按钮单击UWP时，使用选中的组合框项目导航到新页面 [英] Navigating to new page with selcted combobox item when button is click UWP

问题描述

大家好，我希望用户选择组合框中的项目，当他们按下按钮时，他们将被重定向到特定页面。我怎样才能做到这一点？

hi everyone, I want the user to select an item in a combobox and when they press a button, that they will be redirected to the specific page. How can I achieve this?

<pre><Grid>
        <ComboBox x:Name="Campus_Selector" HorizontalAlignment="Center" Margin="0,414,0,0" VerticalAlignment="Top" PlaceholderText="Select a Campus " Width="233">
            <ComboBoxItem Content="Auckland Park" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100" />
            <ComboBoxItem Content="Bloemfontein" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
            <ComboBoxItem Content="Boksburg" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
            <ComboBoxItem Content="Cape Town" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
            <ComboBoxItem Content="Durban" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
            <ComboBoxItem Content="Nelspruit" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
            <ComboBoxItem Content="Polokwane" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
            <ComboBoxItem Content="Port Elizabeth" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
            <ComboBoxItem Content="Potchefstroom" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
            <ComboBoxItem Content="Pretoria" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
            <ComboBoxItem Content="Roodepoort" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
            <ComboBoxItem Content="Sandton" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
            <ComboBoxItem Content="Stellenbosch" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
            <ComboBoxItem Content="Vereeniging" HorizontalAlignment="Center" Height="100" Margin="0,0,0,0" VerticalAlignment="Center" Width="100"/>
        </ComboBox>
        <Button x:Name="Navtocapus" Content="Navigate to selected Campus" HorizontalAlignment="Left" Margin="100,504,0,0" VerticalAlignment="Top" Click="Navtocapus_Click"/>

    </Grid>

注意这是UWP



我尝试过：



我尝试使用if语句，然后我尝试了所有的Campus_Selector.Selected（语句），如果这样做，那么

Note this is for UWP

What I have tried:

I tried using an if statement, and I tried all the Campus_Selector.Selected(statements) if that makes sence

推荐答案

ComboBox继承自Selector。



使用SelectedItem属性引用按钮处理程序中当前选定的项目：



Selector.SelectedItem属性（Windows.UI.Xaml.Controls.Primitives） - UWP app developer | Microsoft Docs [ ^ ]



您需要确保物品实际被选中;否则你会崩溃。

ComboBox inherits from Selector.

Use the SelectedItem property to reference the currently selected item in the button handler:

Selector.SelectedItem Property (Windows.UI.Xaml.Controls.Primitives) - UWP app developer | Microsoft Docs[^]

You need to insure an item is actually selected; else you will crash.

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