C# - Best Practice For Uploading Excel Data In SQL Server Using .NET
Mar 4, 2010
I am looking for best practice for uploading excel data in Sql server 2000 database through asp.net web application. Excel data will be predefined Format with almost 42 columns and out of 42 10 fields are mandatory and rest are conditional mandatory. i.e. if data exists it should be in defined format. I also need to validate for special character, length, specified format and so on.After validating, i need to store valid data into sql server table and provide export to excel functionality for invalid data for exporting in same excel format with indicator to identity the invalid cells.
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Jan 18, 2011
I am sorry to ask this general question. But I could not find any comments sharing about real world experience when it comes to uploading photos. I knows a little bit about uploading photos to SQL database. One is uploading the photos insidea folder and the link to the photos will be stored inside the imagemap (not sure about this datatype??) column and perhaps the other way is to store the photos inside the database itself. Which one is the common and best practice?Any links that I can refer to?
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Jan 18, 2010
What I am thinking is this? Is it possible for me to upload the data from an excel file to dataset of my application first, so that the user can view the data in a gridview to review it first, before the user strike the save button, to save it in the database. So, that in case there is a problem, the gridview will high light all the data with an error. So the user can easily pull out the excel and correct the data before saving it in the database.
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Apr 25, 2010
[Code]....
i have successfully showed data using puting directpath in to a textbox(e.g, filename=TextBox1.Text;). but the code above is not working. i dont know why.
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May 18, 2010
I have a big excel file , and i want to upload it to server.
on upload_click , i have to do a processing which takes very long time,
because i am finding latitude and longitude from the google by reading that excel file.
and i wanted that when used click on CANCEL button the process should stop.
i have created a thread on upload_click and doing all this stuff in that thread .
when user clicks on CANCEL , i am aborting that thread.
but when user again tries to upload file , i am getting the error that file is in use .
to solve this problem i have to stop aspnet_wp.exe from task manager and have to try again .
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Sep 17, 2010
What is the efficient way to upload excel data to sql database?excel file consists of 4000 rows..so i need to save these records to sql database in web application,i know only by creating ODBC connection i.e
_path = @"Driver={Microsoft Excel Driver (*.xls)};DriverId=790;Dbq=" + _path;
OdbcConnection _xlsConn = new OdbcConnection(_path);
_xlsConn.Open();
OdbcCommand _xlsSelSht = new OdbcCommand("Select " + columns + " FROM [" + _sheet + "$]", _xlsConn);
OdbcDataReader _xlsReader = _xlsSelSht.ExecuteReader();
while (_xlsReader.Read()){.....}
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Aug 27, 2010
I facing a problem when I upload a file from my side while the application is running in server.
The error shows below:
'C:Excel FilesStaff Directory1.xlsx' is not a valid path. Make sure that the path name is spelled correctly and that you are connected to the server on which the file resides.
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Jun 28, 2010
I want to upload data from an Excel Sheet into my DB. Now my major requirement is, I do not know the header count in the files to be uploaded and they may vary, for example one file may have 3 headers while some may have 6. and I want data of both these files to go into a single DB. That is, I want to dynamically generate columns in my DB, and store these values. So how do I go about achieving this.
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Jan 24, 2016
Currently I was done to insert data thru upload excel file. May I know, how to UPDATE the existing data using iploading excel file.
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Mar 2, 2011
I have created one class as Employee.
Then i created properties, as below
[code]....
and same properties to be used while retriving data from sql server.
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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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Dec 15, 2010
I received this error after I have deployed my application in the server (win 2003) but in my development pc it is working.
Code:
External table is not in the expected format.I can upload even the excel files is more than 30MB in file size.
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May 3, 2010
I have a web page which I have created to allow users to upload excel file sheet and thus these sets of data will be inserted into the database. However, as I was testing out, I realized that if the excel file is too large (i.e. mulitple sheets, > 5 sheets) , the portal may not be able to handle the large amount of data and displayed error message like the connection is reset. I tried it with only less than 5 sheets it will be fine. Any idea if there are any codes or mechanism which could solve this problem?
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Mar 25, 2011
I am a beginer in Developing ASP.NET webpage.
I want to restrict duplicates while uploading the excel data and to inform the user that the perticular cell in excel contains duplicate value which is already exist in Sql Database.(Duplicates should be check in Excel (EMP_ID) against SQL (EMPLOYEE_ID)
SQL DATABASE
Table : Employees
FiledName:EMPLOYEE_ID
Excel DATABASE
Sheet: Sheet1
Column: EMP_ID
Message should display as:user cannot upload the data to with duplicate values. Kindly remove the duplicate fields and re-upload.
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Sep 27, 2011
I come from MVC side, where these things make more sense (of course just because I know a bit about it) and my webforms are still sucky sucky.
I got a page where I want the user to upload a file (Excel).
Not too worried about the upload timing out, but after uploading this file will be processed (time & attendance data to be written to the database)
So what I'd like to happen is everything happen asynchronously with the page being updated as the file are being processed.
Also, I'm not sure.. won't I need excel on the server to have my code read the excel file?
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Dec 2, 2010
when uploading an excel file i am receving this error.
[code]....
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May 10, 2010
I'm able to upload and read any excel file to my server prior 2007, when I try an 07 Excel file, i'm getting the following error message:
'microsoft.ace.oledb.12.0' provider is not registered on the local machine'
do I need anything specail on the web server to allow for Excel 07 files? I'm running IIS6 and a Win 2003 server
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Oct 8, 2010
I am uploading an excel file ( containing int values )using the fileupload control. I need to work on one entire column in the excel sheet.I want to copy contents of the file either in an array or a table and then work on it.Can anybody suggest a better way of working on the excel since .
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Aug 26, 2010
I am facing some problem while uploading excel sheet upload and connecting it to dataset. The Code works fine in local machine but on website its showing following error.
System.Data.OleDb.OleDbException: Unspecified error at System.Data.OleDb.OleDbConnectionInternal
Below is my code:
string FileName = Path.GetFileName(FileUpload1.PostedFile.FileName);
string Extension = Path.GetExtension(name);
string FolderPath = ConfigurationManager.AppSettings["FolderPathSMS"];
string FilePath = Server.MapPath(FolderPath + FileName);
switch (Extension)
{
case ".xls": //Excel 97-03
s = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + FilePath + ";Extended Properties='Excel 8.0;HDR={1}'";
break;
case ".xlsx": //Excel 07
s = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + FilePath + ";Extended Properties='Excel 8.0;HDR={1}'";
break;
}
EDT = new DataTable();
EDT.Columns.Add("MobileNo", typeof(string));
con = new OleDbConnection(s);
con.Open(); // I am getting the error at this point
da = new OleDbDataAdapter("select * from [Sheet1$]", con);
ds = new DataSet();
da.Fill(ds);
string FileName = Path.GetFileName(FileUpload1.PostedFile.FileName);
string Extension = Path.GetExtension(name);
string FolderPath = ConfigurationManager.AppSettings["FolderPathSMS"];
string FilePath = Server.MapPath(FolderPath + FileName);
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Feb 8, 2011
there is broblum for uploading excel sheet when my application runing on local host but there is no problum on vs enviroment . i am using the following connection string code
strConn =
"Provider=Microsoft.Jet.OLEDB.4.0;" +
"Data Source=" + path +
";Extended Properties=Excel 8.0;"
;
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Dec 12, 2010
when i upload a file i need to insert the data into sql server data (file will be in comma separated with different extension .ord) in vb.net file will be stored on server in a folder
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Jul 30, 2010
I have a simple update query to a access database. Works perfectly on my localhost but when I upload it to the server it displays this. The weird thing in the "
monstababy.MailingList.btnSubmit_Click(Object sender, EventArgs e) in C:inetpubwwwrootmonstababymonstababymonstababyMailingList.aspx.cs:26" mention of my
local host settings on the server. I have spoken to my host and they have set permissions for the data folder etc but this still prevails. I am positive it
Source Error:
[Code]....
Stack Trace:
[Code]....
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Dec 27, 2010
I have a hosted web application written in asp.net and would like to publish widgets for use in remote websites. For that purpose I believe I want to use embedded widgets over IFrame. I therefore need some client side code to retrieve the widget's HTML from the server. I need assistance in the Client Server communication. If you have sample code to call a .NET webservice (or any other way) so that I can start by embedding this code within the widget's client UI.
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Oct 26, 2010
I want to track equipment between three types of allocations. A piece of equipment can be allocated to an employee, to a customer facility or to a warehouse.
I have an equipment table, employee table, a customer table and warehouse table. Warehouse is where equipment is temporarily held and shared between multiple employees, it is a holding area.
Obviously each equipment item can only be allocated to one employee, customer or warehouse.
My original thinking was to make a table for EquipmentAllocations where it linked the EquipmentID and the id of the employee, customer or warehouse (all guids).
Eventually I will need to query the equipment to see where it is located/allocated. I will also need to query the employees to check what equipment is allocated to them.
I am trying to figure out the best way to handle this and I am looking for some guidance. I am sure many of you have had situations similar to this that you could draw upon to offer up some advice.
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Feb 17, 2011
i have a store procedure that load data in a table of SQL SERVER 2008 from an excel file.the issue is, that the excel file have a column of DATE type, and i want that the system interprets the format in it, no matter what comes in it.dd/MM/yyyy mm/dd/yyyyi have an argue about this with my parnerts, cause i think is imposible, if you don't have a format before the process runs.
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