Upload file on server using FIleStream in ASP.NET

Do in this way :

File Upload to Server with ASP.net Uploading file to server from client sometimes very tricky. Sometimes it is required that you will not upload file more than certain size. This is the step by step approach to upload file from client to server.

Step 1: Add html input type as file

Step 2: Create a button to upload file in the server

<asp:Button ID=”Button1″ runat=”server” OnClick=”Button1_Click” />

Step 3: Create a folder in the web project like “TempFiles”
Step 4: Upload file in the server.

protected void Button1_Click(object sender, EventArgs e)

{

if (this.uploadFile.PostedFile != null)

{

// Get a reference to PostedFile object

HttpPostedFile huploadFile = uploadFile.PostedFile;

// Get size of uploaded file

int nFileLen = huploadFile.ContentLength;

decimal fileSize = uploadFile.PostedFile.ContentLength / 1024;

if (fileSize > 100) //If file size is no more than 100 KB

{

this.lblMsg.Text = "Size of this image is greater than 100KB";

return;

}

byte[] scriptData = new byte[nFileLen];

// Read uploaded file from the Stream

huploadFile.InputStream.Read(scriptData, 0, nFileLen);

string filePath = Server.MapPath("TempFiles");

filePath = filePath + "\\" + Path.GetFileName(uploadFile.PostedFile.FileName); //concate filename with file path

FileStream newFile = new FileStream(filePath, FileMode.Create);

// Write data to the file

newFile.Write(scriptData, 0, scriptData.Length);

// Close file

newFile.Close();

}

else

{

lblMsg.Text = "This is an empty file";

}

Hope it helps

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Blackbarbie Bb11y ago
Hi

Do in this way :

File Upload to Server with ASP.net Uploading file to server from client sometimes very tricky. Sometimes it is required that you will not upload file more than certain size. This is the step by step approach to upload file from client to server.

Step 1: Add html input type as file

<input id =”uploadFile” type=”file” runat=”server” />

Step 2: Create a button to upload file in the server

<asp:Button ID=”Button1″ runat=”server” OnClick=”Button1_Click” />

Step 3: Create a folder in the web project like “TempFiles”
Step 4: Upload file in the server.
protected void Button1_Click(object sender, EventArgs e)
{

if (this.uploadFile.PostedFile != null)
{
// Get a reference to PostedFile object
HttpPostedFile huploadFile = uploadFile.PostedFile;

// Get size of uploaded file
int nFileLen = huploadFile.ContentLength;

decimal fileSize = uploadFile.PostedFile.ContentLength / 1024;
if (fileSize > 100) //If file size is no more than 100 KB
{
this.lblMsg.Text = "Size of this image is greater than 100KB";
return;
}

byte[] scriptData = new byte[nFileLen];

// Read uploaded file from the Stream
huploadFile.InputStream.Read(scriptData, 0, nFileLen);

string filePath = Server.MapPath("TempFiles");

filePath = filePath + "\\" + Path.GetFileName(uploadFile.PostedFile.FileName); //concate filename with file path
FileStream newFile = new FileStream(filePath, FileMode.Create);

// Write data to the file
newFile.Write(scriptData, 0, scriptData.Length);

// Close file
newFile.Close();
}
else
{
lblMsg.Text = "This is an empty file";

}
}

Hope it helps
0