Upload fil med dato og tidspunkt
er der ikke nogen der kan lave dette script om således et den gemmer filen således at fil navnet kommer til at indeholde dato og klokkeslæt (ÅÅÅÅ-MM-DD-TTMMSS-filnavn.filtype) og den skal selvfølgelig bruge server tiden!!<%@ Page Language="C#" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Drawing" %>
<script language="javascript">
function vis()
{
opener.location.replace('images.asp?sub=uploaded/');
self.close;
}
</script>
<script runat=server>
private void myUploadCode(Object sender, EventArgs e) {
string strFileName;
if(upload_file.PostedFile.ContentLength < (200*1024)) { //Er fil over 100kb?
if(upload_file.PostedFile.FileName.IndexOf("\\") > 0) {
strFileName = upload_file.PostedFile.FileName.Substring(upload_file.PostedFile.FileName.LastIndexOf("\\") + 1);
} else { strFileName = "ukendt.fil"; }
if(!File.Exists(Server.MapPath("uploaded/stor/" + strFileName))) {
int MaxSize = 100;
try
{
System.Drawing.Image image = new System.Drawing.Bitmap(upload_file.PostedFile.InputStream);
upload_file.PostedFile.SaveAs(Server.MapPath("uploaded/stor/" + strFileName));
System.Drawing.Bitmap bOrg = (System.Drawing.Bitmap)image;
System.Drawing.Imaging.ImageFormat format = image.RawFormat;
if(image.Width>MaxSize || image.Height>MaxSize) {
Bitmap b = Resize(bOrg,MaxSize,MaxSize);
b.Save(Server.MapPath("uploaded/" + strFileName ),format);
}
else
{ //Gem original da billede allerede er mindre end 100px
upload_file.PostedFile.SaveAs(Server.MapPath("uploaded/" + strFileName));
}
Response.Write("<a href=\"img.asp?img=uploaded/stor/" + strFileName + "\">vis billed</a></p>");
}
catch
{
Response.Write("Der skete en fejl ved processering af billedet");
}
}
else
{
Response.Write("Filnavn eksisterer allerede, prøv at ombøbe billedet!");
}
}
else {
//Fil var for stor
Response.Write("Billedet er over 100kb");
}
}
private static Bitmap Resize(Bitmap b, int MaxHeight, int MaxWidth)
{
int nWidth = b.Width;
int nHeight = b.Height;
if(nHeight>MaxHeight) {
nWidth = (int)((((double)b.Width)/((double)b.Height))*((double)MaxHeight));
nHeight = MaxHeight;
}
if(nWidth>MaxWidth) {
nWidth=MaxWidth;
nHeight = (int)((((double)b.Height)/((double)b.Width))*((double)MaxWidth));
}
Bitmap bTemp = (Bitmap)b.Clone();
b = new Bitmap(nWidth, nHeight, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
double nXFactor = (double)bTemp.Width/(double)nWidth;
double nYFactor = (double)bTemp.Height/(double)nHeight;
for (int x = 0; x < b.Width; ++x)
for (int y = 0; y < b.Height; ++y)
b.SetPixel(x, y, bTemp.GetPixel((int)(Math.Floor(x * nXFactor)),
(int)(Math.Floor(y * nYFactor))));
return b;
}
</script>
<html>
<body link="#FFFFFF" text="#FFFFFF" bgcolor="#000000" vlink="#FFFFFF" alink="#FFFFFF">
<form enctype="multipart/form-data" runat="server">
<asp:PlaceHolder id="phEdit" runat="server">
<p><font color="#FFFFFF" face="Arial" size="5">Vælg billed:</font></p>
<input id="upload_file" type="file" runat="server" /><br><br>
<asp:button Text="Upload" onClick="myUploadCode" runat="server" /><br>
<p><font color="#FFFFFF" face="Arial" size="4">Maks fil størrelse: 200kb</font></p>
<p><a href='#' onclick='vis()'>se alle uploadede billeder!</a>
</asp:PlaceHolder>
</form>
</body></html>
selve scriptet uploader et billed og laver en kopi som bliver skaleret, så det er vigtigt at billederne i mappen "uploaded/" og "uploaded/stor/" hedder det samme!!!
Håber i kan hjælpe
mvh Niko..
