void ItemsMouseDown (object sender, MouseEventArgs me)
{
if (owner.items.Count == 0)
Point pt = new Point (me.X, me.Y);
foreach (ListViewItem item in owner.items) {
- if (item.CheckRectReal.Contains (pt)) {
- CheckState curr_state = item.Checked ? CheckState.Checked : CheckState.Unchecked;
- item.Checked = !item.Checked;
-
- CheckState new_state = item.Checked ? CheckState.Checked : CheckState.Unchecked;
-
- // Raise the ItemCheck event
- ItemCheckEventArgs ice = new ItemCheckEventArgs (item.Index, curr_state, new_state);
- owner.OnItemCheck (ice);
- break;
+ if (me.Clicks == 1 && item.CheckRectReal.Contains (pt)) {
+ checking = true;
+ if (me.Clicks > 1)
+ return;
+ ToggleCheckState (item);
+ return;
}
if (owner.View == View.Details && !owner.FullRowSelect) {
// Raise double click if the item was clicked. On MS the
// double click is only raised if you double click an item
- if (me.Clicks > 1 && clicked_item != null)
+ if (me.Clicks > 1) {
owner.OnDoubleClick (EventArgs.Empty);
- else if (me.Clicks == 1 && clicked_item != null)
+ if (owner.CheckBoxes)
+ ToggleCheckState (clicked_item);
+ } else if (me.Clicks == 1)
owner.OnClick (EventArgs.Empty);
} else {
if (owner.MultiSelect) {
prev_selection = (ArrayList) owner.SelectedItems.list.Clone ();
} else if (owner.selected_indices.Count > 0) {
owner.SelectedItems.Clear ();
- owner.SelectedIndices.list.Clear ();
owner.OnSelectedIndexChanged (EventArgs.Empty);
}
}
break;
}
}
- } else if (owner.SelectedItems.Count > 0 && BoxSelectRectangle.Size.IsEmpty) {
+ } else if (!checking && owner.SelectedItems.Count > 0 && BoxSelectRectangle.Size.IsEmpty) {
// Need this to clean up background clicks
owner.SelectedItems.Clear ();
- owner.SelectedIndices.list.Clear ();
owner.OnSelectedIndexChanged (EventArgs.Empty);
}
BoxSelectRectangle = Rectangle.Empty;
prev_selection = null;
box_select_mode = BoxSelect.None;
+ checking = false;
}
- private void ItemsMouseWheel (object sender, MouseEventArgs me)
- {
- if (owner.Items.Count == 0)
- return;
-
- int lines = me.Delta / 120;
-
- if (lines == 0)
- return;
-
- switch (owner.View) {
- case View.Details:
- case View.SmallIcon:
- owner.Scroll (owner.v_scroll, -owner.Items [0].Bounds.Height * SystemInformation.MouseWheelScrollLines * lines);
- break;
- case View.LargeIcon:
- owner.Scroll (owner.v_scroll, -(owner.Items [0].Bounds.Height + ThemeEngine.Current.ListViewVerticalSpacing) * lines);
- break;
- case View.List:
- owner.Scroll (owner.h_scroll, -owner.Items [0].Bounds.Width * lines);
- break;
- }
- }
-
- void FocusChanged (object o, EventArgs args)
+ internal override void OnPaintInternal (PaintEventArgs pe)
{
- if (owner.Items.Count == 0)
- return;
-
- if (owner.FocusedItem == null)
- owner.SetFocusedItem (owner.Items [0]);
-
- Invalidate (owner.FocusedItem.Bounds);
+ ThemeEngine.Current.DrawListViewItems (pe.Graphics, pe.ClipRectangle, owner);
}
- internal override void OnPaintInternal (PaintEventArgs pe)
+ internal override void OnGotFocusInternal (EventArgs e)
{
- ThemeEngine.Current.DrawListViewItems (pe.Graphics, pe.ClipRectangle, owner);
+ owner.Focus ();
}
}
CalculateScrollBars ();
}
+ void FocusChanged (object o, EventArgs args)
+ {
+ if (Items.Count == 0)
+ return;
+
+ if (FocusedItem == null)
+ SetFocusedItem (Items [0]);
+
+ item_control.Invalidate (FocusedItem.Bounds);
+ }
+
+ private void ListView_MouseWheel (object sender, MouseEventArgs me)
+ {
+ if (Items.Count == 0)
+ return;
+
+ int lines = me.Delta / 120;
+
+ if (lines == 0)
+ return;
+
+ switch (View) {
+ case View.Details:
+ case View.SmallIcon:
+ Scroll (v_scroll, -Items [0].Bounds.Height * SystemInformation.MouseWheelScrollLines * lines);
+ break;
+ case View.LargeIcon:
+ Scroll (v_scroll, -(Items [0].Bounds.Height + ThemeEngine.Current.ListViewVerticalSpacing) * lines);
+ break;
+ case View.List:
+ Scroll (h_scroll, -Items [0].Bounds.Width * lines);
+ break;
+ }
+ }
+
private void ListView_SizeChanged (object sender, EventArgs e)
{
CalculateListView (alignment);
protected override void OnHandleCreated (EventArgs e)
{
base.OnHandleCreated (e);
+ Sort ();
}
protected override void OnHandleDestroyed (EventArgs e)
public Rectangle GetItemRect (int index, ItemBoundsPortion portion)
{
if (index < 0 || index >= items.Count)
- throw new IndexOutOfRangeException ("Invalid Index");
+ throw new IndexOutOfRangeException ("index");
return items [index].GetBounds (portion);
}
public void Sort ()
{
- if (sort_order != SortOrder.None)
- items.list.Sort (item_sorter);
-
- if (sort_order == SortOrder.Descending)
- items.list.Reverse ();
-
- this.Redraw (true);
+ Sort (true);
+ }
+
+ // we need this overload to reuse the logic for sorting, while allowing
+ // redrawing to be done by caller or have it done by this method when
+ // sorting is really performed
+ //
+ // ListViewItemCollection's Add and AddRange methods call this overload
+ // with redraw set to false, as they take care of redrawing themselves
+ // (they even want to redraw the listview if no sort is performed, as
+ // an item was added), while ListView.Sort () only wants to redraw if
+ // sorting was actually performed
+ private void Sort (bool redraw)
+ {
+ if (!IsHandleCreated || item_sorter == null) {
+ return;
+ }
+
+ items.list.Sort (item_sorter);
+ if (redraw)
+ this.Redraw (true);
}
public override string ToString ()
zone.X = zone.Right - 5;
zone.Width = 10;
if (zone.Contains (pt)) {
+ if (i < owner.Columns.Count - 1 && owner.Columns [i + 1].Width == 0)
+ i++;
resize_column = owner.Columns [i];
break;
}
target_x = owner.GetReorderedColumn (drag_to_index).Rect.X - owner.h_marker;
theme.DrawListViewHeaderDragDetails (pe.Graphics, owner, drag_column, target_x);
}
+
+ protected override void WndProc (ref Message m)
+ {
+ switch ((Msg)m.Msg) {
+ case Msg.WM_SETFOCUS:
+ owner.Focus ();
+ break;
+ default:
+ base.WndProc (ref m);
+ break;
+ }
+ }
+ }
+
+ private class ItemComparer : IComparer {
+ readonly SortOrder sort_order;
+
+ public ItemComparer (SortOrder sortOrder)
+ {
+ sort_order = sortOrder;
+ }
+
+ public int Compare (object x, object y)
+ {
+ ListViewItem item_x = x as ListViewItem;
+ ListViewItem item_y = y as ListViewItem;
+ if (sort_order == SortOrder.Ascending)
+ return String.Compare (item_x.Text, item_y.Text);
+ else
+ return String.Compare (item_y.Text, item_x.Text);
+ }
}
public class CheckedIndexCollection : IList, ICollection, IEnumerable
{
- internal ArrayList list;
- private ListView owner;
+ private readonly ListView owner;
#region Public Constructor
public CheckedIndexCollection (ListView owner)
{
- list = new ArrayList ();
this.owner = owner;
}
#endregion // Public Constructor
#region Public Properties
[Browsable (false)]
public int Count {
- get { return list.Count; }
+ get { return owner.CheckedItems.Count; }
}
public bool IsReadOnly {
public int this [int index] {
get {
- if (index < 0 || index >= list.Count)
- throw new ArgumentOutOfRangeException ("Index out of range.");
- return (int) list [index];
+ int [] indices = GetIndices ();
+ if (index < 0 || index >= indices.Length)
+ throw new ArgumentOutOfRangeException ("index");
+ return indices [index];
}
}
#region Public Methods
public bool Contains (int checkedIndex)
{
- return list.Contains (checkedIndex);
+ int [] indices = GetIndices ();
+ for (int i = 0; i < indices.Length; i++) {
+ if (indices [i] == checkedIndex)
+ return true;
+ }
+ return false;
}
public IEnumerator GetEnumerator ()
{
- return list.GetEnumerator ();
+ int [] indices = GetIndices ();
+ return indices.GetEnumerator ();
}
void ICollection.CopyTo (Array dest, int index)
{
- list.CopyTo (dest, index);
+ int [] indices = GetIndices ();
+ Array.Copy (indices, 0, dest, index, indices.Length);
}
int IList.Add (object value)
bool IList.Contains (object checkedIndex)
{
- return list.Contains (checkedIndex);
+ if (!(checkedIndex is int))
+ return false;
+ return Contains ((int) checkedIndex);
}
int IList.IndexOf (object checkedIndex)
{
- return list.IndexOf (checkedIndex);
+ if (!(checkedIndex is int))
+ return -1;
+ return IndexOf ((int) checkedIndex);
}
void IList.Insert (int index, object value)
public int IndexOf (int checkedIndex)
{
- return list.IndexOf (checkedIndex);
+ int [] indices = GetIndices ();
+ for (int i = 0; i < indices.Length; i++) {
+ if (indices [i] == checkedIndex)
+ return i;
+ }
+ return -1;
}
#endregion // Public Methods
+ private int [] GetIndices ()
+ {
+ int [] indices = new int [Count];
+ for (int i = 0; i < owner.CheckedItems.Count; i++) {
+ ListViewItem item = owner.CheckedItems [i];
+ indices [i] = item.Index;
+ }
+ return indices;
+ }
} // CheckedIndexCollection
public class CheckedListViewItemCollection : IList, ICollection, IEnumerable
{
- internal ArrayList list;
- private ListView owner;
+ internal readonly ArrayList list;
+ private readonly ListView owner;
#region Public Constructor
public CheckedListViewItemCollection (ListView owner)
#region Public Properties
[Browsable (false)]
public int Count {
- get { return list.Count; }
+ get {
+ if (!owner.CheckBoxes)
+ return 0;
+ return list.Count;
+ }
}
public bool IsReadOnly {
public ListViewItem this [int index] {
get {
- if (index < 0 || index >= list.Count)
- throw new ArgumentOutOfRangeException ("Index out of range.");
+ if (index < 0 || index >= Count)
+ throw new ArgumentOutOfRangeException ("index");
return (ListViewItem) list [index];
}
}
#region Public Methods
public bool Contains (ListViewItem item)
{
+ if (!owner.CheckBoxes)
+ return false;
return list.Contains (item);
}
public void CopyTo (Array dest, int index)
{
+ if (!owner.CheckBoxes)
+ return;
list.CopyTo (dest, index);
}
public IEnumerator GetEnumerator ()
{
+ if (!owner.CheckBoxes)
+ return (new ListViewItem [0]).GetEnumerator ();
return list.GetEnumerator ();
}
bool IList.Contains (object item)
{
- return list.Contains (item);
+ if (!(item is ListViewItem))
+ return false;
+ return Contains ((ListViewItem) item);
}
int IList.IndexOf (object item)
{
- return list.IndexOf (item);
+ if (!(item is ListViewItem))
+ return -1;
+ return IndexOf ((ListViewItem) item);
}
void IList.Insert (int index, object value)
public int IndexOf (ListViewItem item)
{
+ if (!owner.CheckBoxes)
+ return -1;
return list.IndexOf (item);
}
#endregion // Public Methods
-
} // CheckedListViewItemCollection
public class ColumnHeaderCollection : IList, ICollection, IEnumerable
public virtual ColumnHeader this [int index] {
get {
if (index < 0 || index >= list.Count)
- throw new ArgumentOutOfRangeException ("Index out of range.");
+ throw new ArgumentOutOfRangeException ("index");
return (ColumnHeader) list [index];
}
}
// LAMESPEC: MSDOCS say greater than or equal to the value of the Count property
// but it's really only greater.
if (index < 0 || index > list.Count)
- throw new ArgumentOutOfRangeException ("Index out of range.");
+ throw new ArgumentOutOfRangeException ("index");
value.owner = this.owner;
list.Insert (index, value);
public virtual void RemoveAt (int index)
{
if (index < 0 || index >= list.Count)
- throw new ArgumentOutOfRangeException ("Index out of range.");
+ throw new ArgumentOutOfRangeException ("index");
// TODO: Update Column internal index ?
list.RemoveAt (index);
public class ListViewItemCollection : IList, ICollection, IEnumerable
{
internal ArrayList list;
- private ListView owner;
+ private readonly ListView owner;
#region Public Constructor
public ListViewItemCollection (ListView owner)
public virtual ListViewItem this [int displayIndex] {
get {
if (displayIndex < 0 || displayIndex >= list.Count)
- throw new ArgumentOutOfRangeException ("Index out of range.");
+ throw new ArgumentOutOfRangeException ("displayIndex");
return (ListViewItem) list [displayIndex];
}
set {
if (displayIndex < 0 || displayIndex >= list.Count)
- throw new ArgumentOutOfRangeException ("Index out of range.");
+ throw new ArgumentOutOfRangeException ("displayIndex");
if (list.Contains (value))
throw new ArgumentException ("An item cannot be added more than once. To add an item again, you need to clone it.", "value");
value.Owner = owner;
list.Add (value);
- if (owner.Sorting != SortOrder.None)
- owner.Sort ();
-
+ owner.Sort (false);
owner.Redraw (true);
-
return value;
}
{
list.Clear ();
owner.SelectedItems.list.Clear ();
- owner.SelectedIndices.list.Clear ();
owner.CheckedItems.list.Clear ();
- owner.CheckedIndices.list.Clear ();
foreach (ListViewItem item in values) {
item.Owner = owner;
list.Add (item);
}
- if (owner.Sorting != SortOrder.None)
- owner.Sort ();
-
+ owner.Sort (false);
owner.Redraw (true);
}
owner.h_scroll.Value = owner.v_scroll.Value = 0;
list.Clear ();
owner.SelectedItems.list.Clear ();
- owner.SelectedIndices.list.Clear ();
owner.CheckedItems.list.Clear ();
- owner.CheckedIndices.list.Clear ();
owner.Redraw (true);
}
public ListViewItem Insert (int index, ListViewItem item)
{
- // LAMESPEC: MSDOCS say greater than or equal to the value of the Count property
- // but it's really only greater.
if (index < 0 || index > list.Count)
- throw new ArgumentOutOfRangeException ("Index out of range.");
+ throw new ArgumentOutOfRangeException ("index");
if (list.Contains (item))
throw new ArgumentException ("An item cannot be added more than once. To add an item again, you need to clone it.", "item");
return;
owner.SelectedItems.list.Remove (item);
- owner.SelectedIndices.list.Remove (item.Index);
owner.CheckedItems.list.Remove (item);
- owner.CheckedIndices.list.Remove (item.Index);
list.Remove (item);
owner.Redraw (true);
}
public virtual void RemoveAt (int index)
{
- if (index < 0 || index >= list.Count)
- throw new ArgumentOutOfRangeException ("Index out of range.");
-
+ ListViewItem item = this [index];
list.RemoveAt (index);
- owner.SelectedItems.list.RemoveAt (index);
- owner.SelectedIndices.list.RemoveAt (index);
- owner.CheckedItems.list.RemoveAt (index);
- owner.CheckedIndices.list.RemoveAt (index);
+ owner.SelectedItems.list.Remove (item);
+ owner.CheckedItems.list.Remove (item);
owner.Redraw (false);
}
#endregion // Public Methods
public class SelectedIndexCollection : IList, ICollection, IEnumerable
{
- internal ArrayList list;
- private ListView owner;
+ private readonly ListView owner;
#region Public Constructor
public SelectedIndexCollection (ListView owner)
{
- list = new ArrayList ();
this.owner = owner;
}
#endregion // Public Constructor
#region Public Properties
[Browsable (false)]
public int Count {
- get { return list.Count; }
+ get {
+ return owner.SelectedItems.Count;
+ }
}
public bool IsReadOnly {
public int this [int index] {
get {
- if (index < 0 || index >= list.Count)
- throw new ArgumentOutOfRangeException ("Index out of range.");
- return (int) list [index];
+ int [] indices = GetIndices ();
+ if (index < 0 || index >= indices.Length)
+ throw new ArgumentOutOfRangeException ("index");
+ return indices [index];
}
}
bool ICollection.IsSynchronized {
- get { return list.IsSynchronized; }
+ get { return false; }
}
object ICollection.SyncRoot {
#region Public Methods
public bool Contains (int selectedIndex)
{
- return list.Contains (selectedIndex);
+ int [] indices = GetIndices ();
+ for (int i = 0; i < indices.Length; i++) {
+ if (indices [i] == selectedIndex)
+ return true;
+ }
+ return false;
}
public void CopyTo (Array dest, int index)
{
- list.CopyTo (dest, index);
+ int [] indices = GetIndices ();
+ Array.Copy (indices, 0, dest, index, indices.Length);
}
public IEnumerator GetEnumerator ()
{
- return list.GetEnumerator ();
+ int [] indices = GetIndices ();
+ return indices.GetEnumerator ();
}
int IList.Add (object value)
bool IList.Contains (object selectedIndex)
{
- return list.Contains (selectedIndex);
+ if (!(selectedIndex is int))
+ return false;
+ return Contains ((int) selectedIndex);
}
int IList.IndexOf (object selectedIndex)
{
- return list.IndexOf (selectedIndex);
+ if (!(selectedIndex is int))
+ return -1;
+ return IndexOf ((int) selectedIndex);
}
void IList.Insert (int index, object value)
public int IndexOf (int selectedIndex)
{
- return list.IndexOf (selectedIndex);
+ int [] indices = GetIndices ();
+ for (int i = 0; i < indices.Length; i++) {
+ if (indices [i] == selectedIndex)
+ return i;
+ }
+ return -1;
}
#endregion // Public Methods
+ private int [] GetIndices ()
+ {
+ int [] indices = new int [Count];
+ for (int i = 0; i < owner.SelectedItems.Count; i++) {
+ ListViewItem item = owner.SelectedItems [i];
+ indices [i] = item.Index;
+ }
+ return indices;
+ }
+
} // SelectedIndexCollection
public class SelectedListViewItemCollection : IList, ICollection, IEnumerable
{
internal ArrayList list;
- private ListView owner;
+ private readonly ListView owner;
#region Public Constructor
public SelectedListViewItemCollection (ListView owner)
#region Public Properties
[Browsable (false)]
public int Count {
- get { return list.Count; }
+ get {
+ if (!owner.IsHandleCreated)
+ return 0;
+ return list.Count;
+ }
}
public bool IsReadOnly {
public ListViewItem this [int index] {
get {
- if (index < 0 || index >= list.Count)
- throw new ArgumentOutOfRangeException ("Index out of range.");
+ if (index < 0 || index >= Count)
+ throw new ArgumentOutOfRangeException ("index");
return (ListViewItem) list [index];
}
}
#region Public Methods
public void Clear ()
{
+ if (!owner.IsHandleCreated)
+ return;
+
ArrayList copy = (ArrayList) list.Clone ();
for (int i = 0; i < copy.Count; i++)
((ListViewItem) copy [i]).Selected = false;
public bool Contains (ListViewItem item)
{
+ if (!owner.IsHandleCreated)
+ return false;
return list.Contains (item);
}
public void CopyTo (Array dest, int index)
{
+ if (!owner.IsHandleCreated)
+ return;
list.CopyTo (dest, index);
}
public IEnumerator GetEnumerator ()
{
+ if (!owner.IsHandleCreated)
+ return (new ListViewItem [0]).GetEnumerator ();
return list.GetEnumerator ();
}
bool IList.Contains (object item)
{
- return list.Contains (item);
+ if (!(item is ListViewItem))
+ return false;
+ return Contains ((ListViewItem) item);
}
int IList.IndexOf (object item)
{
- return list.IndexOf (item);
+ if (!(item is ListViewItem))
+ return -1;
+ return IndexOf ((ListViewItem) item);
}
void IList.Insert (int index, object value)
public int IndexOf (ListViewItem item)
{
+ if (!owner.IsHandleCreated)
+ return -1;
return list.IndexOf (item);
}
#endregion // Public Methods
projects / mono.git / blobdiff