Чтение БД из Excel

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http://www.codeproject.com/Tips/705470/Read-and-Write-Excel-Documents-Using-OLEDB&ie=utf-8&oe=utf-8&gws_rd=cr&ei=RiwCWLKhKMe2swHr0IHoDA
using System.Data;
using System.Data.OleDb;
using System.IO;
namespace DB_Excel
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private DataTable ReadExcelFile(string sheetName, string path)
{
using (OleDbConnection conn = new OleDbConnection())
{
DataTable dt = new DataTable();
string Import_FileName = path;
string fileExtension = Path.GetExtension(Import_FileName);
if (fileExtension == ".xls")
conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Import_FileName + ";" + "Extended Properties='Excel 8.0;HDR=YES;'";
if (fileExtension == ".xlsx")
conn.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + Import_FileName + ";" + "Extended Properties='Excel 12.0 Xml;HDR=YES;'";
using (OleDbCommand comm = new OleDbCommand())
{
comm.CommandText = "Select * from [" + sheetName + "$]";
comm.Connection = conn;
using (OleDbDataAdapter da = new OleDbDataAdapter())
{
da.SelectCommand = comm;
da.Fill(dt);
return dt;
}
}
}
}
private void Form1_Load(object sender, EventArgs e)
{
this.dataGridView1.DataSource = ReadExcelFile("Лист1", "1.xls");
}
}
}
http://www.codeproject.com/Tips/705470/Read-and-Write-Excel-Documents-Using-OLEDB
private void button1_Click(object sender, EventArgs e)
{
try
{
System.Data.OleDb.OleDbConnection MyConnection ;
System.Data.DataSet DtSet ;
System.Data.OleDb.OleDbDataAdapter MyCommand ;
MyConnection = new System.Data.OleDb.OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0;Data Source='c:\\csharp.net-informations.xls';Extended Properties=Excel 8.0;");
MyCommand = new System.Data.OleDb.OleDbDataAdapter("select * from [Sheet1$]", MyConnection);
MyCommand.TableMappings.Add("Table", "TestTable");
DtSet = new System.Data.DataSet();
MyCommand.Fill(DtSet);
dataGridView1.DataSource = DtSet.Tables[0];
MyConnection.Close();
}
catch (Exception ex)
{
MessageBox.Show (ex.ToString());
}
}
private void button1_Click(object sender, EventArgs e)
{
try
{
System.Data.OleDb.OleDbConnection MyConnection ;
System.Data.OleDb.OleDbCommand myCommand = new System.Data.OleDb.OleDbCommand();
string sql = null;
MyConnection = new System.Data.OleDb.OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0;Data Source='c:\\csharp.net-informations.xls';Extended Properties=Excel 8.0;");
MyConnection.Open();
myCommand.Connection = MyConnection;
sql = "Insert into [Sheet1$] (id,name) values('5','e')";
myCommand.CommandText = sql;
myCommand.ExecuteNonQuery();
MyConnection.Close();
}
catch (Exception ex)
{
MessageBox.Show (ex.ToString());
}
}
private void button1_Click(object sender, EventArgs e)
{
try
{
System.Data.OleDb.OleDbConnection MyConnection ;
System.Data.OleDb.OleDbCommand myCommand = new System.Data.OleDb.OleDbCommand();
string sql = null;
MyConnection = new System.Data.OleDb.OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0;Data Source='c:\\csharp.net-informations.xls';Extended Properties=Excel 8.0;");
MyConnection.Open();
myCommand.Connection = MyConnection;
sql = "Update [Sheet1$] set name = 'New Name' where id=1";
myCommand.CommandText = sql;
myCommand.ExecuteNonQuery();
MyConnection.Close();
}
catch (Exception ex)
{
MessageBox.Show (ex.ToString());
}
}
private void button1_Click(object sender, EventArgs e)
{
string connetionString = null;
OleDbConnection connection ;
OleDbDataAdapter oledbAdapter = new OleDbDataAdapter();
string sql = null;
connetionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Your mdb filename;";
connection = new OleDbConnection(connetionString);
sql = "delete from tblusers1 where UserID = 'user1'";
try
{
connection.Open();
oledbAdapter.DeleteCommand = connection.CreateCommand();
oledbAdapter.DeleteCommand.CommandText = sql;
oledbAdapter.DeleteCommand.ExecuteNonQuery();
MessageBox.Show ("Row(s) Deleted !! ");
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
private void button1_Click(object sender, EventArgs e)
{
const string xlsPath = @"C:\dotnetwin\xlApp\WindowsFormsApplication1\teknoser.xls";
Excel.Application excelApp = new Excel.ApplicationClass();
try
{
Excel.Workbook excelWorkbook = excelApp.Workbooks.Open(
xlsPath,
0,
false,
5,
"",
"",
false,
Excel.XlPlatform.xlWindows,
"",
true,
false,
0,
true,
false,
false
);
Excel.Worksheet sheet = (Excel.Worksheet)excelWorkbook.Worksheets.get_Item("TÜMÜ");
Excel.Range ran = (Excel.Range)sheet.Rows[5, Type.Missing];
ran.Select();
ran.Delete(Excel.XlDirection.xlUp);
}
finally
{
excelApp.Visible = true;
}
}