mcs/class/Managed.Windows.Forms/System.Windows.Forms/ListViewGroup.cs

   1 //
   2 //  ListViewGroup.cs
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining
   5 // a copy of this software and associated documentation files (the
   6 // "Software"), to deal in the Software without restriction, including
   7 // without limitation the rights to use, copy, modify, merge, publish,
   8 // distribute, sublicense, and/or sell copies of the Software, and to
   9 // permit persons to whom the Software is furnished to do so, subject to
  10 // the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be
  13 // included in all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22 //
  23 // Copyright (c) 2006 Daniel Nauck
  24 //
  25 // Author:
  26 //      Daniel Nauck            (dna(at)mono-project(dot)de)
  27
  28 #if NET_2_0
  29
  30 using System;
  31 using System.Text;
  32 using System.Runtime.Serialization;
  33 using System.ComponentModel;
  34
  35 namespace System.Windows.Forms
  36 {
  37         [SerializableAttribute]
  38         [ToolboxItem(false)]
  39         [DesignTimeVisible(false)]
  40         [DefaultProperty("Header")]
  41         public sealed class ListViewGroup : ISerializable
  42         {
  43                 private string header = string.Empty;
  44                 private string name = null;
  45                 private HorizontalAlignment header_alignment = HorizontalAlignment.Left;
  46                 private ListView list_view_owner = null;
  47                 private ListView.ListViewItemCollection items = null;
  48                 private object tag = null;
  49
  50                 #region ListViewGroup constructors
  51
  52                 public ListViewGroup()
  53                 {
  54                         header = "ListViewGroup";
  55                         header_alignment = HorizontalAlignment.Left;
  56                 }
  57
  58                 public ListViewGroup(string header)
  59                 {
  60                         this.header = header;
  61                         header_alignment = HorizontalAlignment.Left;
  62                 }
  63
  64                 public ListViewGroup(string key, string headerText)
  65                 {
  66                         header = headerText;
  67                         name = key;
  68                         header_alignment = HorizontalAlignment.Left;
  69                 }
  70
  71                 public ListViewGroup(string header, HorizontalAlignment headerAlignment)
  72                 {
  73                         this.header = header;
  74                         header_alignment = headerAlignment;
  75                 }
  76
  77                 private ListViewGroup(SerializationInfo info, StreamingContext context)
  78                 {
  79                         header = info.GetString("Header");
  80                         name = info.GetString("Name");
  81                         header_alignment = (HorizontalAlignment)info.GetInt32("HeaderAlignment");
  82                         tag = info.GetValue("Tag", typeof(object));
  83
  84                         int count = info.GetInt32("ListViewItemCount");
  85                         if (count > 0) {
  86                                 if(items == null)
  87                                 items = new ListView.ListViewItemCollection(list_view_owner);
  88
  89                                 for (int i = 0; i < count; i++)
  90                                 {
  91                                         items.Add((ListViewItem)info.GetValue(string.Format("ListViewItem_{0}", i), typeof(ListViewItem)));
  92                                 }
  93                         }
  94                 }
  95
  96                 #endregion
  97
  98                 #region ListViewGroup properties
  99
 100                 public string Header {
 101                         get { return header; }
 102                         set {
 103                                 if (!header.Equals(value)) {
 104                                         header = value;
 105
 106                                         if (list_view_owner != null)
 107                                                 list_view_owner.Redraw(true);
 108                                 }
 109                         }
 110                 }
 111
 112                 [DefaultValue (HorizontalAlignment.Left)]
 113                 public HorizontalAlignment HeaderAlignment {
 114                         get { return header_alignment; }
 115                         set {
 116                                 if (!header_alignment.Equals(value)) {
 117                                         if (value != HorizontalAlignment.Left && value != HorizontalAlignment.Right &&
 118                                                 value != HorizontalAlignment.Center)
 119                                                 throw new InvalidEnumArgumentException("HeaderAlignment", (int)value, typeof(HorizontalAlignment));
 120
 121                                         header_alignment = value;
 122
 123                                         if (list_view_owner != null)
 124                                                 list_view_owner.Redraw(true);
 125                                 }
 126                         }
 127                 }
 128
 129                 [Browsable(false)]
 130                 public ListView.ListViewItemCollection Items {
 131                         get {
 132                                 if (items == null)
 133                                         items = new ListView.ListViewItemCollection(list_view_owner);
 134
 135                                 return items;
 136                         }
 137                 }
 138
 139                 [DesignerSerializationVisibility(0)]
 140                 [Browsable(false)]
 141                 public ListView ListView {
 142                         get { return list_view_owner; }
 143                 }
 144
 145                 internal ListView ListViewOwner {
 146                         get { return list_view_owner; }
 147                         set { list_view_owner = value; }
 148                 }
 149
 150                 [Browsable(true)]
 151                 [DefaultValue("")]
 152                 public string Name {
 153                         get { return name; }
 154                         set { name = value; }
 155                 }
 156
 157                 [TypeConverter(typeof(StringConverter))]
 158                 [DefaultValue(null)]
 159                 [Localizable(false)]
 160                 [Bindable(true)]
 161                 public Object Tag {
 162                         get { return tag; }
 163                         set { tag = value; }
 164                 }
 165
 166                 #endregion
 167
 168                 public override string ToString()
 169                 {
 170                         return header;
 171                 }
 172
 173                 #region ISerializable Members
 174
 175                 public void GetObjectData(SerializationInfo info, StreamingContext context)
 176                 {
 177                         info.AddValue("Header", header);
 178                         info.AddValue("Name", name);
 179                         info.AddValue("HeaderAlignment", header_alignment);
 180                         info.AddValue("Tag", tag);
 181
 182                         info.AddValue("ListViewItemCount", items.Count);
 183
 184                         int i = 0;
 185                         foreach (ListViewItem item in items)
 186                         {
 187                                 info.AddValue(string.Format("ListViewItem_{0}", i), item);
 188                                 i++;
 189                         }
 190                 }
 191
 192                 #endregion
 193         }
 194 }
 195 #endif