MonoRail/TestSiteNVelocity/Components/GridComponent.cs

   1 // Copyright 2004-2007 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 namespace TestSiteNVelocity.Components
  16 {
  17         using System;
  18         using System.Collections;
  19
  20         using Castle.MonoRail.Framework;
  21
  22         public class GridComponent : ViewComponent
  23         {
  24                 public override bool SupportsSection(String name)
  25                 {
  26                         return name == "tablestart" || name == "tableend" ||
  27                                 name == "header" || name == "item" || name == "footer" ||
  28                                 name == "empty";
  29                 }
  30
  31                 public override void Render()
  32                 {
  33                         ICollection source = (ICollection) ComponentParams["source"];
  34
  35                         StartTable();
  36
  37                         Context.RenderSection("header");
  38
  39                         if (source != null && source.Count != 0)
  40                         {
  41                                 foreach(object item in source)
  42                                 {
  43                                         PropertyBag["item"] = item;
  44
  45                                         RenderText("<tr>");
  46
  47                                         Context.RenderSection("item");
  48
  49                                         RenderText("</tr>");
  50                                 }
  51                         }
  52                         else
  53                         {
  54                                 RenderText("<tr>");
  55                                 Context.RenderSection("empty");
  56                                 RenderText("</tr>");
  57                         }
  58
  59                         Context.RenderSection("footer");
  60
  61                         EndTable();
  62                 }
  63
  64                 private void StartTable()
  65                 {
  66                         if (Context.HasSection("tablestart"))
  67                         {
  68                                 Context.RenderSection("tablestart");
  69                         }
  70                         else
  71                         {
  72                                 RenderText("<table>");
  73                         }
  74                 }
  75
  76                 private void EndTable()
  77                 {
  78                         if (Context.HasSection("tableend"))
  79                         {
  80                                 Context.RenderSection("tableend");
  81                         }
  82                         else
  83                         {
  84                                 RenderText("</table>");
  85                         }
  86                 }
  87         }
  88 }