/// <summary>
/// 获取数据库信息
/// </summary>
private void BindInfo()
{
int pageIndex = Convert.ToInt32(page);
linq = new linqtisqlClassesDataContext(conn);//实例化Linq连接对象
var result = (from info in linq.员工信息
select new
{
员工编号 = info.员工编号,
员工姓名 = info.员工姓名,
性别 = info.性别,
年龄 = info.年龄,
电话 = info.电话,
地址 = info.地址,
邮箱 = info.邮箱
}).Skip(pageSize * pageIndex).Take(pageSize);
dataGridView1.DataSource = result;
button5.Enabled = button6.Enabled = true;
if (page == 0)
{
button5.Enabled = false;
}
if (page == getCount() - 1)
{
button6.Enabled = false;
}
}
/// <summary>
/// 显示数据库表内容
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
{
linq = new linqtisqlClassesDataContext(conn);
//获取选择的员工编号
textBox1.Text = Convert.ToString(dataGridView1[0, e.RowIndex].Value).Trim();
//根据选择的员工编号获取其详细内容，并重新生成一个表
var result = from info in linq.员工信息
where info.员工编号 == textBox1.Text
select new
{
员工编号 = info.员工编号,
员工姓名 = info.员工姓名,
性别 = info.性别,
年龄 = info.年龄,
电话 = info.电话,
地址 = info.地址,
邮箱 = info.邮箱
};
//在相应的文本框和下拉框中显示员工信息
foreach (var item in result)
{
textBox1.Text = item.员工编号;
textBox2.Text = item.员工姓名;
comboBox1.Text = item.性别;
textBox3.Text = item.年龄;
textBox4.Text = item.电话;
textBox5.Text = item.地址;
textBox6.Text = item.邮箱;
}
}
/// <summary>
/// 修改信息
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
if (textBox1.Text == "")
{
MessageBox.Show("请选择要修改的数据！");
return;
}
linq = new linqtisqlClassesDataContext(conn);//实例化Linq连接对象
//根据员工编号获取要修改的员工信息
var result = from employee in linq.员工信息
where employee.员工编号 == textBox1.Text
select employee;
//对指定的员工信息进行修改
foreach (员工信息 tbemployee in result)
{
tbemployee.员工编号 = textBox1.Text;
tbemployee.员工姓名 = textBox2.Text;
tbemployee.性别 = comboBox1.Text;
tbemployee.年龄 = textBox3.Text;
tbemployee.电话 = textBox4.Text;
tbemployee.地址 = textBox5.Text;
tbemployee.邮箱 = textBox6.Text;
linq.SubmitChanges();
}
MessageBox.Show("信息修改成功！");
BindInfo();
}
/// <summary>
/// 添加数据库信息
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
linq = new linqtisqlClassesDataContext(conn); //实例化Linq连接对象
员工信息 employee = new 员工信息(); //实例化"员工信息"类对象
//为"员工信息"类中的员工实体进行赋值
employee.员工编号 = textBox1.Text;
employee.员工姓名 = textBox2.Text;
employee.性别 = comboBox1.Text;
employee.年龄 = textBox3.Text;
employee.电话 = textBox4.Text;
employee.地址 = textBox5.Text;
employee.邮箱 = textBox6.Text;
linq.员工信息.InsertOnSubmit(employee); //添加员工信息
linq.SubmitChanges(); //提交操作
MessageBox.Show("信息添加成功");
BindInfo();
}
private void 除ToolStripMenuItem_Click(object sender, EventArgs e)
{
if (textBox1.Text == "")
{
MessageBox.Show("请选择要删除的信息！");
return;
}
linq = new linqtisqlClassesDataContext(conn);//实例化linq连接对象
//根据员工编号查询出要删除的员工信息
var result = from employee in linq.员工信息
where employee.员工编号 == textBox1.Text
select employee;
//删除选择的员工信息
linq.员工信息.DeleteAllOnSubmit(result);
//提交操作
linq.SubmitChanges();
MessageBox.Show("信息删除成功！");
BindInfo();
}
