如何导入我的数据库? [英] How to import my database ?
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问题描述
我不知道如何在这里导入数据库.这是代码:
I don''t know how I can import DB here. This is code :
namespace f3m
{
public partial class sign_in : Form
{
string connectionString = f3m.Properties.Settings.Default.Setting;
SqlConnection con;
SqlCommand cmd;
DataSet ds;
Random rd = new Random();
// declaration of sql command of userinfo table
string selectStringuser = "select * from UserInfo";
string dataTableNameuser = "UserInfo";
SqlDataAdapter daUser;
// declaration of sql command of Session table
string insertString = "INSERT INTO Session ( UserId,MultiCastSessionIP,SessionName,TeacherName,Description) VALUES ( @UserId,@MultiCastSessionIP,@SessionName,@TeacherName,@Description) ";
string selectStringsession = "select * from Session";
string dataTableNamesession = "Session";
SqlDataAdapter daSession;
// Global varables
string TeacherName;
string userid;
public sign_in()
{
InitializeComponent();
InitializeCommand();
rd.Next(224, 239);
Form1 obj = new Form1();
// userid
userid = obj.txtBoxUserID.Text;
// TeacherName
for (int i = 0; i < ds.Tables[dataTableNamesession].Rows.Count - 1; i++)
{
if (userid == ds.Tables[dataTableNameuser].Rows[i]["UserId"].ToString())
{
TeacherName = ds.Tables[dataTableNameuser].Rows[i]["NickName"].ToString();
}
}
}
void InitializeCommand()
{
con = new SqlConnection(connectionString);
cmd = new SqlCommand();
try
{
con.Open();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
daUser = new SqlDataAdapter(selectStringuser, con);
daSession = new SqlDataAdapter(selectStringsession, con);
ds = new DataSet();
daUser.Fill(ds,dataTableNameuser);
daSession.Fill(ds,dataTableNamesession);
}
// clear all text box of this form
void clearField()
{
txtSessionName.Text = "";
txtDescription.Text = "";
txtSessionFinishTime.Text = "";
txtSessionStartTime.Text = "";
}
private void tabPage1_Click(object sender, EventArgs e)
{
}
private void sign_in_Load(object sender, EventArgs e)
{ // display some field of table Session on listbox1
foreach(DataRow r in ds.Tables[dataTableNamesession].Rows)
{
listBox1.Items.Add(r[2]+"\t"+r[3]+"\t"+r[4]+"\t"+r[5]+"\t"+r[6]+"\t"+r[7]);
}
}
// create session button
private void button1_Click(object sender, EventArgs e)
{ //insert
if (txtDescription.Text == "" || txtSessionName.Text == "")
MessageBox.Show("First Fill The Blank(s)");
else
{
cmd = con.CreateCommand();
cmd.CommandText = insertString;
cmd.Parameters.Add("@UserId", SqlDbType.VarChar, 50);
cmd.Parameters.Add("@MultiCastSessionIP", SqlDbType.VarChar, 50);
cmd.Parameters.Add("@SessionName", SqlDbType.Char, 10);
cmd.Parameters.Add("@TeacherName", SqlDbType.Char, 10);
cmd.Parameters.Add("@Description", SqlDbType.Text);
cmd.Parameters.Add("@SessionStartTime", SqlDbType.Time);
cmd.Parameters.Add("@SessionFinishTime", SqlDbType.Time);
cmd.Parameters.Add("@Date", SqlDbType.Date);
cmd.Parameters.Add("@Day", SqlDbType.VarChar, 50);
//userid
cmd.Parameters["@UserId"].Value = userid;
//multicastip
for (int i = 0; i < ds.Tables[dataTableNamesession].Rows.Count - 1; i++)
{
if (rd != ds.Tables[dataTableNamesession].Rows[i]["MultiCastSessionIP"])
{
cmd.Parameters["@MultiCastSessionIP"].Value ="192.0.0.1";
}
else
{
rd.Next(224, 239);
}
}
// sessionName,TeacherName,Descrition
cmd.Parameters["@SessionName"].Value = txtSessionName.Text;
cmd.Parameters["@TeacherName"].Value = TeacherName;
cmd.Parameters["@Description"].Value = txtDescription.Text;
// if user fill SessionStartTime,SessionFinishTime,Date,Day.textbox
if (txtSessionStartTime.Text != "" || txtSessionFinishTime.Text != "" || comboBox1.SelectedItem != "")
{
cmd.Parameters["@SessionStartTime"].Value = "12.00.00";
cmd.Parameters["@SessionFinishTime"].Value = "01.00.00";
cmd.Parameters["@Date"].Value = "2/5/2011";
cmd.Parameters["@Day"].Value = comboBox1.SelectedItem;
}
else
{ //if user fill SessionStartTime,SessionFinishTime,Date,Day.textbox
MessageBox.Show("are u sure to start session now");
Session ob= new Session();
ob.Show();
}
cmd.ExecuteNonQuery();
MessageBox.Show("Session Done Successfuly", "Congratulation", MessageBoxButtons.OK);
clearField();
}
}
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
}
}
}
推荐答案
我的意思是因为此代码与数据库有关，所以可能有人需要我的数据库，但实际上我可以.在这里添加它
不，您不需要将数据库放在本地或应用程序文件夹中.
您需要做的是将数据库托管在某个地方并公开，以便您可以使用连接字符串连接到该数据库.
阅读有关连接字符串 [ ^ ].
可以在这里阅读有关数据通信的更多信息:使用ADO.NET访问数据 [ ^ ]
i mean because this code is related to data base so may be any one need my data base but really i can''t add it it here
No, you don''t need to put your database locally or in the application folder or so.
All you need is to have a database hosted somewhere and exposed such that you can connect to it using connection string.
Read about Connection String[^] here.
Further info regarding the data communication can be read here: Accessing data with ADO.NET[^]
希望 [ ^ ]可能会帮助您解决问题.
Hope this[^] might help you to solve your problem.
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