//
// System.Web.UI.HtmlControls.HtmlTextArea.cs
//
// Author:
// Sebastien Pouliot
//
// 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.Collections.Specialized;
using System.Globalization;
using System.Security.Permissions;
namespace System.Web.UI.HtmlControls {
// CAS
[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
// attributes
[DefaultEvent ("ServerChange")]
[ValidationProperty ("Value")]
#if NET_2_0
[SupportsEventValidation]
#endif
public class HtmlTextArea : HtmlContainerControl, IPostBackDataHandler {
private static readonly object serverChangeEvent = new object ();
public HtmlTextArea ()
: base ("textarea")
{
}
[DefaultValue ("")]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
[WebSysDescription("")]
[WebCategory("Appearance")]
public int Cols {
get {
string s = Attributes ["cols"];
return (s == null) ? -1 : Convert.ToInt32 (s);
}
set {
if (value == -1)
Attributes.Remove ("cols");
else
Attributes ["cols"] = value.ToString (CultureInfo.InvariantCulture);
}
}
[DefaultValue ("")]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
[WebSysDescription("")]
[WebCategory("Behavior")]
public virtual string Name {
get { return UniqueID; }
set { ; }
}
[DefaultValue ("")]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
[WebSysDescription("")]
[WebCategory("Appearance")]
public int Rows {
get {
string s = Attributes ["rows"];
return (s == null) ? -1 : Convert.ToInt32 (s);
}
set {
if (value == -1)
Attributes.Remove ("rows");
else
Attributes ["rows"] = value.ToString (CultureInfo.InvariantCulture);
}
}
[DefaultValue ("")]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
[WebSysDescription("")]
[WebCategory("Appearance")]
public string Value {
get { return InnerHtml; }
set { InnerHtml = value; }
}
protected override void AddParsedSubObject (object obj)
{
if (!((obj is LiteralControl) || (obj is DataBoundLiteralControl))) {
throw new HttpException (Locale.GetText ("Wrong type."));
}
base.AddParsedSubObject (obj);
}
#if NET_2_0
protected internal
#else
protected
#endif
override void OnPreRender (EventArgs e)
{
base.OnPreRender (e);
if (Page != null) {
Page.RegisterRequiresPostBack (this);
}
}
protected virtual void OnServerChange (EventArgs e)
{
EventHandler serverChange = (EventHandler) Events [serverChangeEvent];
if (serverChange != null)
serverChange (this, e);
}
protected override void RenderAttributes (HtmlTextWriter writer)
{
if (Attributes ["name"] == null) {
writer.WriteAttribute ("name", Name);
}
base.RenderAttributes (writer);
}
#if NET_2_0
protected virtual bool LoadPostData (string postDataKey, NameValueCollection postCollection)
{
return DefaultLoadPostData (postDataKey, postCollection);
}
protected virtual void RaisePostDataChangedEvent ()
{
OnServerChange (EventArgs.Empty);
}
#endif
internal bool DefaultLoadPostData (string postDataKey, NameValueCollection postCollection)
{
string s = postCollection [postDataKey];
if ((s != null) && (s != Value)) {
Value = s;
return true;
}
return false;
}
bool IPostBackDataHandler.LoadPostData (string postDataKey, NameValueCollection postCollection)
{
#if NET_2_0
return LoadPostData (postDataKey, postCollection);
#else
return DefaultLoadPostData (postDataKey, postCollection);
#endif
}
void IPostBackDataHandler.RaisePostDataChangedEvent ()
{
#if NET_2_0
RaisePostDataChangedEvent ();
#else
OnServerChange (EventArgs.Empty);
#endif
}
[WebSysDescription("")]
[WebCategory("Action")]
public event EventHandler ServerChange {
add { Events.AddHandler (serverChangeEvent, value); }
remove { Events.RemoveHandler (serverChangeEvent, value); }
}
}
}