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//
// System.Web.UI.WebControls.TemplateField.cs
//
// Authors:
// Lluis Sanchez Gual (lluis@novell.com)
//
// (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.Collections;
using System.Collections.Specialized;
using System.Web.UI;
using System.Security.Permissions;
using System.ComponentModel;
namespace System.Web.UI.WebControls
{
[AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public class TemplateField : DataControlField
{
ITemplate alternatingItemTemplate;
ITemplate editItemTemplate;
ITemplate footerTemplate;
ITemplate headerTemplate;
ITemplate insertItemTemplate;
ITemplate itemTemplate;
[DefaultValue (null)]
[TemplateContainer (typeof(IDataItemContainer), BindingDirection.TwoWay)]
[PersistenceMode (PersistenceMode.InnerProperty)]
[Browsable (false)]
public virtual ITemplate AlternatingItemTemplate {
get { return alternatingItemTemplate; }
set { alternatingItemTemplate = value; OnFieldChanged (); }
}
[DefaultValueAttribute (true)]
[WebCategoryAttribute ("Behavior")]
public virtual bool ConvertEmptyStringToNull {
get {
object ob = ViewState ["ConvertEmptyStringToNull"];
if (ob != null) return (bool) ob;
return true;
}
set {
ViewState ["ConvertEmptyStringToNull"] = value;
OnFieldChanged ();
}
}
[DefaultValue (null)]
[TemplateContainer (typeof(IDataItemContainer), BindingDirection.TwoWay)]
[PersistenceMode (PersistenceMode.InnerProperty)]
[Browsable (false)]
public virtual ITemplate EditItemTemplate {
get { return editItemTemplate; }
set { editItemTemplate = value; OnFieldChanged (); }
}
[DefaultValue (null)]
[TemplateContainer (typeof(IDataItemContainer), BindingDirection.OneWay)]
[PersistenceMode (PersistenceMode.InnerProperty)]
[Browsable (false)]
public virtual ITemplate FooterTemplate {
get { return footerTemplate; }
set { footerTemplate = value; OnFieldChanged (); }
}
[DefaultValue (null)]
[TemplateContainer (typeof(IDataItemContainer), BindingDirection.OneWay)]
[PersistenceMode (PersistenceMode.InnerProperty)]
[Browsable (false)]
public virtual ITemplate HeaderTemplate {
get { return headerTemplate; }
set { headerTemplate = value; OnFieldChanged (); }
}
[DefaultValue (null)]
[TemplateContainer (typeof(IDataItemContainer), BindingDirection.TwoWay)]
[PersistenceMode (PersistenceMode.InnerProperty)]
[Browsable (false)]
public virtual ITemplate InsertItemTemplate {
get { return insertItemTemplate; }
set { insertItemTemplate = value; OnFieldChanged (); }
}
[DefaultValue (null)]
[TemplateContainer (typeof(IDataItemContainer), BindingDirection.TwoWay)]
[PersistenceMode (PersistenceMode.InnerProperty)]
[Browsable (false)]
public virtual ITemplate ItemTemplate {
get { return itemTemplate; }
set { itemTemplate = value; OnFieldChanged (); }
}
public override void InitializeCell (DataControlFieldCell cell,
DataControlCellType cellType, DataControlRowState rowState, int rowIndex)
{
base.InitializeCell (cell, cellType, rowState, rowIndex);
if (cellType == DataControlCellType.Header) {
if (headerTemplate != null && ShowHeader) {
cell.Text = String.Empty;
headerTemplate.InstantiateIn (cell);
}
} else if (cellType == DataControlCellType.Footer) {
if (footerTemplate != null) {
cell.Text = String.Empty;
footerTemplate.InstantiateIn (cell);
}
} else {
cell.Text = String.Empty;
if ((rowState & DataControlRowState.Insert) != 0 &&
insertItemTemplate != null) {
insertItemTemplate.InstantiateIn (cell);
}
else if ((rowState & DataControlRowState.Edit) != 0 &&
editItemTemplate != null) {
editItemTemplate.InstantiateIn (cell);
}
else if ((rowState & DataControlRowState.Alternate) != 0 &&
alternatingItemTemplate != null) {
alternatingItemTemplate.InstantiateIn (cell);
}
else if (itemTemplate != null) {
itemTemplate.InstantiateIn (cell);
}
else
cell.Text = " ";
}
}
public override void ExtractValuesFromCell (IOrderedDictionary dictionary,
DataControlFieldCell cell, DataControlRowState rowState, bool includeReadOnly)
{
IBindableTemplate bt;
if ((rowState & DataControlRowState.Insert) != 0)
bt = insertItemTemplate as IBindableTemplate;
else if ((rowState & DataControlRowState.Edit) != 0)
bt = editItemTemplate as IBindableTemplate;
else if (alternatingItemTemplate !=null && (rowState & DataControlRowState.Alternate) != 0)
bt = alternatingItemTemplate as IBindableTemplate;
else
bt = itemTemplate as IBindableTemplate;
if (bt != null) {
IOrderedDictionary values = bt.ExtractValues (cell);
if (values == null)
return;
foreach (DictionaryEntry e in values)
dictionary [e.Key] = e.Value;
}
}
public override void ValidateSupportsCallback ()
{
throw new NotSupportedException ("Callback not supported on TemplateField. Turn disable callbacks on '" + Control.ID + "'.");
}
protected override DataControlField CreateField ()
{
return new TemplateField ();
}
protected override void CopyProperties (DataControlField newField)
{
base.CopyProperties (newField);
TemplateField field = (TemplateField) newField;
field.AlternatingItemTemplate = AlternatingItemTemplate;
field.ConvertEmptyStringToNull = ConvertEmptyStringToNull;
field.EditItemTemplate = EditItemTemplate;
field.FooterTemplate = FooterTemplate;
field.HeaderTemplate = HeaderTemplate;
field.InsertItemTemplate = InsertItemTemplate;
field.ItemTemplate = ItemTemplate;
}
}
}
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