📄 form3.cs
字号:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace mySQLDataAdapter
{
public partial class FormOrders : Form
{
public string CustomerID = "";
public FormOrders()
{
InitializeComponent();
}
private void FormOrders_Load(object sender, EventArgs e)
{
sqlConnection conn = new sqlconnection("data source=(local)"+"initial catalog=Northwind;"
+"integrated security=SSPI;"+"persist security info=False;"
+"workstation id=SUN;"+"packet size=4096");
string sqlStatement = "SELECT * FROM Orders WHERE CustomerID=@ID" + "ORDER BY OrderID";
sqlCommand sqlcmd = new sqlCommand(sqlStatement,conn);
sqlcmd.Parameters.AddWithValue("@ID",CustomerID);
conn.Open();
sqlDataReader sdr = sqlcmd.ExecuteReader();
int cols = sdr.FieldCount;
lvOrders.BeginUpdate();
for (int i = 0; i < cols; i++)
{
lvOrders.Columns.Add(sdr.GetName(i),100,HorizontalAlignment.Left);
}
string[] lvitem = new string[cols];
object[] values=new object[cols];
while (sdr.Read())
{
sdr.GetValues(values);
for(int i=0;i<values.Length;i++)
lvitem[i]=values[i].ToString();
ListViewItem lvi = new ListViewItem(lvitem);
lvOrders.Items.Add(lvi);
}
lvOrders.EndUpdate();
sdr.Close();
conn.Close();
}
}
}
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -