/// <summary>
/// Inserts an dialog control at the specified index.
/// </summary>
/// <param name="index">The location to insert the control.</param>
/// <param name="control">The item to insert.</param>
/// <permission cref="System.InvalidOperationException">A control with
/// the same name already exists in this collection -or-
/// the control is being hosted by another dialog -or- the associated dialog is
/// showing and cannot be modified.</permission>
protected override void InsertItem(int index, T control)
{
// Check for duplicates, lack of host,
// and during-show adds.
if (Items.Contains(control))
{
throw new InvalidOperationException(
"Dialog cannot have more than one control with the same name.");
}
if (control.HostingDialog != null)
{
throw new InvalidOperationException(
"Dialog control must be removed from current collections first.");
}
if (!hostingDialog.IsCollectionChangeAllowed())
{
throw new InvalidOperationException(
"Modifying controls collection while dialog is showing is not supported.");
}
if (control is CommonFileDialogMenuItem)
{
throw new InvalidOperationException(
"CommonFileDialogMenuItem controls can only be added to CommonFileDialogMenu controls.");
}
// Reparent, add control.
control.HostingDialog = hostingDialog;
base.InsertItem(index, control);
// Notify that we've added a control.
hostingDialog.ApplyCollectionChanged();
}
/// <summary>Inserts an dialog control at the specified index.</summary>
/// <param name="index">The location to insert the control.</param>
/// <param name="control">The item to insert.</param>
/// <permission cref="InvalidOperationException">A control with the same name already exists in this collection -or- the control is being hosted by another dialog -or- the associated dialog is showing and cannot be modified.</permission>
protected override void InsertItem(int index, T control)
{
// Check for duplicates, lack of host, and during-show adds.
if (Items.Contains(control))
{
throw new InvalidOperationException(Resources.DialogCollectionCannotHaveDuplicateNames);
}
if (control.HostingDialog != null)
{
throw new InvalidOperationException(Resources.DialogCollectionControlAlreadyHosted);
}
if (!hostingDialog.IsCollectionChangeAllowed())
{
throw new InvalidOperationException(Resources.DialogCollectionModifyShowingDialog);
}
// Reparent, add control.
control.HostingDialog = hostingDialog;
base.InsertItem(index, control);
// Notify that we've added a control.
hostingDialog.ApplyCollectionChanged();
}
/// <summary>
/// Inserts an dialog control at the specified index.
/// </summary>
/// <param name="index">The location to insert the control.</param>
/// <param name="control">The item to insert.</param>
/// <permission cref="System.InvalidOperationException">A control with
/// the same name already exists in this collection -or-
/// the control is being hosted by another dialog -or- the associated dialog is
/// showing and cannot be modified.</permission>
protected override void InsertItem(int index, T control)
{
// Check for duplicates, lack of host,
// and during-show adds.
if (Items.Contains(control))
{
throw new InvalidOperationException(
LocalizedMessages.DialogControlCollectionMoreThanOneControl);
}
if (control.HostingDialog != null)
{
throw new InvalidOperationException(
LocalizedMessages.DialogControlCollectionRemoveControlFirst);
}
if (!hostingDialog.IsCollectionChangeAllowed())
{
throw new InvalidOperationException(
LocalizedMessages.DialogControlCollectionModifyingControls);
}
if (control is CommonFileDialogMenuItem)
{
throw new InvalidOperationException(
LocalizedMessages.DialogControlCollectionMenuItemControlsCannotBeAdded);
}
// Reparent, add control.
control.HostingDialog = hostingDialog;
base.InsertItem(index, control);
// Notify that we've added a control.
hostingDialog.ApplyCollectionChanged();
}