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| 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.Data.OleDb;
namespace OleDB
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
// TODO: данная строка кода позволяет загрузить данные в таблицу "testDataSet.Cartrige". При необходимости она может быть перемещена или удалена.
this.cartrigeTableAdapter.Fill(this.testDataSet.Cartrige);
string mytablename = "tableTest";
//string mybdpath = "G:\\test.mdb";
string conStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + "G:\\test.mdb";
OleDbConnection connection = new OleDbConnection(conStr);
OleDbDataAdapter adapter = new OleDbDataAdapter();
connection.Open();
OleDbCommand command = new OleDbCommand("SELECT * FROM " + mytablename, connection);
connection.Close();
adapter.SelectCommand = command;
DataSet dataSet = new DataSet();
adapter.Fill(dataSet);
dataGridView1.DataSource = dataSet.Tables[0];
adapter.Update(dataSet);
}
private void button1_Click(object sender, EventArgs e)
{
//comboBox1.Items.Clear();
//OleDbConnection dbCon = new OleDbConnection(
// @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=G:\\test.mdb");
//dbCon.Open();
//DataTable tbls = dbCon.GetSchema("tables", new string[] { null, null, null, "TABLE" }); //список всех таблиц
//foreach (DataRow row in tbls.Rows)
//{
// string TableName = row["TABLE_NAME"].ToString();
// comboBox1.Items.Add(TableName);
//}
//dbCon.Close();
//OleDbCommand cmd = new OleDbCommand();
//cmd.CommandText = "NSERT INTO tableTest VALUES (1,2,3)";
//int rowsAffected = cmd.ExecuteNonQuery();
//System.Windows.Forms.MessageBox.Show(rowsAffected.ToString());
//string connectionstring = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Application.StartupPath + @"G:\\test.mdb";
//textBox4.Text = dateTimePicker1.Value.ToString("dd.MM.yyyy");
OleDbConnection thisConnection = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=G:\\test.mdb");
OleDbDataAdapter thisAdapter = new OleDbDataAdapter();
thisAdapter.InsertCommand = new OleDbCommand("INSERT INTO tableTest ([name], [count], [sum], [date]) values (?, ?, ?, ?)", thisConnection);
thisAdapter.InsertCommand.Parameters.Add("@name", OleDbType.VarChar).Value = comboBox1.Text;
thisAdapter.InsertCommand.Parameters.Add("@count", OleDbType.VarChar).Value = textBox2.Text;
thisAdapter.InsertCommand.Parameters.Add("@sum", OleDbType.VarChar).Value = textBox3.Text;
thisAdapter.InsertCommand.Parameters.Add("@date", OleDbType.VarChar).Value = dateTimePicker1.Value.ToString("dd.MM.yyyy");
thisAdapter.SelectCommand = new OleDbCommand("SELECT name,count,sum,date FROM tableTest", thisConnection);
OleDbCommandBuilder thisBuilder = new OleDbCommandBuilder(thisAdapter);
thisConnection.Open();
DataSet thisDataSet = new DataSet();
thisAdapter.Fill(thisDataSet,"tableTest");
DataRow thisRow = thisDataSet.Tables["tableTest"].NewRow();
//thisRow["Код"] = "0";
thisRow["name"] = comboBox1.Text;
thisRow["count"] = textBox2.Text;
thisRow["sum"] = textBox3.Text;
thisRow["date"] = dateTimePicker1.Value.ToString("dd.MM.yyyy");
thisDataSet.Tables["tableTest"].Rows.Add(thisRow);
// thisAdapter.ContinueUpdateOnError = true;
thisAdapter.Update(thisDataSet, "tableTest");
thisConnection.Close();
textBox1.Text = "";
textBox2.Text = "";
textBox3.Text = "";
string mytablename = "tableTest";
//string mybdpath = "G:\\test.mdb";
string conStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + "G:\\test.mdb";
OleDbConnection connection = new OleDbConnection(conStr);
OleDbDataAdapter adapter = new OleDbDataAdapter();
connection.Open();
OleDbCommand command = new OleDbCommand("SELECT * FROM " + mytablename, connection);
connection.Close();
adapter.SelectCommand = command;
DataSet dataSet = new DataSet();
adapter.Fill(dataSet);
dataGridView1.DataSource = dataSet.Tables[0];
adapter.Update(dataSet);
}
private void button2_Click(object sender, EventArgs e)
{
//OleDbConnection dbCon = new OleDbConnection(
// @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=G:\\test.mdb");
//dbCon.Open();
//OleDbDataAdapter dbAdapter1 = new OleDbDataAdapter(@"SELECT " + comboBox1.SelectedItem + @".* FROM " + comboBox1.SelectedItem, dbCon);
//dbAdapter1.InsertCommand = new OleDbCommand("INSERT INTO tableTest ([name], [count], [sum]) values (?, ?, ?)", dbCon);
//DataTable dataTable = new DataTable();
//dbAdapter1.Fill(dataTable + ".*");
//dataGridView1.DataSource = dataTable;
//dbCon.Close();
//try
//{
// string conStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=G:\\test.mdb";
// OleDbConnection oleCon = new OleDbConnection(conStr);
// oleCon.Open();
// OleDbCommand nn = oleCon.CreateCommand();
// nn.CommandText = "SELECT * FROM tableTest";
// nn.ExecuteNonQuery();
// oleCon.Close();
//}
//catch (Exception ex)
//{
// MessageBox.Show(ex.Message);
//}
//string mytablename = "tableTest";
//string mybdpath = "G:\\test.mdb";
//string conStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + "G:\\test.mdb";
//OleDbConnection connection = new OleDbConnection(conStr);
//OleDbDataAdapter adapter = new OleDbDataAdapter();
//connection.Open();
//OleDbCommand command = new OleDbCommand("SELECT * FROM " + mytablename, connection);
//connection.Close();
//adapter.SelectCommand = command;
//DataSet dataSet = new DataSet();
//adapter.Fill(dataSet);
//dataGridView1.DataSource = dataSet.Tables[0];
//adapter.Update(dataSet);
}
private void dataGridView1_MouseClick(object sender, MouseEventArgs e)
{
textBox1.Text = dataGridView1.SelectedRows[0].Cells[0].Value.ToString();
//int n = Convert.ToInt32(dataGridView1.SelectedRows[0].Cells[1].Value);
//numericUpDown1.Value = n;
textBox2.Text = dataGridView1.SelectedRows[0].Cells[2].Value.ToString();
textBox3.Text = dataGridView1.SelectedRows[0].Cells[2].Value.ToString();
}
private void button4_Click(object sender, EventArgs e)
{
if (dataGridView1.SelectedRows.Count > 0)
{
dataGridView1.Rows.RemoveAt(dataGridView1.SelectedRows[0].Index); //удаление
}
else
{
MessageBox.Show("Выберите строку для удаления.", "Ошибка.");
}
}
}
} |
(
