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我是使用 C# 的新手，现在正在尝试构建一个简单的 Windows 商店应用程序。但是我不知道为什么ArrayList找不到。在下面的代码中，我尝试ArrayList在Button_Click_1()函数中使用。我收到的错误是“ The type or namespace name 'ArrayList' could not be found”，但我使用System.Collections的是其中ArrayList包含的错误。

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// The Basic Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234237

namespace Statistics
{
    /// <summary>
    /// A basic page that provides characteristics common to most applications.
    /// </summary>
    public sealed partial class MainPage : Statistics.Common.LayoutAwarePage
    {
        public MainPage()
        {
            this.InitializeComponent();
        }

        /// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="navigationParameter">The parameter value passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested.
        /// </param>
        /// <param name="pageState">A dictionary of state preserved by this page during an earlier
        /// session.  This will be null the first time a page is visited.</param>
        protected override void LoadState(Object navigationParameter, Dictionary<String, Object> pageState)
        {
        }

        /// <summary>
        /// Preserves state associated with this page in case the application is suspended or the
        /// page is discarded from the navigation cache.  Values must conform to the serialization
        /// requirements of <see cref="SuspensionManager.SessionState"/>.
        /// </summary>
        /// <param name="pageState">An empty dictionary to be populated with serializable state.</param>
        protected override void SaveState(Dictionary<String, Object> pageState)
        {
        }

        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            ArrayList data = new ArrayList();
        }

        private void TextBox_TextChanged_1(object sender, TextChangedEventArgs e)
        {

        }
    }
}
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2 回答 2

4

您的目标是 windows 商店：这意味着您正在使用 netcore 框架。这不是常规的 .NET 框架

  • 有一些独特的东西
  • 它缺少常规框架中的一些东西
  • 有些东西有不同的特点

ArrayList不包括在内。请改用 List-of-T。 List<object >就足够了，但更具体的类型会更好。

于 2013-05-30T21:21:29.923 回答
1

非泛型集合在 winRT（Windows 商店）应用程序中不可用。

使用通用列表类型：

List<T>
于 2013-05-30T21:24:55.487 回答