mirror of
https://github.com/xcp-ng/xenadmin.git
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381 lines
13 KiB
C#
381 lines
13 KiB
C#
/* Copyright (c) Citrix Systems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms,
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* with or without modification, are permitted provided
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* that the following conditions are met:
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*
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* * Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Windows.Forms;
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using XenAdmin.Controls;
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using XenAdmin.Controls.Common;
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using XenAdmin.Core;
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using XenAdmin.Mappings;
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using XenAPI;
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using XenOvf;
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namespace XenAdmin.Wizards.ImportWizard
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{
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/// <summary>
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/// Class representing the page of the ImportAppliance wizard where the user specifies
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/// whether to run OS fixups.
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/// </summary>
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internal partial class ImportOptionsPage : XenTabPage
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{
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private SR m_selectedIsoSr;
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private string m_isoFilename;
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private IEnumerable<Host> m_hostTargets;
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private bool m_buttonNextEnabled;
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private bool m_fixupISOInLibrary;
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private List<SR> m_srsWithRegisteredEvents = new List<SR>();
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public ImportOptionsPage()
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{
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InitializeComponent();
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m_ctrlError.HideError();
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}
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#region Base class (XenTabPage) overrides
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/// <summary>
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/// Gets the page's title (headline)
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/// </summary>
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public override string PageTitle
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{
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get { return Messages.IMPORT_OPTIONS_PAGE_TITLE; }
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}
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/// <summary>
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/// Gets the page's label in the (left hand side) wizard progress panel
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/// </summary>
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public override string Text
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{
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get { return Messages.IMPORT_OPTIONS_PAGE_TEXT; }
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}
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protected override bool ImplementsIsDirty()
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{
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return true;
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}
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public override void PopulatePage()
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{
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var isoName = Path.GetFileName(XenOvf.Properties.Settings.Default.xenLinuxFixUpDisk);
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VDI theVdi = Connection.Cache.VDIs.FirstOrDefault(vdi => vdi != null && vdi.name_label == isoName);
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m_fixupISOInLibrary = theVdi != null;
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if (m_fixupISOInLibrary) //found existing fixup ISO on an ISO SR
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{
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PopulateComboBox(Connection.Resolve(theVdi.SR));
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}
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else //iso has not been placed on an ISO SR
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{
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GetFixupIsoInfo();
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PopulateComboBox();
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}
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ResetSelectedIsoSr();
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m_radioButtonDontRunOSFixups.Checked = true;
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}
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public override bool EnableNext()
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{
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return m_buttonNextEnabled;
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}
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#endregion
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#region Accessors
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public bool RunFixups { get { return m_radioButtonRunOSFixups.Checked; } }
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public SR SelectedIsoSR { get { return m_selectedIsoSr; } }
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public Dictionary<string, VmMapping> VmMappings { set { m_hostTargets = from VmMapping mapping in value.Values select Connection.Resolve(mapping.XenRef as XenRef<Host>); } }
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#endregion
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#region Private methods
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/// <summary>
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/// Performs certain checks on the pages's input data and shows/hides an error accordingly
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/// </summary>
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/// <param name="checks">The checks to perform</param>
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private void PerformCheck(params CheckDelegate[] checks)
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{
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m_buttonNextEnabled = m_ctrlError.PerformCheck(checks);
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OnPageUpdated();
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}
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private bool IsIsoSrSelectable(SR sr)
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{
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return sr.content_type.ToLower() == "iso"
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&& sr.type.ToLower() == "iso"
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&& !sr.IsToolsSR
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&& m_hostTargets.All(sr.CanBeSeenFrom); //returns true if the list is empty
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}
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private void DeregisterEvents()
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{
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foreach (var sr in m_srsWithRegisteredEvents)
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{
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sr.PropertyChanged -= sr_PropertyChanged;
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}
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}
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private string GetSRDropDownItemDisplayString(SR sr)
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{
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return string.Format("{0} ({1})", sr.Name, Util.DiskSizeString(sr.FreeSpace));
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}
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private void PopulateComboBox()
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{
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PopulateComboBox(null);
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}
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private void PopulateComboBox(SR selectedSR)
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{
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var availableSRs = new List<SR>();
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foreach (var sr in Connection.Cache.SRs)
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{
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if (IsIsoSrSelectable(sr))
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{
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if (!m_srsWithRegisteredEvents.Contains(sr))
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m_srsWithRegisteredEvents.Add(sr);
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sr.PropertyChanged -= sr_PropertyChanged;
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sr.PropertyChanged += sr_PropertyChanged;
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availableSRs.Add(sr);
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}
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}
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try
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{
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m_comboBoxISOLibraries.SuspendLayout();
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m_comboBoxISOLibraries.Items.Clear();
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m_comboBoxISOLibraries.Items.Add(new ToStringWrapper<SR>(null, Messages.IMPORT_OPTIONS_PAGE_CHOOSE_ISO_SR));
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SetSelectedIndexWithoutEvent(0);
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foreach (var sr in availableSRs)
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{
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int index = m_comboBoxISOLibraries.Items.Add(new ToStringWrapper<SR>(sr, GetSRDropDownItemDisplayString));
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if (selectedSR != null && selectedSR.Equals(sr))
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SetSelectedIndexWithoutEvent(index);
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}
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m_comboBoxISOLibraries.Items.Add(new ToStringWrapper<SR>(null, Messages.IMPORT_OPTIONS_PAGE_NEW_ISO_LIBRARY));
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}
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finally
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{
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m_comboBoxISOLibraries.ResumeLayout();
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}
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}
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private void GetFixupIsoInfo()
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{
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m_isoFilename = OVF.GetISOFixupFileName();
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}
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/// <summary>
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/// Checks fixup ISO exists in the XenCenter installation directory
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/// </summary>
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private bool CheckFixupIsoInXencenterInstallation(out string error)
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{
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error = string.Empty;
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if (m_radioButtonDontRunOSFixups.Checked || m_fixupISOInLibrary || !string.IsNullOrEmpty(m_isoFilename))
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return true;
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error = Messages.IMPORT_OPTIONS_PAGE_ERROR_NO_FIXUP_ISO_INSTALLED;
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return false;
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}
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private bool CheckSelectedFixupValid(out string error)
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{
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error = String.Empty;
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return m_radioButtonDontRunOSFixups.Checked || m_selectedIsoSr != null;
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}
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private void sr_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
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{
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if (e.PropertyName != "name_label" && e.PropertyName != "physical_size" &&
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e.PropertyName != "physical_utilisation")
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return;
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var sr = sender as SR;
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if (sr == null)
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return;
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bool selectable = IsIsoSrSelectable(sr);
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var existingItems =
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m_comboBoxISOLibraries.Items.OfType<ToStringWrapper<SR>>().Where(wrapper => sr.Equals(wrapper.item));
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if (existingItems.Count() == 1)
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{
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if (selectable)
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Program.Invoke(this, () =>
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{
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var wrapper = existingItems.First();
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m_comboBoxISOLibraries.SuspendLayout();
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try
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{
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int index = m_comboBoxISOLibraries.Items.IndexOf(wrapper);
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int selectedIndex = m_comboBoxISOLibraries.SelectedIndex;
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m_comboBoxISOLibraries.Items.RemoveAt(index);
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m_comboBoxISOLibraries.Items.Insert(index, new ToStringWrapper<SR>(sr, GetSRDropDownItemDisplayString));
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SetSelectedIndexWithoutEvent(selectedIndex);
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}
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finally
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{
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m_comboBoxISOLibraries.ResumeLayout();
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}
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});
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else
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Program.Invoke(this, PopulateComboBox);
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}
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else if (selectable)
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{
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Program.Invoke(this, PopulateComboBox);
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}
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}
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private void SetSelectedIndexWithoutEvent(int newIndex)
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{
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m_comboBoxISOLibraries.SelectedIndexChanged -= m_comboBoxISOLibraries_SelectedIndexChanged;
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try
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{
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m_comboBoxISOLibraries.SelectedIndex = newIndex;
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}
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finally
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{
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m_comboBoxISOLibraries.SelectedIndexChanged += m_comboBoxISOLibraries_SelectedIndexChanged;
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}
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}
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private bool IsNewISOLibraryItem(ToStringWrapper<SR> wrapper)
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{
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return (wrapper.Equals(m_comboBoxISOLibraries.Items[m_comboBoxISOLibraries.Items.Count - 1]) &&
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wrapper.ToStringProperty.Equals(Messages.IMPORT_OPTIONS_PAGE_NEW_ISO_LIBRARY));
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}
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private void OpenNewSRWizard()
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{
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SetSelectedIndexWithoutEvent(0);
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ResetControlsAfterSelectedIndexChanged();
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NewSRWizard wizard = new NewSRWizard(Connection);
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wizard.CheckNFSISORadioButton();
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if (wizard.ShowDialog() == DialogResult.OK)
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PopulateComboBox();
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}
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private void ResetSelectedIsoSr()
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{
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ToStringWrapper<SR> wrapper = m_comboBoxISOLibraries.SelectedItem as ToStringWrapper<SR>;
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m_selectedIsoSr = wrapper != null ? wrapper.item : null;
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}
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private void ResetControlsAfterSelectedIndexChanged()
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{
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ResetSelectedIsoSr();
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PerformCheck(CheckFixupIsoInXencenterInstallation, CheckSelectedFixupValid);
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if (!m_ctrlError.Visible)
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{
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m_pictureBoxInfo.Visible = m_selectedIsoSr != null;
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m_labelFixupISOInfo.Visible = m_selectedIsoSr != null;
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if (m_labelFixupISOInfo.Visible)
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m_labelFixupISOInfo.Text = Messages.IMPORT_OPTIONS_PAGE_USE_SELECTED_ISO_LIBRARY;
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}
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}
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#endregion
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#region Control event Handlers
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private void m_comboBoxISOLibraries_SelectedIndexChanged(object sender, EventArgs e)
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{
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ToStringWrapper<SR> wrapper = m_comboBoxISOLibraries.SelectedItem as ToStringWrapper<SR>;
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if (wrapper == null)
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return;
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if (IsNewISOLibraryItem(wrapper))
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{
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OpenNewSRWizard();
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return;
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}
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ResetControlsAfterSelectedIndexChanged();
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}
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private void m_radioButtonRunOSFixups_CheckedChanged(object sender, EventArgs e)
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{
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if (m_radioButtonRunOSFixups.Checked)
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{
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m_labelLocationFixupISO.Enabled = true;
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PerformCheck(CheckFixupIsoInXencenterInstallation, CheckSelectedFixupValid);
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if (!m_ctrlError.Visible)
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{
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SR sr = m_selectedIsoSr;
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m_comboBoxISOLibraries.Enabled = !m_fixupISOInLibrary || sr == null;
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if (sr != null)
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{
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m_pictureBoxInfo.Visible = true;
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m_labelFixupISOInfo.Visible = true;
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m_labelFixupISOInfo.Text = m_fixupISOInLibrary
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? Messages.IMPORT_OPTIONS_PAGE_FOUND_EXISTING_ISO
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: Messages.IMPORT_OPTIONS_PAGE_USE_SELECTED_ISO_LIBRARY;
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}
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}
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IsDirty = true;
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}
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}
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private void m_radioButtonDontRunOSFixups_CheckedChanged(object sender, EventArgs e)
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{
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if (m_radioButtonDontRunOSFixups.Checked)
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{
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m_labelLocationFixupISO.Enabled = false;
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m_comboBoxISOLibraries.Enabled = false;
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m_pictureBoxInfo.Visible = false;
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m_labelFixupISOInfo.Visible = false;
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PerformCheck(CheckFixupIsoInXencenterInstallation);
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}
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}
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#endregion
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}
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}
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