WPF Bing Maps latitude longitude to Textbox

Question

I'm using a WPF Bing map within my application and its currently set up to center at a certain latitude longitude, I was wondering if instead of having a set latitude longitude that instead I could display a text box and search button where the user could enter the latitude longitude of there chosen location. If so what code should I add?

Xaml

 Title="MainWindow" Height="320.149" Width="475.746">
<Grid>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="0*"/>
        <ColumnDefinition/>
    </Grid.ColumnDefinitions>
    <m:Map CredentialsProvider="My Key" Mode="AerialWithLabels"
           Center="51.521347, -0.138983" ZoomLevel="16"  x:Name="BingMap" Grid.ColumnSpan="2">
        <TextBox x:Name="txtwhere" HorizontalAlignment="Left" Height="35" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="126" Margin="315,10,0,0"  />
        <Button x:Name="Btnsearch" Content="Search" HorizontalAlignment="Left" Height="28" VerticalAlignment="Top" Width="112" Margin="316,57,0,0" Click="Btnsearch_Click"/>

VB

Partial Public Class MainWindow
Inherits Window

Public Sub New()
    InitializeComponent()
    BingMap.Focus()
    'Set map to Aerial Mode with labels
    BingMap.Mode = New AerialMode(True)
End Sub

Lapious Lapious · Accepted Answer · 2015-11-14T22:56:55

You should have more-or less figured it out since you set the "Center" in the Xaml. Just tested it in C# then converted to VB. Let me know if this is what you were looking for (Btnsearch_Click handling Click event of your Btnsearch):

Private Sub Btnsearch_Click(sender As Object, e As RoutedEventArgs)
    Dim latitude As Double = Double.Parse(txtwhere.Text.Substring(0, txtwhere.Text.IndexOf(","C)))
    Dim longitude As Double = Double.Parse(txtwhere.Text.Substring(txtwhere.Text.IndexOf(","C) + 1))

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

Of course this assumes the textbox values are comma separated and valid. it is better to write validation to avoid errors.

WPF Bing Maps latitude longitude to Textbox

1 Answers