Question

这是我的代码：

控制器：

Private Sub Workbook_Open()
    Const FILENAME As String = "Export.xlsx"
    Const PROMPT As String = "Press [Yes] to continue or [No] to cancel"
    Dim FilePath As String, Title As String, SharedFolder As String

    ToggleEvents False, False

    Do
        SharedFolder = getSharedFolder()

        If Len(SharedFolder) = 0 Then
            Title = "Folder not found"
        Else
            FilePath = SharedFolder & FILENAME
            If Len(Dir(FilePath)) = 0 Then Title = "File not found"
        End If

        If Len(SharedFolder) = 0 Then
            If MsgBox(PROMPT:=PROMPT, Buttons:=vbYesNo, Title:=Title) = vbYes Then
                setSharedFolder
            Else
                Exit Sub
            End If
        End If
    Loop Until Len(Dir(FilePath))

    UpdateWorkBook FilePath

    ToggleEvents True, True

End Sub

型号：

public ActionResult InsertData(CoModel coModel)
{
    if (ModelState.IsValid)
    {
        db.Entry(coModel).State = EntityState.Modified;
        db.SaveChanges();
        return RedirectToAction("Index");
    }
    return View(coModel);
}

查看：

public class CoModel
{
    [Key]
    public int id { get; set; }      
    public string item_no { get; set; }       
    public string destination { get; set; }      
    public int total_piece { get; set; }
}

这是我的问题。为什么每次按下Save按钮时控制器都会收到零/零值？我的编码错了吗？

Answer 1

您正在使用隐藏的DisplayFor。您必须使用EditorFor，TextBox，TextBoxFor，TextArea和其他渲染输入HTML类型不同的隐藏。

Controller从MVC4中的View接收null / zero值

1 个答案: