internal OleDbTransaction (OleDbConnection connection, int depth, IsolationLevel isolevel)
{
this.connection = connection;
gdaTransaction = libgda.gda_transaction_new (depth.ToString ());
switch (isolevel) {
case IsolationLevel.ReadCommitted :
libgda.gda_transaction_set_isolation_level (gdaTransaction,
GdaTransactionIsolation.ReadCommitted);
break;
case IsolationLevel.ReadUncommitted :
libgda.gda_transaction_set_isolation_level (gdaTransaction,
GdaTransactionIsolation.ReadUncommitted);
break;
case IsolationLevel.RepeatableRead :
libgda.gda_transaction_set_isolation_level (gdaTransaction,
GdaTransactionIsolation.RepeatableRead);
break;
case IsolationLevel.Serializable :
libgda.gda_transaction_set_isolation_level (gdaTransaction,
GdaTransactionIsolation.Serializable);
break;
}
libgda.gda_connection_begin_transaction (connection.GdaConnection, gdaTransaction);
}
public static int SaveRecord(string sql)
{
const int rv = 0;
try
{
string connectionString = ConfigurationManager.ConnectionStrings["LA3Access"].ConnectionString;
using (var conn = new OleDbConnection(connectionString))
{
conn.Open();
var cmGetID = new OleDbCommand("SELECT @@IDENTITY", conn);
var comm = new OleDbCommand(sql, conn) { CommandType = CommandType.Text };
comm.ExecuteNonQuery();
var ds = new DataSet();
var adapt = new OleDbDataAdapter(cmGetID);
adapt.Fill(ds);
adapt.Dispose();
cmGetID.Dispose();
return int.Parse(ds.Tables[0].Rows[0][0].ToString());
}
}
catch (Exception)
{
}
return rv;
}
public void BeginTransaction_Connection_Closed ()
{
OleDbConnection cn = new OleDbConnection ();
try {
cn.BeginTransaction ();
Assert.Fail ("#A1");
} catch (InvalidOperationException ex) {
// Invalid operation. The connection is closed
Assert.AreEqual (typeof (InvalidOperationException), ex.GetType (), "#A2");
Assert.IsNull (ex.InnerException, "#A3");
Assert.IsNotNull (ex.Message, "#A4");
}
try {
cn.BeginTransaction ((IsolationLevel) 666);
Assert.Fail ("#B1");
} catch (InvalidOperationException ex) {
// Invalid operation. The connection is closed
Assert.AreEqual (typeof (InvalidOperationException), ex.GetType (), "#B2");
Assert.IsNull (ex.InnerException, "#B3");
Assert.IsNotNull (ex.Message, "#B4");
}
try {
cn.BeginTransaction (IsolationLevel.Serializable);
Assert.Fail ("#C1");
} catch (InvalidOperationException ex) {
// Invalid operation. The connection is closed
Assert.AreEqual (typeof (InvalidOperationException), ex.GetType (), "#C2");
Assert.IsNull (ex.InnerException, "#C3");
Assert.IsNotNull (ex.Message, "#C4");
}
}
public override List<DomainAlias> GetDomainAliases(string domainName)
{
var _tmp = new List<DomainAlias>();
using (OleDbConnection _conn = new OleDbConnection(Settings.Default.connectionString))
{
_conn.Open();
using (OleDbCommand _cmd = new OleDbCommand(@"SELECT domain_aliases.name AS alias, domains.name AS [domain], domain_aliases.status
FROM (domain_aliases INNER JOIN
domains ON domain_aliases.dom_id = domains.id)
WHERE (domain_aliases.status = 0) AND (domains.name = ?)", _conn))
{
_cmd.CommandType = CommandType.Text;
_cmd.Parameters.AddWithValue("NAME", domainName);
using (OleDbDataReader _read = _cmd.ExecuteReader())
{
while (_read.Read())
{
var _d = new DomainAlias();
_d.Domain = _read["domain"].ToString();
_d.Alias = _read["alias"].ToString();
_tmp.Add(_d);
}
}
}
_conn.Close();
}
return _tmp;
}
public void updateProductPrice(ProductInBag Product)
{
OleDbConnection myConn = new OleDbConnection(Connstring.getConnectionString());
OleDbCommand myCmd;
OleDbDataAdapter myDataAdapter = new OleDbDataAdapter();
try
{
myCmd = new OleDbCommand("UpdateUnitPrice", myConn);
myCmd.CommandType = CommandType.StoredProcedure;
OleDbParameter objParam;
objParam = myCmd.Parameters.Add("@UnitPrice", OleDbType.Decimal);
objParam.Direction = ParameterDirection.Input;
objParam.Value = Product.Price;
objParam = myCmd.Parameters.Add("@ProductID", OleDbType.Integer);
objParam.Direction = ParameterDirection.Input;
objParam.Value = Product.ProdID;
myConn.Open();
myCmd.ExecuteNonQuery();
}
catch (Exception ex)
{
throw ex;
}
finally
{
myConn.Close();
}
}
/**
* Constructor that gets the connection to the database and Car information
*
* @param V VIN of the Car
* @param T Type of the Car
* @param cn Connection to the database
*/
public MakeTires(string S, string T, string TS, OleDbConnection cn)
{
this.SerialNumber = S;
this.Type = T;
this.TireSize = TS;
this.cn = cn;
}
protected void Page_Load(object sender, EventArgs e)
{
System.Data.OleDb.OleDbConnection Conn = new System.Data.OleDb.OleDbConnection();
Conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("app_data/productsdb.mdb");
Conn.Open();
//Response.Write(Conn.State);
System.Data.OleDb.OleDbCommand Comm = new System.Data.OleDb.OleDbCommand();
System.Data.OleDb.OleDbDataReader dr;
Comm.Connection = Conn;
Comm.CommandText = "select productid, productname, productiondescription, price, qoh, imagelocation from products";
if (Request.Params["categoryid"] != null && Request.Params["categoryid"].Length >0)
{
Comm.CommandText += " where categoryid = ?" ;
Comm.Parameters.AddWithValue("anything", Request.Params["categoryid"].ToString());
}
dr = Comm.ExecuteReader();
bool firstone = true;
Response.Write("{\"product\":[");
while (dr.Read())
{
if (!firstone)
{
Response.Write(",");
}
Response.Write(dr[0].ToString());
firstone = false;
}
Response.Write("]}");
}
private void btn_Browser_Click(object sender, EventArgs e)
{
OpenFileDialog P_open = new OpenFileDialog();//创建打开文件对话框对象
P_open.Filter = "文本文件|*.txt|所有文件|*.*";//设置筛选字符串
if (P_open.ShowDialog() == DialogResult.OK)
{
txt_Path.Text = P_open.FileName;//显示文件路径
string conn = string.Format(//创建连接字符串
@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties=text",
P_open.FileName.Substring(0,P_open.FileName.LastIndexOf(@"\")));
OleDbConnection P_OleDbConnection = new OleDbConnection(conn);//创建连接对象
try
{
P_OleDbConnection.Open();//打开连接
OleDbCommand cmd = new OleDbCommand(//创建命令对象
string.Format("select * from {0}",
P_open.FileName.Substring(P_open.FileName.LastIndexOf(@"\"),
P_open.FileName.Length - P_open.FileName.LastIndexOf(@"\"))),
P_OleDbConnection);
OleDbDataReader oda = cmd.ExecuteReader();//得到数据读取器对象
while (oda.Read())
{
txt_Message.Text += oda[0].ToString();//得到文本文件中的字符串
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);//弹出消息对话框
}
finally
{
P_OleDbConnection.Close();//关闭连接
}
}
}
/// <summary>
/// 执行查询语句，返回DataSet
/// </summary>
/// <param name="SQLString">查询语句</param>
/// <returns>DataSet</returns>
public override DataSet ExecuteDataSet(string SQLString, params IDataParameter[] cmdParms)
{
using (OleDbConnection connection = new OleDbConnection(connectionString))
{
OleDbCommand cmd = new OleDbCommand();
PrepareCommand(cmd, connection, null, SQLString, cmdParms);
using (OleDbDataAdapter da = new OleDbDataAdapter(cmd))
{
DataSet ds = new DataSet();
try
{
da.Fill(ds, "ds");
cmd.Parameters.Clear();
}
catch (OleDbException e)
{
//LogManage.OutputErrLog(e, new Object[] { SQLString, cmdParms });
throw;
}
finally
{
cmd.Dispose();
connection.Close();
}
return ds;
}
}
}
protected void Button1_Click(object sender, EventArgs e)
{
try
{
OleDbConnectionStringBuilder sb = new OleDbConnectionStringBuilder();
sb.Provider = "Microsoft.ACE.OLEDB.12.0";
sb.DataSource = Server.MapPath("/vedb01/uploads/db1.accdb");
OleDbConnection conn = new OleDbConnection(sb.ConnectionString);
conn.Open();
string updateQuery = "UPDATE Bag SET [email protected], [email protected], [email protected], [email protected], [email protected], [email protected] WHERE BagID= @ID";
OleDbCommand com = new OleDbCommand(updateQuery, conn);
com.Parameters.AddWithValue("@ID", txtBagId.Text);
com.Parameters.AddWithValue("@name", txtBagName.Text);
com.Parameters.AddWithValue("@supplier", txtSupplier.Text);
com.Parameters.AddWithValue("@color", txtColor.Text);
com.Parameters.AddWithValue("@category", txtCategory.Text);
com.Parameters.AddWithValue("@price", txtPrice.Text);
com.Parameters.AddWithValue("@description", txtDescription.Text);
com.ExecuteNonQuery();
lblMessage.Text = "The bag No " + txtBagId.Text +" was updated successfully " + txtBagName.Text + " !";
conn.Close();
}
catch (Exception ex)
{
Response.Write("Error: " + ex.ToString());
lblMessage.Text = "Error !";
}
}
protected void btnAddBag_Click(object sender, EventArgs e)
{
try
{
OleDbConnectionStringBuilder sb = new OleDbConnectionStringBuilder();
sb.Provider = "Microsoft.ACE.OLEDB.12.0";
sb.DataSource = Server.MapPath("/vedb01/uploads/db1.accdb");
OleDbConnection conn = new OleDbConnection(sb.ConnectionString);
conn.Open();
string insertQuery = "insert into Bag ( [BagName], [Supplier], [Color], [Category], [Price], [Description]) values (@name ,@supplier ,@color ,@category ,@price ,@description)";
OleDbCommand com = new OleDbCommand(insertQuery, conn);
com.Parameters.AddWithValue("@name", txtBagName.Text);
com.Parameters.AddWithValue("@supplier", txtSupplier.Text);
com.Parameters.AddWithValue("@color", txtColor.Text);
com.Parameters.AddWithValue("@category", txtCategory.Text);
com.Parameters.AddWithValue("@price", txtPrice.Text);
com.Parameters.AddWithValue("@description", txtDescription.Text);
com.ExecuteNonQuery();
lblMessage.Text = "The bag was added successfully " + txtBagName.Text + " !";
conn.Close();
}
catch (Exception ex)
{
Response.Write("Error: " + ex.ToString());
lblMessage.Text = "Error" + txtBagName.Text + " !";
}
}
/// <summary>
/// 执行多条SQL语句，实现数据库事务。
/// </summary>
/// <param name="SQLStringList">多条SQL语句</param>
public static void ExecuteSqlTran(ArrayList SQLStringList)
{
using (OleDbConnection conn = new OleDbConnection(connectionString))
{
conn.Open();
OleDbCommand cmd = new OleDbCommand();
cmd.Connection = conn;
OleDbTransaction tx = conn.BeginTransaction();
cmd.Transaction = tx;
try
{
for (int n = 0; n < SQLStringList.Count; n++)
{
string strsql = SQLStringList[n].ToString();
if (strsql.Trim().Length > 1)
{
cmd.CommandText = strsql;
cmd.ExecuteNonQuery();
}
}
tx.Commit();
}
catch (System.Data.OleDb.OleDbException E)
{
tx.Rollback();
throw new Exception(E.Message);
}
}
}
protected void Page_Load(object sender, System.EventArgs e)
{
// resolve the address to the Access database
string fileNameString = this.MapPath(".");
fileNameString += "..\\..\\..\\..\\data\\chartdata.mdb";
// initialize a connection string
string myConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=" + fileNameString;
// define the database query
string mySelectQuery="SELECT GrossSales FROM SALES WHERE QuarterEnding < #01/01/2002#;";
// create a database connection object using the connection string
OleDbConnection myConnection = new OleDbConnection(myConnectionString);
// create a database command on the connection using query
OleDbCommand myCommand = new OleDbCommand(mySelectQuery, myConnection);
// open the connection
myCommand.Connection.Open();
// create a database reader
OleDbDataReader myReader = myCommand.ExecuteReader(CommandBehavior.CloseConnection);
// since the reader implements and IEnumerable, pass the reader directly into
// the DataBind method with the name of the Column selected in the query
Chart1.Series["Default"].Points.DataBindY(myReader, "GrossSales");
// close the reader and the connection
myReader.Close();
myConnection.Close();
}
public void ReadExcelSheet(string fileName, string sheetName, Action<DataTableReader> actionForEachRow)
{
var connectionString = string.Format(ExcelSettings.Default.ExcelConnectionString, fileName);
using (var excelConnection = new OleDbConnection(connectionString))
{
excelConnection.Open();
if (sheetName == null)
{
var excelSchema = excelConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
if (excelSchema != null)
{
sheetName = excelSchema.Rows[0]["TABLE_NAME"].ToString();
}
}
var excelDbCommand = new OleDbCommand(@"SELECT * FROM [" + sheetName + "]", excelConnection);
using (var oleDbDataAdapter = new OleDbDataAdapter(excelDbCommand))
{
var dataSet = new DataSet();
oleDbDataAdapter.Fill(dataSet);
using (var reader = dataSet.CreateDataReader())
{
while (reader.Read())
{
actionForEachRow(reader);
}
}
}
}
}
protected void Button1_Click(object sender, EventArgs e)
{
int lgflg = 0;
OleDbConnection conn = new OleDbConnection(ConfigurationSettings.AppSettings["classDB"]);
OleDbCommand cmd = new OleDbCommand("SELECT * FROM student WHERE studentpassword = '" + password.Text + "' AND email = '" + userName.Text + "'", conn);
conn.Open();
OleDbDataReader myReader = cmd.ExecuteReader();
while (myReader.Read())
{
lgflg = 1;
Session.Add("fname", myReader["Contact_name"]);
Session.Add("address", myReader["address"]);
Session.Add("city", myReader["city"]);
Session.Add("state", myReader["state"]);
Session.Add("zipcode", myReader["zipcode"]);
}
myReader.Close();
conn.Close();
if (lgflg == 1)
{
Response.Write(Session["fname"]);
}
else
{
error.Visible = true;
}
}
public string LoadContain()
{
if (Request.QueryString["CourseId"] == null)
{
return string.Empty;
}
string ThePath = string.Empty;
string RetData = string.Empty;
using (OleDbConnection Con = new OleDbConnection(constr))
{
OleDbCommand cmd = new OleDbCommand(String.Format("SELECT TOP 1 DataPath FROM CoursenotimeDataPath WHERE CourseId = {0}", Request.QueryString["CourseId"]), Con);
try
{
Con.Open();
ThePath = cmd.ExecuteScalar().ToString();
//if (ThePath != string.Empty)
// ThePath = MapPath(DB.CourseNoTimeFileDir + ThePath);
ThePath = DB.CourseNoTimeFileDir + ThePath;
TextReader TR = new StreamReader(ThePath);
RetData = TR.ReadToEnd();
TR.Close();
TR.Dispose();
}
catch (Exception ex)
{
RetData = ex.Message;
}
Con.Close();
}
return HttpUtility.HtmlDecode(RetData);
}
public DataSet GetDataSet(string filepath, string excelFileExtension)
{
try {
System.Data.OleDb.OleDbConnection oledbcon = null;
string strConn = string.Empty;
switch (excelFileExtension.Trim()) {
case "xls":
oledbcon = new System.Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties=\"Excel 8.0;HDR=No;IMEX=1;MaxScanRows=0;\"");
strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + filepath + ";" + "Extended Properties=Excel 8.0;";
break;
case "xlsx":
oledbcon = new System.Data.OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath
+ ";Extended Properties='Excel 12.0;HDR=No;IMEX=1'");
strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath
+ ";Extended Properties=Excel 12.0;";
break;
}
//excel
OleDbConnection conn = new OleDbConnection(strConn);
conn.Open();
DataTable dtSheetName = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "Table" });
string sheetName = dtSheetName.Rows[0]["TABLE_NAME"].ToString();
System.Data.OleDb.OleDbDataAdapter oledbAdaptor = new System.Data.OleDb.OleDbDataAdapter("SELECT * FROM [" + sheetName + "]", oledbcon);
//select
DataSet ds = new DataSet();
oledbAdaptor.Fill(ds);
oledbcon.Close();
return ds;
} catch (Exception ex) {
throw ex;
}
}
protected void btTaiLen_Click1(object sender, EventArgs e)
{
if (Request.Cookies["ADMIN"] == null) return;
if (FileUpload1.HasFile)
try
{
string path = Server.MapPath(@"EXCEL\") + "Question_" + DateTime.Now.ToString("yyMMdd_HHmmss") + ".xlsx";
FileUpload1.SaveAs(path);
string txt = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=Excel 12.0 Xml;", path);
OleDbConnection con = new OleDbConnection(txt);
con.Open();
txt = "Select * FROM [Sheet1$]";
OleDbDataAdapter da = new OleDbDataAdapter(txt, con);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
gvCauHoi.DataSource = ds;
gvCauHoi.DataBind();
string temp;
foreach (GridViewRow dr in gvCauHoi.Rows)
{
temp = Server.HtmlDecode(dr.Cells[0].Text);
if (temp.StartsWith("#"))
dr.CssClass = "Q1";
else if (temp.StartsWith("$")) // Không đảo phương án trả lời
dr.CssClass = "Q2";
else if (temp.StartsWith("*")) // Phương án trả lời đúng
dr.CssClass = "A1";
}
}
catch (Exception ex) { lbError.Text = ex.Message; }
}
private void fill_form(string p_id)
{
String strQuery = String.Empty;
OleDbConnection sqlConn = new OleDbConnection();
OleDbCommand sqlComm = new OleDbCommand();
OleDbDataReader sqlRead;// = new OleDbDataReader();
DateTime strReturn = DateTime.Now;
//
sqlConn.ConnectionString = PCPUB.m_oledb_connection.ToString();
sqlConn.Open();
//
strQuery = String.Empty;
strQuery += " SELECT";
strQuery += " [yarn_count_id],";
strQuery += " [yarn_count_name]";
strQuery += " FROM [tis_yarn_count]";
strQuery += " WHERE [yarn_count_id] = '" + p_id + "'";
//
sqlComm.Connection = sqlConn;
sqlComm.CommandText = strQuery.ToString();
sqlRead = sqlComm.ExecuteReader();
//
if (sqlRead.Read())
{
txt_yarn_count_id.Text = sqlRead["yarn_count_id"].ToString();
txt_yarn_count_name.Text = sqlRead["yarn_count_name"].ToString();
}
//
sqlRead.Close();
sqlConn.Close();
sqlRead.Dispose();
sqlComm.Dispose();
sqlConn.Dispose();
}
public DataTable sepetcevir(string uyeID, string map)
{
OleDbConnection cnn = new OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0; Data Source=" + map);
cnn.Open();
OleDbCommand cmd = new OleDbCommand("select sepet from uyeler where uyeid=" + uyeID, cnn);
OleDbDataReader rdr = cmd.ExecuteReader();
rdr.Read();
string[] urunler = rdr[0].ToString().Split(',');
DataTable dt = new DataTable();
dt.Columns.AddRange(new DataColumn[3] { new DataColumn("fid"), new DataColumn("aciklama"), new DataColumn("fiyat") });
if (rdr[0].ToString() != "")
{
foreach (string item in urunler)
{
cmd.Dispose();
string fid = item;
cmd = new OleDbCommand("select * from fotolar where fot_id=" + fid, cnn);
OleDbDataReader rdr2 = cmd.ExecuteReader();
rdr2.Read();
string ack = rdr2[5].ToString();
string fiyat = rdr2[6].ToString();
dt.Rows.Add(fid, ack, fiyat);
}
}
cnn.Close();
return dt;
}
public void update(string query)
{
OleDbConnection connection = new OleDbConnection();
string executable = System.Reflection.Assembly.GetExecutingAssembly().Location;
string path = (System.IO.Path.GetDirectoryName(executable));
AppDomain.CurrentDomain.SetData("DataDirectory", path);
connection.ConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|/LMS.accdb";
OleDbCommand command;
command = connection.CreateCommand();
try
{
command.CommandText = query;
command.CommandType = CommandType.Text;
connection.Open();
//SqlCommand comm = new SqlCommand(query, connection);
command.ExecuteNonQuery();
}
catch (Exception)
{
}
finally
{
if (connection != null)
connection.Close();
}
}
private void FormFirma_Load(object sender, EventArgs e)
{
PutBaze = System.IO.File.ReadAllText(Application.StartupPath + "\\Ponuda\\BazaPonuda.txt");
string PutKriterij =System.IO.File.ReadAllText(@"privPonuda.txt");
string connString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+PutBaze;
//----------SQL instrukcija-----------\\
string sql = "SELECT * FROM sve WHERE Firma LIKE '" + PutKriterij + "%'";
//klase za povezivanje na ACCESS bazu podataka//
OleDbConnection conn = new OleDbConnection(connString);
OleDbDataAdapter adapter = new OleDbDataAdapter(sql, conn);
//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\
ds = new DataSet(); //kreira noi objekt(kopiju) DataSet()-a
conn.Open(); //otvara spoj s bazom podataka
adapter.Fill(ds, "sve"); //puni se DataSet s podacima tabele t_razred
conn.Close(); //zatvara se baza podataka
//nakon zatvaanja BP imamo odgovarajuće podatke u ds objektu ( DataSet() )
dataGridView2.DataSource = ds; //upisivanje podataka id ds u dataGridView2
dataGridView2.DataMember = "sve";
ukupnaCijenaDataGridViewTextBoxColumn.DefaultCellStyle.FormatProvider = CultureInfo.GetCultureInfo("de-DE");
this.dataGridView2.Sort(firmaDataGridViewTextBoxColumn, ListSortDirection.Ascending);
System.IO.File.Delete(@"privPonuda.txt");
}
// Gets all the countries that start with the typed text, taking paging into account
protected DataTable GetCountries(string text, int startOffset, int numberOfItems)
{
OleDbConnection myConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("../App_Data/continent.mdb"));
myConn.Open();
string whereClause = " WHERE CountryName LIKE @CountryName";
string sortExpression = " ORDER BY CountryName";
string commandText = "SELECT TOP " + numberOfItems + " CountryID, CountryName FROM Country";
commandText += whereClause;
if (startOffset != 0)
{
commandText += " AND CountryID NOT IN (SELECT TOP " + startOffset + " CountryID FROM Country";
commandText += whereClause + sortExpression + ")";
}
commandText += sortExpression;
OleDbCommand myComm = new OleDbCommand(commandText, myConn);
myComm.Parameters.Add("@CountryName", OleDbType.VarChar).Value = text + '%';
OleDbDataAdapter da = new OleDbDataAdapter();
DataSet ds = new DataSet();
da.SelectCommand = myComm;
da.Fill(ds, "Country");
myConn.Close();
return ds.Tables[0];
}
private void addToDatabase(string sql)
{
OleDbConnection db = null;
try
{
db = new OleDbConnection();
db.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data source=" + mFileName;
db.Open();
OleDbCommand command = new OleDbCommand(sql, db);
command.ExecuteNonQuery();
}
catch (Exception ex)
{
showErrorMessage(ex.Message);
}
finally
{
if (db != null)
{
db.Close();
}
}
}
//Create an Excel file with 2 columns: name and score:
//Write a program that reads your MS Excel file through
//the OLE DB data provider and displays the name and score row by row.
static void Main()
{
OleDbConnection dbConn = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;" +
@"Data Source=D:\Telerik\DataBases\HW\ADONET\06. ReadExcel\Table.xlsx;Extended Properties=""Excel 12.0 XML;HDR=Yes""");
OleDbCommand myCommand = new OleDbCommand("select * from [Sheet1$]", dbConn);
dbConn.Open();
//First way
//using (dbConn) - I think it is better to use dbConn in using clause, but for the demo issues i dont use using.
//{
OleDbDataReader reader = myCommand.ExecuteReader();
while (reader.Read())
{
string name = (string)reader["Name"];
double score = (double)reader["Score"];
Console.WriteLine("{0} - score: {1}", name, score);
}
//}
dbConn.Close();
//Second way
dbConn.Open();
Console.WriteLine();
Console.WriteLine("Second Way");
Console.WriteLine("----------");
DataTable dataSet = new DataTable();
OleDbDataAdapter adapter = new OleDbDataAdapter("select * from [Sheet1$]", dbConn);
adapter.Fill(dataSet);
foreach (DataRow item in dataSet.Rows)
{
Console.WriteLine("{0}|{1}", item.ItemArray[0], item.ItemArray[1]);
}
dbConn.Close();
}
public ReservationForm()
{
reservationConn = new OleDbConnection(connString);
drawPanel();
drawPlan();
InitializeComponent();
}
private static void PrintSpreadsheet(OleDbConnectionStringBuilder connestionString)
{
DataSet sheet1 = new DataSet();
using (OleDbConnection connection = new OleDbConnection(connestionString.ConnectionString))
{
connection.Open();
string selectSql = @"SELECT * FROM [Sheet1$]";
using (OleDbDataAdapter adapter = new OleDbDataAdapter(selectSql, connection))
{
adapter.Fill(sheet1);
}
connection.Close();
}
var table = sheet1.Tables[0];
foreach (DataRow row in table.Rows)
{
foreach (DataColumn column in table.Columns)
{
Console.Write("{0, -20} ", row[column]);
}
Console.WriteLine();
}
}
public List<MonthlyExpenseReportItem> cercaMovimentiCategoria(int idCat)
{
OleDbConnection conn = new OleDbConnection(Properties.Settings.Default.scadenzettiDbConnectionString);
string queryString = "SELECT * FROM QueryReportCategoria";
OleDbCommand cmd = new OleDbCommand(queryString, conn);
cmd.Parameters.Add("idCat", OleDbType.Integer).Value = idCat;
conn.Open();
OleDbDataReader reader = cmd.ExecuteReader();
List<MonthlyExpenseReportItem> list = new List<MonthlyExpenseReportItem>();
while (reader.Read())
{
MonthlyExpenseReportItem mov = new MonthlyExpenseReportItem();
mov.Scadenza = DateTime.Parse(reader[0].ToString());
mov.Importo = decimal.Parse(reader[1].ToString());
mov.Debitore = reader[2].ToString();
mov.Creditore = reader[3].ToString();
mov.Causale = reader[4].ToString();
mov.Tipo = reader[5].ToString();
mov.Ultimato = bool.Parse(reader[6].ToString());
list.Add(mov);
}
reader.Close();
conn.Close();
return list;
}
public bool InsertFtpRecord(FileDetail fileDetail)
{
var lcsql =
"insert into MasterFtp(FileName, CreateTime, Folder, Records, DlTime) values ( ?, ?,?,?,?)";
var connectionString = ConfigurationManager.ConnectionStrings["vfpConnectionString"].ConnectionString;
using (var connection = new OleDbConnection(connectionString))
{
connection.Open();
using (var command = connection.CreateCommand())
{
command.CommandText = "SET NULL OFF";
command.ExecuteNonQuery();
}
using (var command = connection.CreateCommand())
{
command.CommandText = lcsql;
command.Parameters.AddWithValue("FileName", fileDetail.FileName);
command.Parameters.AddWithValue("CreateTime", fileDetail.FileDate);
command.Parameters.AddWithValue("Folder", fileDetail.Folder);
command.Parameters.AddWithValue("Records", fileDetail.Records);
command.Parameters.AddWithValue("DlTime", fileDetail.DownloadTime);
//connection.Open();
var retval = command.ExecuteNonQuery();
var success = (retval == 1);
return success;
}
}
}
public IDataReader ExecuteDataReader(string connectionString, string query)
{
_connection = new OleDbConnection(connectionString);
_connection.Open();
var command = new OleDbCommand(query, _connection);
return command.ExecuteReader();
}
