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bvc.txt

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+SqlConnection connection;
+SqlCommand command;
+SqlDataAdapter adapter;
+DataTable table;
+
+connection = SqlConnection("Server//....);
+connection = new SqlConnection;
+command = new SqlCommand();
+command.Connection = connection;
+command.Type = Command.Type.Text;
+adapter = new SqlAdapter(command);
+table = new DataTable();
+
+datagridview.Columns.Clear();
+datagridview.DataSource=null;
+command.CommandText=text;
+table.Clear();
+adapter.Fill(table);
+datagrid.DataSource=table;
+
+
+connection = new SqlConnection(::);
+command = new SqlCommand;
+command.Connection= connection;
+command.Type= Command.Tyype.Text;
+adapter = new SqlDataAdater(command);
+table= new DataTable();
+
+dgv.Columns.Clear();
+dgv.DataSource = null;
+command.CommandText=text;
+table.Clear();
+adapter.Fill(table);
+dgv.Datasource=table;
+
+connection = new SqlConnection("");
+commnd = new SqlCommand();
+coomand.Connection=connection;
+command.Type=Command.Type.Text;
+adapter= new SqlDataAdapter(command);
+table = new DataTable();
+
+dgv.Columns.Clear()l
+dgv.DataSource=null;
+command.CommandText=text;
+table.Clear();
+adapter.Fill(table);
+dgv.datasource=table;
+
+SqlConnection connection;
+SqlCommand command;
+SqlDataAdapter adapter;
+DataTable table;
+
+connection = new SqlConnection();
+connection = new SqlConnection;
+command = new command;
+command.Connection=connection;
+command.Type = Command.Type.Text;
+adapter = new SqlDataAdapter(coomand);
+table = new DataTable();
+
+dgv.COlumns.Clear();
+dgv.DataSource = null;
+command.CommandText=text;
+table.Clear();
+adapter.Fill(text);
+dgv.DataSource = table;
+
+
+SqlConnection connection;
+SqlCommand command;
+SqlDataAdapter adapter;
+DataTable table;
+
+connection = new SqlConnection();
+command = new SqlCommand();
+command.Connection = connection;
+command.Type = Command.Type.Text;
+adapter = new SqlDataAdapter(command);
+table = new DataTable();
+
+dgv.Columns.Clear();
+dgv.DataSource=null;
+command.CommandText=text;
+table.Clear();
+adapter.Fill(text);
+dgv.Datasource=table;
+
+
+if (MessageBox.Show("вы хотите удалить?", "Ошибка", MessageBoxButtons.YesNo,MessageBoxIcon.Question)==DialogResult.Yes)
+            {
+                connection.Open();
+                command.CommandText = ("Delete From Users Where id=@id");
+                command.Parameters.AddWithValue("@id",dataGridView1.CurrentRow.Cells[0].Value);
+                command.ExecuteReader();
+                command.Parameters.Clear();
+                connection.Close();
+                MessageBox.Show("МНе похуй баля");
+                ShowTable("Select * From Users");
+                dataGridView1.Columns[0].Visible = false;
+
+
+   if(MessageBox.Show("Удалить пользователя?","Внимание",MessageBoxButtons.YesNo,MessageBoxIcon.Question)==DialogResult.Yes)
+            {
+                connection.Open();
+                command.CommandText=("Delete From Users Where id=@id");
+                command.Parameters.AddWithValue("@id", dataGridView1.CurrentRow.Cells[0].Value);
+                command.ExecuteReader();
+                command.Parameters.Clear();
+                connection.Close();
+            }
+
+     var db = new DataClasses1DataContext();
+            var data = new Users
+            {
+                Login = LogBox.Text,
+                Password = PassBox.Text
+            };
+            db.Users.InsertOnSubmit(data);
+            db.SubmitChanges();
+            MessageBox.Show("Пользователь успешно добавлен!");
+            Form1 p = new Form1();
+            p.Show();
+            this.Hide();
+
+ private void Войти_Click(object sender, EventArgs e)
+        {
+            var db = new BaseDataContext();
+            var data = db.Users.FirstOrDefault(u =>u.Login == LoginBox.Text&&u.Password == PassBox.Text);
+            if (data == null)
+            {
+                MessageBox.Show("ne");
+            }
+            else
+            {
+                Просмотр m = new Просмотр();
+                m.Show();
+                this.Hide();
+            }