Recently do the project with ASP.net upload file content, so the code posted, so that users can consult, to provide solutions to such problems: if there is no understanding of the problem, please leave a message, in time to help you solve!
<%@ Page language= "C #" autoeventwireup= "true" codefile= "Login.aspx.cs" inherits= "Login"%>
<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<title>:::: Uploading Management system::::</title>
<body>
<form id= "Form1" runat= "Server" >
<div style= "border-right: #ffff00 thin dashed; Border-top: #ffff00 thin dashed; margin-bottom:4px; margin-left:55px; Border-left: #ffff00 thin dashed; Line-height:normal; margin-right:55px; padding-top:1px; Border-bottom: #ffff00 thin dashed; Letter-spacing:normal; position:static; Background-color:silver; Text-align:center ">
<br/>
<asp:label id= "Labeltitle" runat= "Server" font-bold= "True" font-size= "Xx-large" forecolor= "BLACK"
text= "Upload management" ></asp:label><br/>
<br/>
<asp:fileupload id= "FileUpload1" runat= "Server" width= "369px"/>
<asp:button id= "Buttonup" runat= "Server" height= "21px" text= "Upload" width= "67px"/><br/>
<br/>
<asp:label id= "LabelTitle2" runat= "Server" forecolor= "Red" text= "* Upload file cannot exceed 2M" ></asp:label><br/>
<b> original filename: </b><span id = "FileName" runat= "server"/><br/>
<b> upload to server: </b><span id= "Savedir" runat= "Server"/><br/>
<b> thumbnail address: </b><span id = "Ssavedir" runat = "server"/><br/>
<b> file type: </b><span id = "FileType" runat = "server"/><br/>
<b> File Size: </b><span id= "filelength" runat = "server"/><br/>
<b> file Development name: </b><span id= "fileextention" runat= "Server"/><br/>
<b> Upload date: <br/><span id = "UpdateTime" runat = "server"/><br/>
Picture preview: <br/>
<asp:image id= "Image1" runat= "Server" imageurl= "~/login.aspx" bordercolor= "#0000C0"/><br/>
</b>
<br/>
<br/>
</div>
</form>
</body>
********************************************************
Using System;
Using System.Data;
Using System.Configuration;
Using System.Collections;
Using System.Web;
Using System.Web.Security;
Using System.Web.UI;
Using System.Web.UI.WebControls;
Using System.Web.UI.WebControls.WebParts;
Using System.Web.UI.HtmlControls;
The
using MWO. Model.info; The
using MWO. DAL. Info;
public partial class Login:System.Web.UI.Page
{
protected void Page_Load (object sender, EventArgs e)
{
}
protected void Buttonup_click (object sender, EventArgs e)
{
& nbsp; if (FileUpload1.PostedFile.FileName!= null)
{
Try
{
filename.innerhtml = Fileupload1.postedfile.filename;//getphotoname
updatetime.innerhtml = DateTime.Now.ToShortDateString ();//updatetime
#region Setphotosize
filelength.innerhtml = Countsize (FileUpload1.PostedFile.ContentLength);
if (FileUpload1.PostedFile.ContentLength > 1024 * 1024 * 2)
{
Response.Write (' <script>alert (' picture cannot exceed the specified size! ');</script> ");
}
Else
{
#region Setphotoformat
filetype.innerhtml = FileUpload1.PostedFile.ContentType;
fileextention.innerhtml = System.IO.Path.GetExtension (FileUpload1.PostedFile.FileName). ToUpper ();
String m_filename = "www.webjx.com-" + DateTime.Now.ToString ("Yyyy-mm-dd-hh-mm-ss-ffff"). Replace (".", "-") + fileextention.innerhtml;
String m_sfilename = "www.webjx.com-" + DateTime.Now.ToString ("Yyyy-mm-dd-hh-mm-ss-ffff"). Replace (".", "-") + fileextention.innerhtml;
if (fileextention.innerhtml = = ". JPG ")
{
String m_savepath = Server.MapPath ("./photo/") + m_filename;
savedir.innerhtml = M_savepath;
#region Setsmallphoto
this. Makesmallimg (Fileupload1.postedfile, this. Server.MapPath ("./sphoto/") + M_sfilename, 118, 90);
string M_ssavepath = this. Server.MapPath ("./sphoto/") + m_sfilename;
ssavedir.innerhtml = M_ssavepath;
#endregion
FileUpload1.PostedFile.SaveAs (M_savepath);
Response.Write (' <script>alert (' picture file saved successfully! ');</script> ");
#region Savedatabasee
Photoinfo m_pinfo = new Photoinfo ();
M_pinfo.organization = "5173";
M_pinfo.picname = filename.innerhtml;
M_pinfo.servername = "Glsdb";
M_pinfo.cdate = DateTime.Now;
M_pinfo.exp = fileextention.innerhtml;
M_pinfo.flag = 0;
M_pinfo.gamenickname = "Bruce";//textbox control content
M_pinfo.moonstar = 0;
M_pinfo.showindex = 0;
M_PINFO.SPICHTTPADDR = M_ssavepath;
M_pinfo.type = 0;
M_pinfo.vote = 0;
M_pinfo.pichttpaddr=m_savepath;
Photodao M_pdao = new Photodao ();
M_pdao.insert (M_pinfo);
#endregion
}
Else
{
Response.Write ("<script>alert picture format is not correct, please select picture File!") ');</script> ");
}
#endregion
}
#endregion
}
catch (Exception m_ex)
{
Response. Write ("<script>alert" ("+m_ex.tostring () +");</script> ");
}
}
else if (FileUpload1.PostedFile.FileName = "")
{
Response.Write (' <script>alert (' upload file cannot be empty! ');</script> ");
}
}
#region
<summary>
Calculate file size function, size to byte
</summary>
<param name= "Size" > Initial file Size </param>
<returns></returns>
public string countsize (long Size)
{
String m_strsize = "";
Long factsize = 0; Factsize = Size;
if (factsize <= 1024)
M_strsize = factsize.tostring () + "Byte";
if (factsize>=1024&&factsize<=1048576)
M_strsize= (factsize/1024). ToString () + "K";
if (factsize >= 1048576 && factsize <= 10485760)
M_strsize = (factsize/1024/1024). ToString () + "M";
return m_strsize;
}
#endregion
#region Savesmallphoto
<summary>
High-definition thumbnail image algorithm
</summary>
<param name= "Postfile" > Picture file Object </param>
<param name= "saveimg" > source file to be saved as thumbnails </param>
<param name= "width" > Breadth </param>
<param name= "height" > Height </param>
public void Makesmallimg (System.Web.HttpPostedFile postfile, String saveimg, System.Double Width, System.Double Height)
{
Sourcephotoname
string m_originalfilename = Postfile.filename;
string m_strgoodfile = saveimg;
//getphotoobject from SourceFile
System.Drawing.Image m_image = System.Drawing.Image.FromStream (Postfile.inputstream, true);
system.double newwidth, newheight;
if (M_image.width > M_image.height)
{
newwidth = Width;
newheight = m_image.height * (newwidth/m_ Image.width);
}
Else
{
newheight = Height;
newwidth = (newheight/m_image.height) * m_ Image.width;
}
if (Newwidth > Width)
{
Newwidth = Width;
}
if (Newheight > Height)
{
Newheight = Height;
}
Getphotosize
System.Drawing.Size Size =new System.Drawing.Size (int) newwidth, (int) newheight);
The New of Bimp Photo
System.Drawing.Image bitmap = new System.Drawing.Bitmap (size. Width, size. Height);
The New of Palette
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage (bitmap);
Set hightquality arithmetic for Graphics
G.interpolationmode = System.Drawing.Drawing2D.InterpolationMode.High;
Set high quality, low speed rendering smooth degree
G.smoothingmode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
Clearcanvas
G.clear (System.Drawing.Color.White);
Paint at a specified location
G.drawimage (M_image, New System.Drawing.Rectangle (0, 0, bitmap.) Width, Bitmap. Height),
New System.Drawing.Rectangle (0, 0, M_image.width, m_image.height),
System.Drawing.GraphicsUnit.Pixel);
Savephoto of Hightfocus
Bitmap. Save (M_strgoodfile, System.Drawing.Imaging.ImageFormat.Jpeg);
Disposeres
G.dispose ();
M_image.dispose ();
Bitmap. Dispose ();
}
#endregion
}
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
