I want to read write excel file in my application without installing the office on my server. Means my server don't have any excel (MS office) installation. Is it necessory to install the office on server to excute the program of read or write the excel file.
My web app is allowing the user to load a column of data from an Excel spreadsheet. For whatever reason, as it parses the data, fields that are just integers are coming up as System.DBNull. (Code in VB.NET but I work with C# as well, so feel free to post C# solutions)
dataRow(0) is System.DBNull when the Excel file has a number in Column A. Here's what the Excel looks like
Column A 100S200 WEIRD ABCDEFG 123456 100S12791 119655902 100S12792 105E17530 123456 and 119655902 come through as DBNull
I have programmed a script to upload image files from users computer to my server. It works fine for up to about 4MB files, larger have the 'connection reset' error which I believe can be resolved easily in the web.config file.
Anyway, I would like to show a status bar to tell the user how much of the file has been uploaded so they don't try repeatedly clicking upload button thinking nothings working -
First one will be: I've installed MySql, Query broswer, and ODBC connector (not sure what this one does. Can anyone explain?)
Now, when im dragging a new DataGridView into the form, and try to connect it to a MySql database, i can't seem to find MySql in the databases list... why is that?
Second question, assuming everything works fine, how can i upload the database to a server and use it there?
I can think of two problems trying to do this : (1) Im not sure where my Database files are stored at... (for some reason, they are not found in MySql/Data... this folder is completly absent)
(2) While working with ACCESS, all i had to do is to point the .aspx page that did the connecting to the location of the .mdb file, but now, each time i want to reach my database, i need to send the page to the server (localhost). How will i create a connection to my database, when its on another server, in the code page ? (small code example would be nice).
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 .
Is it possible to show only few characters in gridview column. Lets say there are 5 columns in the gridview and one of the field is the description field. assume description field is too long. So What i want is to show that description field value to 50 character limit.
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.
Not sure how to best accomplish this task. I do have several reports to make in Excel every day. The reports do have a shhet for every week and one column for each day in week. What is the best way to get the excel auto update and get data from the SQL table? As for now I run a query on a webpage and coying the data in to the excel sheet manually. Should I try making a database connection within the excel sheet? Should I try having a ADO connection working in .NET? I really donīt know where to begin.
I have a web app where user uploads a file.ile is saved in server locally and I want to read some data from it.Currently my development server has office 2003.So do I need office 2007 in order to be able to read an excel from office 2007 ?
Microsoft.Office.Interop.Excel.Application excelApp = new Microsoft.Office.Interop.Excel.Application(); Microsoft.Office.Interop.Excel.Workbook wrkBook; // = new Microsoft.Office.Interop.Excel.Workbook();