Question

try
{
    // Data Source=FAHAD-PC\SQLEXPRESS;Initial Catalog="Student management";Integrated Security=True
    // server=FAHAD-PC\\SQLEXPRESS;database=Student management;

    String str = "Data Source=FAHAD-PC\\SQLEXPRESS;Initial Catalog=Student management;Integrated Security=True;";
    String query = "Insert into Users (Username, Password) values('usern' , 'userpassword');";
    SqlConnection con = new SqlConnection(str);
    SqlCommand cmd = new SqlCommand(query, con);



    con.Open();
    DataSet ds = new DataSet();
    MessageBox.Show("connect with sql server");

    con.Close();

    MessageBox.Show("Inserted sucessfully");
    usern = " ";
    userpassword = " ";
}
catch (Exception err) 
{
    MessageBox.Show(err.Message);
}

这里是我的连接成功的代码，插入的查询msg也显示但无法获取我的数据库中的条目。

Answer 1

尝试以下代码

try
{
    // Data Source=FAHAD-PC\SQLEXPRESS;Initial Catalog="Student management";Integrated Security=True
    // server=FAHAD-PC\\SQLEXPRESS;database=Student management;

    String str = "Data Source=FAHAD-PC\\SQLEXPRESS;Initial Catalog=Student management;Integrated Security=True;";
    String query = "Insert into Users (Username, Password) values('usern' , 'userpassword');";
    SqlConnection con = new SqlConnection(str);
    SqlCommand cmd = new SqlCommand(query, con);



    con.Open();
    cmd.ExecuteNonQuery();

    MessageBox.Show("connect with sql server");

    con.Close();

    MessageBox.Show("Inserted sucessfully");
    usern = " ";
    userpassword = " ";
}
catch (Exception err) 
{
    MessageBox.Show(err.Message);
}

数据库输入未完成

1 个答案: