StatusBar中的WPF ProgressBar不会延伸

Question

WPF和我的新手有以下XAML

<Window x:Class="Wpf.RossKiosk.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Topmost="True" WindowStartupLocation="CenterScreen" WindowState="Maximized" ResizeMode="NoResize" WindowStyle="None">
<DockPanel LastChildFill="True">

    <StatusBar Name="StatusBarMain" Height="30"  DockPanel.Dock="Bottom">
        <StatusBarItem HorizontalContentAlignment="Left">
            <TextBlock x:Name="TextBlockStatus" Margin="5,0,0,0" />
        </StatusBarItem>
        <StatusBarItem HorizontalContentAlignment="Stretch">
            <ProgressBar x:Name="ProgressBarMain" IsIndeterminate="True" Height="15" />
        </StatusBarItem>
        <StatusBarItem HorizontalContentAlignment="Right">
            <TextBlock x:Name="TextBlockInfo" Margin="5,0,0,0" TextAlignment="Right" />
        </StatusBarItem>
    </StatusBar>

    <Grid Name="GridMain">

        <!-- Dynamically Created buttons -->


    </Grid>


</DockPanel>

我希望ProgressBar填充StatusBar的中心部分,但它只显示几个像素的宽度.有任何想法吗？

Answer 1

这是因为默认情况下StatusBar使用a DockPanel布局其子项.请在这里查看我的问题和答案.

Answer 2

您将需要使用网格.DockPanel或StackPanel不适合您.尝试:

    <Grid>
    <StatusBar Name="StatusBarMain" Height="30" HorizontalAlignment="Stretch">
    <StatusBarItem HorizontalContentAlignment="Left">
        <TextBlock x:Name="TextBlockStatus" Margin="5,0,0,0" />
    </StatusBarItem>
    <StatusBarItem HorizontalContentAlignment="Stretch">
        <ProgressBar x:Name="ProgressBarMain" IsIndeterminate="True" Height="15" />
    </StatusBarItem>
    <StatusBarItem HorizontalContentAlignment="Right">
        <TextBlock x:Name="TextBlockInfo" Margin="5,0,0,0" TextAlignment="Right" />
    </StatusBarItem>
   </StatusBar>
    </Grid>