Question

我在mvc vb.net中绑定输入类型单选按钮时遇到问题。我在模型属性中传递值，但无法基于值绑定单选按钮。下面是单选按钮的html：

Checking:<input type="radio" id="rdChecking" name="C" value="Checking"/>
        Savings:<input type="radio" id="rdSavings" name="S" value="Savings" />

在这里我定义了模型：

Public Class AgencySweepSettingsModel
    ....
    ....
    Public Property AccountTypeChecking As String
    Public Property AccountTypeSaving As String
End Class

这里我要在模型属性中传递值：

If dsAgencySweepInfo.Tables(0).Rows(0).Item(5) = "C" Then
                            .AccountTypeChecking = "C"
                        Else
                            .AccountTypeSaving = "S"
                        End If

请告诉我如何绑定此单选按钮。

Answer 1

最好使用强类型的@Html.RadioButtonFor()助手来解决单选按钮绑定问题，如下例所示：

模型

Public Class AgencySweepSettingsModel
    ' other properties

    Public Property AccountType As String
End Class

查看

@Html.RadioButtonFor(Function (model) model.AccountType, "Checking", New With { Key .id = "rdChecking" })<label for="rdChecking">Checking</label>

@Html.RadioButtonFor(Function (model) model.AccountType, "Savings", New With { Key .id = "rdSavings" })<label for="rdSavings">Savings</label>

控制器操作

Public Function ActionName() As ActionResult
    Dim model As AgencySweepSettingsModel = New AgencySweepSettingsModel()

    ' other stuff

    ' assume dsAgencySweepInfo is a DataSet

    If dsAgencySweepInfo.Tables(0).Rows(0).Item(5) = "C" Then
        model.AccountType = "Checking"
    Else
        model.AccountType = "Savings"
    End If

    ' other stuff

    Return View(model)    
End Function

<HttpPost()>
Public Function ActionName(ByVal model As AgencySweepSettingsModel) As ActionResult
    ' do something
    Return View(model)
End Function

如果您仍然想使用标准的BindAttribute而不是强类型的视图模型，则name元素的<input>属性必须与包含属性名称的Include部分匹配对于两个单选按钮：

<input type="radio" id="rdChecking" name="AccountType" value="Checking"/><label for="rdChecking">Checking</label>
<input type="radio" id="rdSavings" name="AccountType" value="Savings" /><label for="rdSavings">Savings</label>

请注意，由于单选按钮在同一组中始终只有一个选定值，因此应使用绑定到多个<input type="radio" />元素的单个属性。

在MVC VB.NET中绑定输入类型广播的问题

1 个答案: