Question

我在windows phone 7中使用sqlite for database 我正在使用Community.CsharpSqlite.Wp第三方dll

我创建了Customer Table，其中包含ID，Name，Email，Desc

等字段

 public class Customer
{
    public int ID { get; set; }
    public string Name { get; set; }
    public string Email { get; set; }
    public string Desc { get; set; }
    public Customer() { }
    public Customer(int Id, string name, string email, string desc)
    {
        ID = Id;
        Name = name;
        Email = email;
        Desc = desc;
    }      
}

和我的插入语句如下点击按钮

     private void btnAdd_Click(object sender, RoutedEventArgs e)
     { 

        string strInsert = " Insert into Customer (Name,Email,Desc) values(@Name,@Email,@Desc)";

        Customer tst = new Customer
                {
                    Name = "Name " + i,
                    Email = Name + "@" + "aaa.com",
                    Desc = "Desc for " + i
                };
        rec = (Application.Current as App).db.Insert < Customer>(tst,strInsert);

     }

此代码工作正常..值将被插入数据库。

但是，如果我硬编码值像

“插入客户（姓名，电子邮件，说明）值（'ABCD'，'TEST @ gmail.com'，'DESCRI'）”

我的代码改变了这个

 private void btnAdd_Click(object sender, RoutedEventArgs e)
{ 
    Customer tst = new Customer();             
    string strInsert = " Insert into Customer (Name,Email,Desc) values ('ABCD','TEST@gmail.com','DESCRI')";           
    rec = (Application.Current as App).db.Insert < Customer>(tst,strInsert);
}

我收到错误“插入失败：绑定或列索引超出范围” 在DBHelper.cs

中

Answer 1

您正在调用带有对象的泛型重载。从该对象/类型我假设帮助器创建的参数需要匹配实际sql语句中的参数占位符。

如果要执行不具有或不需要参数的SqliteCommand，请使用不会占用对象的重载，例如：

cmd.ExecuteNonQuery();

无法在wp7中将硬编码值插入sqlite

1 个答案: