Una delle pagina aspx è la seguente:
test.aspx
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<%@ Page Language="C#" LCID=1040 Debug="true" Trace="false" %>
<%@ Import Namespace="System" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Imaging" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>
<%@ Import Namespace="System.Globalization" %>
<%@ Import Namespace="System.Web.UI.HtmlControls" %>
<%@ Import Namespace = "System.Data" %>
<%@ Import Namespace = "MySql.Data" %>
<%@ Import Namespace = "MySql.Data.MySqlClient" %>
<script Language="C#" runat="server">
void Page_Load(object sender, System.EventArgs e)
{
titletext2.Text = titletext.Text = ""Upload & Resample On-Fly, delle immagini inviate, su di una cartella del Server" [v.1.0.0]";
}
bool IsImage(string fileName)
{
string ext = Path.GetExtension(fileName).ToLower();
bool imageFlag = false;
if (ext != null)
{
switch (ext)
{
case ".emf" :
case ".exif" :
case ".ico" :
case ".wmf" :
case ".png" :
case ".gif" :
case ".bmp" :
case ".tiff" :
case ".tif" :
case ".jpeg" :
case ".jpg" : imageFlag = true; break;
default: imageFlag = false; break;
} // switch (ext)
} // if (ext != null)
else
imageFlag = false;
return imageFlag;
} // bool IsImage(string fileName)
void UploadAndResizeAnImage(HttpPostedFile file, double newWidth, double newHeight, string virPath, bool overwrite)
{
string destPath = ".";
double ThumbnailWidth = 64.0;
double ThumbnailHeight = 64.0;
bool owr = false;
if (virPath != "") destPath = virPath;
if (newWidth > 0) ThumbnailWidth = newWidth;
if (newHeight > 0) ThumbnailHeight = newHeight;
if (overwrite)
owr = true;
else
owr = false;
int pathCheck = (destPath.Substring(destPath.LastIndexOf('/') + 1)).Length;
if (pathCheck > 0) destPath += "/";
string fileName = Path.GetFileName(file.FileName);
double orgImgWidth = 0.0;
double orgImgHeight = 0.0;
double rThumbnailWidth = 0.0;
double rThumbnailHeight = 0.0;
destPath = Server.MapPath(destPath);
if ( (!File.Exists(destPath + fileName)) && (fileName.Length != 0) || (owr))
{
if (!IsImage(fileName))
{
if (fileName.Length != 0)
Status.Text += "<span style=\"color:Red;\">File '" + fileName + "' is not a valid image format. Upload... Aborted.</span>
";
return;
} // if (!IsImage(fileName))
using(System.Drawing.Image image = System.Drawing.Image.FromStream(file.InputStream))
{
rThumbnailWidth = ThumbnailWidth;
rThumbnailHeight = ThumbnailHeight;
orgImgWidth = image.Width;
orgImgHeight = image.Height;
// Se l'immagine è più piccola del Thumbnail forziamo le dimensioni di
// quest'ultimo alle dimensioni dell'immagine.
if (orgImgWidth < rThumbnailWidth) rThumbnailWidth = image.Width;
if (orgImgHeight < rThumbnailHeight) rThumbnailHeight = image.Height;
// Se le dimensioni dell'immagine e del Thumbnail corrispondono non facciamo nulla.
// quindi se l'immagine è quadrata...
if (image.Width != image.Height)
{
// Se l'immagine non è quadrata
// continuiamo a fare i nostri controlli per calcolarne le
// giuste dimensioni e quindi creare la nostra nuova immagine con
// l'aspectratio corretto.
// Se l'immagine è più larga che alta
if (image.Width > image.Height)
{
// L > H => L = tL
// La larghezza del TN sarà quella da noi stabilita
// quindi dobbiamo solo assegnarla.
rThumbnailWidth = rThumbnailWidth;
// L'altezza del TN invece dovrà essere ricalcolata
// in proporzione alla larghezza dell'immagine originale.
// L > H => tH = (H * tL)/ L
rThumbnailHeight = (double)((image.Height * rThumbnailWidth) / image.Width);
} // if (tmpImage.Width > tmpImage.Height)
else
{
// Altrimenti se l'immagine è più alta
if (image.Width < image.Height)
{
// L < H => H = tH
// L'altezza del TN sarà quella da noi stabilita
// quindi dobbiamo solo assegnarla.
rThumbnailHeight = rThumbnailHeight;
// La larghezza del TN invece dovrà essere ricalcolata
// in proporzione alla altezza dell'immagine originale.
// L < H => tL = (L * tH)/ H
rThumbnailWidth = (double)((image.Width * rThumbnailHeight) / image.Height);
} // if (image.Width < image.Height)
} // else
} // if (image.Width != image.Height)
using(Bitmap bitmap = new Bitmap(image, (int)(rThumbnailWidth), (int)(rThumbnailHeight)))
{
string message = "Uploaded";
if (File.Exists(destPath + fileName) && (owr)) message = "OverWritted";
bitmap.Save(destPath + fileName, image.RawFormat);
Status.Text += "<span style=\"color:Green;\">File '" + fileName + " @ [" + (int)(orgImgWidth) + "px X " + (int)(orgImgHeight) + "px]' " + message + " with this new size [" + (int)(rThumbnailWidth) + "px X " + (int)(rThumbnailHeight) + "px]</span>
";
} // using(Bitmap bitmap = new Bitmap(image, (int)(rThumbnailWidth), (int)(rThumbnailHeight)))
} // using(System.Drawing.Image image = System.Drawing.Image.FromFile(file))
} // if ( (!File.Exists(destPath + fileName)) && (fileName != "") || (owr))
else
{
if (File.Exists(destPath + fileName) && (!owr))
Status.Text += "<span style=\"color:Red;\">Error : The file \"<u>" + fileName + "</u>\" already exist... Upload Aborted.</span>
";
}
} // void UploadImage(HttpPostedFile file)
protected void SubmitButton_Click(Object sender, EventArgs e)
{
HttpFileCollection uploadedFiles = Request.Files;
Status.Text = "";
for (int i = 0; i < uploadedFiles.Count; i ++)
{
UploadAndResizeAnImage(uploadedFiles[i], 800.0, 600.0, "./immagini/", false);
}
string nomedelfile = Path.GetFileName(uploadedFiles[0].FileName);
MySqlConnection connection = new MySqlConnection();
connection.ConnectionString = "Data Source=localhost; Database=xxxx; User ID=xxxx; password=xxxxxx";
connection.Open();
DateTime dtmDate = new DateTime();
dtmDate = DateTime.Now;
string prova = dtmDate.ToString( "s" );
string SQL = "INSERT INTO xxxx (nome, data_ins, valido, vuolevoti, accettacond) VALUES ('" + nomedelfile + "', '" + prova + "', 'NO', 'NO', 'SI')";
Status.Text = SQL;
MySqlCommand comando = new MySqlCommand(SQL, connection);
comando.CommandText = SQL;
try
{
comando.ExecuteNonQuery();
}
catch (Exception ex)
{
Response.Write(ex.ToString());
}
finally
{
connection.Close();
}
}
</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
<link rel="icon" href="favicon.ico" type="image/x-icon">
<link rel="shortcut icon" href="favicon.ico" type="image/x-icon">
<title><asp:Literal id="titletext" runat="server"/></title>
<style type="text/css">
body
{
background:#2288DD;
}
a:link
{
color: Blue;
text-decoration: none;
}
a:active
{
color: Blue;
text-decoration: none;
}
a:visited
{
color: Blue;
text-decoration: none;
}
a:hover
{
color: Blue;
font-weight: bold;
text-decoration: none;
}
</style>
</head>
<body>
<div align="center">
<h2><asp:Literal id="titletext2" runat="server"/></h2>
<form name="inviafile" id="inviafile" enctype="multipart/form-data" runat="server">
Select File1:
<input id="File1" type="file" runat="Server"/>
<div align="center"><input id="Submit1" type="submit" value="Upload Files" runat="Server" onserverclick="SubmitButton_Click"/></div>
<asp:Label id="Status" runat="server"></asp:Label>
</form>
</div>
</body>
</html>
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Mi da questo errore:
Server Error in '/' Application.
Runtime Error
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.
Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".
<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>
Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's <customErrors> configuration tag to point to a custom error page URL.
<configuration>
<system.web>
<customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/>
</system.web>
</configuration>
--------------------------
Ma la pagina Web.Config c'è e è la seguente:
<?xml version="1.0"?>
<configuration>
<system.web>
<customErrors mode="Off"/>
<compilation debug="false">
<assemblies>
<add assembly="System, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Data, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Drawing, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/></assemblies>
</compilation>
<authorization>
<allow users="*"/>
</authorization>
</system.web>
</configuration>
Questo è il tutto...
Quale può essere il problema??
Grazie, Kuilsera
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