I am working on read,write excel sheets.I have an excel sheet to update and unfortunately it does not have header columns.So I am stuck how to update this?
Is it possible to update excel sheet without header? If yes than plz help how to update?
thanks in advance
Try using excel data reader from Codeplex and check how it returns the data set. Also try to manipulate dataset based on your need
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I am using epplus to create excel with chart where I have added 2 column charts in excel sheet and we are using this excel sheet as template.
Now, If any of the chart doesnt have data then I want to hide/delete the chart from the sheet while downloading. But, I am unable to find such option.
Below is my code
ExcelDrawing excelDrawing = excelWorksheet.Drawings["Chart1"];
After this I am not getting any option in excelDrawing object to hide/show/delete OR else do I need to go in different way ?
Any help on this appreciated !
so what I'm trying to do is fill a listBox with information from excel cells.
When I click button1 it brings up new form with listbox, now what i need is to add each cells that have info in them in Colon A in to listBox. Can anyone explain me how to do that ? any type of information would be help full. All so I'm not using OLEDB i have pre-defined file path to excel document. All so code sample would be grate.
Thanks in advance.
I would suggest using EPPlus for reading Excel files
I dont want intermittent of using Gridview or Datagrid controls. I want directly to export a DataTable data to an Excel in straight forward.
Is there a way to export by querying the DataTable and export the same into a new Excel.
Please HELP!!
Take a look at this you can do it with XSLT
http://www.codedigest.com/Articles/ASPNET/13_Export_dataset_to_Excel_with_XSLT_in_AspNet_20.aspx
I have created a function to read an excel sheet using OLEDb. I can make the connection and read the excel sheet.
With DbDataReader and a while loop using Read() method I retrieved all cell data from an excel sheet.
I want to check the alignment info of each cell. If a cell is left-aligned, I will pick data from those left-aligned cells.
How can I do that?
Sorry It is a stupid question but I really need it.
Thanks
You can't do that with Excel OleDb provider; cell alignment isn't exposed. The OleDb provider makes the Excel spreadsheet mimic a database table and database columns don't have alignment.
You'll have to use Excel interop if you need to that. See this question for help on that.
I have the excel sheet, I want to keep it as datasource to the gridview. gridview will be editable so whatever the data updated sholud be write to again in excel sheet with respected location in sheet.
How can I do this?
You could use the Jet driver to select from the spreadsheet via OLEDB. Your spreadsheet will need to be laid out in a table-like fashion, and you can have some painful problems with type guessing, but this may work for your situation.
Connection string samples here