Context Help authoring anywhere/anytime/anyone for .NET application

using System;
using System.Diagnostics;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.IO;
using System.Reflection;
using System.Windows.Forms;

namespace Slimzhao
{
	/// <summary>
	/// Summary description for MergeHelpString.
	/// </summary>
	public class MergeHelpString : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button m_btn_ok;
		private System.Windows.Forms.Button m_btn_cancel;
		private System.Windows.Forms.ListView m_lstview_help_str;
		private System.Windows.Forms.Label m_lab_assembly;
		private System.Windows.Forms.ComboBox m_combox_assembly;
		private System.Windows.Forms.Label m_lab_Form;
		private System.Windows.Forms.ComboBox m_combox_Form;
		private System.Windows.Forms.TextBox m_txtbox_ori;
		private System.Windows.Forms.RadioButton m_radio_all_use_mine;
		private System.Windows.Forms.RadioButton m_radio_all_use_others;
		private System.Windows.Forms.Label m_lab_my_help_str;
		private System.Windows.Forms.Label m_lab_others_help_str;
		private System.Windows.Forms.TextBox m_txtbox_conflict;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public MergeHelpString()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//

			m_lstview_help_str.Columns.Add("Assembly Name", 20, HorizontalAlignment.Left);
			m_lstview_help_str.Columns.Add("Form Name", 20, HorizontalAlignment.Left);
			m_lstview_help_str.Columns.Add("Control Name", 20, HorizontalAlignment.Left);
			m_lstview_help_str.Columns.Add("Language", 20, HorizontalAlignment.Left);
			
			m_lstview_help_str.Columns.Add("Use", 20, HorizontalAlignment.Left);
			m_ori_use_me_col = m_lstview_help_str.Columns[m_lstview_help_str.Columns.Count - 1];
			
			m_lstview_help_str.Columns.Add("Mine", 20, HorizontalAlignment.Left);
			
			m_lstview_help_str.Columns.Add("Use", 20, HorizontalAlignment.Left);
			m_con_use_me_col = m_lstview_help_str.Columns[m_lstview_help_str.Columns.Count - 1];
			
			m_lstview_help_str.Columns.Add("Others", 20, HorizontalAlignment.Left);

			foreach(ColumnHeader col in m_lstview_help_str.Columns)
			{
				//ref: http://www.dotnet247.com/247reference/msgs/11/57142.aspx
				col.Width = -2;
			}
		}

		/// <summary>
		/// 
		/// </summary>
		/// <param name="origin_help">Readonly original help</param>
		/// <param name="conflict"></param>
		internal void set_conflict(Hashtable origin_help, Hashtable conflict)
		{
			Debug.Assert(origin_help != null, "set_conflict: origin_help is null");
			Debug.Assert(conflict != null, "set_conflict: conflict is null");

			m_origin_help = duplicate_hash(origin_help);
			
			m_conflict = conflict;
			m_combox_assembly.BeginUpdate();
			m_combox_assembly.Items.Clear();
			try
			{
				Assembly_Item item = new Assembly_Item(true, null );
				m_combox_assembly.Items.Add(item);
				foreach (DictionaryEntry entry in conflict)
				{
					item = new Assembly_Item(false, entry.Key as string );
					m_combox_assembly.Items.Add(item);
				}
			}
			finally
			{
				m_combox_assembly.EndUpdate();
			}
			if( m_combox_assembly.Items.Count > 0 )
			{
				m_combox_assembly.SelectedIndex = 0;
			}

			EasyHelpString.InitSingleComboBoxDropDownWidth( m_combox_assembly );
		}

		private static Hashtable duplicate_hash(Hashtable origin_help)
		{
			Hashtable val = new Hashtable();
			foreach(string assem_name in origin_help.Keys)
			{
				ArrayList new_arr = new ArrayList();
				val[assem_name] = new_arr;

				foreach(FormControl ori_fc in origin_help[assem_name] as ArrayList)
				{
					FormControl new_fc = new FormControl(ori_fc.FullFormName);

					foreach(DictionaryEntry entry in ori_fc.ControlName_VS_Lang_Help)
					{
						Hashtable new_lang_2_help = new Hashtable();
						foreach(DictionaryEntry ori_lang_2_help in entry.Value as Hashtable)
						{
							new_lang_2_help[ori_lang_2_help.Key] = ori_lang_2_help.Value;
						}
						new_fc.ControlName_VS_Lang_Help[entry.Key] = new_lang_2_help;
					}
					new_arr.Add(new_fc);
				}
			}
			return val;
		}

		class Assembly_Item
		{
			private string m_fs_assem_fname;
			private bool m_is_all;

			private static ArrayList s_arrList_assem_fnames = new ArrayList();

			/// <summary>
			/// File name only, case-sensitive
			/// </summary>
			internal string Assembly_Name
			{
				get { return m_fs_assem_fname; }
			}
			internal bool IsAll
			{
				get { return m_is_all; }
			}
			static Assembly_Item()
			{
				foreach(Assembly a in AppDomain.CurrentDomain.GetAssemblies() )
				{
					s_arrList_assem_fnames.Add(Path.GetFileName(a.Location));
				}
				s_arrList_assem_fnames.Sort(CaseInsensitiveComparer.Default);
			}
			internal Assembly_Item(bool is_all, string lower_assem_fname_only)
			{
				m_is_all = is_all;
				if( is_all ) return;

				int idx = s_arrList_assem_fnames.BinarySearch(lower_assem_fname_only,
					CaseInsensitiveComparer.Default) ;
				Debug.Assert( idx > -1, string.Format(
					"Failed to find assembly {0}", lower_assem_fname_only) );
				m_fs_assem_fname = s_arrList_assem_fnames[idx] as string;
			}
			public override string ToString()
			{
				return (m_is_all) ? "All" : m_fs_assem_fname;
			}

			public static string GetFileName(string assem_lcase_name)
			{
				int idx = s_arrList_assem_fnames.BinarySearch(assem_lcase_name,
					CaseInsensitiveComparer.Default) ;
				Debug.Assert( idx > -1, string.Format(
					"Failed to find assembly {0}", assem_lcase_name) );
				return s_arrList_assem_fnames[idx] as string;
			}
		}
		private Hashtable m_origin_help;
		private Hashtable m_conflict;
		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.m_btn_ok = new System.Windows.Forms.Button();
			this.m_btn_cancel = new System.Windows.Forms.Button();
			this.m_lstview_help_str = new System.Windows.Forms.ListView();
			this.m_lab_assembly = new System.Windows.Forms.Label();
			this.m_combox_assembly = new System.Windows.Forms.ComboBox();
			this.m_lab_Form = new System.Windows.Forms.Label();
			this.m_combox_Form = new System.Windows.Forms.ComboBox();
			this.m_txtbox_ori = new System.Windows.Forms.TextBox();
			this.m_txtbox_conflict = new System.Windows.Forms.TextBox();
			this.m_lab_my_help_str = new System.Windows.Forms.Label();
			this.m_lab_others_help_str = new System.Windows.Forms.Label();
			this.m_radio_all_use_mine = new System.Windows.Forms.RadioButton();
			this.m_radio_all_use_others = new System.Windows.Forms.RadioButton();
			this.SuspendLayout();
			// 
			// m_btn_ok
			// 
			this.m_btn_ok.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
			this.m_btn_ok.DialogResult = System.Windows.Forms.DialogResult.OK;
			this.m_btn_ok.Location = new System.Drawing.Point(720, 482);
			this.m_btn_ok.Name = "m_btn_ok";
			this.m_btn_ok.TabIndex = 0;
			this.m_btn_ok.Text = "&OK";
			this.m_btn_ok.Click += new System.EventHandler(this.m_btn_ok_Click);
			// 
			// m_btn_cancel
			// 
			this.m_btn_cancel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
			this.m_btn_cancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
			this.m_btn_cancel.Location = new System.Drawing.Point(800, 482);
			this.m_btn_cancel.Name = "m_btn_cancel";
			this.m_btn_cancel.TabIndex = 0;
			this.m_btn_cancel.Text = "&Cancel";
			// 
			// m_lstview_help_str
			// 
			this.m_lstview_help_str.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
				| System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right)));
			this.m_lstview_help_str.FullRowSelect = true;
			this.m_lstview_help_str.HeaderStyle = System.Windows.Forms.ColumnHeaderStyle.Nonclickable;
			this.m_lstview_help_str.HideSelection = false;
			this.m_lstview_help_str.Location = new System.Drawing.Point(8, 40);
			this.m_lstview_help_str.MultiSelect = false;
			this.m_lstview_help_str.Name = "m_lstview_help_str";
			this.m_lstview_help_str.Size = new System.Drawing.Size(864, 288);
			this.m_lstview_help_str.TabIndex = 1;
			this.m_lstview_help_str.View = System.Windows.Forms.View.Details;
			this.m_lstview_help_str.Click += new System.EventHandler(this.m_lstview_help_str_Click);
			this.m_lstview_help_str.SelectedIndexChanged += new System.EventHandler(this.m_lstview_help_str_SelectedIndexChanged);
			// 
			// m_lab_assembly
			// 
			this.m_lab_assembly.Location = new System.Drawing.Point(8, 8);
			this.m_lab_assembly.Name = "m_lab_assembly";
			this.m_lab_assembly.Size = new System.Drawing.Size(80, 23);
			this.m_lab_assembly.TabIndex = 2;
			this.m_lab_assembly.Text = "Assembly:";
			this.m_lab_assembly.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
			// 
			// m_combox_assembly
			// 
			this.m_combox_assembly.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
			this.m_combox_assembly.Location = new System.Drawing.Point(104, 9);
			this.m_combox_assembly.Name = "m_combox_assembly";
			this.m_combox_assembly.Size = new System.Drawing.Size(121, 20);
			this.m_combox_assembly.TabIndex = 3;
			this.m_combox_assembly.SelectedIndexChanged += new System.EventHandler(this.m_combox_assembly_SelectedIndexChanged);
			// 
			// m_lab_Form
			// 
			this.m_lab_Form.Location = new System.Drawing.Point(240, 8);
			this.m_lab_Form.Name = "m_lab_Form";
			this.m_lab_Form.Size = new System.Drawing.Size(48, 23);
			this.m_lab_Form.TabIndex = 2;
			this.m_lab_Form.Text = "Forms:";
			this.m_lab_Form.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
			// 
			// m_combox_Form
			// 
			this.m_combox_Form.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
			this.m_combox_Form.Location = new System.Drawing.Point(296, 8);
			this.m_combox_Form.Name = "m_combox_Form";
			this.m_combox_Form.Size = new System.Drawing.Size(121, 20);
			this.m_combox_Form.TabIndex = 3;
			this.m_combox_Form.SelectedIndexChanged += new System.EventHandler(this.m_combox_Form_SelectedIndexChanged);
			// 
			// m_txtbox_ori
			// 
			this.m_txtbox_ori.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
			this.m_txtbox_ori.Location = new System.Drawing.Point(16, 360);
			this.m_txtbox_ori.Multiline = true;
			this.m_txtbox_ori.Name = "m_txtbox_ori";
			this.m_txtbox_ori.Size = new System.Drawing.Size(408, 112);
			this.m_txtbox_ori.TabIndex = 4;
			this.m_txtbox_ori.Text = "";
			this.m_txtbox_ori.TextChanged += new System.EventHandler(this.m_txtbox_ori_TextChanged);
			// 
			// m_txtbox_conflict
			// 
			this.m_txtbox_conflict.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
			this.m_txtbox_conflict.Location = new System.Drawing.Point(464, 360);
			this.m_txtbox_conflict.Multiline = true;
			this.m_txtbox_conflict.Name = "m_txtbox_conflict";
			this.m_txtbox_conflict.Size = new System.Drawing.Size(408, 112);
			this.m_txtbox_conflict.TabIndex = 4;
			this.m_txtbox_conflict.Text = "";
			this.m_txtbox_conflict.TextChanged += new System.EventHandler(this.m_txtbox_ori_TextChanged);
			// 
			// m_lab_my_help_str
			// 
			this.m_lab_my_help_str.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
			this.m_lab_my_help_str.Location = new System.Drawing.Point(16, 336);
			this.m_lab_my_help_str.Name = "m_lab_my_help_str";
			this.m_lab_my_help_str.Size = new System.Drawing.Size(88, 23);
			this.m_lab_my_help_str.TabIndex = 2;
			this.m_lab_my_help_str.Text = "My Help str:";
			this.m_lab_my_help_str.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
			// 
			// m_lab_others_help_str
			// 
			this.m_lab_others_help_str.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
			this.m_lab_others_help_str.Location = new System.Drawing.Point(464, 336);
			this.m_lab_others_help_str.Name = "m_lab_others_help_str";
			this.m_lab_others_help_str.Size = new System.Drawing.Size(128, 23);
			this.m_lab_others_help_str.TabIndex = 2;
			this.m_lab_others_help_str.Text = "Help str from others";
			this.m_lab_others_help_str.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
			// 
			// m_radio_all_use_mine
			// 
			this.m_radio_all_use_mine.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
			this.m_radio_all_use_mine.Location = new System.Drawing.Point(120, 336);
			this.m_radio_all_use_mine.Name = "m_radio_all_use_mine";
			this.m_radio_all_use_mine.TabIndex = 5;
			this.m_radio_all_use_mine.Text = "All use mine";
			this.m_radio_all_use_mine.CheckedChanged += new System.EventHandler(this.m_radio_all_use_mine_CheckedChanged);
			// 
			// m_radio_all_use_others
			// 
			this.m_radio_all_use_others.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
			this.m_radio_all_use_others.Checked = true;
			this.m_radio_all_use_others.Location = new System.Drawing.Point(600, 336);
			this.m_radio_all_use_others.Name = "m_radio_all_use_others";
			this.m_radio_all_use_others.Size = new System.Drawing.Size(112, 24);
			this.m_radio_all_use_others.TabIndex = 5;
			this.m_radio_all_use_others.TabStop = true;
			this.m_radio_all_use_others.Text = "All use others";
			this.m_radio_all_use_others.CheckedChanged += new System.EventHandler(this.m_radio_all_use_mine_CheckedChanged);
			// 
			// MergeHelpString
			// 
			this.AcceptButton = this.m_btn_ok;
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.CancelButton = this.m_btn_cancel;
			this.ClientSize = new System.Drawing.Size(888, 509);
			this.ControlBox = false;
			this.Controls.Add(this.m_radio_all_use_mine);
			this.Controls.Add(this.m_txtbox_ori);
			this.Controls.Add(this.m_txtbox_conflict);
			this.Controls.Add(this.m_combox_assembly);
			this.Controls.Add(this.m_lab_assembly);
			this.Controls.Add(this.m_lstview_help_str);
			this.Controls.Add(this.m_btn_ok);
			this.Controls.Add(this.m_btn_cancel);
			this.Controls.Add(this.m_lab_Form);
			this.Controls.Add(this.m_combox_Form);
			this.Controls.Add(this.m_lab_my_help_str);
			this.Controls.Add(this.m_lab_others_help_str);
			this.Controls.Add(this.m_radio_all_use_others);
			this.MaximizeBox = false;
			this.MinimizeBox = false;
			this.Name = "MergeHelpString";
			this.ShowInTaskbar = false;
			this.Text = "MergeHelpString";
			this.MouseMove += new System.Windows.Forms.MouseEventHandler(this.MergeHelpString_MouseMove);
			this.ResumeLayout(false);

		}
		#endregion

		private void MergeHelpString_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
		{
			if( e.Button == MouseButtons.Left )
			{
				Native.ReleaseCapture();
				Native.SendMessage(this.Handle, Native.WM_NCLBUTTONDOWN, Native.HTCAPTION, 0);
			}
		}

		private void m_combox_assembly_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			Assembly_Item item = m_combox_assembly.SelectedItem as Assembly_Item;
			Debug.Assert(item != null, "");

			m_combox_Form.Items.Clear();
			if( item.IsAll )
			{
				m_combox_Form.Enabled = false;
				m_combox_Form_SelectedIndexChanged(m_combox_Form, EventArgs.Empty);
				return;
			}

			m_combox_Form.Enabled = true;
			
			ArrayList arr = m_conflict[ item.Assembly_Name.ToLower() ] as ArrayList;
			Debug.Assert( arr != null, "");

			m_combox_Form.BeginUpdate();
			try
			{
				foreach(FormControl fc in arr)
				{
					m_combox_Form.Items.Add(fc);
				}
			}
			finally
			{
				m_combox_Form.EndUpdate();
			}

			if( m_combox_Form.Items.Count > 0 )
			{
				m_combox_Form.SelectedIndex = 0;
			}
			EasyHelpString.InitSingleComboBoxDropDownWidth( m_combox_Form );
		}

		const string c_checked_symbol = "��";
		private void m_combox_Form_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			Assembly_Item assem_item = m_combox_assembly.SelectedItem as Assembly_Item;

			Hashtable hashtable = new Hashtable();
			if( assem_item.IsAll )
			{
				hashtable = m_conflict;
			}
			else
			{
				ArrayList arr_FormControl = new ArrayList();
				arr_FormControl.Add(m_combox_Form.SelectedItem );
				hashtable[assem_item.Assembly_Name.ToLower()] = arr_FormControl;
			}
			m_lstview_help_str.BeginUpdate();
			m_lstview_help_str.Items.Clear();
			try
			{
				foreach(DictionaryEntry assem_2_arr_FormControl in hashtable)
				{
					string assem_lcase_name = assem_2_arr_FormControl.Key as string;
					foreach(FormControl form_control in (assem_2_arr_FormControl.Value as ArrayList) )
					{
						FormControl ori_form_control = form_control.find_name_matched(
							m_origin_help[assem_lcase_name] as ArrayList);

						Debug.Assert( ori_form_control != null, "Not found counter part");

						Hashtable ctrl_name_VS_lang_help = form_control.ControlName_VS_Lang_Help;
						Hashtable ori_ctrl_name_VS_lang_help = ori_form_control.ControlName_VS_Lang_Help;
						foreach(DictionaryEntry entry in ctrl_name_VS_lang_help)
						{
							Hashtable lang_VS_help = entry.Value as Hashtable;
							Hashtable ori_lang_VS_help = ori_ctrl_name_VS_lang_help[ entry.Key] as Hashtable;
							foreach(DictionaryEntry lang_D_help in lang_VS_help)
							{
								string lang = lang_D_help.Key as string;
								ListViewItem item = new ListViewItem(new string[]
								    {
								      Assembly_Item.GetFileName(assem_lcase_name ),
										form_control.FullFormName,
										entry.Key as string, lang, "", ori_lang_VS_help[lang] as string,
								      c_checked_symbol, lang_D_help.Value as string }
									);
								item.Tag = form_control;
								m_lstview_help_str.Items.Add(item);
							}
						}
					}
				}
			}
			finally
			{
				m_lstview_help_str.EndUpdate();
			}
			if( m_lstview_help_str.Items.Count > 0)
			{
				m_lstview_help_str.Items[0].Selected = true;
			}
		}

		private void m_lstview_help_str_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			b_click_use_ori_col_before_change_idx = false;
			b_click_use_con_col_before_change_idx = false;

			if( m_lstview_help_str.SelectedItems.Count < 1 )
			{
				set_text_withoug_TextChanged(m_txtbox_conflict, string.Empty);
				set_text_withoug_TextChanged(m_txtbox_ori, string.Empty);
				m_txtbox_conflict.Enabled = m_txtbox_ori.Enabled = false;
				return;
			}

			m_txtbox_conflict.Enabled = m_txtbox_ori.Enabled = true;
			
			ListViewItem item = m_lstview_help_str.SelectedItems[0];
			Debug.Assert( item != null, "");

			set_text_withoug_TextChanged(m_txtbox_ori, string.Empty);

			string lang_name = item.SubItems[ col_idx_lang ] .Text;
			Debug.Assert(lang_name != null && lang_name.Length > 0, "");
			string ctrl_name = item.SubItems[col_idx_ctrl_name].Text;

			//Original
			string assem_name = item.SubItems[col_idx_assem_name].Text.ToLower();
			FormControl con_fc = item.Tag as FormControl;
			FormControl ori_fc = con_fc.find_name_matched(m_origin_help[assem_name] as ArrayList);

			Hashtable con_lang_2_help = con_fc.ControlName_VS_Lang_Help[ctrl_name ] as Hashtable;
			Hashtable ori_lang_2_help = ori_fc.ControlName_VS_Lang_Help[ ctrl_name] as Hashtable;

			set_text_withoug_TextChanged(m_txtbox_conflict, con_lang_2_help[ lang_name ] as string);
			set_text_withoug_TextChanged(m_txtbox_ori,      ori_lang_2_help[ lang_name ] as string);
		}

		private void set_text_withoug_TextChanged(TextBox txtbox, string text)
		{
			try
			{
				change_by_lst_view = true;
				txtbox.Text = text;
			}
			finally
			{
				change_by_lst_view = false;
			}
		}
		private static int col_idx_assem_name = 0;
		private static int col_idx_form_name = 1;
		private static int col_idx_ctrl_name = 2;
		private static int col_idx_lang = 3;
		private static int col_idx_use_mine = 4;
		private static int col_idx_help_mine = 5;
		private static int col_idx_use_others = 6;
		private static int col_idx_help_others = 7;

		private bool b_click_use_ori_col_before_change_idx = false;
		private bool b_click_use_con_col_before_change_idx = false;
		private void m_lstview_help_str_Click(object sender, System.EventArgs e)
		{
			Point pt = m_lstview_help_str.PointToClient(MousePosition);
			ListViewItem item = m_lstview_help_str.GetItemAt(pt.X, pt.Y);
			if( item == null )
				return;

			ListViewItem selected_item = null;
			if( m_lstview_help_str.SelectedItems.Count > 0)
				selected_item = m_lstview_help_str.SelectedItems[0];

			//Get the start and end position of Original use and Conflict use
			int start_x = 0;
			int ori_start_x = 0, ori_end_x = 0, con_start_x = 0, con_end_x = 0;
			foreach(ColumnHeader col in m_lstview_help_str.Columns)
			{
				if( col == m_ori_use_me_col)
				{
					ori_start_x = start_x;
					ori_end_x = start_x + col.Width;
				}
				if( col == m_con_use_me_col)
				{
					con_start_x = start_x;
					con_end_x = start_x + col.Width;
				}
				start_x += col.Width;
			}

			b_click_use_ori_col_before_change_idx = ( ori_start_x <= pt.X && ori_end_x >= pt.X );
			b_click_use_con_col_before_change_idx = ( con_start_x <= pt.X && con_end_x >= pt.X );

			if( selected_item != item )
			{
				return;
			}
			//Check on/off Use mine help str
			ListViewItem.ListViewSubItem use_mine = item.SubItems[col_idx_use_mine];
			ListViewItem.ListViewSubItem use_others = item.SubItems[col_idx_use_others];
			if( b_click_use_ori_col_before_change_idx )
			{
				use_mine.Text   = c_checked_symbol;
				use_others.Text = string.Empty;
			}
			if( b_click_use_con_col_before_change_idx )
			{
				use_others.Text   = string.Empty;
				use_mine.Text = c_checked_symbol;
			}
		}

		private ColumnHeader m_ori_use_me_col = null;
		private ColumnHeader m_con_use_me_col = null;

		private void m_btn_ok_Click(object sender, System.EventArgs e)
		{
			//Save to conflict
			foreach(ListViewItem item in m_lstview_help_str.Items)
			{
				ListViewItem.ListViewSubItem use_mine = item.SubItems[col_idx_use_mine];
				bool b_use_mine = (use_mine.Text != "");
				if( b_use_mine )
				{
					FormControl con_fc = item.Tag as FormControl;
					string con_assem_name = item.SubItems[col_idx_assem_name].Text.ToLower();
					string con_ctrl_name = item.SubItems[col_idx_ctrl_name].Text.ToLower();
					string con_lang_str = item.SubItems[col_idx_lang].Text.ToLower();

					FormControl ori_fc = con_fc.find_name_matched(m_origin_help[ con_assem_name.ToLower() ] as ArrayList );
					Debug.Assert( ori_fc != null, "Not found ");

					Hashtable ori_lang_help = ori_fc.ControlName_VS_Lang_Help[con_ctrl_name] as Hashtable;
					
					Hashtable con_lang_help = con_fc.ControlName_VS_Lang_Help[con_ctrl_name] as Hashtable;
					con_lang_help[con_lang_str] = ori_lang_help[con_lang_str];
				}
			}
		}

		private void m_radio_all_use_mine_CheckedChanged(object sender, System.EventArgs e)
		{
			RadioButton r = sender as RadioButton;
			if( r.Checked == false )
				return;

			bool all_mine = (sender == m_radio_all_use_mine);
			foreach(ListViewItem item in m_lstview_help_str.Items)
			{
				ListViewItem.ListViewSubItem use_mine = item.SubItems[col_idx_use_mine];
				ListViewItem.ListViewSubItem use_others = item.SubItems[col_idx_use_others];

				use_mine.Text = (all_mine)? c_checked_symbol: "";
				use_others.Text = (all_mine == false )? c_checked_symbol: "";
			}
		}

		private bool change_by_lst_view = false;
		private void m_txtbox_ori_TextChanged(object sender, System.EventArgs e)
		{
			if( change_by_lst_view )
				return;

			bool change_mine = (sender == m_txtbox_ori);

			Debug.Assert( m_lstview_help_str.Items.Count > 0);

			ListViewItem sele_item = m_lstview_help_str.SelectedItems[0];
			
			FormControl con_fc = sele_item.Tag as FormControl;

			string con_assem_name = sele_item.SubItems[col_idx_assem_name].Text.ToLower();
			string con_ctrl_name = sele_item.SubItems[col_idx_ctrl_name].Text.ToLower();
			string con_lang_str = sele_item.SubItems[col_idx_lang].Text.ToLower();

			string new_text = (sender as TextBox).Text;
			Hashtable lang_2_help = null;
			if( change_mine )
			{
				FormControl ori_fc = con_fc.find_name_matched(m_origin_help[ con_assem_name.ToLower() ] as ArrayList );
				lang_2_help = ori_fc.ControlName_VS_Lang_Help[con_ctrl_name] as Hashtable;

				//Update UI text
				sele_item.SubItems[col_idx_help_mine].Text = new_text;
			}
			else
			{
				lang_2_help = con_fc.ControlName_VS_Lang_Help[con_ctrl_name] as Hashtable;
				sele_item.SubItems[col_idx_help_others ].Text = new_text;
			}
			lang_2_help[con_lang_str] = new_text;
		}
	}
}