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| 16.23.8.Get User Input from a Slider |
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<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="WPF" Height="200" Width="300">
<StackPanel>
<TextBlock Margin="5" Text="0" FontSize="20"
HorizontalAlignment="Center" Name="txtSliderValue" />
<Slider LargeChange="10" Margin="5" Maximum="1000" Minimum="0"
Name="slider1" TickPlacement="TopLeft"
Ticks="100, 200, 400, 800" Value="0"
ValueChanged="slider_ValueChanged" />
<Button Name="btnGetSliderValue1" Width="100"
Click="GetSliderValue_Click">Get Slider 1 Value</Button>
<Slider IsSnapToTickEnabled="True" Margin="5" Maximum="1000"
Minimum="0" Name="slider2" TickFrequency="25"
TickPlacement="BottomRight" Value="1000"
ValueChanged="slider_ValueChanged" />
<Button Name="btnGetSliderValue2" Width="100"
Click="GetSliderValue_Click">Get Slider 2 Value</Button>
</StackPanel>
</Window>
//File:Window.xaml.vb
Imports System.Windows
Imports System.Windows.Controls
Namespace WpfApplication1
Public Partial Class Window1
Inherits Window
Public Sub New()
InitializeComponent()
End Sub
Private Sub GetSliderValue_Click(sender As Object, e As RoutedEventArgs)
Dim button As Button = TryCast(e.OriginalSource, Button)
Dim message As String = "Unknown slider."
If button Is btnGetSliderValue1 Then
message = "Slider1 value = " + slider1.Value
ElseIf button Is btnGetSliderValue2 Then
message = "Slider2 value = " + slider2.Value
End If
MessageBox.Show(message, Title)
End Sub
Private Sub slider_ValueChanged(sender As Object, e As RoutedPropertyChangedEventArgs(Of Double))
Dim slider As Slider = TryCast(e.OriginalSource, Slider)
If slider IsNot Nothing Then
txtSliderValue.Text = slider.Value.ToString()
End If
End Sub
End Class
End Namespace
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