Bing地图PushPin错误

Question

你好，我正试图通过纬度和经度来确定我的图钉，但由于某种原因，我在纬度下得到了一条错误线pushpin（纬度，经度）如果我只是将pushpin更改为Location，我的地图很乐意使用相同的代码居中，但我不明白为什么它不适用于pushpin？

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    Dim latitude As Double = Double.Parse(TXTLAT.Text.Substring(0, TXTLAT.Text.IndexOf(","c)))
    Dim longitude As Double = Double.Parse(TXTLong.Text.Substring(TXTLong.Text.IndexOf(","c) + 1))

    UserControl11.BingMap.Center = New Microsoft.Maps.MapControl.WPF.Pushpin(latitude, longitude)
End Sub

Answer 1

要使地图居中，需要传递Location对象，而不是Pushpin。Pushpin是一个显示在地图顶部的UIElement，其中中心属性是地图的位置。如果你想将地图集中在一个位置，并在那里显示图钉，请执行以下操作：

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    Dim latitude As Double = Double.Parse(TXTLAT.Text.Substring(0, TXTLAT.Text.IndexOf(","c)))
    Dim longitude As Double = Double.Parse(TXTLong.Text.Substring(TXTLong.Text.IndexOf(","c) + 1))
    Dim location = New Microsoft.Maps.MapControl.WPF.Location(latitude, longitude)
    Dim Pin = New Microsoft.Maps.MapControl.WPF.Pushpin()
    pin.Location = location
    UserControl11.BingMap.Center = location
End Sub

您可以在此处找到关于Bing Maps WPF控件的完整文档：https://msdn.microsoft.com/en-us/library/hh750210.aspx