Question

请有人帮忙。下面是我不能编译的XAML代码

<Window x:Class="XAMLCalendar.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:XAMLCalendar"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <StackPanel Orientation = "Horizontal">

            <!-- Create a Calendar that displays dates through 
            Januarary 31, 2015 and has dates that are not selectable. -->

            <Calendar Margin = "20" SelectionMode = "MultipleRange"   
            IsTodayHighlighted = "false"  
            DisplayDate = "1/1/2015" 
            DisplayDateEnd = "1/31/2015" 
            SelectedDatesChanged = "Calendar_SelectedDatesChanged" 
            xmlns:sys = "clr-namespace:System;assembly =mscorlib">

                <Calendar.BlackoutDates>
                    <CalendarDateRange Start = "1/2/2015" End = "1/4/2015"/>
                    <CalendarDateRange Start = "1/9/2015" End = "1/9/2015"/>
                    <CalendarDateRange Start = "1/16/2015" End = "1/16/2015"/>
                    <CalendarDateRange Start = "1/23/2015" End = "1/25/2015"/>
                    <CalendarDateRange Start = "1/30/2015" End = "1/30/2015"/>
                </Calendar.BlackoutDates>

                <Calendar.SelectedDates>
                    <sys:DateTime>1/5/2015</sys:DateTime>
                    <sys:DateTime>1/12/2015</sys:DateTime>
                    <sys:DateTime>1/14/2015</sys:DateTime>
                    <sys:DateTime>1/13/2015</sys:DateTime>
                    <sys:DateTime>1/15/2015</sys:DateTime>
                    <sys:DateTime>1/27/2015</sys:DateTime>
                    <sys:DateTime>4/2/2015</sys:DateTime>
                </Calendar.SelectedDates>

            </Calendar>
        </StackPanel>
    </Grid>
</Window>

下面是

背后的c＃partial class

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace XAMLCalendar
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void Calendar_SelectedDatesChanged(object sender, SelectionChangedEventArgs e)
        {
            var calendar = sender as Calendar;

            // ... See if a date is selected. 

            if (calendar.SelectedDate.HasValue)
            {
                // ... Display SelectedDate in Title. 
                DateTime date = calendar.SelectedDate.Value;
                this.Title = date.ToShortDateString();
            }
        }
    }
}

以下是我收到的错误消息

严重级代码描述项目文件行抑制状态   错误未知构建错误，''clr-namespace：System; assembly = mscorlib'映射URI无效。 6号线位置9.' XAMLCalendar C：\ Users \ mypc \ documents \ visual studio 2017 \ Projects \ XAMLCalendar \ XAMLCalendar \ MainWindow.xaml第6行

严重级代码描述项目文件行抑制状态   错误URI“clr-namespace：System; assembly = mscorlib”不是有效的命名空间标识符。 XAMLCalendar C：\ Users \ mypc \ documents \ visual studio 2017 \ Projects \ XAMLCalendar \ XAMLCalendar \ MainWindow.xaml第20行

严重级代码描述项目文件行抑制状态   错误名称“DateTime”在名称空间“clr-namespace：System; assembly = mscorlib”中不存在。 XAMLCalendar C：\ Users \ mypc \ documents \ visual studio 2017 \ Projects \ XAMLCalendar \ XAMLCalendar \ MainWindow.xaml第31行

严重级代码描述项目文件行抑制状态   错误名称“DateTime”在名称空间“clr-namespace：System; assembly = mscorlib”中不存在。 XAMLCalendar C：\ Users \ mypc \ documents \ visual studio 2017 \ Projects \ XAMLCalendar \ XAMLCalendar \ MainWindow.xaml第32行

........与上面直接相同的错误，直到第37行

有人可以告诉我为什么它不会编译。我已经尝试将mscorlib引用添加到我的项目中，但它不会让我。说“构建系统已经自动引用了这个组件”

在上面的XAML中的Calender元素中，xmlns：sys下面还有一条蠕动线。当我将鼠标悬停在它上面时，intellisense说“URI”clr-namespace：System; assembly = mscorlib“不是有效的命名空间标识符

干杯。我正在使用Microsoft visual studio 2017社区

Answer 1

只需删除名称空间声明中的额外空格。

<Window x:Class="XAMLCalendar.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:XAMLCalendar"
    mc:Ignorable="d"
    Title="MainWindow" Height="350" Width="525">
<Grid>
    <StackPanel Orientation = "Horizontal">

        <!-- Create a Calendar that displays dates through 
        Januarary 31, 2015 and has dates that are not selectable. -->

        <Calendar Margin = "20" SelectionMode = "MultipleRange"   
        IsTodayHighlighted = "false"  
        DisplayDate = "1/1/2015" 
        DisplayDateEnd = "1/31/2015" 
        SelectedDatesChanged = "Calendar_SelectedDatesChanged" 
        xmlns:sys = "clr-namespace:System;assembly=mscorlib">

            <Calendar.BlackoutDates>
                <CalendarDateRange Start = "1/2/2015" End = "1/4/2015"/>
                <CalendarDateRange Start = "1/9/2015" End = "1/9/2015"/>
                <CalendarDateRange Start = "1/16/2015" End = "1/16/2015"/>
                <CalendarDateRange Start = "1/23/2015" End = "1/25/2015"/>
                <CalendarDateRange Start = "1/30/2015" End = "1/30/2015"/>
            </Calendar.BlackoutDates>

            <Calendar.SelectedDates>
                <sys:DateTime>1/5/2015</sys:DateTime>
                <sys:DateTime>1/12/2015</sys:DateTime>
                <sys:DateTime>1/14/2015</sys:DateTime>
                <sys:DateTime>1/13/2015</sys:DateTime>
                <sys:DateTime>1/15/2015</sys:DateTime>
                <sys:DateTime>1/27/2015</sys:DateTime>
                <sys:DateTime>4/2/2015</sys:DateTime>
            </Calendar.SelectedDates>

        </Calendar>
    </StackPanel>
</Grid>
</Window>

XAML代码无法编译

1 个答案: