-/**\r
- * Namespace: System.Web.UI.WebControls\r
- * Class: BoundColumn\r
- * \r
- * Author: Gaurav Vaish\r
- * Maintainer: gvaish@iitk.ac.in\r
- * Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>\r
- * Implementation: yes\r
- * Status: 60%\r
- * \r
- * (C) Gaurav Vaish (2001)\r
- */\r
-\r
-using System;\r
-using System.ComponentModel;\r
-using System.Web;\r
-using System.Web.UI;\r
-\r
-namespace System.Web.UI.WebControls\r
-{\r
- public class BoundColumn : DataGridColumn\r
- {\r
- public static readonly string thisExpr = "!";\r
- \r
- private string dataField;\r
- private string dataFormatString;\r
- private bool readOnly;\r
- \r
- private PropertyDescriptor desc;\r
-\r
- public BoundColumn(): base()\r
- {\r
- //TODO: The start work\r
- Initialize();\r
- }\r
- \r
- public override void Initialize()\r
- {\r
- base.Initialize();\r
- dataField = String.Empty;\r
- dataFormatString = String.Empty;\r
- readOnly = false;\r
- desc = null;\r
- }\r
-\r
- [MonoTODO]\r
- public override void InitializeCell(TableCell cell, int columnIndex, ListItemType itemType)\r
- {\r
- //TODO: What to do?\r
- InitializeCell(cell, columnIndex, itemType);\r
-// switch(itemType)\r
-// {\r
-// case \r
-// }\r
- throw new NotImplementedException();\r
- }\r
- \r
- public virtual string DataField\r
- {\r
- get\r
- {\r
- return dataField;\r
- }\r
- set\r
- {\r
- dataField = value;\r
- }\r
- }\r
- \r
- public virtual string DataFormatString\r
- {\r
- get\r
- {\r
- return dataFormatString;\r
- }\r
- set\r
- {\r
- dataFormatString = value;\r
- }\r
- }\r
- \r
- public virtual bool ReadOnly\r
- {\r
- get\r
- {\r
- return readOnly;\r
- }\r
- set\r
- {\r
- readOnly = value;\r
- }\r
- }\r
- \r
- [MonoTODO]\r
- protected virtual string FormatDataValue(Object dataValue)\r
- {\r
- // TODO: How to extract the value from the object?\r
- // TODO: Then format the value. Here's a possible solution\r
- if(dataFormatString == null || dataFormatString.Equals(String.Empty))\r
- return dataValue.ToString();\r
- if(dataValue is DateTime)\r
- return ((DateTime)dataValue).ToString(dataFormatString);\r
- throw new NotImplementedException();\r
- // and so on for int, String, double..\r
- // something's wrong here. there must be some shorter method!\r
- //string val = dataValue.toString(dataFormatString);\r
- }\r
- }\r
-}\r
+//
+// System.Web.UI.WebControls.BoundColumn.cs
+//
+// Authors:
+// Gaurav Vaish (gvaish@iitk.ac.in)
+// Andreas Nahr (ClassDevelopment@A-SoftTech.com)
+//
+// (C) Gaurav Vaish (2002)
+// (C) 2003 Andreas Nahr
+//\r
+
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.ComponentModel;
+using System.Web;
+using System.Web.UI;
+
+namespace System.Web.UI.WebControls
+{
+ public class BoundColumn : DataGridColumn
+ {
+ public static readonly string thisExpr = "!";
+
+ private bool boundFieldDescriptionValid;
+ private string boundField;
+ private string formatting;
+
+ private PropertyDescriptor desc;
+
+ public BoundColumn(): base()
+ {
+ }
+
+ public override void Initialize()
+ {
+ base.Initialize();
+
+ desc = null;
+ boundField = DataField;
+ formatting = DataFormatString;
+ boundFieldDescriptionValid = false;
+ }
+
+ public override void InitializeCell(TableCell cell, int columnIndex, ListItemType itemType)
+ {
+ base.InitializeCell(cell, columnIndex, itemType);
+
+ Control bindCtrl = null;
+ Control toAdd = null;
+ switch(itemType)
+ {
+ case ListItemType.Item : goto case ListItemType.SelectedItem;
+ case ListItemType.AlternatingItem
+ : goto case ListItemType.SelectedItem;
+ case ListItemType.SelectedItem
+ : if(DataField.Length != 0)
+ bindCtrl = cell;
+ break;
+ case ListItemType.EditItem
+ : if(!ReadOnly)
+ {
+ TextBox box = new TextBox();
+ toAdd = box;
+ if(DataField.Length != 0)
+ bindCtrl = box;
+ } else
+ goto case ListItemType.SelectedItem;
+
+ break;
+ }
+ if(toAdd != null)
+ cell.Controls.Add(toAdd);
+ if(bindCtrl != null)
+ bindCtrl.DataBinding += new EventHandler(OnDataBindColumn);
+ //throw new NotImplementedException();
+ }
+
+ private void OnDataBindColumn(object sender, EventArgs e)
+ {
+ Control senderCtrl = (Control)sender;
+ DataGridItem item = (DataGridItem)senderCtrl.NamingContainer;
+ object data = item.DataItem;
+
+ if(!boundFieldDescriptionValid)
+ {
+ if(boundField != BoundColumn.thisExpr)
+ {
+ desc = TypeDescriptor.GetProperties(data).Find(boundField, true);
+ if(desc == null && !DesignMode)
+ {
+ throw new HttpException(
+ HttpRuntime.FormatResourceString("File_Not_Found",
+ boundField));
+ }
+ boundFieldDescriptionValid = true;
+ }
+ }
+ object value = data;
+ string val = String.Empty;
+ if(desc == null && DesignMode)
+ {
+ throw new NotImplementedException();
+ } else
+ {
+ if(desc != null)
+ value = desc.GetValue(data);
+ val = FormatDataValue(value);
+ }
+ if(senderCtrl is TableCell)
+ {
+ if(val.Length == 0)
+ val = " ";
+ ((TableCell)senderCtrl).Text = val;
+ } else
+ {
+ ((TextBox)senderCtrl).Text = val;
+ }
+ }
+
+ [DefaultValue (""), WebCategory ("Misc")]
+ [WebSysDescription ("The field that this column is bound to.")]
+ public virtual string DataField
+ {
+ get
+ {
+ object o = ViewState["DataField"];
+ if(o != null)
+ return (string)o;
+ return String.Empty;
+ }
+ set
+ {
+ ViewState["DataField"] = value;
+ OnColumnChanged();
+ }
+ }
+
+ [DefaultValue (""), WebCategory ("Misc")]
+ [WebSysDescription ("A format string that is applied to the data value.")]
+ public virtual string DataFormatString
+ {
+ get
+ {
+ object o = ViewState["DataFormatString"];
+ if(o != null)
+ return (string)o;
+ return String.Empty;
+ }
+ set
+ {
+ ViewState["DataFormatString"] = value;
+ OnColumnChanged();
+ }
+ }
+
+ [DefaultValue (false), WebCategory ("Misc")]
+ [WebSysDescription ("Determines if the databound field can only be displayed or also edited.")]
+ public virtual bool ReadOnly
+ {
+ get
+ {
+ object o = ViewState["ReadOnly"];
+ if(o != null)
+ return (bool)o;
+ return false;
+ }
+ set
+ {
+ ViewState["ReadOnly"] = value;
+ }
+ }
+
+ protected virtual string FormatDataValue(Object dataValue)
+ {
+ string retVal = String.Empty;
+ if(dataValue != null)
+ {
+ if(formatting.Length == 0)
+ retVal = dataValue.ToString();
+ else
+ retVal = String.Format(formatting, dataValue);
+ }
+ return retVal;
+ }
+ }
+}
projects / mono.git / blobdiff