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

   1 //
   2 // System.Web.UI.WebControls.TemplateColumn.cs
   3 //
   4 // Authors:
   5 //   Gaurav Vaish (gvaish@iitk.ac.in)
   6 //   Andreas Nahr (ClassDevelopment@A-SoftTech.com)
   7 //
   8 // (C) Gaurav Vaish (2002)
   9 // (C) 2003 Andreas Nahr
  10 //\r
  11 \r
  12 \r
  13 using System;
  14 using System.ComponentModel;\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 class TemplateColumn : DataGridColumn\r
  21         {\r
  22                 private ITemplate editItemTemplate;\r
  23                 private ITemplate footerTemplate;\r
  24                 private ITemplate headerTemplate;\r
  25                 private ITemplate itemTemplate;\r
  26 \r
  27                 public TemplateColumn(): base()\r
  28                 {\r
  29                 }\r
  30
  31                 [DefaultValue (null), Browsable (false)]
  32                 [PersistenceMode (PersistenceMode.InnerProperty), TemplateContainer (typeof (DataGridItem))]
  33                 [WebSysDescription ("The template that is used to build that are being edited rows for this column.")]\r
  34                 public virtual ITemplate EditItemTemplate\r
  35                 {\r
  36                         get\r
  37                         {\r
  38                                 return editItemTemplate;\r
  39                         }\r
  40                         set\r
  41                         {\r
  42                                 editItemTemplate = value;\r
  43                                 OnColumnChanged();\r
  44                         }\r
  45                 }\r
  46
  47                 [DefaultValue (null), Browsable (false)]
  48                 [PersistenceMode (PersistenceMode.InnerProperty), TemplateContainer (typeof (DataGridItem))]
  49                 [WebSysDescription ("The template that is used to build the footer for this column.")]\r
  50                 public virtual ITemplate FooterTemplate\r
  51                 {\r
  52                         get\r
  53                         {\r
  54                                 return footerTemplate;\r
  55                         }\r
  56                         set\r
  57                         {\r
  58                                 footerTemplate = value;\r
  59                                 OnColumnChanged();\r
  60                         }\r
  61                 }\r
  62
  63                 [DefaultValue (null), Browsable (false)]
  64                 [PersistenceMode (PersistenceMode.InnerProperty), TemplateContainer (typeof (DataGridItem))]
  65                 [WebSysDescription ("The template that is used to build the header for this column.")]\r
  66                 public virtual ITemplate HeaderTemplate\r
  67                 {\r
  68                         get\r
  69                         {\r
  70                                 return headerTemplate;\r
  71                         }\r
  72                         set\r
  73                         {\r
  74                                 headerTemplate = value;\r
  75                                 OnColumnChanged();\r
  76                         }\r
  77                 }\r
  78
  79                 [DefaultValue (null), Browsable (false)]
  80                 [PersistenceMode (PersistenceMode.InnerProperty), TemplateContainer (typeof (DataGridItem))]
  81                 [WebSysDescription ("The template that is used to build rows for this column.")]\r
  82                 public virtual ITemplate ItemTemplate\r
  83                 {\r
  84                         get\r
  85                         {\r
  86                                 return itemTemplate;\r
  87                         }\r
  88                         set\r
  89                         {\r
  90                                 itemTemplate = value;\r
  91                                 OnColumnChanged();\r
  92                         }\r
  93                 }\r
  94 \r
  95                 public override void InitializeCell(TableCell cell, int columnIndex, ListItemType itemType)\r
  96                 {\r
  97                         base.InitializeCell(cell, columnIndex, itemType);\r
  98                         ITemplate toRender = null;\r
  99                         switch(itemType)\r
 100                         {\r
 101                                 case ListItemType.Header: toRender = headerTemplate;\r
 102                                                           break;\r
 103                                 case ListItemType.Footer: toRender = footerTemplate;\r
 104                                                           break;\r
 105                                 case ListItemType.SelectedItem:
 106                                 case ListItemType.AlternatingItem:
 107                                 case ListItemType.Item:   toRender = itemTemplate;\r
 108                                                           break;
 109                                 case ListItemType.EditItem:
 110                                         toRender = (editItemTemplate != null ? editItemTemplate : itemTemplate);\r
 111                                                           break;\r
 112                         }\r
 113                         if(toRender != null)\r
 114                         {\r
 115                                 cell.Text = String.Empty;\r
 116                                 toRender.InstantiateIn(cell);\r
 117                         }\r
 118                 }\r
 119         }\r
 120 }\r