父子窗体嵌入式

嵌入式窗体

简单布局：

 <Grid Margin="6,0,-6.4,0">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="150"></ColumnDefinition>
            <ColumnDefinition></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition></RowDefinition>
            <RowDefinition></RowDefinition>
            <RowDefinition></RowDefinition>
            <RowDefinition></RowDefinition>
        </Grid.RowDefinitions>
        <Button Name="btnFirst" Margin="20,30,20,30">页面一</Button>
        <TextBox Name="text1" Grid.Row="1" Grid.Column="0" Margin="20"> </TextBox>
        <Button Name="btnSecond" Grid.Column="0" Grid.Row="2" Margin="20">页面2</Button>
        <Button  Name="btnThird" Grid.Column="0" Grid.Row="3">提取嵌入窗口的数据</Button>
          <!--非常重点的内容，关系内容嵌套-->
          <Frame  Name="frame" Grid.Column="1" Grid.RowSpan="4" NavigationUIVisibility="Hidden"></Frame>
        <Frame  Name="frame2" Grid.Column="1" Grid.RowSpan="4" NavigationUIVisibility="Hidden"></Frame>
    </Grid>

嵌入重点：
Frame
嵌入页面内容

 <Grid>
        <TabControl>
            <TabItem Header="项目一">
                <TabItem.Content>
                    <Grid>
                        <TextBox x:Name="txt1"></TextBox>
                    </Grid>
                </TabItem.Content>
            </TabItem>
            <TabItem Header="项目二">
                <TabItem.Content>
                    <Grid>
                        <Button Name="btn5" FontSize="30">按钮</Button>
                    </Grid>
                </TabItem.Content>
            </TabItem>
        </TabControl>
    </Grid>

按键生成部分

    private void btnFirst_Click(object sender, RoutedEventArgs e)
        {
            this.frame.Content = new Page1();

        }

子窗体获取主窗体值

如何在子窗体中获取主窗体的值，使用了下面方法

    private void btn5_Click(object sender, RoutedEventArgs e)
        {
                //获取主窗口内容
                MainWindow mainWindow = Application.Current.MainWindow as MainWindow;
                string fatherInformation = mainWindow.text1.Text;
                MessageBox.Show("显式内容是：" + fatherInformation);
        }

切换页面数据保留还是消失

依旧采用单例模式进行创建