作者:ZQ我是疯癫小karmenRJ | 来源:互联网 | 2023-02-02 16:45
有没有人知道如何解决此错误消息
错误CS1729:'SQLiteConnection'不包含带有1个参数的构造函数(CS1729)
这是它发生的文件
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using SQLite;
using Android.Util;
using SQLite.Net;
namespace CPDEP1
{
public class DataBase
{
string folder = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
public bool createDataBase()
{
try
{
using (var cOnnection= new SQLiteConnection(System.IO.Path.Combine(folder, "Persons.db")));
{
connection.CreateTable();
return true;
}
}
catch(SQLiteException ex)
{
Log.Info("SQLiteEx", ex.Message);
return false;
}
}
public bool insertIntoTablePerson(Person person)
{
try
{
using (var cOnnection= new SQLiteConnection(System.IO.Path.Combine(folder, "Persons.db")))
{
connection.Insert(person);
return true;
}
}
catch(SQLiteException ex)
{
Log.Info("SQLiteEx", ex.Message);
return false;
}
}
public List selectTablePerson()
{
try
{
using (var cOnnection= new SQLiteConnection(System.IO.Path.Combine(folder, "Persons.db")))
{
return connection.Table().ToList();
}
}
catch (SQLiteException ex)
{
Log.Info("SQLiteEx", ex.Message);
return null;
}
}
public bool updateTablePerson(Person person)
{
try
{
using (var cOnnection= new SQLiteConnection(System.IO.Path.Combine(folder, "Persons.db")))
{
connection.Query("UPDATE Person set Nom=?,Prenom=?,TelephOne=?,Addresse=?,Courriel=?,Cin=? Where Id=?,",person.Nom,person.Prennom,person.Telephone,person.Addresse,person.Courriel,person.Cin,person.Id);
return true;
}
}
catch (SQLiteException ex)
{
Log.Info("SQLiteEx", ex.Message);
return false;
}
}
public bool deleteTablePerson(Person person)
{
try
{
using (var cOnnection= new SQLiteConnection(System.IO.Path.Combine(folder, "Persons.db")))
{
connection.Delete(person);
return true;
}
}
catch (SQLiteException ex)
{
Log.Info("SQLiteEx", ex.Message);
return false;
}
}
public bool selectQueryTablePerson(int Id)
{
try
{
using (var cOnnection= new SQLiteConnection(System.IO.Path.Combine(folder, "Persons.db")))
{
connection.Query("SELECT * FROM Person Where Id=?", Id);
return true;
}
}
catch (SQLiteException ex)
{
Log.Info("SQLiteEx", ex.Message);
return false;
}
}
}
}
在此先感谢您的帮助
1> teapeng..:
我按照这里的说明操作:https://wolfprogrammer.com/2016/09/10/adding-a-sqlite-database-to-xamarin-forms/并得到了同样的错误.
然后我在这里提到了Microsoft指令(https://msdn.microsoft.com/en-us/magazine/mt736454.aspx),并注意到Frank Krueger写的两个非常相似的东西.请检查下面的图像,下载以绿色突出显示的图像,而不是红色图像.