133 lines
4.5 KiB
C#
133 lines
4.5 KiB
C#
//=======================================================================================
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//
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// This source code is only intended as a supplement to existing Microsoft documentation.
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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// PURPOSE.
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//
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// Copyright (C) Microsoft Corporation. All Rights Reserved.
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//
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//=======================================================================================
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Data;
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using System.Text;
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using System.Windows.Forms;
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namespace Microsoft.ManagementConsole.Samples
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{
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/// <summary>
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/// Gets Name and Birthday
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/// </summary>
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public partial class MachinePropertiesControl : UserControl
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{
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/// <summary>
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/// Parent property page to expose data and state of property sheet
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/// </summary>
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private MachinePropertyPage machinePropertyPage;
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="parentPropertyPage">Container property page for the control</param>
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public MachinePropertiesControl(MachinePropertyPage parentPropertyPage)
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{
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// This call is required by the Windows.Forms Form Designer.
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InitializeComponent();
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// keep reference to parent
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machinePropertyPage = parentPropertyPage;
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}
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/// <summary>
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/// Populate control values from the SelectionObject (set in UserListView.SelectionOnChanged)
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/// </summary>
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/// <param name="sharedDataItem"></param>
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public void RefreshData(SharedDataItem sharedDataItem)
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{
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this.MachineName.Text = GetMachineName(sharedDataItem);
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machinePropertyPage.Dirty = false;
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}
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/// <summary>
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/// Update the node with the controls values
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/// </summary>
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/// <param name="sharedDataItem">Node being updated by property page</param>
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public void UpdateData(SharedDataItem sharedDataItem)
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{
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// In this sample the primary does not allow its data to be updated.
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// However, you can create primary nodes with updatable shared data
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// that would be accessed with a line such as the one below.
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// sharedDataItem.SetData(Encoding.Unicode.GetBytes(this.MachineName.Text));
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machinePropertyPage.Dirty = false;
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}
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/// <summary>
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/// Check during MachineProptertyPage.OnApply to ensure that changes can be Applied
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/// </summary>
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/// <returns>returns true if changes are valid</returns>
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public bool CanApplyChanges()
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{
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bool result = false;
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if (MachineName.Text.Trim().Length == 0)
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{
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MessageBox.Show("Machine Name cannot be blank");
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}
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else
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{
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result = true;
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}
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return result;
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}
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/// <summary>
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/// Notifies the PropertyPage that info has changed and that the PropertySheet can change the
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/// buttons
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void MachineName_TextChanged(object sender, System.EventArgs e)
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{
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machinePropertyPage.Dirty = true;
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}
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/// <summary>
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/// The computer name is published by the primary.
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/// Note: this defaults to an empty string for localhost.
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/// </summary>
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/// <param name="sharedDataItem"></param>
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private string GetMachineName(SharedDataItem sharedDataItem)
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{
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// get buffer containing the machine name
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string machineName = Encoding.Unicode.GetString(sharedDataItem.GetData());
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// find first null terminated string in buffer.
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if (machineName.IndexOf('\0') <= 0)
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{
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// either not found in buffer or first entry in buffer
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machineName = String.Empty;
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}
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else
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{
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machineName = machineName.Substring(0, machineName.IndexOf('\0'));
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}
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// if empty then localhost
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if (machineName == string.Empty)
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{
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machineName = "localhost";
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}
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return (machineName);
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}
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} // class
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} // namespace
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