I am copying the template excel file saved in the server folder in to the same folder with different name. to insert the value..I am able to copy the file but when I try to insert the values it shows sheet!$ could not found. I have given correct sheet name..Only one sheet is added in the spread sheet named as sheet1.still it shows error .My code is given below.Nay idea about this error .I googled but asked me to check the folder and sheet name..it is correct only..please help me
string xxx = "~/temp/" + "Tempfile" + dunsno + DateTime.Today.ToString("dd.MM.yyyy") + ".xlsx";
DirectoryInfo directoryInfo = new DirectoryInfo(Server.MapPath("~/temp/"));
var fileList = directoryInfo.GetFiles();
string newFileName = Server.MapPath("~/temp/" + "Tempfile" + dunsno + DateTime.Today.ToString("dd.MM.yyyy") + ".xlsx");
foreach (FileInfo fleInfo in fileList
{
fleInfo.CopyTo(newFileName, true);
}
string connStr = String.Format(#"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=xxx;Extended Properties=""Excel 12.0 Xml;HDR=YES""");
OleDbConnection MyConnection;
OleDbCommand MyCommand = new OleDbCommand();
MyConnection = new OleDbConnection(#connStr);
MyConnection.Open();
MyCommand.Connection = MyConnection;
string sql = "Insert into [Sheet1$] (id,name) values('3','c')";
MyCommand.CommandText = sql;
MyCommand.ExecuteNonQuery();
MyConnection.Close();
Replace:
string connStr = String.Format(#"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=xxx;Extended Properties=""Excel 12.0 Xml;HDR=YES""");
with
string connStr = String.Format(#"Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=""Excel 12.0 Xml;HDR=YES""", newFileName);
In case if you are still getting error as follows "The Microsoft Access database engine could not find the object..." followed by the sheet name from where you are trying to read data then try [sheetname$].
Related
I want to rename excel sheetname without using Microsoft.Office.Interop.Excel bec Ms Office is not installed on my server .
public void Main()
{
// TODO: Add your code here
var path = Dts.Variables["User::FilePath"].Value.ToString();
//Declare and initilize variables
string fileFullPath = path.ToString();
//Create Excel Connection
string ConStr;
string HDR;
HDR = "YES";
ConStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileFullPath + ";Extended Properties=\"Excel 12.0;HDR=" + HDR + ";IMEX=0\"";
OleDbConnection cnn = new OleDbConnection(ConStr);
//Get Sheet Name
cnn.Open();
DataTable dtSheet = cnn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
string sheetname;
sheetname = "";
//Only read data from provided SheetNumber
dtSheet.Rows[0]["TABLE_NAME"]=Dts.Variables["User::WorksheetName"].Value.ToString();
cnn.Close();
Dts.TaskResult = (int)ScriptResults.Success;
}
what i need to modify in my code to update the worksheet name with the value imported by the variable 'WorksheetName'.
Hi I am having some issues reading a CSV file with the Jet Database engine. I get this message:
The Microsoft Jet database engine cannot open the file 'C:\Users\mikec\Desktop\'. It is already opened exclusively by another user, or you need permission to view its data.
I have permission to access this folder and file. I have also tried putting in my Visual Studio project and still get the same error. This is my code
string path = #"C:\Users\mikec\Desktop\Book1.csv";
string full = Path.GetFullPath(path);
string file = Path.GetFileName(full);
string dir = Path.GetDirectoryName(full);
//create the "database" connection string
string connString = "Provider=Microsoft.Jet.OLEDB.4.0;"
+ "Data Source=\"" + dir + "\\\";"
+ "Extended Properties=\"Excel 8.0;HDR=Yes;FMT=Delimited\"";
//create the database query
string query = "SELECT * FROM " + file;
//create a DataTable to hold the query results
DataTable dTable = new DataTable();
OleDbConnection con = new OleDbConnection(connString);
//create an OleDbDataAdapter to execute the query
OleDbDataAdapter dAdapter = new OleDbDataAdapter(query, con);
try
{
//fill the DataTable
dAdapter.Fill(dTable);
}
catch (InvalidOperationException e)
{
}
I'm confused to why this is happening I've looked around the Internet and cannot find a solution.
It would be great if anyone out there could point me in the right direction.
Thanks.
I have an excel file and an oledb connection to it. When reading data while file is opened in windows, it throws the following error (at Adapter.Fill method).
However, the code runs fine when file is not opened manually.
private System.Data.DataSet GetExcelData()
{
// Create new DataSet to hold information from the worksheet.
System.Data.DataSet objDataset1 = new System.Data.DataSet();
DataTable dt = new DataTable();
try
{
string path = ConfigurationManager.AppSettings["ExcelFilePath"];
//string connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=Excel 12.0;";
string connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=\"Excel 12.0 Xml;HDR=YES;IMEX=1;\"";
OleDbConnection objConn = new OleDbConnection(connectionString);
objConn.Open();
//String strConString = "SELECT * FROM [Data Version5.2$A2:ZZ] where [Status] = 'aa'";//Status
String strConString = "SELECT * FROM [Data Version5.2$A2:ZZ] where [Status] IS NULL OR [Status]='SubReport'";//Status SubReport
OleDbCommand objCmdSelect = new OleDbCommand(strConString, objConn);
OleDbDataAdapter objAdapter1 = new OleDbDataAdapter();
// Pass the Select command to the adapter.
objAdapter1.SelectCommand = objCmdSelect;
// Fill the DataSet with the information from the work sheet.
objAdapter1.Fill(objDataset1, "ExcelData");
objConn.Close();
}
catch (Exception ex)
{
throw ex;
}
return objDataset1;
}
The error message is
Assuming you don't need to write to the file, try adjusting your connection string to include the read only mode (Mode=Read). I have that in all of mine (where I don't need to write to the file) and I've never had a problem reading from workbooks that are already open:
string connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" +
path + ";Mode=Read;Extended Properties=\"Excel 12.0 Xml;HDR=YES;IMEX=1;\"";
I also don't tend to read Excel files as XML, so the Extended Properties for my connection strings are Excel 12.0;HDR=YES;IMEX=1;
string fileName = "e:\\investigation\\report.xlsx";
string SHEETNAME_HERE = "Sheet1";
string connectionString = String.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=\"Excel 8.0;HDR=YES\";", fileName);
OleDbConnection con = new OleDbConnection(connectionString);
StringBuilder stbQuery = new StringBuilder();
stbQuery.Append("SELECT * FROM [" + SHEETNAME_HERE + "]");
OleDbDataAdapter adp = new OleDbDataAdapter(stbQuery.ToString(), con);
DataSet dsXLS = new DataSet();
adp.Fill(dsXLS);
I am using Windows 64-bit and Office 2010 (32-bit) is Could not find installable ISAM.
You need to verify the correct DLL is installed. IE Msexcl40.dll
see (ignore it says access 2k and follow the steps for resolving)
http://support.microsoft.com/kb/209805
This question already has answers here:
Excel "External table is not in the expected format."
(25 answers)
Closed 8 years ago.
Iam trying to open an XLSX file (so that I can create a datatable )
Iam using the the below code.
System.Data.OleDb.OleDbConnection oleDbCon;
System.Data.OleDb.OleDbDataAdapter oleDbDataAd;
oleDbCon = new System.Data.OleDb.OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0;Data Source='" + filePath + "';Extended Properties=Excel 8.0;");
but when file path contains a file with extension xlsx , i get an error
"External table is not in the expected format."
Above code works fine when file is of extention xls.
Do I have to change the connection string ?
Any help ?Thanks in Advance.
Changed the connection string to
public static string connStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source="
+ path + ";Extended Properties=Excel 12.0;";
see Excel "External table is not in the expected format."
.xlsx has different connectionstrings
string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" +"Data Source="
+ Path +";"+"Extended Properties=Excel 8.0;";
OleDbConnection conn = new OleDbConnection(strConn);
conn.Open();
string strExcel = "";
OleDbDataAdapter myCommand = null;
DataSet ds = null;
strExcel="select * from [sheet1$]";
myCommand = new OleDbDataAdapter(strExcel, strConn);
ds = new DataSet();
myCommand.Fill(ds,"table1");
return ds;