mcs/class/System.Web/System.Web.UI.WebControls/DataGridPagerStyle.cs

   1 /**\r
   2  * Namespace: System.Web.UI.WebControls\r
   3  * Class:     DataGridPagerStyle\r
   4  *\r
   5  * Author:  Gaurav Vaish\r
   6  * Maintainer: gvaish@iitk.ac.in\r
   7  * Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>\r
   8  * Implementation: yes\r
   9  * Status:  100%\r
  10  *\r
  11  * (C) Gaurav Vaish (2002)\r
  12  */\r
  13 \r
  14 using System;\r
  15 using System.Web;\r
  16 using System.Web.UI;\r
  17 \r
  18 namespace System.Web.UI.WebControls\r
  19 {\r
  20         public sealed class DataGridPagerStyle : TableItemStyle\r
  21         {\r
  22                 DataGrid owner;\r
  23 \r
  24                 private static int MODE         = (0x01 << 19);\r
  25                 private static int NEXT_PG_TEXT = (0x01 << 20);\r
  26                 private static int PG_BTN_COUNT = (0x01 << 21);\r
  27                 private static int POSITION     = (0x01 << 22);\r
  28                 private static int VISIBLE      = (0x01 << 23);\r
  29                 private static int PREV_PG_TEXT = (0x01 << 24);\r
  30 \r
  31                 internal DataGridPagerStyle(DataGrid owner): base()\r
  32                 {\r
  33                         this.owner = owner;\r
  34                 }\r
  35 \r
  36                 internal bool IsPagerOnTop\r
  37                 {\r
  38                         get {\r
  39                                 PagerPosition p = Position;\r
  40                                 return (p == PagerPosition.Top || p == PagerPosition.TopAndBottom);\r
  41                         }\r
  42                 }\r
  43                 \r
  44                 internal bool IsPagerOnBottom\r
  45                 {\r
  46                         get {\r
  47                                 PagerPosition p = Position;\r
  48                                 return (p == PagerPosition.Bottom || p == PagerPosition.TopAndBottom);\r
  49                         }\r
  50                 }\r
  51                 \r
  52                 public PagerMode Mode\r
  53                 {\r
  54                         get\r
  55                         {\r
  56                                 if(IsSet(MODE))\r
  57                                 {\r
  58                                         return (PagerMode)ViewState["Mode"];\r
  59                                 }\r
  60                                 return PagerMode.NextPrev;\r
  61                         }\r
  62                         set\r
  63                         {\r
  64                                 if(!Enum.IsDefined(typeof(PagerMode), value))\r
  65                                 {\r
  66                                         throw new NotImplementedException();\r
  67                                 }\r
  68                                 ViewState["Mode"] = value;\r
  69                                 Set(MODE);\r
  70                         }\r
  71                 }\r
  72 \r
  73                 public string NextPageText\r
  74                 {\r
  75                         get\r
  76                         {\r
  77                                 if(IsSet(NEXT_PG_TEXT))\r
  78                                 {\r
  79                                         return (string)ViewState["NextPageText"];\r
  80                                 }\r
  81                                 return "&gt;";\r
  82                         }\r
  83                         set\r
  84                         {\r
  85                                 ViewState["NextPageText"] = value;\r
  86                                 Set(NEXT_PG_TEXT);\r
  87                         }\r
  88                 }\r
  89 \r
  90                 public string PrevPageText\r
  91                 {\r
  92                         get\r
  93                         {\r
  94                                 if(IsSet(PREV_PG_TEXT))\r
  95                                 {\r
  96                                         return (string)ViewState["PrevPageText"];\r
  97                                 }\r
  98                                 return "&lt;";\r
  99                         }\r
 100                         set\r
 101                         {\r
 102                                 ViewState["PrevPageText"] = value;\r
 103                                 Set(PREV_PG_TEXT);\r
 104                         }\r
 105                 }\r
 106 \r
 107                 public int PageButtonCount\r
 108                 {\r
 109                         get\r
 110                         {\r
 111                                 if(IsSet(PG_BTN_COUNT))\r
 112                                 {\r
 113                                         return (int)ViewState["PageButtonCount"];\r
 114                                 }\r
 115                                 return 10;\r
 116                         }\r
 117                         set\r
 118                         {\r
 119                                 ViewState["PageButtonCount"] = value;\r
 120                                 Set(PG_BTN_COUNT);\r
 121                         }\r
 122                 }\r
 123 \r
 124                 public PagerPosition Position\r
 125                 {\r
 126                         get\r
 127                         {\r
 128                                 if(IsSet(POSITION))\r
 129                                 {\r
 130                                         return (PagerPosition)ViewState["Position"];\r
 131                                 }\r
 132                                 return PagerPosition.Bottom;\r
 133                         }\r
 134                         set\r
 135                         {\r
 136                                 if(!Enum.IsDefined(typeof(PagerPosition), value))\r
 137                                 {\r
 138                                         throw new ArgumentException();\r
 139                                 }\r
 140                                 ViewState["Position"] = value;\r
 141                                 Set(POSITION);\r
 142                         }\r
 143                 }\r
 144 \r
 145                 public bool Visible\r
 146                 {\r
 147                         get\r
 148                         {\r
 149                                 if(IsSet(VISIBLE))\r
 150                                 {\r
 151                                         return (bool)ViewState["Visible"];\r
 152                                 }\r
 153                                 return true;\r
 154                         }\r
 155                         set\r
 156                         {\r
 157                                 ViewState["Visible"] = value;\r
 158                                 Set(PG_BTN_COUNT);\r
 159                         }\r
 160                 }\r
 161 \r
 162                 public override void CopyFrom(Style s)\r
 163                 {\r
 164                         if(s != null && !s.IsEmpty && s is DataGridPagerStyle)\r
 165                         {\r
 166                                 base.CopyFrom(s);\r
 167                                 DataGridPagerStyle from = (DataGridPagerStyle)s;\r
 168                                 if(from.IsSet(MODE))\r
 169                                 {\r
 170                                         Mode = from.Mode;\r
 171                                 }\r
 172                                 if(from.IsSet(NEXT_PG_TEXT))\r
 173                                 {\r
 174                                         NextPageText = from.NextPageText;\r
 175                                 }\r
 176                                 if(from.IsSet(PG_BTN_COUNT))\r
 177                                 {\r
 178                                         PageButtonCount = from.PageButtonCount;\r
 179                                 }\r
 180                                 if(from.IsSet(POSITION))\r
 181                                 {\r
 182                                         Position = from.Position;\r
 183                                 }\r
 184                                 if(from.IsSet(VISIBLE))\r
 185                                 {\r
 186                                         Visible = from.Visible;\r
 187                                 }\r
 188                                 if(from.IsSet(PREV_PG_TEXT))\r
 189                                 {\r
 190                                         PrevPageText = from.PrevPageText;\r
 191                                 }\r
 192                         }\r
 193                 }\r
 194 \r
 195                 public override void MergeWith(Style s)\r
 196                 {\r
 197                         if(s != null && !s.IsEmpty && s is DataGridPagerStyle)\r
 198                         {\r
 199                                 base.MergeWith(s);\r
 200                                 DataGridPagerStyle with = (DataGridPagerStyle)s;\r
 201                                 if(with.IsSet(MODE) && !IsSet(MODE))\r
 202                                 {\r
 203                                         Mode = with.Mode;\r
 204                                 }\r
 205                                 if(with.IsSet(NEXT_PG_TEXT) && !IsSet(NEXT_PG_TEXT))\r
 206                                 {\r
 207                                         NextPageText = with.NextPageText;\r
 208                                 }\r
 209                                 if(with.IsSet(PG_BTN_COUNT) && !IsSet(PG_BTN_COUNT))\r
 210                                 {\r
 211                                         PageButtonCount = with.PageButtonCount;\r
 212                                 }\r
 213                                 if(with.IsSet(POSITION) && !IsSet(POSITION))\r
 214                                 {\r
 215                                         Position = with.Position;\r
 216                                 }\r
 217                                 if(with.IsSet(VISIBLE) && !IsSet(VISIBLE))\r
 218                                 {\r
 219                                         Visible = with.Visible;\r
 220                                 }\r
 221                                 if(with.IsSet(PREV_PG_TEXT) && !IsSet(PREV_PG_TEXT))\r
 222                                 {\r
 223                                         PrevPageText = with.PrevPageText;\r
 224                                 }\r
 225                         }\r
 226                 }\r
 227 \r
 228                 public override void Reset()\r
 229                 {\r
 230                         if(IsSet(MODE))\r
 231                         {\r
 232                                 ViewState.Remove("Mode");\r
 233                         }\r
 234                         if(IsSet(NEXT_PG_TEXT))\r
 235                         {\r
 236                                 ViewState.Remove("NextPageText");\r
 237                         }\r
 238                         if(IsSet(PG_BTN_COUNT))\r
 239                         {\r
 240                                 ViewState.Remove("PageButtonCount");\r
 241                         }\r
 242                         if(IsSet(POSITION))\r
 243                         {\r
 244                                 ViewState.Remove("Position");\r
 245                         }\r
 246                         if(IsSet(VISIBLE))\r
 247                         {\r
 248                                 ViewState.Remove("Visible");\r
 249                         }\r
 250                         if(IsSet(PREV_PG_TEXT))\r
 251                         {\r
 252                                 ViewState.Remove("PrevPageText");\r
 253                         }\r
 254                         base.Reset();\r
 255                 }\r
 256         }\r
 257 }\r