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oledbConn.ServerVersion' threw an exception of type 'System.InvalidOperationException

In MVC Application While Connect with Excel gives an error
I just create a connection with excel and when try to open it's give error
oledbConn.ServerVersion' threw an exception of type
'System.InvalidOperationException
public DataTable Read(string filePath)
{
string extension = System.IO.Path.GetExtension(filePath).ToLower();
string connString = string.Empty;
if (extension.Trim() == ".xls")
{
connString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties='Excel 8.0;HDR=YES'";
}
else if (extension.Trim() == ".xlsx")
{
//connString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filePath + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=2\"";
//connString = #"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filePath + ";Extended Properties=Excel 12.0;Persist Security Info=False";
connString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties='Excel 8.0;HDR=YES'";
}
connString = string.Format(connString, filePath);
var dataTable = ConvertXSLXtoDataTable(filePath, connString);
return dataTable;
}
DataTable ConvertXSLXtoDataTable(string strFilePath, string connString)
{
OleDbConnection oledbConn = new OleDbConnection(connString);
DataTable dt = new DataTable();
try
{
oledbConn.Open();
using (OleDbCommand cmd = new OleDbCommand("SELECT * FROM [Sheet1$]", oledbConn))
{
OleDbDataAdapter oleda = new OleDbDataAdapter();
oleda.SelectCommand = cmd;
DataSet ds = new DataSet();
oleda.Fill(ds);
dt = ds.Tables[0];
}
}
catch
{
}
finally
{
oledbConn.Close();
}
return dt;
}

How to Insert more than 1000 record using SqlBulkCopy

I need to insert more than 1000 records into SQL Server. But using my code I am able to insert only 1000 records. Please help me.
using (SqlBulkCopy s = new SqlBulkCopy(dbConnection,SqlBulkCopyOptions.UseInternalTransaction, null))
{
s.DestinationTableName = TableName;
s.BatchSize = 10000;
s.BulkCopyTimeout = 1800;
foreach (var column in dt.Columns)
{
s.ColumnMappings.Add(column.ToString(), column.ToString());
}
s.WriteToServer(dt);
}

Below is the real time working code which i used in my project to insert the bulk data from excel to the SQL server
C# code:
public static DataSet Bindgrid_StoreInSQL(string path)
{
string strFileType = Path.GetExtension(path).ToLower();
string connString = "";
if (strFileType.Trim() == ".xls")
{
connString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=2\"";
}
else if (strFileType.Trim() == ".xlsx")
{
connString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=2\"";
}
string query = "SELECT * FROM [Sheet1$]";
OleDbConnection conn = new OleDbConnection(connString);
OleDbCommand cmd = new OleDbCommand(query, conn);
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
DataTable Exceldt = ds.Tables[0];
//creating object of SqlBulkCopy
SqlBulkCopy objbulk = new SqlBulkCopy(OneStopMethods_Common.constring_Property);
//assigning Destination table name
objbulk.DestinationTableName = "Tern_boq";
objbulk.ColumnMappings.Add("ID", "ID");
objbulk.ColumnMappings.Add("Bill_No", "Bill_No");
objbulk.ColumnMappings.Add("Page_No", "Page_No");
objbulk.ColumnMappings.Add("ItemNo", "ItemNo");
objbulk.ColumnMappings.Add("Description", "Description");
objbulk.ColumnMappings.Add("BOQ_Qty", "BOQ_Qty");
objbulk.ColumnMappings.Add("UNIT", "UNIT");
objbulk.ColumnMappings.Add("Category1", "Category1");
objbulk.ColumnMappings.Add("Category2", "Category2");
objbulk.ColumnMappings.Add("Category3", "Category3");
objbulk.ColumnMappings.Add("Estimated_UnitRate", "Estimated_UnitRate");
objbulk.ColumnMappings.Add("Estimated_Amount", "Estimated_Amount");
//inserting Datatable Records to DataBase
conn.Open();
objbulk.WriteToServer(Exceldt);
SqlDatabase obj = new SqlDatabase(OneStopMethods_Common.constring_Property);
string selquery = " select * from Tern_boq";
return obj.ExecuteDataSet(CommandType.Text, selquery);
}
Its works fine,Hope this can give you some idea,Please let me know your your thoughts or suggestions

Arabic letter data save to database as "?"

I'm uploading data to DB table using excel sheet
I'm uploading data to ProductStatisticsTemp table
In that table I have following columns
Product_ID
ProductNameEn
ProductNameAr
this the upload data POST method
[HttpPost]
public ActionResult FileUpload(HttpPostedFileBase file)
{
if (Request.Files["file"].ContentLength > 0)
{
string fileExtension = System.IO.Path.GetExtension(Request.Files["file"].FileName);
if (fileExtension == ".xls" || fileExtension == ".xlsx")
{
string fileLocation = Server.MapPath("~/Content/ExcelFiles/") + Request.Files["file"].FileName;
if (System.IO.File.Exists(fileLocation))
{
System.IO.File.Delete(fileLocation);
}
Request.Files["file"].SaveAs(fileLocation);
string excelConnectionString = string.Empty;
excelConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileLocation + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=2\"";
//connection String for xls file format.
if (fileExtension == ".xls")
{
excelConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + fileLocation + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=2\"";
}
//connection String for xlsx file format.
else if (fileExtension == ".xlsx")
{
excelConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileLocation + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=2\"";
}
//Create Connection to Excel work book and add oledb namespace
OleDbConnection excelConnection = new OleDbConnection(excelConnectionString);
excelConnection.Open();
DataTable dt = new DataTable();
dt = excelConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
if (dt == null)
{
return null;
}
String[] excelSheets = new String[dt.Rows.Count];
int t = 0;
//excel data saves in temp file here.
foreach (DataRow row in dt.Rows)
{
excelSheets[t] = row["TABLE_NAME"].ToString();
t++;
}
OleDbConnection excelConnection1 = new OleDbConnection(excelConnectionString);
string query = string.Format("Select * from [{0}]", excelSheets[0]);
using (OleDbDataAdapter dataAdapter = new OleDbDataAdapter(query, excelConnection1))
{
dataAdapter.Fill(ds);
}
}
if (fileExtension.ToString().ToLower().Equals(".xml"))
{
string fileLocation = Server.MapPath("~/Content/ExcelFiles") + Request.Files["FileUpload"].FileName;
if (System.IO.File.Exists(fileLocation))
{
System.IO.File.Delete(fileLocation);
}
Request.Files["FileUpload"].SaveAs(fileLocation);
XmlTextReader xmlreader = new XmlTextReader(fileLocation);
// DataSet ds = new DataSet();
ds.ReadXml(xmlreader);
xmlreader.Close();
}
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
string conn = ConfigurationManager.ConnectionStrings["dbconnection"].ConnectionString;
SqlConnection con = new SqlConnection(conn);
string query = "Insert into ProductStatisticsTemp(Product_ID,ProductNameEn,ProductNameAr) Values('" + ds.Tables[0].Rows[i][0] + "','" + ds.Tables[0].Rows[i][1] + "','" + ds.Tables[0].Rows[i][2] )";
con.Open();
SqlCommand cmd = new SqlCommand(query, con);
cmd.ExecuteNonQuery();
con.Close();
}
}
return RedirectToAction("FileUpload", "FileUpload");
}
But in here data saving smoothly , but ProductNameAr fields Arabic letters values save as "?"
ex: If excel value حساب التوفير للاستثمار Albrka
then its saving in database table as ???? ??????? ????????? Albrka
How to save as exact format in the excel sheet
ps. this ProductNameAr data type in Database table is NVARCHAR

You use non-Unicode string literals 'value' when you should use Unicode literals in the form N'value'
You better rewrite as parameterized SqlCommand passing the values using AddWithValue
string query = "Insert into ProductStatisticsTemp(Product_ID,ProductNameEn,ProductNameAr) Values(#Product_ID,#ProductNameEn,#ProductNameAr)";
SqlCommand cmd = new SqlCommand(query, con);
cmd.Parameters.AddWithValue("#Product_ID", ds.Tables[0].Rows[i][0]);
...etc...
You don't need to re-create and open the SqlConnection inside the loop

Unable to read Excel worksheet with OLEDB driver

I have an excel file with one worksheet. I'm using MicroSoft.Office.Interop.Excel to read this file and then perform further execution.
Here is my code:
connString = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" + strNewPath + ";Extended Properties=Excel 8.0;";
conn = new OleDbConnection(connString);
if (conn.State == ConnectionState.Closed)
conn.Open();
System.Data.DataTable dt = null;
dt = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
But, worksheet is not in the data table object.

Where you have mentioned the table(WorkSheet) name ??
DataTable schemaTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables,
new object[] {null, null, null, "TABLE"});
//Get the First Sheet Name
string firstSheetName = schemaTable.Rows[0][2].ToString();
//Query String
string sql = string.Format("SELECT * FROM [{0}],firstSheetName);
Refer here MSDN
In case if you want to play around refer Reading Excel files from C#

OleDbConnection oconn = new OleDbConnection(#"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileName + "; Extended Properties=Excel 12.0;");
//After connecting to the Excel sheet here we are selecting the data
//using select statement from the Excel sheet
oconn.Open();
DataTable dbSchema = oconn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
if (dbSchema == null || dbSchema.Rows.Count < 1)
{
throw new Exception("Error: Could not determine the name of the first worksheet.");
}
string firstSheetName = dbSchema.Rows[0]["TABLE_NAME"].ToString();
string tbstrat = "M1000";
OleDbCommand cmd = new OleDbCommand();
cmd.Connection = oconn;
cmd.CommandText = "select * from [" + firstSheetName + "B8:" + tbstrat + "]";
OleDbDataAdapter adap = new OleDbDataAdapter();
DataTable dt = new DataTable();
adap.SelectCommand = cmd;
adap.Fill(dt);
oconn.Close();

Even you can try this
var adapter = new OleDbDataAdapter("SELECT * FROM [workSheetNameHere$]", connectionString);
var ds = new DataSet();
adapter.Fill(ds, "NameHere");
DataTable data = ds.Tables["NameHere"];

how to import multiple excel sheets into 2 sql server tables?

Am having one excel file with 2 different worksheets as fundmodelrate and project.Now I want to import these 2 different sheet values into 2 different sql tables(k2_fundmodelrate,k2_project).I can able to do import only if am working with 1 sheet and and 1 table,but I want two sheets values to be imported on two tables at the same time on button click event.
My code below:
private String strConnection = "Data Source=kuws4;Initial Catalog=jes;User ID=sa;Password=******";
protected void btnSend_Click(object sender, EventArgs e)
{
string path = fileuploadExcel.PostedFile.FileName;
string excelConnectionString = #"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:\fmr.xls;Extended Properties=Excel 12.0;Persist Security Info=False";
OleDbConnection excelConnection = new OleDbConnection(excelConnectionString);
OleDbCommand cmd = new OleDbCommand("Select * from [FundModelRate$]", excelConnection);
//OleDbCommand cmd1 = new OleDbCommand("Select * from [FundModelRate$], [Project$]", excelConnection);
excelConnection.Open();
OleDbDataReader dReader;
dReader = cmd.ExecuteReader();
SqlBulkCopy sqlBulk = new SqlBulkCopy(strConnection);
sqlBulk.DestinationTableName = "K2_FundModelRate";
// sqlBulk.DestinationTableName = "K2_Project";
sqlBulk.WriteToServer(dReader);
excelConnection.Close();
}

I think the only way is to loop through your two sheets.
Have a look at This post. This will help you get the sheet names.
When you have the sheet names, you can then just loop through them and then load them into SQL.
Maybe this can help you:
OleDbConnection objConn = null;
System.Data.DataTable dt = null;
string excelConnection = "";
if(strFile.Trim().EndsWith(".xlsx"))
{
excelConnection = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=\"Excel 12.0 Xml;HDR=YES;IMEX=1\";", strFile);
}
else if(strFile.Trim().EndsWith(".xls"))
{
excelConnection = string.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=1\";", strFile);
}
objConn = new OleDbConnection(excelConnection);
objConn.Open();
dt = objConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
String[] excelSheets = new String[dt.Rows.Count];
int i = 0;
foreach(DataRow row in dt.Rows)
{
excelSheets[i] = row["TABLE_NAME"].ToString();
i++;
}
for(int j=0; j < excelSheets.Length; j++)
{
OleDbCommand cmd = new OleDbCommand("Select * from " + excelSheets[j], excelConnection);
excelConnection.Open();
OleDbDataReader dReader;
dReader = cmd.ExecuteReader();
SqlBulkCopy sqlBulk = new SqlBulkCopy(strConnection);
sqlBulk.DestinationTableName = "YourDestinationTableName";
sqlBulk.WriteToServer(dReader);
excelConnection.Close();
}
Note: Not tested

public void importdatafromexcel(string excelfilepath)
{
//declare variables - edit these based on your particular situation
string ssqltable = "test_data";//sql table name
// make sure your sheet name is correct, here sheet name is sheet1, so you can change your sheet name if havedifferent
string myexceldataquery = "select * from [Sheet1$]";
try
{
//create our connection strings
string sexcelconnectionstring = #"provider=microsoft.jet.oledb.4.0;data source=" + excelfilepath + ";extended properties=" + "\"excel 8.0;hdr=yes;\"";
string ssqlconnectionstring = "server=ServerName;user id=sa;password=sa;database=Databasename;connection reset=false";
//execute a query to erase any previous data from our destination table
string sclearsql = "Delete from " + ssqltable;
SqlConnection sqlconn = new SqlConnection(ssqlconnectionstring);
SqlCommand sqlcmd = new SqlCommand(sclearsql, sqlconn);
sqlconn.Open();
sqlcmd.ExecuteNonQuery();
sqlconn.Close();
//series of commands to bulk copy data from the excel file into our sql table
OleDbConnection oledbconn = new OleDbConnection(sexcelconnectionstring);
OleDbCommand oledbcmd = new OleDbCommand(myexceldataquery, oledbconn);
oledbconn.Open();
OleDbDataReader dr = oledbcmd.ExecuteReader();
SqlBulkCopy bulkcopy = new SqlBulkCopy(ssqlconnectionstring);
DataTable dt = new DataTable();
bulkcopy.DestinationTableName = ssqltable;
bulkcopy.WriteToServer(dr);
oledbconn.Close();
}
catch (Exception)
{
throw;
}
}
/*---------- call that file on buttonclick through OpenDialogBox--------*/
private void button1_Click(object sender, EventArgs e)
{
DialogResult result = openFileDialog1.ShowDialog();
if (result == DialogResult.OK) // Test result.
{
string strfilename = openFileDialog1.InitialDirectory + openFileDialog1.FileName;
importdatafromexcel(strfilename);
}
Console.WriteLine(result);
MessageBox.Show("Exported to SQL successfully");
}