My web page contains a file upload control that is used to select excel file. What my code does; is to read the content of that file and store its content to DB. Right now, I save this file to server and read its content using OLEDB.I want to know is there any way i can read the content without saving it on the server?
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I have datatable with records and i have existng Excel file in my application temp folder i want to export datatable records in this excel file workbook and i want to convert this excel workbook into byte array and i want to send this byte array in reponse.write to user to give download excel file option
View 6 Repliesi had 2 columns in the excel file one is SNo and another Description
looks like below
Sno Description
1 1/2 Feet
2 1/5 Feet
3 20
4 30
i read the data from this file using below code
string strFileName = FileUpload1.PostedFile.FileName;
string connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + strFileName + ";" + "Extended Properties=Excel 8.0;";
OleDbConnection objConn = new OleDbConnection(connectionString);
objConn.Open();
String strConString = "SELECT * FROM [Product Classification 5$]";
//where date = CDate('" + DateTime.Today.ToShortDateString() + "')";
OleDbCommand objCmdSelect = new OleDbCommand(strConString, objConn);
// Create new OleDbDataAdapter that is used to build a DataSet
// based on the preceding SQL SELECT statement.
OleDbDataAdapter objAdapter1 = new OleDbDataAdapter();
// Pass the Select command to the adapter.
objAdapter1.SelectCommand = objCmdSelect;
// Create new DataSet to hold information from the worksheet.
DataSet objDataset1 = new DataSet();
objAdapter1.Fill(objDataset1, "ExcelData");
but in it doesnt read the Description data of 20 & 30 because somebody said if the first cell value is string type then all the column should be string but in mycase its coming as mixed(alpha & numeric), so that it cant read the data, i tried to convert the column as Text then also the same problem continues,
I want to create a application which can be able to read data from excel sheet and process and print it.
View 3 RepliesI have 3 excel files having uniqe column Name JobNo. i want to develop a web page containing serach option based on Jobno.
User just type the jobno and press on search button corresponding record should be display on grid view.record may present any of the excel sheet.how can i acheive this.
I am develping an application that integrates with an RFID kit. The problem is, the kit comes with an .cs class that accepts data stored in a byte array however, each information stored in the array respresents an int. I wanted to store String information in each array but, my research suggest that a String itself can be converted to a byte array and not a byte....here the code from the .cs class:
byte BlockNo = 0;
byte[] BlockData = new byte[16];
byte ReturnCode = 0;
[code]....
Each t_b*.text respresents an int. Is there a way I can stored a String in a single byte block?
I have an Excel file called Products.xls .I have Columns A and B, with the titles NAME and QUANTITY.The name of the sheet is SHEET1.The file has about 40 lines.How do i show these data on a Gridview or Listview ?
View 4 RepliesI have 1 excel file 2007 that contains 10 sheets
First sheet Name : Remarks that contain only one column for remarks
the other 9 sheets name : Date1 Date2 Date3 Date4 Date5 Date6 Date7 Date8 Date9
each of the 9 sheets has 2 columns: Product Description and Qantity
I am using
[code]....
If I use Microsoft.Jet.OLEDB.4.0 to retreive for example named range or sheet from Excel and use it as data source for some server control on the ASP page, everything works fine. But when I try to get table from Excel like this: "select * from [Table1]", debugger complains that database engine could not find object Table1. So how should I reference Table1 in Excel file so that the database engine could find it?
View 2 RepliesIm reading some data from the excel file, using below code
objBusy = new BusinessLogic();
string strFileName = FileUpload1.PostedFile.FileName;
string connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + strFileName + ";" + "Extended Properties=Excel 8.0;";
OleDbConnection objConn = new OleDbConnection(connectionString);
objConn.Open();
String strConString = "SELECT * FROM [Product1$]";
//where date = CDate('" + DateTime.Today.ToShortDateString() + "')";
OleDbCommand objCmdSelect = new OleDbCommand(strConString, objConn);
// Create new OleDbDataAdapter that is used to build a DataSet
// based on the preceding SQL SELECT statement.
OleDbDataAdapter objAdapter1 = new OleDbDataAdapter();
// Pass the Select command to the adapter.
objAdapter1.SelectCommand = objCmdSelect;
// Create new DataSet to hold information from the worksheet.
DataSet objDataset1 = new DataSet();
objAdapter1.Fill(objDataset1, "ExcelData");
after this if i looks on the DataSet i see some of the cell value not read from the Excel file, what was the problem and how to resolve this?
i need to edit this code to read two worksheet from excel ?
i have this code to read the first sheet from work sheet
[Code]....
I want to read Excel file . how to do it in simple way.
View 2 RepliesI have read the excel in asp.net. I am using OledbDatareader for read the column name.
[Code]....
Now my problem is the "date" field. If Excel sheet having column name "Date" then i got the error. i could not use the Column index because its also not fix. How can i ignore the upper case charactors in column name ?
i have been searching a lot but i didn't find my specefic result, my question is: how can i read excel sheet from asp.net using vb and how can i insert values into a worksheet from my web page
View 4 Repliesi want to ask whether we can read and write excel in website by using asp.net i don't want user to download the excel file and after edit upload again to website. what i want is user can read the excel file in website, after they edit, save the excel
View 4 Repliesi can't read picture from file excel in code asp.net
View 2 RepliesI 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();
i'm trying to read an excel file and get data on a row by row basis. Since after converting the pdf file into an excel file, the formatting went a bit haywire but if read row by row, i'm still able to retrieve the original data.
As I am unable to generate the excel file using a single worksheet, i have multiple sheets in the excel file. I also need help on reading multiple sheets.
Currently i am onli able to get data via columns but due to the formatting going haywire, i gave up on it.
How do I read excel(with many worksheets) using asp.net c# and load the data into oracle database?
View 2 RepliesI have a excel sheet and I want to make the 2nd row my header column and read the data from the 3rd row, considering 2nd row is the Column name.
View 1 RepliesIām trying to read images from an excel file using OleDbDataReader. My excel file has 6 columns of data, the first 5 are all text but the last is image. While Iām reading the record, It's doing fine on the first 5 columns but return me with a for the sixth column.
Here is my demonistration code:
[code]....
I'm trying to read Excel file header column name. Then I can query data from excel using SELECT statement. For instance. column name is name,
department and email. Then I want this three header name being detected using code and put in select statement. User no need to care about the
header name and we can use code to read the header name instead of hardcode header name inside SELECT statement.
I have an excel header that has the following header title : "REMARKS (i.e. awarded etc.)"
but it seems that it can't read the cell with the brackets or it is there is a certain length of the excel header?
While reader.Read()
Dim DataRow As DataRow = dtDataTable.NewRow()
DataRow("Remarks") = Trim(reader("REMARKS i.e. awarded etc.").ToString)
dtDataTable.Rows.Add(DataRow)
End While
Is is possible to write to the http response stream from a dynamically created bitmap using the Response.Write/WriteFile without saving the image to the hard drive?
View 4 RepliesI 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.
