Question

代码：

Domain ob = new Domain();

[HttpPost]
public ActionResult Create(Domain ob)
{
    try
    {
        //// TODO: Add insert logic here
        FirstTestDataContext db = new FirstTestDataContext();

        tblSample ord = new tblSample();
        ord = ob;
        db.tblSamples.InsertOnSubmit(ord);

        db.SubmitChanges();
        return RedirectToAction("Index");
    }
    catch
    {
        return View();
    }
}

我在这里收到错误

无法将类型'mvcInsertLinqForms.Models.Domain'隐式转换为'mvcInsertLinqForms.tblSample'

Answer 1

您无法将ord分配给ob，因为它们的类型不同。您似乎正在尝试将视图模型（ob）映射到您的域模型（tblSample）。您可以通过设置域模型的相应属性来执行此操作：

[HttpPost]
public ActionResult Create(Domain ob)
{
    try
    {
        tblSample ord = new tblSample();
        // now map the domain model properties from the 
        // view model properties which is passed as action
        // argument:
        ord.Prop1 = ob.Prop1;
        ord.Prop2 = ob.Prop2;
        ...

        FirstTestDataContext db = new FirstTestDataContext();
        db.tblSamples.InsertOnSubmit(ord);
        db.SubmitChanges();
        return RedirectToAction("Index");
    }
    catch
    {
        return View();
    }
}

要避免手动执行此映射，您可以使用AutoMapper等工具来帮助您在视图模型和域模型之间来回映射。

Answer 2

[HttpPost]
public ActionResult (Domain model) // or (FormCollection form), use form.get("phone")
{
//---
return View();
}

如何将linq对象转换为asp.net对象..？

2 个答案: