Question

我需要使用name在字典中查找订单，但无法确定如何使用名称（字符串）来查找匹配顺序，因为字典的值是对象Order。

Public Class MainForm
    Public Shared orders As New Dictionary(Of Integer, Order)

Private Sub btnFindName_Click(sender As Object, e As EventArgs) Handles btnFindName.Click

    Dim orderFound As Boolean

    Dim name As String = txtFindName.Text

    For Each order In orders

        If order.Value = name Then

            orderFound = True
            Return

        End If

    Next
    If Not orderFound Then
        errProvider.SetError(txtFindName, "No order found with that name.")
        txtFindName.Focus()
        Return

    End If
End Sub

Answer 1

当你遍历Orders时，你得到的是KeyValuePair整数，Order。假设您的Order类具有Name属性：

Public Class Order
    Public Property Name As String
End Class

您可以这样调整：

For Each Order As KeyValuePair(Of Integer, Order) In orders

    If Order.Value.Name = name Then

        orderFound = True
        Return

    End If

Next

如果你想对用户好，不要区分大小写：

If Order.Value.Name.ToUpper() = name.ToUpper() Then

使用客户名称在我的字典中查找订单

1 个答案: