Web Forms :: Cannot Upload An Excel File From Local Pc To Web Server
Jun 29, 2010
I have a simple webpage which uses the FileUpload control. I am trying to select a file from the local pc and save it to the web server which is a remote server on the company network. I have a shared folder on the web server with the appropriate permissions. The folder authentication is using a predefined user name and password.
I have tried My.Computer.Network.UploadFile and System.Net.WebRequestMethods.File.UploadFile. For both methods I am getting the following error:
System.IO.FileNotFoundException: Could not find file 'C:empfilename.xls'
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Nov 16, 2010
what is wrong with this line of code?
uploadFile.PostedFile.SaveAs("\ddg3584GraphicsWater lilies.jpg")
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Dec 30, 2010
In my current project, my client application first talk with the server and the server returned an upload url for me to upload a file, the url looks like this: [URL] Then I want to use HTTP PUT method to upload the local "c:pesult.cab" to the above loacation. How could I do this? And could anyone give me a detailed description about the whole uploading mechanism? When I use a ASP.NET upload control, I just click the browse button to locate my file and click submit, and on the server side, I just call the SaveAs() method of the upload control. Here is some code:
protected void UploadButton_Click(object sender, EventArgs e)
{
if(FileUploadControl.HasFile)
{
try
{
string filename = Path.GetFileName(FileUploadControl.FileName);
FileUploadControl.SaveAs(Server.MapPath("~/") + filename);
StatusLabel.Text = "Upload status: File uploaded!";
}
catch (Exception ex)
{
StatusLabel.Text = "Upload status: The file could not be uploaded. The following error occured: " + ex.Message;
}
}
}
Who is responsible for reading the file and sending it? What happens when I call FileUploadControl.SaveAs() method? Does the server pull the file from client, or the client push the file to the server? I know HTTP is text based, but my result.cab is not text, so is it Base64 encoded before being sent? How does HTTP PUT method work? Is it a client side push, or a server side pull? Or interaction of both like some kind of handshake?
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Dec 9, 2010
I have created a CSV file on the server and want to send it to the user using the following code:
Dim strPhysicalPath As String
strPhysicalPath = Server.MapPath( "CSV/" & PathVirtual)
Dim objFileInfo As System.IO.FileInfo = New System.IO.FileInfo(strPhysicalPath)
Response.Clear()
Response.ContentType = "application/vnd.ms-excel"
Response.AddHeader("Content-Disposition", "attachment; filename=" & objFileInfo.Name)
Response.AddHeader("Content-Length", objFileInfo.Length.ToString())
Response.WriteFile(strPhysicalPath)
Response.Flush()
Response.End()
This seems to work fine except when the downloaded file is viewed in Excell the html code behind the page from which it came is also appended to the file. Does anyone have any idea why it does this?
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Dec 3, 2010
when i tring to upload excel file in sql,it was upload few recoreds and gives me error. i can not understand the error.
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Apr 28, 2010
I have requirement that User can Upload the Excel Sheet Data to sql server Database at once.
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Mar 9, 2010
I want how to upload the excel sheet data and that data will save in Sql Server 2008(table).
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Mar 7, 2011
i have a large excel file which has 1 lakh row , i want to insert these data in my table i am using entity framework for insert but it takes more than 45 minutes to insert which is too much, i want to speed up the uploading process what should i do. can I use multithreading for it if yes then how i can use? if any other way to do this process.
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Dec 1, 2010
how to download excel file containing formula like sum and cell protection from a reportviewer?
I had tried to render the end result from the reportviewer to edit it result before exporting it out but reportviewer is only able to render out as byte format.
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Jul 23, 2010
With the project I'm working right now, the team and I don't believe the network/computer policies will allow us to create and save Excel files on a local machine through the Web pages we're building. Well, let me clarify. When we run our web pages on our development machines, when we go to save information to excel through the web page, it uses our local excel executable. However, we want it to use the web server's excel executable. When we run the website, we're running individual local copies because we don't have a web server to test on, so we can't verify if it will use the Web Server's or ours. Does anyone know what it will do, or if it has to be programmatically set a specific way to use excel on the web server, and not on the local machine. Once we get the Web Server to use excel, we'd save the file to a network share that would allow the user to view the file.
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Dec 2, 2010
I am trying to upload an excel file and my code reads the data of excel one by one. Unfortunately as we all know that excel doesn't restrict the data type for each cells, so there is a chance and possibility that my code can catch the exceptions.
How can I do this?
Code:
try
{
// do the statement
}
catch
{
// throw the exception, log it and then proceed to the next, don't stop.
// then prompt the users of all exceptions encountered.
}
I need to process more than 1,000 rows of data from excel. I don't want every time there is an exceptions the uploading process stops and fixed the problem then re-upload the data again. I want to consolidate first all the data with issues or exceptions then deal with it later after the uploading process done.
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Nov 25, 2011
I want to know how to upload Word, PDF and Excel documents to SQL Server database in ASP.Net
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Jul 29, 2010
i need to control Only ExcelFile uploading with RegularExpressionValidator How can i do that? i need to write a regex pattern in ValidationExpression...
<h3>FileUpload Test</h3>
<div>
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button id="UploadBtn" Text="Upload File" OnClick="UploadBtn_Click" runat="server" Width="105px" />
<asp:Label ID="Label1" runat="server" Text=""></asp:Label>
<asp:RegularExpressionValidator
id="FileUpLoadValidator" runat="server"
ErrorMessage="Upload Excel only."
ValidationExpression="([a-z]w*)(.xlsx|.xlsm|.xls)$"
ControlToValidate="FileUpload1">
</asp:RegularExpressionValidator>
</div>
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Feb 10, 2010
I have to create upload file program and this file should be uploaded in excel file. I do not want to use Pacakage.
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Apr 27, 2016
When I try to upload excell to table as bulk on server 64 bit
the error show
(its work on my pc but when i publish it on server error shows)
The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine.
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Feb 3, 2011
I've an application built on asp.net 2.0. There is an option for user to upload excel file. Once the file has been uploaded the data in the file is validated against some business rules. Rows that successfully validates are inserted into database as soon as it is validated.
I use ado.net to connect to excel file. And use data reader to iterate over all the records. Normally the number of records range from 5,000 to 20,000. This process takes good 8 to 10 minutes. I want to optimize this process because to my understanding it takes too long. Currently I am looking at OPENROWSET, OpenDataSource which so far is unsuccessful. Valiation that takes place on every row is very simple. I only checks for maximum length. So validation itself is not an issue.
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Apr 13, 2010
I need to be able to have a user upload an excel file, then immediately work with that file and save the contents in a database.
I know how to do this if I save the file first, then open it using OleDB, BUT I would rather not save it first.
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Jan 18, 2011
I would like to upload a xlsx file to Oracle DB (Oracle 11g). I'm using VS .NET 2008 (C#, web).
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May 21, 2010
I have a gridview that allows the user to export this gridview to excel. Here is my codes but I would like my user to be able to select where to download the file
Protected Sub ExportToExcel(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExport.Click
lblMsg.Visible = True
Try
Dim objSw As New StreamWriter(txtFileName.Text.Trim + ".xls")
'Dim serverFilePath As String = "D:Excel Files"
'Dim fileStream As New FileStream(serverFilePath, FileMode.Open)
'Dim fileSize As Long = fileStream.Length
'Response.ContentType = "application/octet-stream"
'Response.AddHeader("Content-Disposition", "attachment; filename=""" & txtFileName.Text.Trim & """;")
'Dim fileBuffer As Byte() = New Byte(fileSize - 1) {}
'fileStream.Read(fileBuffer, 0, CInt(fileSize))
'Response.BinaryWrite(fileBuffer)
'fileStream.Close()
'Response.[End]()
Dim objDt As DataTable = DirectCast(Session("Data"), DataTable).Copy()
'Get No Of Column in GridView
Dim NoOfColumn As Integer = objDt.Columns.Count...........................
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Mar 15, 2011
I need to upload an excel file using a web application. Then I need t oread it in memory without saving it on the server.
Does the file need to have headers? Also the data is such that it may have or may not have values for some columns.
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Jan 1, 2010
Is it possible to upload and Save Excel file as blob in Sql table through web application?
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Mar 9, 2013
I am attempting to write an asp.net application that copies any file from the user's local machine to another server on the same network.
The Catch
The server that will house the application is separate from the server that will receive the files from the local user's machine. In other words, to do the file copy the user will have to access the application on one server via IIS and within the application it must place that file on another server. Further, these servers while on the same network cannot physically see each other.
In addition, the users of the application are connected Anonymously (Anonymous Authentication)
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Jun 10, 2010
EmployeeMaster is the Table name which contains more than 120 Columns in SQL I want to upload Excel contains EmployeeMaster Details in to SQL Server using Asp.net Application.
Example
if i try to update certain details like EmailID,Address,PANCardNo to certain Employees i can update. but i cant give this detials static.
but it should check with old record if it mismatches it should updated
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Jan 5, 2011
We have the data in excel file and want to upload the same into Oracle table.To achieve this we are using following query
insert into [ODBC:Driver={Microsoft ODBC for oracle};connectionstring].tablename (select * from sheet$ )
This is working fine for less records but when the record count increases following is the error faced. Error : System Resource Exceeded
We tried the following:
1. We tried to remove connection pooling for oracle.
2. We tried to remove connection pooling for excel.
3. We also verified that only one connection for each (oracle and excel) is open.
Our assumptions:
1. Either the server setting is the issue
2. Jet oledb Driver is the issue.
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Sep 14, 2010
i have a .JPG file in my local machine which has to be sent as body of SMTP mail.Path of image D://foldername//imagename.jpg The code I run is in the server mc. I want it to access my local machine's d: folder to get the image file. But it is accessing the server mc's d: folder. How can this be done?
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