Read An Excel File And Display A Particular Cell?

Aug 7, 2009

Here is what I want to do. If I learn this basic step, I can take it further. I need to create a web form that has a textbox for user input and a file upload control. The user enters a cell in the text box (A5 for example), selects the excel file to upload, and then clicks the submit button.

I need to display the cell contents in the uploaded excel file for the cell the user put in the textbox (cell A5 in this example).



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Databases :: Some Of The Cell Value Can't Read From Excel?

Aug 30, 2010

Im 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?

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Databases :: OleDbDataReader Can't Read Excel Cell With Bracket

May 21, 2010

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

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Oct 8, 2010

I 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.

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[code]....

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May 27, 2010

I have created an excel sheet from datatable using function. I want to read the excel sheet programatically using the below connectionstring. This string works fine for all other excel sheets but not for the one i created using the function. I guess it is because of excel version problem.

OleDbConnection conn= new OleDbConnection("Data Source='" + path +"';provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=Excel 8.0;";);

which i can create an excel sheet such that it is readable again using above query. I cannot use Microsoft InterOp library as it is not supported by my host. I have even changed different encoding formats. Still it doesnt work

[code]....

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Nov 5, 2009

I want to show Gridview cell like Excel cell, I don't want to show Textbox.

Am writting this code in gridview.

<asp:TemplateField HeaderText ="1 St Week">
<ItemTemplate >
<asp:Label ID ="lbl1week" runat ="server" Text ="Present"></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID ="txt1week" runat ="server" ></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>

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Oct 13, 2010

I a now Porting a data from Uploaded Excel File to database. In that, I need to check "Sheet name" Of that Excel file Whether it is Sheet1 or Sheet2 or something else...

how to Check/Read Excel Sheet name at runtime..

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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();

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Apr 2, 2011

using below code im reading excel sheet data by specifying the sheet name as [Project1$] but, how do i call the excel sheet without specifying the sheet name so, that it will ready any files.

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 [Project1$]";

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I have an issue when I use oledb command to read excel file. For some of excel columns, if first 10 rows for those columns are empty, it will assume rest rows for those columns are empty even there some text there.

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Jan 12, 2011

I have a problem that I have been trying to solve the past two days, but I cannot figure it out...I have a folder which will have 60-70 Excel Files or CSV Files (they are right now). There are no headers in them, but they all have the same # of columns and the columns are in the same order in each fileI need to read each file in the folder, grab the data from the file and put it in a Database file. So all files will be read and then the data from them I guess put in a DataSet and then put into a Database (SQL).

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Jan 15, 2010

I have developed an application where I need to create a page to read data from Excel File and then update it to the database. The code that I wrote works only when the application runs from my machine. When I deployed the application to the server it gave an error- 'C:PRFileIimport_File.xls' 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. here is mu code -

protected void InsertData(object sender, EventArgs e)
{
OleDbConnection oConn = new OleDbConnection
(@"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\PuertoRicoFile\Puertorico_Iimport_File.xls ; Extended Properties=Excel 8.0 ");
OleDbCommand oCmd = new OleDbCommand("select * from [Puertorico_Data$]", oConn);
oConn.Open(); //Here [Puertorico_Data$] is the name of the sheet in the Excel file where the data is present
OleDbDataReader oleDbReader = oCmd.ExecuteReader();
string AgentIP = "";
string TagName = "";
string Status = "";
string Severity = "";
int EventCount = 0;
string EarliestEvent = "";
string LatestEvent = "";
while (oleDbReader.Read())
{
AgentIP = (string)oleDbReader[0]; // valid(oleDbReader, 0);//Here we are calling the valid method
TagName = (string)oleDbReader[1]; //valid(oleDbReader, 1);
Status = (string)oleDbReader[2]; //valid(oleDbReader, 2);
Severity = (string)oleDbReader[3]; //valid(oleDbReader, 3);
EventCount = Convert.ToInt32(oleDbReader[4]); //oleDbReader[0]; //valid(oleDbReader, 4);
EarliestEvent = (string)oleDbReader[8]; //validate(oleDbReader, 8);
EarliestEvent = EarliestEvent.Substring(0, 19);
LatestEvent = (string)oleDbReader[9]; //validate(oleDbReader, 9);
LatestEvent = EarliestEvent.Substring(0, 19);
InsertDataIntoSql(AgentIP, TagName, Status, Severity, EventCount, EarliestEvent, LatestEvent);
}
SqlConnection mySQLconnection = new SqlConnection(ConfigurationManager.ConnectionStrings["IssNetworkReportingSystemConnString"].ConnectionString);
mySQLconnection.Open();
SqlCommand cmdSql = new SqlCommand("AddMonth_Event_TotalInfo_for_Puertorico", mySQLconnection);
cmdSql.CommandType = CommandType.StoredProcedure;
dbReader = cmdSql.ExecuteReader();
dbReader.Close();
cmdSql = new SqlCommand("AddQtr_Event_TotalInfo_for_Puertorico", mySQLconnection);
cmdSql.CommandType = CommandType.StoredProcedure;
dbReader = cmdSql.ExecuteReader();
dbReader.Close();
oConn.Close();
lblMsg.Text = "Data Imported Sucessfully";
lblMsg.ForeColor = System.Drawing.Color.Green;
}
public void InsertDataIntoSql(string agentIP, string tagName,
string Stat,string severity,int eventCount, string eEvent, string lEvent)
{//inserting data into the Sql Server
SqlConnection mySQLconnection = new SqlConnection(ConfigurationManager.ConnectionStrings["IssNetworkReportingSystemConnString"].ConnectionString);
mySQLconnection.Open();
SqlCommand sqlSelect = new SqlCommand("SELECT SeverityID from Severity where SeverityDesc=@SeverityDesc",mySQLconnection);
sqlSelect.CommandType = CommandType.Text;
sqlSelect.Parameters.Add("@SeverityDesc", SqlDbType.NVarChar).Value = severity;
dbReader = sqlSelect.ExecuteReader();
int severityId = Convert.ToInt32(dbReader.Read());
dbReader.Close();
SqlCommand sqlInsert = new SqlCommand("Insert into IdsData_Puertorico(AgentIP,TagName,Status,SeverityID,EventCount,EarliestEvent,LatestEvent)" +
" values (@AgentIP,@TagName,@Status,@SeverityID,@EventCount,@EarliestEvent,@LatestEvent )" ,mySQLconnection);
sqlInsert.CommandTimeout = 0; //timeout unlimited
sqlInsert.CommandType = CommandType.Text;
sqlInsert.Parameters.Add("@AgentIP", SqlDbType.NVarChar).Value = agentIP;
sqlInsert.Parameters.Add("@TagName", SqlDbType.NVarChar).Value = tagName;
sqlInsert.Parameters.Add("@Status", SqlDbType.NVarChar).Value = Stat;
sqlInsert.Parameters.Add("@SeverityID", SqlDbType.Int).Value = Convert.ToInt32(severityId);
sqlInsert.Parameters.Add("@EventCount", SqlDbType.Int).Value = Convert.ToInt32(eventCount);
sqlInsert.Parameters.Add("@EarliestEvent", SqlDbType.DateTime).Value = DateTime.Parse(eEvent);
sqlInsert.Parameters.Add("@LatestEvent", SqlDbType.DateTime).Value = DateTime.Parse(lEvent);
sqlInsert.CommandType = CommandType.Text;
sqlInsert.ExecuteNonQuery();
mySQLconnection.Close();
}

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Databases :: Unable To Read Image From Excel File

Nov 18, 2010

Iām 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]....

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DataSource Controls :: Read All Rows In One Column From Excel File

Jan 10, 2010

I need a way to read all the rows in one column from an Excel file that the user picks from a fileupload control. I tried saving the excel file on the webserver with the upload control and then opening it with a OleDbConnection but that fails when running it from the webserver and gives the error:

Request for the permission of type 'System.Data.OleDb.OleDbPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

This works fine when just running it localhost, so i figured it might be a problem with security level at the webserver which i cant change. Instead i tried doing it with a streamreader direct from the fileupload control and because theres no need for saving the excel file on the server, but im not sure how to query the rows i need this way.

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I need to upload an excel file using a web application. Then I need t oread it in memory without saving it on the server.

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Databases :: Read An Excel File And Show Data From 2 Columns?

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i dont know iam placing my query correct place or not but i need ur's help, Iam Reading and storing one single excel file Successfully But

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Insert Value Into An Excel Sheet In A Particular Cell Using Excel.WorkBook

Mar 8, 2007

Im in problem im working on windows application n to post my problem here i ddint find any onther alternate solution so i have to do this ,

ne ways im working on an windows application i need to export the data ebtered into the textbox1 to a particular cell of an excel sheet and this will generate a value in an another excel sheet so i hav to read that value from that cell and display bac to the another textbox of my application from that excel file so how to do it and i have been adviced to dis by using excel workbook and im not much aware of it so wat i hav did till now is in my application i hav added "excel object library 10" by doin "add reference" in "com components" and written like this

using Excel;

thats the namsespace which i have used, so wat i hav to do nxt to create an workbook and to transfer my textbox value to aprticluar cell of the excel sheet

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