How to Upload file in ASP.NET

Question

1.33/5 (3 votes)

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Hello Friends
i want to upload file in ASP.NET
i am using the following code.

<asp:DataList ID="dlist" runat="server" RepeatColumns="3">
<itemtemplate>
<asp:Image ID="img1" runat="server"
ImageUrl='<%# Eval("Name", "~/Images/{0}") %>'
style="width:200px;height:200px;"/>

<%# Eval("Name", "~/Images/{0}") %>

and on button click

C#

protected void Page_PreRender(object sender, EventArgs e)
   {
       string upFolder = MapPath("~/Images/");
       DirectoryInfo dir = new DirectoryInfo(upFolder);
       dlist.DataSource = dir.GetFiles();
       dlist.DataBind();
   }
   protected void Button1_Click(object sender, EventArgs e)
   {
       try
       {
           if (FileUpload1.HasFile)
           {
               if (CheckFileType(FileUpload1.FileName))
               {
                   String filePath = "~/Images/" + FileUpload1.FileName;
                   FileUpload1.SaveAs(Server.MapPath(filePath));
               }
           }
       }
       catch (Exception ee)
       {
           Response.Write("Message : " + ee.Message);
           Response.Write(ee.StackTrace);
       }
   }
   bool CheckFileType(string fileName)
   {
       string ext = Path.GetExtension(fileName);
       switch (ext.ToLower())
       {
           case ".gif":
               return true;
           case ".png":
               return true;
           case ".jpg":
               return true;
           case ".jpeg":
               return true;
           default:
               return false;
       }
   }


is there any short way to upload the file ...IF yes then please help me..
Please give answer..
Thanks a lot.

Posted 12-Feb-13 7:28am

Member 9823446

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Comments

fjdiewornncalwe 12-Feb-13 13:33pm

What is the problem. You haven't told us what is going wrong, just what you want to do.

3 solutions

Solution 1

http://www.aspdotnet-suresh.com/2011/01/how-to-insert-images-into-database-and.html[^]

http://www.aspdotnet-suresh.com/2011/03/how-to-save-images-into-folder-and.html[^]

http://www.aspdotnet-suresh.com/2012/02/saveupload-files-in-folder-and-download.html[^]

Posted 12-Feb-13 7:49am

Avik Ghosh22

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unforgiven.1791 · Accepted Answer · 2013-02-12T07:50:00

Hi . this code may help you . i don't test them ! ;)
for save file use this :

FileUpload1.SaveAs(Server.MapPath("Books/") +FileUpload1.FileName);

for file-type check use this that return the answer ( seem better that switch!) :

if(
(System.IO.Path.GetExtension(FileUpload1.FileName) == ".jpg") || (System.IO.Path.GetExtension(FileUpload1.FileName) == ".jpeg") || (System.IO.Path.GetExtension(FileUpload1.FileName) == ".bmp") || (System.IO.Path.GetExtension(FileUpload1.FileName) == ".gif") || (System.IO.Path.GetExtension(FileUpload1.FileName) == ".ico") || (System.IO.Path.GetExtension(FileUpload1.FileName) == ".png")
)

{some code}
else
{some code}

a2ulthakur · Accepted Answer · 2013-02-12T15:36:00

C#

if (FileUpload1.HasFile)
        {
            string name = Path.GetFileName(FileUpload1.PostedFile.FileName);
            string location = Server.MapPath("~/docs/" + name);
            FileUpload1.SaveAs(location);
            SqlCommand cmd = new SqlCommand();
            cmd.CommandText = "insert into upload (FileName) values (@FileName)";
            cmd.Parameters.AddWithValue("@FileName", name);
            cmd.Connection = con;
            con.Open();
            int result = cmd.ExecuteNonQuery();
            if (result > 0)
                lblMessage.Visible = true;
            lblMessage.Text = "File saved";
            cmd.Dispose();
            con.Close();

use custom validation control to control the documents that can be uploaded

SQL

Regular expression to validate file formats for .jpeg or .JPEG or .gif or .GIF or .png or .PNG

Re= /^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+(.jpeg|.JPEG|.gif|.GIF| .png|.PNG)$/;

http://www.aspdotnet-suresh.com/2010/12/how-to-validate-file-type-in-file.html[^]

How to Upload file in ASP.NET

3 solutions

Solution 1

Solution 2

Solution 3

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