/// <summary>
/// Set the collection of objects that this control will show.
/// </summary>
/// <param name="collection"></param>
/// <remark>This method can safely be called from background threads.</remark>
override public void SetObjects(IEnumerable collection)
{
if (this.InvokeRequired)
{
this.Invoke((MethodInvoker) delegate { this.SetObjects(collection); });
return;
}
if (this.DataSource == null)
{
return;
}
this.BeginUpdate();
try {
// Give the world a chance to cancel or change the assigned collection
ItemsChangingEventArgs args = new ItemsChangingEventArgs(null, collection);
this.OnItemsChanging(args);
if (args.Canceled)
{
return;
}
this.DataSource.SetObjects(args.NewObjects);
this.UpdateVirtualListSize();
this.Sort();
}
finally {
this.EndUpdate();
}
}
protected virtual void OnItemsChanging(ItemsChangingEventArgs e)
{
if (this.ItemsChanging != null)
{
this.ItemsChanging(this, e);
}
}
/// <summary>
/// Set the collection of objects that this control will show.
/// </summary>
/// <param name="collection"></param>
/// <param name="preserveState">Should the state of the list be preserved as far as is possible.</param>
public override void SetObjects(IEnumerable <object> collection, bool preserveState)
{
if (InvokeRequired)
{
Invoke((MethodInvoker) delegate { SetObjects(collection, preserveState); });
return;
}
if (VirtualListDataSource == null)
{
return;
}
// Give the world a chance to cancel or change the assigned collection
ItemsChangingEventArgs args = new ItemsChangingEventArgs(null, collection);
OnItemsChanging(args);
if (args.Canceled)
{
return;
}
BeginUpdate();
try
{
VirtualListDataSource.SetObjects(args.NewObjects);
BuildList();
}
finally
{
EndUpdate();
}
}
public override void SetObjects(IEnumerable collection)
{
MethodInvoker method = null;
if (base.InvokeRequired)
{
if (method == null)
{
method = delegate {
this.SetObjects(collection);
};
}
base.Invoke(method);
}
else if (this.DataSource != null)
{
base.BeginUpdate();
try
{
ItemsChangingEventArgs e = new ItemsChangingEventArgs(null, collection);
this.OnItemsChanging(e);
if (!e.Canceled)
{
this.DataSource.SetObjects(e.NewObjects);
this.UpdateVirtualListSize();
base.Sort();
}
}
finally
{
base.EndUpdate();
}
}
}
/// <summary>
/// Set the collection of objects that will be shown in this list view.
/// </summary>
/// <remark>This method can safely be called from background threads.</remark>
/// <remarks>The list is updated immediately</remarks>
/// <param name="collection">The objects to be displayed</param>
/// <param name="preserveState">Should the state of the list be preserved as far as is possible.</param>
public virtual void SetObjects(IEnumerable collection, bool preserveState)
{
if (this.InvokeRequired) {
this.Invoke((MethodInvoker)delegate { this.SetObjects(collection, preserveState); });
return;
}
// Give the world a chance to cancel or change the assigned collection
ItemsChangingEventArgs args = new ItemsChangingEventArgs(this.objects, collection);
this.OnItemsChanging(args);
if (args.Canceled)
return;
collection = args.NewObjects;
// If we own the current list and they change to another list, we don't own it anymore
if (this.isOwnerOfObjects && this.objects != collection)
this.isOwnerOfObjects = false;
this.objects = collection;
this.BuildList(preserveState);
// Tell the world that the list has changed
this.OnItemsChanged(new ItemsChangedEventArgs());
}
/// <summary>
///
/// </summary>
/// <param name="e"></param>
protected virtual void OnItemsChanging(ItemsChangingEventArgs e) {
if (this.ItemsChanging != null)
this.ItemsChanging(this, e);
}
/// <summary>
/// Set the collection of objects that this control will show.
/// </summary>
/// <param name="collection"></param>
/// <param name="preserveState">Should the state of the list be preserved as far as is possible.</param>
public override void SetObjects(IEnumerable collection, bool preserveState) {
if (this.InvokeRequired) {
this.Invoke((MethodInvoker)delegate { this.SetObjects(collection, preserveState); });
return;
}
if (this.VirtualListDataSource == null)
return;
// Give the world a chance to cancel or change the assigned collection
ItemsChangingEventArgs args = new ItemsChangingEventArgs(null, collection);
this.OnItemsChanging(args);
if (args.Canceled)
return;
this.BeginUpdate();
try {
this.VirtualListDataSource.SetObjects(args.NewObjects);
this.BuildList();
this.UpdateNotificationSubscriptions(args.NewObjects);
}
finally {
this.EndUpdate();
}
}
/// <summary>
/// Set the collection of objects that this control will show.
/// </summary>
/// <param name="collection"></param>
/// <remark>This method can safely be called from background threads.</remark>
public override void SetObjects(IEnumerable collection)
{
if (this.InvokeRequired) {
this.Invoke((MethodInvoker)delegate { this.SetObjects(collection); });
return;
}
if (this.DataSource == null)
return;
this.BeginUpdate();
try {
// Give the world a chance to cancel or change the assigned collection
ItemsChangingEventArgs args = new ItemsChangingEventArgs(null, collection);
this.OnItemsChanging(args);
if (args.Canceled)
return;
this.DataSource.SetObjects(args.NewObjects);
this.UpdateVirtualListSize();
this.Sort();
}
finally {
this.EndUpdate();
}
}
