//
// System.Web.UI.HtmlControls.HtmlInputFile.cs
//
// Author:
// Dick Porter
//
// 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.Collections.Specialized;
using System.ComponentModel;
using System.Security.Permissions;
namespace System.Web.UI.HtmlControls
{
// CAS
[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
// attributes
[ValidationProperty ("Value")]
public class HtmlInputFile : HtmlInputControl , IPostBackDataHandler
{
public HtmlInputFile () : base ("file")
{
}
[DefaultValue ("")]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
[WebSysDescription("")]
public string Accept
{
get {
string acc = Attributes["accept"];
if (acc == null) {
return (String.Empty);
}
return (acc);
}
set {
if (value == null) {
Attributes.Remove ("accept");
} else {
Attributes["accept"] = value;
}
}
}
[DefaultValue ("")]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
[WebSysDescription("")]
public int MaxLength
{
get {
string maxlen = Attributes["maxlength"];
if (maxlen == null) {
return (-1);
} else {
return (Convert.ToInt32 (maxlen));
}
}
set {
if (value == -1) {
Attributes.Remove ("maxlength");
} else {
Attributes["maxlength"] = value.ToString ();
}
}
}
HttpPostedFile posted_file;
[DefaultValue ("")]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
[WebSysDescription("")]
[WebCategory("Misc")]
public HttpPostedFile PostedFile
{
get {
return (posted_file);
}
}
#if NET_2_0
[DefaultValue ("-1")]
#else
[DefaultValue ("")]
#endif
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
[WebSysDescription("")]
[WebCategory("Appearance")]
public int Size
{
get {
string size = Attributes["size"];
if (size == null) {
return (-1);
} else {
return (Convert.ToInt32 (size));
}
}
set {
if (value == -1) {
Attributes.Remove ("size");
} else {
Attributes["size"] = value.ToString ();
}
}
}
[Browsable (false)]
public override string Value
{
get {
string value = Attributes["value"];
if (value == null) {
return (String.Empty);
}
return (value);
}
set {
throw new NotSupportedException ("The value property on HtmlInputFile is not settable.");
}
}
#if NET_2_0
protected internal
#else
protected
#endif
override void OnPreRender (EventArgs e)
{
base.OnPreRender (e);
if (Page != null) {
Page.RegisterRequiresPostBack (this);
}
HtmlForm form = (HtmlForm) SearchParentByType (typeof (HtmlForm));
if (form != null && form.Enctype == "")
form.Enctype = "multipart/form-data";
}
Control SearchParentByType (Type type)
{
Control ctrl = Parent;
while (ctrl != null) {
if (type.IsAssignableFrom (ctrl.GetType ())) {
return ctrl;
}
ctrl = ctrl.Parent;
}
return null;
}
bool LoadPostDataInternal (string postDataKey, NameValueCollection postCollection)
{
posted_file = Page.Request.Files [postDataKey];
return (false);
}
void RaisePostDataChangedEventInternal ()
{
/* No events to raise */
}
#if NET_2_0
protected virtual bool LoadPostData (string postDataKey, NameValueCollection postCollection)
{
return LoadPostDataInternal (postDataKey, postCollection);
}
protected virtual void RaisePostDataChangedEvent ()
{
RaisePostDataChangedEventInternal ();
}
#endif
bool IPostBackDataHandler.LoadPostData (string postDataKey, NameValueCollection postCollection)
{
#if NET_2_0
return LoadPostData (postDataKey, postCollection);
#else
return LoadPostDataInternal (postDataKey, postCollection);
#endif
}
void IPostBackDataHandler.RaisePostDataChangedEvent ()
{
#if NET_2_0
RaisePostDataChangedEvent ();
#else
RaisePostDataChangedEventInternal ();
#endif
}
}
}