Linq to sql 如何从SQLCe数据库中检索数据并将其绑定到ListBox
我已使用以下代码将数据插入SqlCe数据库: using (DBContacts context = new DBContacts(ConnectionString)) { TblContacts tblCtc = new TblContacts(); tblCtc.FirstName = txtBoxFirstNm.Text; tblCtc.LastName = txtBoxLastNm.Text; tblCtc.Mobile1 = txtMobile1.Text; tblCtc.Email1 = txtEmail1.Text; context.TblContacts.InsertOnSubmit(tblCtc); context.SubmitChanges(); MessageBox.Show("Inserted Ok."); }Linq to sql 如何从SQLCe数据库中检索数据并将其绑定到ListBox,linq-to-sql,windows-phone-7,sql-server-ce,Linq To Sql,Windows Phone 7,Sql Server Ce,我已使用以下代码将数据插入SqlCe数据库: using (DBContacts context = new DBContacts(ConnectionString)) { TblContacts tblCtc = new TblContacts(); tblCtc.FirstName = txtBoxFirstNm.Text; tblCtc.LastName = txtBo
public List<TblContacts> GetAllContact()
{
using (DBContacts context = new DBContacts(ConnectionString))
var contacts = from m in context.TblContacts select m;
return contacts.Take(100).ToList();
}
使用(DBContacts上下文=新的DBContacts(ConnectionString))
{
TblContacts tblCtc=新的TblContacts();
tblCtc.FirstName=txtBoxFirstNm.Text;
tblCtc.LastName=txtBoxLastNm.Text;
tblCtc.Mobile1=txtMobile1.Text;
tblCtc.Email1=txtEmail1.Text;
context.TblContacts.InsertOnSubmit(tblCtc);
context.SubmitChanges();
MessageBox.Show(“插入确定”);
}
问题:
public List<TblContacts> GetAllContact()
{
using (DBContacts context = new DBContacts(ConnectionString))
var contacts = from m in context.TblContacts select m;
return contacts.Take(100).ToList();
}
1) 如何使用select from Linq To SQL并显示检索到的数据
using (DBContacts context = new DBContacts(ConnectionString))
{
IEnumerable ctc = from c in context.TblContacts select c;
// what to get the result and display ??
// txtBlkFirstname.Text = ctc.FirstName ??
// txtBlkLastname.Text = ctc.LastName ??
.....
}
public List<TblContacts> GetAllContact()
{
using (DBContacts context = new DBContacts(ConnectionString))
var contacts = from m in context.TblContacts select m;
return contacts.Take(100).ToList();
}
使用(DBContacts上下文=新的DBContacts(ConnectionString))
{
IEnumerable ctc=来自上下文中的c。TblContacts选择c;
//获取结果和显示什么??
//txtBlkFirstname.Text=ctc.FirstName??
//txtBlkLastname.Text=ctc.LastName??
.....
}
1a)使用哪一种?可数的还是可数的
public List<TblContacts> GetAllContact()
{
using (DBContacts context = new DBContacts(ConnectionString))
var contacts = from m in context.TblContacts select m;
return contacts.Take(100).ToList();
}
1b)Select语句返回什么?如何处理数据返回
public List<TblContacts> GetAllContact()
{
using (DBContacts context = new DBContacts(ConnectionString))
var contacts = from m in context.TblContacts select m;
return contacts.Take(100).ToList();
}
1c)如何从Iqueryable或IEnumerable中取出数据,并为TextBlock控件赋值
public List<TblContacts> GetAllContact()
{
using (DBContacts context = new DBContacts(ConnectionString))
var contacts = from m in context.TblContacts select m;
return contacts.Take(100).ToList();
}
------如何将数据绑定到列表框
您好,我能再多拿一点代码吗?如果您能告诉我遗漏了哪一部分,我将不胜感激。我被第二部分卡住了:检索数据。你能告诉我如何用一个文本块将数据绑定到列表框中吗?喜欢在textBlock中绑定要包括什么?谢谢
public List<TblContacts> GetAllContact()
{
using (DBContacts context = new DBContacts(ConnectionString))
var contacts = from m in context.TblContacts select m;
return contacts.Take(100).ToList();
}