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我们如何将 datagridview 数据绑定到某些 My.Settings(用户范围)属性,以便用户可以编辑值?这必须是一个datagridview。我知道我们可以在带有文本框等的表单中绑定到 My.Settings,但在这种情况下,我们只希望它作为 datagridview 中的可编辑字符串列表。

当然,一些 My.Settings 条目可以有不同的数据类型,这会使事情复杂化,但通常我们只使用字符串和布尔值。

另外,假设用户知道他必须输入字符串“true”才能将布尔值设置为 true。不需要复选框列。


这是我们正在使用的(并且有效),只是在寻找更好,更精简的方法:

这是课程:

Public Class MySettingsMaint

...

然后我们有一个绑定列表(这可能是 yuk):

Private list As BindingList(Of BindingKeyValuePair)

这是datagridview绑定的内容:

Public ReadOnly Property DataSource() As Object 
    Get

        list = New BindingList(Of BindingKeyValuePair)
        list.Add(New BindingKeyValuePair("PhoneExtension", My.Settings.PhoneExtension.ToString.ToLower))
        list.Add(New BindingKeyValuePair("PhonePIN", My.Settings.PhonePIN.ToString.ToLower))
        list.Add(New BindingKeyValuePair("PhoneEnabled", My.Settings.PhoneEnabled.ToString.ToLower))
        Return From k In list Order By k.Key

        Return list
    End Get
End Property

...

Public Sub LoadGrid(ByVal grd As DataGridView) Implements 
/some stuff here to create two DataGridViewColumns
/one bound to Key, the other bound to Setting

End Sub

更多 yuk 这里,保存回 My.Settings:

Public Sub Save() Implements IMaintainable.Save
    My.Settings.PhoneExtension = (From x As BindingKeyValuePair In list Where x.Key = "PhoneExtension" Select x.Value.ToLower).ToList(0)
    My.Settings.PhonePIN = (From x As BindingKeyValuePair In list Where x.Key = "PhonePIN" Select x.Value.ToLower).ToList(0)
    My.Settings.PhoneEnabled = (From x As BindingKeyValuePair In list Where x.Key = "PhoneEnabled" Select x.Value.ToLower).ToList(0) = "true"

    My.Settings.Save()

End Sub

上述类所需的私有类:

Private Class BindingKeyValuePair

    Sub New(ByVal k As String, ByVal v As String)
        Key = k
        Value = v
    End Sub

    Private _Key As String
    Public Property Key() As String
        /basic getsetter
    End Property


    Private _Value As String
    Public Property Value() As String
         /basic getsetter
    End Property


End Class
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1 回答 1

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您应该使用PropertyGrid 控件吗?它将有助于支持更丰富的属性类型。

于 2011-06-08T20:20:54.327 回答