Question

我当前正在尝试将当前页面标题显示为窗口标题。我的MainWindow.xaml：

<Window x:Class="Your_choice_1.MainWindow" 
        namespace:"Your_choice_1" 
        mc:Ignorable="d" 
        Title="{Binding Path=Content.Title, ElementName=_mainFrame}" 
        Height="450" Width="800" 
        WindowState="Maximized">
    <Grid>
        <DockPanel>
            <Frame x:Name="_mainFrame" Source="Index.xaml" Margin="0,-8,0,8" />
        </DockPanel>
    </Grid>
</Window>

我知道遗漏了一些位，因为出于某些原因，编辑器不允许我发布它-但是重要的是标题绑定仍然如此。这是错误的做法吗？作为标题，我得到项目名称和index.xaml，而不是页面标题本身。

编辑：我想要达到的目的是，每当新页面显示在框架中时，窗口标题（MainWindow.xaml的标题）就会更新。窗口标题应与页面标题相同。 In this article 提出了我当前使用的解决方案，但未按预期工作，显示Projectname / URI-to-page，而不是页面标题作为窗口标题。例：窗口标题应该是“您的选择-任务”（因为它是页面标题）-实际上，窗口标题是your_choice_1; compontent / Index.xaml

Answer 1

此代码对我来说运行良好：（我看不到您的代码有错误... ???）

您的index.xaml是Page类型还是具有Title属性？

> Connecting database...
Exception in thread "main" java.lang.IllegalStateException: Cannot connect the database!
    at election.ElectionApp.main(ElectionApp.java:251)
Caused by: java.sql.SQLException: null,  message from server: "Host 'MyComputer.local' is not allowed to connect to this MySQL server"
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:964)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:897)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:886)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1040)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2191)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly    (ConnectionImpl.java:2222)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2017)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:779)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:389)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at Election.ElectionApp.main(ElectionApp.java:248)

Index.xaml

<Window x:Class="WpfApp1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApp1"
        mc:Ignorable="d"
        Title="{Binding Path=Content.Title, ElementName=MainFrame}" Height="450" Width="800">
    <Grid>
        <Frame x:Name="MainFrame" Source="Index.xaml">

        </Frame>
    </Grid>
</Window>

将窗口标题设置为页面标题

1 个答案: