Question

我在为新创建提交表单时遇到问题，我无法验证变量dbgeometry数据的问题..错误消息是“没有为此对象定义参数的构造函数”。这是我的代码控制器：

var list = new List<Table1>()
{
    new Table1(){ Column1="x", Column2="y", Column3= "z"},
    new Table1(){ Column1="x", Column2="y", Column3= "t"},
    new Table1(){ Column1="a", Column2="b", Column3= "c"},
};

var resulut = list.GroupBy(x => new { C1 = x.Column1, C2 = x.Column2 })
                  .Select(g => g.FirstOrDefault());

来自EF的我的模特：

    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Create([Bind(Include = "id,name,Location")] schoolinfo schoolinfo)
    {
        if (ModelState.IsValid)
        {
            db.schoolinfo.Add(schoolinfo);
            db.SaveChanges();
            return RedirectToAction("Index");
        }
        return View(schoolinfo);
    }

Answer 1

使用sqlQuery命令的最佳方式

var id = form["id"];
            var name = form["name"];
            var lat = form["Location.Latitude"];
            var lng = form["Location.Longitude"];
            db.Database.ExecuteSqlCommand("insert into [dbo].[schoolinfo] values ('" + id + "','" + name + "',geography::Point(" + lat + ", " + lng + ", 4326))");

它100％工作

提交dbgeography表单

1 个答案: