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

   1 //\r
   2 // System.Web.UI.WebControls.DataControlButton.cs\r
   3 //\r
   4 // Authors:\r
   5 //      Lluis Sanchez Gual (lluis@novell.com)\r
   6 //\r
   7 // (C) 2005 Novell, Inc (http://www.novell.com)\r
   8 //\r
   9 // Permission is hereby granted, free of charge, to any person obtaining\r
  10 // a copy of this software and associated documentation files (the\r
  11 // "Software"), to deal in the Software without restriction, including\r
  12 // without limitation the rights to use, copy, modify, merge, publish,\r
  13 // distribute, sublicense, and/or sell copies of the Software, and to\r
  14 // permit persons to whom the Software is furnished to do so, subject to\r
  15 // the following conditions:\r
  16 // \r
  17 // The above copyright notice and this permission notice shall be\r
  18 // included in all copies or substantial portions of the Software.\r
  19 // \r
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,\r
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\r
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND\r
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE\r
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION\r
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION\r
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
  27 //\r
  28 \r
  29 #if NET_2_0\r
  30 \r
  31 using System;\r
  32 using System.Web;\r
  33 using System.Web.UI;\r
  34 using System.ComponentModel;
  35 using System.ComponentModel.Design;\r
  36 \r
  37 namespace System.Web.UI.WebControls\r
  38 {\r
  39         internal class DataControlButton: Button\r
  40         {\r
  41                 Control container;\r
  42                 \r
  43                 public DataControlButton (Control container)\r
  44                 {\r
  45                         this.container = container;\r
  46                 }\r
  47                 \r
  48                 public DataControlButton (Control container, string text, string image, string command, string commandArg, bool allowCallback)\r
  49                 {\r
  50                         this.container = container;\r
  51                         Text = text;\r
  52                         ImageUrl = image;\r
  53                         CommandName = command;\r
  54                         CommandArgument = commandArg;\r
  55                         AllowCallback = allowCallback;\r
  56                 }\r
  57                 \r
  58                 public string ImageUrl {\r
  59                         get {\r
  60                                 object o = ViewState["iu"];\r
  61                                 if (o != null) return (string) o;\r
  62                                 return String.Empty;\r
  63                         }\r
  64                         set {\r
  65                                 ViewState["iu"] = value;\r
  66                         }\r
  67                 }\r
  68                 \r
  69                 public bool AllowCallback {\r
  70                         get {\r
  71                                 object o = ViewState["ac"];\r
  72                                 if (o != null) return (bool) o;\r
  73                                 return true;\r
  74                         }\r
  75                         set {\r
  76                                 ViewState["ac"] = value;\r
  77                         }\r
  78                 }\r
  79                 \r
  80                 public virtual ButtonType ButtonType {
  81                         get {
  82                                 object ob = ViewState ["ButtonType"];
  83                                 if (ob != null) return (ButtonType) ob;
  84                                 return ButtonType.Link;
  85                         }
  86                         set {
  87                                 ViewState ["ButtonType"] = value;
  88                         }
  89                 }
  90
  91                 protected override void Render (HtmlTextWriter writer)\r
  92                 {\r
  93                         if (CommandName.Length > 0 || ButtonType == ButtonType.Button)\r
  94                         {\r
  95                                 string postScript = null;\r
  96                                 string callScript = null;\r
  97                                 \r
  98                                 IPostBackContainer pcner = container as IPostBackContainer;
  99                                 if (pcner != null) {\r
 100                                         PostBackOptions ops = pcner.GetPostBackOptions (this);\r
 101                                         postScript = container.Page.ClientScript.GetPostBackEventReference (ops);\r
 102                                 } else\r
 103                                         postScript = Page.ClientScript.GetPostBackClientEvent (this, "");\r
 104 \r
 105                                 if (CausesValidation && Page.Validators.Count > 0) {\r
 106                                         postScript = Utils.GetClientValidatedEvent (Page) + postScript;\r
 107                                 }\r
 108                                 \r
 109                                 if (AllowCallback) {\r
 110                                         ICallbackContainer ccner = container as ICallbackContainer;\r
 111                                         if (ccner != null)\r
 112                                                 callScript = ccner.GetCallbackScript (this, CommandName + "$" + CommandArgument);\r
 113                                 }\r
 114
 115                                 if (ButtonType == ButtonType.Link || ButtonType == ButtonType.Image)
 116                                 {\r
 117                                         if (ImageUrl.Length > 0) {\r
 118                                                 writer.AddAttribute (HtmlTextWriterAttribute.Type, "image");\r
 119                                                 writer.AddAttribute (HtmlTextWriterAttribute.Src, ResolveUrl (ImageUrl));\r
 120                                                 if (callScript != null)\r
 121                                                         writer.AddAttribute (HtmlTextWriterAttribute.Onclick, callScript);\r
 122                                                 else\r
 123                                                         writer.AddAttribute (HtmlTextWriterAttribute.Onclick, postScript);\r
 124                                                 if (Text.Length > 0)\r
 125                                                         writer.AddAttribute (HtmlTextWriterAttribute.Alt, Text);\r
 126                                                 writer.RenderBeginTag (HtmlTextWriterTag.Input);\r
 127                                                 writer.RenderEndTag ();\r
 128                                         }\r
 129                                         else {\r
 130                                                 if (callScript != null) {\r
 131                                                         writer.AddAttribute (HtmlTextWriterAttribute.Onclick, callScript);\r
 132                                                         writer.AddAttribute (HtmlTextWriterAttribute.Href, "javascript:");\r
 133                                                 }\r
 134                                                 else\r
 135                                                         writer.AddAttribute (HtmlTextWriterAttribute.Href, postScript);\r
 136                                                 writer.RenderBeginTag (HtmlTextWriterTag.A);\r
 137                                                 writer.Write (Text);\r
 138                                                 writer.RenderEndTag ();\r
 139                                         }
 140                                 }
 141                                 else if (ButtonType == ButtonType.Button)
 142                                 {
 143                                         if (callScript != null)\r
 144                                                 writer.AddAttribute (HtmlTextWriterAttribute.Onclick, callScript);\r
 145                                         else\r
 146                                                 writer.AddAttribute (HtmlTextWriterAttribute.Onclick, postScript);
 147                                                 \r
 148                                         writer.AddAttribute (HtmlTextWriterAttribute.Type, "submit");\r
 149                                         writer.AddAttribute (HtmlTextWriterAttribute.Name, ClientID);\r
 150                                         writer.AddAttribute (HtmlTextWriterAttribute.Value, Text);\r
 151                                         writer.RenderBeginTag (HtmlTextWriterTag.Input);\r
 152                                         writer.RenderEndTag ();\r
 153                                 }\r
 154                         } else {\r
 155                                 if (ImageUrl.Length > 0) {\r
 156                                         writer.AddAttribute (HtmlTextWriterAttribute.Src, ResolveUrl (ImageUrl));\r
 157                                         if (Text.Length > 0)\r
 158                                                 writer.AddAttribute (HtmlTextWriterAttribute.Alt, Text);\r
 159                                         writer.RenderBeginTag (HtmlTextWriterTag.Img);\r
 160                                         writer.RenderEndTag ();\r
 161                                 }\r
 162                                 else {\r
 163                                         writer.Write (Text);\r
 164                                 }
 165                         }\r
 166                 }\r
 167         }\r
 168 }\r
 169 \r
 170 #endif\r