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//
// System.Web.UI.WebControls.BoundColumn.cs
//
// Author:
// Dick Porter <dick@ximian.com>
//
// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
//
// 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.ComponentModel;
using System.Security.Permissions;
namespace System.Web.UI.WebControls {
// CAS
[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public class BoundColumn : DataGridColumn {
private string data_format_string;
public BoundColumn ()
{
}
public static readonly string thisExpr = "!";
[DefaultValue("")]
[WebSysDescription ("")]
[WebCategory ("Misc")]
public virtual string DataField
{
get {
return ViewState.GetString ("DataField", String.Empty);
}
set {
ViewState ["DataField"] = value;
}
}
[DefaultValue("")]
[WebSysDescription ("")]
[WebCategory ("Misc")]
public virtual string DataFormatString
{
get {
return ViewState.GetString ("DataFormatString", String.Empty);
}
set {
ViewState ["DataFormatString"] = value;
}
}
[DefaultValue(false)]
[WebSysDescription ("")]
[WebCategory ("Misc")]
public virtual bool ReadOnly
{
get {
return ViewState.GetBool ("ReadOnly", false);
}
set {
ViewState ["ReadOnly"] = value;
}
}
public override void Initialize ()
{
data_format_string = DataFormatString;
}
public override void InitializeCell (TableCell cell, int columnIndex,
ListItemType itemType)
{
base.InitializeCell (cell, columnIndex, itemType);
switch (itemType) {
case ListItemType.Item:
case ListItemType.SelectedItem:
case ListItemType.AlternatingItem:
cell.DataBinding += new EventHandler (ItemDataBinding);
break;
case ListItemType.EditItem:
if (ReadOnly) {
cell.DataBinding += new EventHandler (ItemDataBinding);
break;
}
string df = DataField;
TextBox tb = new TextBox ();
if (df != null && df != "")
tb.DataBinding += new EventHandler (ItemDataBinding);
cell.Controls.Add (tb);
break;
}
}
protected virtual string FormatDataValue (object dataValue)
{
if (dataValue == null)
return "";
if (data_format_string == String.Empty)
return dataValue.ToString ();
return String.Format (data_format_string, dataValue);
}
string GetValueFromItem (DataGridItem item)
{
object val;
if (DataField != thisExpr) {
val = DataBinder.Eval (item.DataItem, DataField);
} else {
val = item.DataItem;
}
string text = FormatDataValue (val);
return (text != "" ? text : " ");
}
void ItemDataBinding (object sender, EventArgs e)
{
Control ctrl = (Control) sender;
string text = GetValueFromItem ((DataGridItem) ctrl.NamingContainer);
TableCell cell = sender as TableCell;
if (cell == null) {
TextBox tb = (TextBox) sender;
tb.Text = text;
} else {
cell.Text = text;
}
}
}
}
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