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.
i need to control Only ExcelFile uploading with RegularExpressionValidator How can i do that? i need to write a regex pattern in ValidationExpression...
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.
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.
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'
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...........................
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.
I am using the async file upload control to upload to a image file. I want the user to upload only jpg files. And for that I am checking the uploadedfile content type in server side, after the upload complets. I wanna check this, before upload starts. There is one javascript method
function startUpload(sender, args){}
but how to access the content type of the file selected by user.
I want to upload files to the web servers from the client machines.
Can i upload a file on a network share folder using file upload control?
I would like to create a share folder on a file server sitting next to the web server. If i upload the file from the network share folder instead of uploading it from the client machine does it make any difference?
Will the file be stored in a temporary location before copying to the final destination? Where will be the file stored in this case of uploading it from share folder?
i have problem in uploading 2gb video file using file upload control in asp.net, i have limit the maximum file size in web config file then also it shows error any remedy for that...
Im using a file uploader to upoad files to a folder used for upload.But the problem is this folder is a linux folder. I have made it a shared folder so that I can access from windows by samba. So, file transfer is successful when I'm using os but when I try to upload something from my websites uploader to this folder, this process is not successful. I have given all permissions to this folder.Don't know whats the problem.I have used both type of slashes for directory but still it is not successful.
