📄 form1.cs
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using System;
using System.Linq;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlServerCe;
namespace DeviceSQLDemo2
{
public partial class Form1 : Form
{
DBResultSets.OrdersResultSet orderSet;
string connString = @"Data Source=.\DB.sdf";
public Form1()
{
InitializeComponent();
}
private void menuItem7_Click(object sender, EventArgs e)
{
Application.Exit();
}
private void menuItem1_Click(object sender, EventArgs e)
{
BindingSource bs = new BindingSource();
orderSet.Bind(bs);
this.dataGrid1.DataSource = bs;
}
private void Form1_Load(object sender, EventArgs e)
{
orderSet = new DeviceSQLDemo2.DBResultSets.OrdersResultSet(connString, ResultSetOptions.Scrollable | ResultSetOptions.Sensitive | ResultSetOptions.Updatable);
}
private void menuItem3_Click(object sender, EventArgs e)
{
Random random = new Random();
int qty = random.Next(10);
orderSet.AddOrdersRecord(System.DateTime.Now, "123", 1, qty, 100 * qty);
}
private void menuItem4_Click(object sender, EventArgs e)
{
Random random = new Random();
int qty = random.Next(10);
orderSet.ReadAbsolute(this.dataGrid1.CurrentRowIndex);
orderSet.Qty = qty;
orderSet.Price = 100 * qty;
orderSet.Update();
}
private void menuItem5_Click(object sender, EventArgs e)
{
orderSet.ReadAbsolute(this.dataGrid1.CurrentRowIndex);
orderSet.Delete();
}
}
}
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