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Excel to DataGridView

Additional information: The Microsoft Office Access database engine could not find the object 'C:\Users\username\Documents\sampleData.xls'. Make sure the object exists and that you spell its name and the path name correctly.
The Error is highlighted at
theDataAdapter.Fill(spreadSheetData);
Here's the sample data I used (tried in .csv , .xls , .xlsx )
Name Age Status Children
Johnny 34 Married 3
Joey 21 Single 1
Michael 16 Dating 0
Smith 42 Divorced 4
Here's the code associated:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Data.OleDb;
namespace uploadExcelFile
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void btnImport_Click(object sender, EventArgs e)
{
var frmDialog = new System.Windows.Forms.OpenFileDialog();
if (frmDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
string strFileName = frmDialog.FileName;
System.IO.FileInfo spreadSheetFile = new System.IO.FileInfo(strFileName);
scheduleGridView.DataSource = spreadSheetFile.ToString();
System.Diagnostics.Debug.WriteLine(frmDialog.FileName);
System.Diagnostics.Debug.WriteLine(frmDialog.SafeFileName);
String name = frmDialog.SafeFileName;
String constr = String.Format(#"Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=""Excel 12.0 Xml;HDR=YES""", frmDialog.FileName);
OleDbConnection myConnection = new OleDbConnection(constr);
OleDbCommand onlineConnection = new OleDbCommand("SELECT * FROM [" + frmDialog.FileName + "]", myConnection);
myConnection.Open();
OleDbDataAdapter theDataAdapter = new OleDbDataAdapter(onlineConnection);
DataTable spreadSheetData = myConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
theDataAdapter.Fill(spreadSheetData);
scheduleGridView.DataSource = spreadSheetData;
}
}
}
}
scheduleGridView is the DataGridViews name, & btnImport is the name for the import Button.
I've installed 2007 Office System Driver: Data Connectivity Components; which gave me the AccessDatabaseEngine.exe, but from there I've been stuck here without understanding how to get around this. It should go without saying that the filepath is correct in its entirety. There is no odd characters in the path name either (spaces, underlines, etc)
Mini Update :: (another dead end it seems like)
Although the initial error says, "could not find the object 'C:\Users\username\Documents\sampleData.xls'"
In the Debugger the exception is read as
When I look at details the exception as "C:\Users\username\Documents\sampleData.xls"
So I thought the error was that it wasn't taking the path as a literal, but this article C# verbatim string literal not working. Very Strange backslash always double
Shows very clearly that that is not my issue.

I am guessing you may be mistaken by what is returned from the following line of code…
DataTable spreadSheetData = myConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
The DataTable returned from this line will have nine (9) columns (TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, TABLE_TYPE, TABLE_GUID, DESCRIPTION, TABLE_PROPID, DATE_CREATED and DATE_MODIFIED). This ONE (1) DataTable returned simply “Describes” the worksheet(s) and named range(s) in the entire selected Excel workbook. Each row in this DataTable represent either a worksheet OR a named range. To distinguish worksheets from named ranges, the “TABLE_NAME” column in this DataTable has the name of the worksheet or range AND ends each “Worksheet” Name with a dollar sign ($). If the “TABLE_NAME” value in a row does NOT end in dollar sign, then it is a range and not a worksheet.
Therefore, when the line
OleDbDataAdapter theDataAdapter = new OleDbDataAdapter(onlineConnection);
Blows up and says it cannot file the “filename” error… is somewhat expected because this line is looking for a “worksheet” name, not a filename. On the line creating the select command…
OleDbCommand onlineConnection = new OleDbCommand("SELECT * FROM [" + frmDialog.FileName + "]", myConnection);
This is incorrect; you have already selected the filename and open the file with
String constr = String.Format(#"Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=""Excel 12.0 Xml;HDR=YES""", frmDialog.FileName);
OleDbConnection myConnection = new OleDbConnection(constr);
myConnection.Open();
The correct OleDbCommand line should be…
OleDbCommand onlineConnection = new OleDbCommand("SELECT * FROM [" + sheetName + "]", myConnection);
The problem here is that the current code is not getting the worksheet names. Therefore, we cannot “select” the worksheet from the workbook then fill the adapter with the worksheet.
The other issue is setting the DataGridView’s DataSource to spreadSheetData… when you get the worksheet(s) from an Excel “Workbook”, you must assume there will be more than one sheet. Therefore a DataSet will work as a container to hold all the worksheets in the workbook. Each DataTable in the DataSet would be a single worksheet and it can be surmised that the DataGridView can only display ONE (1) of these tables at a time. Given this, below are the changes described along with an added button to display the “Next” worksheet in the DataGridView since there may be more than one worksheet in the workbook. Hope this makes sense.
int sheetIndex = 0;
DataSet ds = new DataSet();
public Form1() {
InitializeComponent();
}
private void btnImport_Click(object sender, EventArgs e) {
var frmDialog = new System.Windows.Forms.OpenFileDialog();
if (frmDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK) {
String constr = String.Format(#"Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=""Excel 12.0 Xml;HDR=YES""", frmDialog.FileName);
OleDbConnection myConnection = new OleDbConnection(constr);
myConnection.Open();
DataTable spreadSheetData = myConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
string sheetName = "";
DataTable dt;
OleDbCommand onlineConnection;
OleDbDataAdapter theDataAdapter;
// fill the "DataSet" each table in the set is a worksheet in the Excel file
foreach (DataRow dr in spreadSheetData.Rows) {
sheetName = dr["TABLE_NAME"].ToString();
sheetName = sheetName.Replace("'", "");
if (sheetName.EndsWith("$")) {
onlineConnection = new OleDbCommand("SELECT * FROM [" + sheetName + "]", myConnection);
theDataAdapter = new OleDbDataAdapter(onlineConnection);
dt = new DataTable();
dt.TableName = sheetName;
theDataAdapter.Fill(dt);
ds.Tables.Add(dt);
}
}
myConnection.Close();
scheduleGridView.DataSource = ds.Tables[0];
setLabel();
}
}
private void setLabel() {
label1.Text = "Showing worksheet " + sheetIndex + " Named: " + ds.Tables[sheetIndex].TableName + " out of a total of " + ds.Tables.Count + " worksheets";
}
private void btnNextSheet_Click(object sender, EventArgs e) {
if (sheetIndex == ds.Tables.Count - 1)
sheetIndex = 0;
else
sheetIndex++;
scheduleGridView.DataSource = ds.Tables[sheetIndex];
setLabel();
}

I solved it. Well there was a workaround. I used the Excel Data Reader found in this thread: How to Convert DataSet to DataTable
Which led me to https://github.com/ExcelDataReader/ExcelDataReader
^ The readme was fantastic, just went to solution explorer, right click on references, manage NuGet Packages, select browse in the new box, enter ExcelDataReader, then in the .cs file be sure to include, "using Excel;" at the top, the code mentioned in the first link was essentially enough, but here's my exact code for those wondering.
var frmDialog = new System.Windows.Forms.OpenFileDialog();
if (frmDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
/*string strFileName = frmDialog.FileName;
//System.IO.FileInfo spreadSheetFile = new System.IO.FileInfo(strFileName);
System.IO.StreamReader reader = new System.IO.StreamReader(strFileName);
*/
string strFileName = frmDialog.FileName;
FileStream stream = File.Open(strFileName, FileMode.Open, FileAccess.Read);
//1. Reading from a binary Excel file ('97-2003 format; *.xls)
IExcelDataReader excelReader = ExcelReaderFactory.CreateBinaryReader(stream);
//...
//2. Reading from a OpenXml Excel file (2007 format; *.xlsx)
//IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);
//...
//3. DataSet - The result of each spreadsheet will be created in the result.Tables
//DataSet result = excelReader.AsDataSet();
//...
//4. DataSet - Create column names from first row
excelReader.IsFirstRowAsColumnNames = true;
DataSet result = excelReader.AsDataSet();
DataTable data = result.Tables[0];
//5. Data Reader methods
while (excelReader.Read())
{
//excelReader.GetInt32(0);
}
scheduleGridView.DataSource = data;
excelReader.Close();

The Microsoft Office Access database engine could not find an object

I'm trying to copy data from excel to sql server but facing the following error.
The Microsoft Office Access database engine could not find the object 'sheet1$'. Make sure the object exists and that you spell its name and the path name correctly.
My code is:
protected void importdatafromexcel(string filepath)
{
string sqltable = "PFDummyExcel";
string exceldataquery = "select EmployeeId,EmployeeName,Amount from [Sheet1$]";
string excelconnectionstring = #"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath + ";Extended Properties=Excel 12.0;Persist Security Info=False";
string sqlconnectionstring = System.Configuration.ConfigurationManager.ConnectionStrings["HRGold"].ConnectionString;
SqlConnection con = new SqlConnection(sqlconnectionstring);
OleDbConnection oledb = new OleDbConnection(excelconnectionstring);
OleDbCommand oledbcmd = new OleDbCommand(exceldataquery, oledb);
oledb.Open();
OleDbDataReader dr = oledbcmd.ExecuteReader();
SqlBulkCopy bulkcopy = new SqlBulkCopy(sqlconnectionstring);
bulkcopy.DestinationTableName = sqltable;
while (dr.Read())
{
bulkcopy.WriteToServer(dr);
}
oledb.Close();
}
Please tell me how i solve this..

This error is raised because of you are trying to access sheet (which name is sheet1) in excel file. By default first sheet name is "sheet1" but user have either rename this name or delete this sheet.
To resolved this issue first of all you have to get all sheet name from excel file, then you have to pass this sheet name in your above code to import data.
string filePath = "your file path";
string excelconnectionstring = #"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath + ";Extended Properties=Excel 12.0;Persist Security Info=False";
OleDbConnection Connection = new OleDbConnection(excelconnectionstring);
DataTable activityDataTable = Connection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
if(activityDataTable != null)
{
//validate worksheet name.
var itemsOfWorksheet = new List<SelectListItem>();
string worksheetName;
for (int cnt = 0; cnt < activityDataTable.Rows.Count; cnt++)
{
worksheetName = activityDataTable.Rows[cnt]["TABLE_NAME"].ToString();
if (worksheetName.Contains('\''))
{
worksheetName = worksheetName.Replace('\'', ' ').Trim();
}
if (worksheetName.Trim().EndsWith("$"))
itemsOfWorksheet.Add(new SelectListItem { Text = worksheetName.TrimEnd('$'), Value = worksheetName });
}
}
// itemsOfWorksheet : all worksheet name is added in this
so you can use itemsOfWorksheet[0] as sheet name in-place of "sheet1"

I had similar issue, I sorted it out by
Saving the excel file from fileuploader to a temporary folder inside website folder.
Using path to that file in my connection string
Rest all was same and now the error: The Microsoft Office Access database engine could not find the object 'sheet1$' was gone.

OleDB, Misses the first character of data

I have a CSV Reading code for ASP.NET application I maintain. This ASP.NET website is running fine from 3 yrs now, and CSV reading code that use Ole.JetDB.4.0 is doing its work fine, except that once in a while some CSV with more than 4K-5K records create a problem. Usually the problem is that a record at random position [random row] miss the first character of it.
CSV File is just bunch of name and addresses per row, and they are in ASNI Format. CSV is comma seperate, no data have "comma" in data and now enclosing of field in Single or Double quote. Also, it doesn't happen often, We use the same code for say 70K record upload they works fine, but some time say in 3 yrs about 3-4 files have this problem only, we upload about one file daily.
For those who need what I did
using (System.Data.OleDb.OleDbConnection conn = new System.Data.OleDb.OleDbConnection
("Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties='text;HDR=Yes;FMT=Delimited';Data Source=" + HttpContext.Current.Server.MapPath("/System/SaleList/"))
{
string sql_select = "select * from [" + this.FileName + "]";
System.Data.OleDb.OleDbDataAdapter da = new System.Data.OleDb.OleDbDataAdapter();
da.SelectCommand = new System.Data.OleDb.OleDbCommand(sql_select, conn);
DataSet ds = new DataSet();
// Read the First line of File to know the header
string[] lines = System.IO.File.ReadAllLines(HttpContext.Current.Server.MapPath("/System/SaleList/") + FileName);
string header = "";
if (lines.Length > 0)
header = lines[0];
string[] headers = header.Split(',');
CreateSchema(headers, FileName);
da.Fill(ds, "ListData");
DataTable dt = ds.Tables["ListData"];
}
And this code is working fine except the mention thing. I cut some unrelated part so, might not work by copy paste.
EDIT: More information
I try to use ODBC with Microsoft Text Driver, then I use ACE Driver with OleDB. the result is same with all three drive.
If I swap the problem record, with the preceding Row those rows are read quite well, until the next problem row [if more than one row is having problem in original file], if those are only problem row it works fine.
So from above it looks like that something is there that distract character counter, but how I can ensure it working smooth is still a quiz.
EDIT 2: I have submitted it as bug to Microsoft here : https://connect.microsoft.com/VisualStudio/feedback/details/811869/oledb-ace-driver-12-jet-4-0-or-odbc-text-driver-all-fail-to-read-data-properly-from-csv-text-file

I would suggest you examine a problem file with a hex editor - inspect the line that causes the problem and the line immediately preceding it.
In particular look at the line terminators (CR/LF? CR only? LF only?) and look for any non-printable characters.

Try using ACE Driver instead of JET (it's available on x86 and x64 servers, JET is only x86!)
using (System.Data.OleDb.OleDbConnection conn
= new System.Data.OleDb.OleDbConnection
("Provider=Microsoft.ACE.OLEDB.12.0;Extended Properties="Excel 12.0 Xml;HDR=YES";
Data Source=" + HttpContext.Current.Server.MapPath("/System/SaleList/"))
{

I got the same OleDB, Missing characters of data problem, see here:
The characters go missing because the Microsoft.Jet.OLEDB.4.0 driver
tries to guess the column datatype. In my case its was treating the
data as hexadecimal not alphanumeric.
Problematic oledbProviderString:
oledbProviderString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\"
{0}\";Extended Properties=\"Text;HDR=No;FMT=Delimited\"";
To fix the problem I added TypeGuessRows=0
oledbProviderString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\"
{0}\";Extended Properties=\"Text;HDR=No;FMT=Delimited;TypeGuessRows=0\"";
Repro:
Create a Book1.csv file with this content:
KU88,G6,CC
KU88,F7,CC
Step through this code as pictured above.
private void button1_Click(object sender, EventArgs e)
{
string folder = #"G:\Developers\Folder";
ReproProblem(folder);
}
static string oledbProviderString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\"{0}\";Extended Properties=\"Text;HDR=No;FMT=Delimited\"";
private void ReproProblem(string folderPath)
{
using (OleDbConnection oledbConnection = new OleDbConnection(string.Format(oledbProviderString, folderPath)))
{
string sqlStatement = "Select * from [Book1.csv]";
//open the connection
oledbConnection.Open();
//Create an OleDbDataAdapter for our connection
OleDbDataAdapter adapter = new OleDbDataAdapter(sqlStatement, oledbConnection);
//Create a DataTable and fill it with data
DataTable table = new DataTable();
adapter.Fill(table);
//close the connection
oledbConnection.Close();
}
}

why dont u just use this:
using (System.Data.OleDb.OleDbConnection conn = new System.Data.OleDb.OleDbConnection
("Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties='text;HDR=Yes;FMT=Delimited';Data Source=" + HttpContext.Current.Server.MapPath("/System/SaleList/"))
{
string sql_select = "select * from [" + this.FileName + "]";
System.Data.OleDb.OleDbDataAdapter da = new System.Data.OleDb.OleDbDataAdapter();
da.SelectCommand = new System.Data.OleDb.OleDbCommand(sql_select, conn);
DataSet ds = new DataSet();
// Read the First line of File to know the header
string[] lines = System.IO.File.ReadAllLines(HttpContext.Current.Server.MapPath("/System/SaleList/") + FileName);
DataTable mdt=new DataTable("ListData");
for (int i = 1; i < lines.Length; i++)
{
string[] sep=lines[i].Split(',');
foreach (var item in sep)
{
mdt.Rows.Add(sep);
}
}
string header = "";
if (lines.Length > 0)
header = lines[0];
string[] headers = header.Split(',');
ds.Tables.Add(mdt);
CreateSchema(headers, FileName);
da.Fill(ds, "ListData");
DataTable dt = mdt;}
i didnt debugged it. i hope there is no problem but if there is im here for you.
thank you very much

How can I read the rows of an Excel csv or xls file into an ASP.NET app from a remote location using C#?

Here's my situation. I'm designing a program that takes Excel files (which may be in csv, xls, or xlsx format) from a remote network drive, processes the data, then outputs and stores the results of that process. The program provides a listbox of filenames that are obtained from the remote network drive folder using the method detailed in the accepted answer here. Once the user selects a filename from the listbox, I want the program to find the file and obtain the information from it to do the data processing. I have tried using this method to read the data from the Excel file while in a threaded security context, but that method just fails without giving any kind of error. It seems to not terminate. Am I going about this the wrong way?
Edit - (Final Notes: I have taken out the OleDbDataAdapter and replaced it with EPPlus handling.)
I was able to scrub sensitive data from the code, so here it is:
protected void GetFile(object principalObj)
{
if (principalObj == null)
{
throw new ArgumentNullException("principalObj");
}
IPrincipal principal = (IPrincipal)principalObj;
Thread.CurrentPrincipal = principal;
WindowsIdentity identity = principal.Identity as WindowsIdentity;
WindowsImpersonationContext impersonationContext = null;
if (identity != null)
{
impersonationContext = identity.Impersonate();
}
try
{
string fileName = string.Format("{0}\\" + Files.SelectedValue, #"RemoteDirectoryHere");
string connectionString = string.Format("Provider=Microsoft.ACE.OLEDB.14.0; data source={0}; Extended Properties=Excel 14.0;", fileName);
OleDbDataAdapter adapter = new OleDbDataAdapter("SELECT * FROM Sheet1", connectionString);
DataSet ds = new DataSet();
adapter.Fill(ds, "Sheet1");
dataTable = ds.Tables["Sheet1"];
}
finally
{
if (impersonationContext != null)
{
impersonationContext.Undo();
}
}
}
Additional Edit
Now xlsx files have been added to the mix.
Third Party
Third party solutions are not acceptable in this case (unless they allow unrestricted commercial use).
Attempts - (Final Notes: Ultimately I had to abandon OleDb connections.)
I have tried all of the different connection strings offered, and I have tried them with just one file type at a time. None of the connection strings worked with any of the file types.
Permissions
The User does have access to the file and its directory.

Your connection string might be the issue here. As far as I know, there isn't 1 that can read all xls, csv, and xlsx. I think you're using the XLSX connection string.
When I read xls, i use the following connection string:
#"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + sFilePath + ";Extended Properties='Excel 8.0;HDR=YES;IMEX=1;'"
Having said that, I recommend using a 3rd party file reader/parser to read XLS and CSV since, from my experience, OleDbDataAdapter is wonky depending on the types of data that's being read (and how mixed they are within each column).
For XLS, try NPOI https://code.google.com/p/npoi/
For CSV, try http://www.codeproject.com/Articles/9258/A-Fast-CSV-Reader
For XLSX, try EPPlus http://epplus.codeplex.com/
I've had great success with the above libraries.

Is it really important that you use an OleDb interface for this? I've always done it with Microsoft.Office.Excel.Interop, to wit:
using System;
using Microsoft.Office.Interop.Excel;
namespace StackOverflowExample
{
class Program
{
static void Main(string[] args)
{
var app = new Application();
var wkbk = app.Workbooks.Open(#"c:\data\foo.xls") as Workbook;
var wksht = wkbk.Sheets[1] as Worksheet; // not zero-based!
for (int row = 1; row <= 100; row++) // not zero-based!
{
Console.WriteLine("This is row #" + row.ToString());
for (int col = 1; col <= 100; col++)
{
Console.WriteLine("This is col #" + col.ToString());
var cell = wksht.Cells[row][col] as Range;
if (cell != null)
{
object val = cell.Value;
if (val != null)
{
Console.WriteLine("The value of the cell is " + val.ToString());
}
}
}
}
}
}
}

As you will be dealing with xlsx extension, you should rather opt for the new connection string.
public static string getConnectionString(string fileName, bool HDRValue, bool WriteExcel)
{
string hdrValue = HDRValue ? "YES" : "NO";
string writeExcel = WriteExcel ? string.Empty : "IMEX=1";
return "Provider=Microsoft.ACE.OLEDB.12.0;" + "Data Source=" + fileName + ";" + "Extended Properties=\"Excel 12.0 xml;HDR=" + hdrValue + ";" + writeExcel + "\"";
}
Above is the code for getting the connection string. First argument expects the actual path for file location. Second argument will decide whether to consider first row values as column headers or not. Third argument helps decide whether you want to open the connection to create and write the data or simply read the data. To read the data set it to "FALSE"
public static ReadData(string filePath, string sheetName, List<string> fieldsToRead, int startPoint, int endPoint)
{
DataTable dt = new DataTable();
try
{
string ConnectionString = ProcessFile.getConnectionString(filePath, false, false);
using (OleDbConnection cn = new OleDbConnection(ConnectionString))
{
cn.Open();
DataTable dbSchema = cn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
if (dbSchema == null || dbSchema.Rows.Count < 1)
{
throw new Exception("Error: Could not determine the name of the first worksheet.");
}
StringBuilder sb = new StringBuilder();
sb.Append("SELECT *");
sb.Append(" FROM [" + sheetName + fieldsToRead[0].ToUpper() + startPoint + ":" + fieldsToRead[1].ToUpper() + endPoint + "] ");
OleDbDataAdapter da = new OleDbDataAdapter(sb.ToString(), cn);
dt = new DataTable(sheetName);
da.Fill(dt);
if (dt.Rows.Count > 0)
{
foreach (DataRow row in dt.Rows)
{
string i = row[0].ToString();
}
}
cn.Dispose();
return fileDatas;
}
}
catch (Exception)
{
}
}

This is for reading 2007 Excel into dataset
DataSet ds = new DataSet();
try
{
string myConnStr = "";
myConnStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=MyDataSource;Extended Properties=\"Excel 12.0;HDR=YES\"";
OleDbConnection myConn = new OleDbConnection(myConnStr);
OleDbCommand cmd = new OleDbCommand("select * from [Sheet1$] ", myConn);
OleDbDataAdapter adapter = new OleDbDataAdapter();
adapter.SelectCommand = cmd;
myConn.Open();
adapter.Fill(ds);
myConn.Close();
}
catch
{ }
return ds;

C# Read and convert dbf file to xml

I want to read a simple foxpro dbf file and convert it into xml file and save it into my pc.
Is it possible to read and convert simple file.DBF with out using any db connection?

Yes, It is possible. Create connection on DBF table as appropriate based on this link http://www.connectionstrings.com/dbf-foxpro. Later you get the entire data onto a Dataset. You can save data set wherever you want to in XML format.

Here is the code...
private void btnBrowse_Click(object sender, EventArgs e)
{
try
{
var path = "F:\\Projects\\dbf"; // Path of the folder containing dbf file.
var fileName = "Invoices1.dbf";
var constr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + ";Extended Properties=DBASE III";
var sql = "select * from " + fileName;
var ds = new DataSet();
using (var con = new OleDbConnection(constr))
{
con.Open();
using (var cmd = new OleDbCommand(sql, con))
{
using (var da = new OleDbDataAdapter(cmd))
{
da.Fill(ds);
dataGridView1.DataSource = ds.Tables.Count > 0
? ds.Tables[0].Copy() : new DataTable();
}
}
}
}
catch
{
throw;
}
}