mcs/class/System.Web/System.Web.UI/DataBoundLiteralControl.cs

   1 //
   2 // System.Web.UI.DataBoundLiteralCOntrol.cs
   3 //
   4 // Authors:
   5 //      Duncan Mak  (duncan@ximian.com)
   6 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   7 //
   8 // (C) 2002 Ximian, Inc. (http://www.ximian.com)
   9 //
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System;
  33 using System.ComponentModel;
  34 using System.Text;
  35
  36 namespace System.Web.UI {
  37
  38         [ToolboxItem(false)]
  39         public sealed class DataBoundLiteralControl : Control
  40         {
  41                 private string [] staticLiterals;
  42                 private string [] dataBoundLiterals;
  43
  44                 public DataBoundLiteralControl (int staticLiteralsCount,
  45                                                 int dataBoundLiteralCount)
  46                 {
  47                         staticLiterals = new string [staticLiteralsCount];
  48                         dataBoundLiterals = new string [dataBoundLiteralCount];
  49                         PreventAutoID ();
  50                 }
  51
  52                 public string Text {
  53                         get {
  54                                 StringBuilder text = new StringBuilder ();
  55                                 int stLength = staticLiterals.Length;
  56                                 int dbLength = dataBoundLiterals.Length;
  57                                 int max = (stLength > dbLength) ? stLength : dbLength;
  58                                 for (int i = 0; i < max; i++){
  59                                         if (i < stLength)
  60                                                 text.Append (staticLiterals [i]);
  61                                         if (i < dbLength)
  62                                                 text.Append (dataBoundLiterals [i]);
  63                                 }
  64
  65                                 return text.ToString ();
  66                         }
  67                 }
  68
  69                 protected override ControlCollection CreateControlCollection ()
  70                 {
  71                         return new EmptyControlCollection (this);
  72                 }
  73
  74                 protected override void LoadViewState (object savedState)
  75                 {
  76                         if (savedState != null) {
  77                                 Array source = (Array) savedState;
  78                                 if (source.Length == dataBoundLiterals.Length)
  79                                         source.CopyTo (dataBoundLiterals, 0);
  80                         }
  81                 }
  82
  83                 protected override void Render (HtmlTextWriter output)
  84                 {
  85                         output.Write (Text);
  86                 }
  87
  88                 protected override object SaveViewState ()
  89                 {
  90                         if (dataBoundLiterals.Length == 0)
  91                                 return null;
  92                         return dataBoundLiterals;
  93                 }
  94
  95                 public void SetDataBoundString (int index, string s)
  96                 {
  97                         dataBoundLiterals [index] = s;
  98                 }
  99
 100                 public void SetStaticString (int index, string s)
 101                 {
 102                         staticLiterals [index] = s;
 103                 }
 104         }
 105 }
 106