//
// (C) 2005 Mainsoft Corporation (http://www.mainsoft.com)
//
// Authors:
// Andrew Skiba <andrews@mainsoft.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.
//
#if NET_2_0
using System;
using System.ComponentModel;
using System.Web;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Security.Permissions;
using System.IO;
namespace System.Web.UI.WebControls{
[ControlValueProperty ("FileBytes")]
[ValidationProperty ("FileName")]
[Designer ("DesignerBaseTypeNameSystem.ComponentModel.Design.IDesignerDesignerTypeNameSystem.Web.UI.Design.WebControls.PreviewControlDesigner, " + Consts.AssemblySystem_Design)]
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal, Unrestricted=false)]
[AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal, Unrestricted=false)]
public class FileUpload : WebControl
{
public FileUpload ()
: base (HtmlTextWriterTag.Input)
{
}
byte[] cachedBytes;
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
[Bindable (true, BindingDirection.OneWay)]
[Browsable (false)]
public byte[] FileBytes {
get {
if (cachedBytes == null) {
cachedBytes = new byte[FileContent.Length];
FileContent.Read (cachedBytes, 0, cachedBytes.Length);
}
return (byte [])(cachedBytes.Clone ());
}
}
[Browsable(false)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public Stream FileContent {
get {
if (PostedFile == null)
return Stream.Null;
else {
Stream ret = PostedFile.InputStream;
if (ret != null)
ret.Position = 0;
return ret;
}
}
}
[Browsable (false)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public string FileName {
get {
if (PostedFile == null)
return string.Empty;
else
return Path.GetFileName (PostedFile.FileName);
}
}
[Browsable (false)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public bool HasFile {
get {
HttpPostedFile pf = PostedFile;
return (pf != null && !String.IsNullOrEmpty (pf.FileName));
}
}
[Browsable (false)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public HttpPostedFile PostedFile {
get {
if (Page == null || !Page.IsPostBack)
return null;
if (Context == null || Context.Request == null)
return null;
return Context.Request.Files[UniqueID];
}
}
protected override void AddAttributesToRender (HtmlTextWriter writer)
{
writer.AddAttribute (HtmlTextWriterAttribute.Type, "file", false);
if (!string.IsNullOrEmpty (UniqueID))
writer.AddAttribute (HtmlTextWriterAttribute.Name, UniqueID);
base.AddAttributesToRender (writer);
}
protected internal override void OnPreRender (System.EventArgs e)
{
base.OnPreRender (e);
Page.Form.Enctype = "multipart/form-data";
}
protected internal override void Render (HtmlTextWriter writer)
{
if (Page != null)
Page.VerifyRenderingInServerForm (this);
base.Render (writer);
}
public void SaveAs (string filename)
{
HttpPostedFile file = PostedFile;
if (file != null)
file.SaveAs (filename);
}
}
}
#endif
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