xenadmin/XenAdmin/Wizards/CrossPoolMigrateWizard/CrossPoolMigrateCopyModePage.cs

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using System.Collections.Generic;
using XenAdmin.Controls;
using XenAPI;

namespace XenAdmin.Wizards.CrossPoolMigrateWizard
{
    public partial class CrossPoolMigrateCopyModePage : XenTabPage
    {
        private List<VM> selectedVMs;

        public CrossPoolMigrateCopyModePage(List<VM> selectedVMs)
        {
            this.selectedVMs = selectedVMs; 
            InitializeComponent();
        }

        private bool _buttonNextEnabled;

        #region Base class (XenTabPage) overrides

        /// <summary>
        /// Gets the page's title (headline)
        /// </summary>
        public override string PageTitle { get { return Messages.CPM_WIZARD_COPY_MODE_TITLE; } }

        /// <summary>
        /// Gets the page's label in the (left hand side) wizard progress panel
        /// </summary>
        public override string Text { get { return Messages.CPM_WIZARD_COPY_MODE_TAB_TITLE;  } }

        /// <summary>
        /// Gets the value by which the help files section for this page is identified
        /// </summary>
        public override string HelpID { get { return "CopyMode"; } }

        protected override bool ImplementsIsDirty()
        {
            return false;
        }

        public override void PageLoaded(PageLoadedDirection direction)
        {
            base.PageLoaded(direction);//call first so the page gets populated
            SetButtonsEnabled(true);
        }

        public override void PopulatePage()
        {
            SetButtonsEnabled(true);
            base.PopulatePage();
        }

        public bool IntraPoolCopySelected
        {
            get { return intraPoolRadioButton.Checked; }
        }

        public override bool EnableNext()
        {
            return _buttonNextEnabled;
        }

        public override void PageLeave(PageLoadedDirection direction, ref bool cancel)
        {
            if (!CrossPoolMigrateWizard.AllVMsAvailable(selectedVMs))
            {
                cancel = true;
                SetButtonsEnabled(false);
            }

            base.PageLeave(direction, ref cancel);
        }
        #endregion

        protected void SetButtonsEnabled(bool enabled)
        {
            _buttonNextEnabled = enabled;
            OnPageUpdated();
        }
    }
}