能否返回数据库中最后一个主键?
以下是我连接并向数据库添加内容的部分代码,如果需要更多信息,请告知。
public partial class MainWindow : Window
{
System.Data.SqlClient.SqlConnection con;
System.Data.SqlClient.SqlDataAdapter da;
DataSet sessions;
主要
public MainWindow()
{
InitializeComponent();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
con = new System.Data.SqlClient.SqlConnection();
sessions = new DataSet();
con.ConnectionString = "Data Source=.\\SQLEXPRESS;AttachDbFilename=C:\\Users\\md\\PokerDataBase.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True";
con.Open();
string sql = "SELECT * From Sessions";
da = new System.Data.SqlClient.SqlDataAdapter(sql, con);
da.Fill(sessions, "Sessions");
con.Close();
System.Data.SqlClient.SqlCommandBuilder cb;
cb = new System.Data.SqlClient.SqlCommandBuilder(da);
DataTable dt = sessions.Tables["Sessions"];
DataRow table = sessions.Tables["Sessions"].Rows[position];
table[0] = "Some Data";
table[1] = "Some Data";
table[2] = "Some Data";
table[3] = 2;
table[4] = 3;
sessions.Tables["Sessions"].Rows[2].Delete();
sessions.Tables["Sessions"].Rows.InsertAt(table, 2);
da.Update(sessions, "Sessions");
}
}
感谢您的关注!
谢谢观看!