Question

如何在我的主窗口中显示基于窗口1的另一个窗口中的组合框项目选择的图像为了eaxmple我有这个组合框我的Window1

<ComboBox Height="21" HorizontalAlignment="Left" IsEditable="False" IsReadOnly="False" Margin="297,82,0,0" Name="comboBox13" VerticalAlignment="Top" Width="101" >
    <ComboBoxItem Content="ON" />
    <ComboBoxItem Content="OFF" />
</ComboBox>

和我的MainWindow

<Image Height="13" HorizontalAlignment="Left" Margin="284,236,0,0" Name="CB2" Source="/WpfApplication3;component/Images/blankSpacer.gif" />
<Image Height="13" HorizontalAlignment="Left" Margin="284,236,0,0" Name="CB3" Source="/WpfApplication3;component/Images/blankSpacer.gif" />

我想要的是当我选择Combobox项目“ON”时应该看到图像CB2，当我选择Combobox项目“OFF”时应该看到图像CB2 我怎么在Wpf

Answer 1

尝试类似：

CB2.IsVisible = (comboBox12.Text == "ON");
CB3.IsVisible = (comboBox12.Text == "OFF");

在OnChange ComboBox事件中。

Answer 2

假设你知道如何正确绑定，我想的是：

<ComboBox Height="21" HorizontalAlignment="Left" IsEditable="False" IsReadOnly="False" Margin="297,82,0,0" Name="comboBox13" VerticalAlignment="Top" Width="101" SelectedIndex={Binding SelectedIndex, Mode=TwoWay"} >
    <ComboBoxItem Content="ON" />
    <ComboBoxItem Content="OFF" />
</ComboBox>

<Image Height="13" HorizontalAlignment="Left" Margin="284,236,0,0" Name="CB2" Source="/WpfApplication3;component/Images/blankSpacer.gif" Visibility={Binding showcb2, Mode=TwoWay"} />
<Image Height="13" HorizontalAlignment="Left" Margin="284,236,0,0" Name="CB3" Source="/WpfApplication3;component/Images/blankSpacer.gif" Visibility={Binding showcb3, Mode=TwoWay"}  />

然后在viewmodel中：

public SelectedIndex{get;set;}
public Visibility showcb2
{
    get
    {
        if (SelectedIndex == 0)
        {
            return Visibility.Visible;
        }
        return Visibility.Collapsed;
    }           
}


public Visibility showcb3
{
    get
        {
        if (SelectedIndex == 0)
        {
            return Visibility.Visible;
        }
        return Visibility.Collapsed;
    }           
}

Answer 3

你好Jaime Oro我试过你建议但是Ihv Combobox在一个窗口和图像在其他窗口所以它没有采取参考

基于组合框项目选择显示图像

3 个答案: