从wpf listview Visual Studio 2017导出数据

时间：2017-12-20 22:21:34

标签： c# wpf visual-studio listview

我正在使用VS 2017将用另一种语言编写的GUI转换为WPF项目（这是新方法）。我已成功创建所有控件，并且后台代码正常工作，但listview除外。应用程序的流程是最终用户填写各种字段，填充列表视图。然后listview将所有内容导出到csv文件。以下是我设置列表视图的方法：

        <ListView x:Name="lstOut" ScrollViewer.HorizontalScrollBarVisibility="Visible" HorizontalAlignment="Left" Height="205" Margin="10,394,0,0" VerticalAlignment="Top" Width="1294">
        <ListView.View>
            <GridView>
                <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Name}"/>
                <GridViewColumn Header="CPU" DisplayMemberBinding="{Binding CPU}"/>
                <GridViewColumn Header="RAM" DisplayMemberBinding="{Binding RAM}"/>
                <GridViewColumn Header="IP Address" DisplayMemberBinding="{Binding IP}"/>
                <GridViewColumn Header="Subnet" DisplayMemberBinding="{Binding Subnet}"/>
                <GridViewColumn Header="Port Group" DisplayMemberBinding="{Binding PortGroup}"/>
                <GridViewColumn Header="Gateway" DisplayMemberBinding="{Binding Gateway}"/>
                <GridViewColumn Header="DNS" DisplayMemberBinding="{Binding DNS}"/>
                <GridViewColumn Header="Description" DisplayMemberBinding="{Binding Description}"/>
                <GridViewColumn Header="Template" DisplayMemberBinding="{Binding Template}"/>
                <GridViewColumn Header="Host" DisplayMemberBinding="{Binding Host}"/>
                <GridViewColumn Header="Site Code" DisplayMemberBinding="{Binding Site}"/>
                <GridViewColumn Header="Folder" DisplayMemberBinding="{Binding Folder}"/>
                <GridViewColumn Header="DataStore" DisplayMemberBinding="{Binding Datastore}"/>
                <GridViewColumn Header="Patch Method" DisplayMemberBinding="{Binding Patch}"/>
                <GridViewColumn Header="HDD1 Size" DisplayMemberBinding="{Binding HDD1Size}"/>
                <GridViewColumn Header="HDD1 Format" DisplayMemberBinding="{Binding HDD1Format}"/>
                <GridViewColumn Header="HDD2 Size" DisplayMemberBinding="{Binding HDD2Size}"/>
                <GridViewColumn Header="HDD2 Format" DisplayMemberBinding="{Binding HDD2Format}"/>
                <GridViewColumn Header="HDD3 Size" DisplayMemberBinding="{Binding HDD3Size}"/>
                <GridViewColumn Header="HDD3 Format" DisplayMemberBinding="{Binding HDD3Format}"/>
                <GridViewColumn Header="HDD4 Size" DisplayMemberBinding="{Binding HDD4Size}"/>
                <GridViewColumn Header="HDD4 Format" DisplayMemberBinding="{Binding HDD4Format}"/>
                <GridViewColumn Header="HDD5 Size" DisplayMemberBinding="{Binding HDD5Size}"/>
                <GridViewColumn Header="HDD5 Format" DisplayMemberBinding="{Binding HDD5Format}"/>
            </GridView>
        </ListView.View>
    </ListView>

然后我在项目上创建了一个类，根据用户输入的数据获取和设置列：

    public class MyItem
{
    public string Name { get; set; }
    public int CPU { get; set; }
    public int RAM { get; set; }
    public string IP { get; set; }
    public string Subnet { get; set; }
    public string PortGroup { get; set; }
    public string Gateway { get; set; }
    public string DNS { get; set; }
    public string Description { get; set; }
    public string Template { get; set; }
    public string Host { get; set; }
    public string Site { get; set; }
    public string Folder { get; set; }
    public string Datastore { get; set; }
    public string Patch { get; set; }
    public int HDD1Size { get; set; }
    public string HDD1Format { get; set; }
    public int HDD2Size { get; set; }
    public string HDD2Format { get; set; }
    public int HDD3Size { get; set; }
    public string HDD3Format { get; set; }
    public int HDD4Size { get; set; }
    public string HDD4Format { get; set; }
    public int HDD5Size { get; set; }
    public string HDD5Format { get; set; }
}

为了测试这一点，在主窗口初始化下我添加了以下内容：

            this.lstOut.Items.Add(new MyItem {
            Name = "SPMASV-KL16SQD1", CPU = 4, RAM = 8192, IP = "10.10.40.79", Subnet = "255.255.252.0", PortGroup = "Server231",
            Gateway = "10.10.40.254", DNS = "10.10.40.69", Description = "Testing", Template = "OAK 2016 Template", Host = "LAX",
            Site = "LAX", Folder = "Servers", Datastore = "OakStorMagic", Patch = "Patch Reboot", HDD1Size = 320, HDD1Format = "Thick",
            HDD2Size = 200, HDD2Format = "Thin", HDD3Size = 60, HDD3Format = "Thick", HDD4Size = 500, HDD4Format = "Thin",
            HDD5Size = 1350, HDD5Format = "EagerZeroedThick"
        });

这会像我期望的那样填充listview。一旦用户单击相应的按钮，导致数据出现问题。我一直在MSDN上查看ListView类页面，以便轻松地读取单个列，并将整个内容导出为数组，但是没有任何运气。我想，我创建它的方式，我可以通过典型访问项目结构。符号（例如lstOut.Name）或将其全部转换为数组并迭代，但我没有想出一个简单的方法。

只是想找到一个正确方向的推动，如果有人有一个简单的方法来完成这个任何建议。任何帮助将不胜感激。

2 个答案:

答案 0 :(得分：0)

您可能希望利用WPF绑定系统。请考虑从您的代码构建的以下简单示例：

XAML：

<Window x:Class="WpfTest.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:wpfTest="clr-namespace:WpfTest"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525"
        DataContext="{Binding RelativeSource={RelativeSource Self}}">


    <Grid Background="DimGray" Name="Grid">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition/>
            <RowDefinition/>
        </Grid.RowDefinitions>
        <ListView x:Name="lstOut" ScrollViewer.HorizontalScrollBarVisibility="Visible" HorizontalAlignment="Left"
                   VerticalAlignment="Top" 
                  ItemsSource="{Binding MyItems}">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Name}" />
                    <GridViewColumn Header="CPU" DisplayMemberBinding="{Binding CPU}" />
                    <GridViewColumn Header="RAM" DisplayMemberBinding="{Binding RAM}" />
                    <GridViewColumn Header="IP Address" DisplayMemberBinding="{Binding IP}" />
                    <GridViewColumn Header="Subnet" DisplayMemberBinding="{Binding Subnet}" />
                    <GridViewColumn Header="Port Group" DisplayMemberBinding="{Binding PortGroup}" />
                    <GridViewColumn Header="Gateway" DisplayMemberBinding="{Binding Gateway}" />
                    <GridViewColumn Header="DNS" DisplayMemberBinding="{Binding DNS}" />
                    <GridViewColumn Header="Description" DisplayMemberBinding="{Binding Description}" />
                    <GridViewColumn Header="Template" DisplayMemberBinding="{Binding Template}" />
                    <GridViewColumn Header="Host" DisplayMemberBinding="{Binding Host}" />
                    <GridViewColumn Header="Site Code" DisplayMemberBinding="{Binding Site}" />
                    <GridViewColumn Header="Folder" DisplayMemberBinding="{Binding Folder}" />
                    <GridViewColumn Header="DataStore" DisplayMemberBinding="{Binding Datastore}" />
                    <GridViewColumn Header="Patch Method" DisplayMemberBinding="{Binding Patch}" />
                    <GridViewColumn Header="HDD1 Size" DisplayMemberBinding="{Binding HDD1Size}" />
                    <GridViewColumn Header="HDD1 Format" DisplayMemberBinding="{Binding HDD1Format}" />
                    <GridViewColumn Header="HDD2 Size" DisplayMemberBinding="{Binding HDD2Size}" />
                    <GridViewColumn Header="HDD2 Format" DisplayMemberBinding="{Binding HDD2Format}" />
                    <GridViewColumn Header="HDD3 Size" DisplayMemberBinding="{Binding HDD3Size}" />
                    <GridViewColumn Header="HDD3 Format" DisplayMemberBinding="{Binding HDD3Format}" />
                    <GridViewColumn Header="HDD4 Size" DisplayMemberBinding="{Binding HDD4Size}" />
                    <GridViewColumn Header="HDD4 Format" DisplayMemberBinding="{Binding HDD4Format}" />
                    <GridViewColumn Header="HDD5 Size" DisplayMemberBinding="{Binding HDD5Size}" />
                    <GridViewColumn Header="HDD5 Format" DisplayMemberBinding="{Binding HDD5Format}" />
                </GridView>
            </ListView.View>
        </ListView>

        <Button Grid.Row="1" Content="Add new" Click="AddNew"/>

        <Button Grid.Row="2" Content="Export" Click="Export"/>
    </Grid>
</Window>

您可以看到窗口的数据上下文已设置为自身，您还将listview的itemsource属性绑定到一个集合，该集合应该是viewmodel中的属性（在这种情况下，因为我们正在设置datacontext到Self，viewmodel是我们的窗口本身）。然后在codebehind：

using System.Collections.ObjectModel;
using System.Windows;

namespace WpfTest
{
    public partial class MainWindow
    {
        public MainWindow()
        {
            InitializeComponent();
            AddNew(null, null);
        }

        public ObservableCollection<MyItem> MyItems { get; set; } = new ObservableCollection<MyItem>();

        private void AddNew(object sender, RoutedEventArgs e)
        {
            MyItems.Add(new MyItem
            {
                Name = "SPMASV-KL16SQD1",
                CPU = 4,
                RAM = 8192,
                IP = "10.10.40.79",
                Subnet = "255.255.252.0",
                PortGroup = "Server231",
                Gateway = "10.10.40.254",
                DNS = "10.10.40.69",
                Description = "Testing",
                Template = "OAK 2016 Template",
                Host = "LAX",
                Site = "LAX",
                Folder = "Servers",
                Datastore = "OakStorMagic",
                Patch = "Patch Reboot",
                HDD1Size = 320,
                HDD1Format = "Thick",
                HDD2Size = 200,
                HDD2Format = "Thin",
                HDD3Size = 60,
                HDD3Format = "Thick",
                HDD4Size = 500,
                HDD4Format = "Thin",
                HDD5Size = 1350,
                HDD5Format = "EagerZeroedThick"
            });
        }

        private void Export(object sender, RoutedEventArgs e)
        {
            foreach (var myItem in MyItems)
            {
                //do whatever you need to export your data...
            }
        }
    }
}

当您单击“导出”按钮时，您可以遍历包含模型实例的集合，该集合由MyItem类表示。

答案 1 :(得分：0)

谢谢，虽然这不是我正在寻找的东西，但却让我朝着正确的方向前进。我能够弄明白我需要做什么。

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