C# wpfdatagrid到XML

我需要一个真正的帮助。我试图在wpf中编写一个用户可以编辑的datagrid。我已经完成了大部分工作，但我一直坚持将datagrid保存到xml并将其从xml加载到wtf

我将在我的代码上留下一些空白点，上面有“帮助注释”和一些关于我成功完成的操作的注释。考虑到我之前对c#和wpf一无所知，我对自己的成就感到非常自豪。遗憾的是，我也是xtml新手，对于我的具体问题没有好的教程材料

除“保存”和“加载”按钮外，所有按钮都可以工作

这是XAML文件

<Window x:Class="WpfAppLunes.MainWindow" <!-- This changes according to project name -->
    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:WpfAppLunes" <!-- This changes according to project name -->
    mc:Ignorable="d" FontSize="18"
    Title="WPF_Lunes" Height="500" Width="800">



<Border Padding="10">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>

        <Grid.RowDefinitions>
            <RowDefinition Height="auto"/>
            <RowDefinition Height="auto"/>
            <RowDefinition Height="auto"/>
            <RowDefinition Height="auto"/>
            <RowDefinition Height="auto"/>
            <RowDefinition Height="auto"/>
            <RowDefinition Height="auto"/>
            <RowDefinition Height="auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <!-- Row 0 -->
        <!-- Title of the Application -->
        <TextBlock x:Name="BigHeader" Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="3" TextWrapping="Wrap" Margin="1" FontSize="36" FontWeight="Bold" Text="Monthly Transactions" />

        <DataGrid Grid.Row="1"  AutoGenerateColumns="False" CanUserAddRows="False" x:Name="dgContent">
            <DataGrid.Columns>
                <DataGridTextColumn Header="Transaction Name" Binding="{Binding transactionName}"/>
                <DataGridTextColumn Header="Amount '$'" Binding="{Binding Amount}"/>
            </DataGrid.Columns>
        </DataGrid>
        <!--
        <ListView Margin="10" Name="lvUsers" Grid.Row="1" Grid.ColumnSpan="2">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Transaction Name"  DisplayMemberBinding="{Binding transactionName}" />
                    <GridViewColumn Header="Amount '$'" DisplayMemberBinding="{Binding Amount}" />
                </GridView>
            </ListView.View>
        </ListView>
        -->

        <TextBlock x:Name="TransactionHeader" Grid.Row="3" Grid.Column="0" TextWrapping="Wrap" Margin="1" Text="Transaction Name" />
        <TextBlock x:Name="AmountHeader" Grid.Row="3" Grid.Column="1" TextWrapping="Wrap" Margin="1" Text="Amount" />
        <!-- Row 3 -->
        <!-- Text Boxes for the user to declare next item and its price -->
        <TextBox x:Name="newTransaction" Grid.Row="4" Grid.Column="0" Padding="5" Margin="5"/>
        <TextBox x:Name="newAmount" Grid.Row="4" Grid.Column="1" Padding="5" Margin="5" PreviewTextInput="newAmount_PreviewTextInput"/>
        <ComboBox Grid.Row="4" Grid.Column="2" Name="Language" Width="170" Margin="1" VerticalContentAlignment="Center" VerticalAlignment="Top" MaxDropDownHeight="auto"></ComboBox>
        <!-- <TextBox Text="{Binding Path=value, StringFormat={}{0:#.##}}" /> -->
        
        <!-- Row 4 -->
        <!-- Buttons to Add to the list or delete from the list -->
        <Button x:Name="addButton" Click="addButton_Click" Grid.Row="5" Grid.Column="0" Margin="10" Content="Add" />
        <Button x:Name="deleteButton" Click="deleteButton_Click" Grid.Row="5" Grid.Column="1" Margin="10" Content="Delete" />
        <Button x:Name="changeButton" Content="Dil Değiştir" Margin="10" Grid.Column="3" Grid.Row="5" Click="changeButton_Click"/>
        <!-- Row 5 -->
        <!-- Save or Load the file -->
        <Button x:Name="saveButton" Click="saveButton_Click" Grid.Row="6" Grid.Column="0" Margin="10" Content="Save" />
        <Button x:Name="loadButton" Click="loadButton_Click" Grid.Row="6" Grid.Column="1" Margin="10" Content="Load" />
   
        <!--Row 7 test for localization -->
        
    </Grid>
</Border>

mc:Ignorable=“d”FontSize=“18”
Title=“WPF_Lunes”Height=“500”Width=“800”>

---

这是c#文件。

使用系统；
使用System.Collections.Generic；
使用System.Collections.ObjectModel；
使用系统组件模型；
使用系统数据；
使用System.Data.SqlClient；
使用系统图；
使用System.Linq；
使用系统文本；
使用System.Text.RegularExpressions；
使用System.Threading.Tasks；
使用System.Windows；
使用System.Windows.Controls；
使用System.Windows.Data；
使用System.Windows.Documents；
使用System.Windows.Input；
使用System.Windows.Media；
使用System.Windows.Media.Imaging；
使用System.Windows.Navigation；
使用System.Windows.Shapes；
使用Finisar.SQLite；
使用System.Xml；
使用System.Xml.Linq；
使用System.IO；
//我试着用了很多东西，却懒得把它们拿走。如果您添加了其他内容，请发表评论
//请在它旁边。
名称空间WpfAppLunes
{
/// 
///MainWindow.xaml的交互逻辑
/// 
公共部分类主窗口：窗口
{
//我在这里初始化我的数据网格。
可观察到的采集对象；
公共主窗口（）
{
初始化组件（）；
myObjects=新的可观察集合（）
{
新交易（）{transactionName=“Salary”，Amount=“$1670.00”}，
新交易（）{transactionName=“Car”，Amount=“-$60.00”}，
新交易（）{transactionName=“Clothing”，Amount=“-$320.00”}，
新交易（）{transactionName=“Food”，Amount=“-$85.00”}，
新交易（）{transactionName=“Leisure”，Amount=“-$35.00”}，
新交易（）{transactionName=“Living”，Amount=“-$560.00”}
};
this.dgContent.ItemsSource=myObject；
BindLanguage（）；
}
//这是我的组合框，用户可以从语言设置中进行选择
#区域绑定语言从和到组合框
私有语言（）
{
DataTable dtCurrency=新DataTable（）；
//在DataTable中添加显示列
dtCurrency.Columns.Add（“文本”）；
//在DataTable中添加值列
dtCurrency.Columns.Add（“值”）；
dtCurrency.Rows.Add（“EN”，0）；
dtCurrency.Rows.Add（“TR”，1）；
Language.ItemsSource=dtCurrency.DefaultView；
Language.DisplayMemberPath=“Text”；
Language.SelectedValuePath=“Value”；
Language.SelectedIndex=0；
}
#端区
//它将事务名称和值添加到数据网格。它还格式化数据网格金额视图。
//添加按钮属性
私有void addButton_单击（对象发送方，路由目标）
{
双数量格式；
amountFormat=double.Parse（this.newAmount.Text）；
如果（数量格式<0）
{
amountFormat*=-1；
transaction myObject=new transaction（）{transactionName=this.newTransaction.Text，Amount=“-$”+amountFormat.ToString（“N2”）}；
myObjects.Add（myObject）；
}
其他的
{
事务myObject=new transaction（）{transactionName=this.newTransaction.Text，Amount=“$”+amountFormat.ToString（“N2”）}；
myObjects.Add（myObject）；
}
}
//它将从数据网格中删除选定的值。
//删除按钮属性
私有void delete按钮\单击（对象发送方，路由目标）
{
如果（dgContent.SelectedIndex>=0）
{
//从集合源中删除selectedItem
所选事务=dgContent.SelectedItem作为事务；
myObjects.Remove（选定）；
}
}
//保存按钮属性
私有无效保存按钮\u单击（对象发送方，路由目标）
{
/*帮助帮助帮助帮助*/
}
//加载按钮属性
//我认为在实际从xml加载文件之前清除datagrid是个好主意
//我认为创建一个新按钮来清除datagrid是个好主意。我稍后会添加它。
私有无效加载按钮\u单击（对象发送者，路由目标e）
{
/*帮助帮助帮助帮助帮助帮助帮助*/
myObjects.Clear（）；
}
//它获取文本框的值。
公共类事务
{
公共字符串transactionName{get；set；}
公共字符串金额{get；set；}
}
//确保用户只能输入+/-十进制值。
私人作废新金额
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
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;
using Finisar.SQLite;
using System.Xml;
using System.Xml.Linq;
using System.IO;
//I tried to use a lot of stuffs and did not bother to remove them. If you add another, put a comment
//next to it please.
namespace WpfAppLunes
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
//I initialize my datagrid here.
        ObservableCollection<transaction> myObjects;

        public MainWindow()
        {
            InitializeComponent();

            myObjects = new ObservableCollection<transaction>()
            {
                new transaction(){transactionName = "Salary", Amount = "$1,670.00"},
                new transaction(){transactionName = "Car", Amount = "-$60.00"},
                new transaction(){transactionName = "Clothing", Amount = "-$320.00"},
                new transaction(){transactionName = "Food", Amount = "-$85.00"},
                new transaction(){transactionName = "Leisure", Amount = "-$35.00"},
                new transaction(){transactionName = "Living", Amount = "-$560.00"}
            };

            this.dgContent.ItemsSource = myObjects;

            BindLanguage();

            
        }


//This is my combobox that lets the user choose from language settings
        #region Bind Language From and To Combobox
        private void BindLanguage()
        {
            DataTable dtCurrency = new DataTable();

            //Add display column in DataTable
            dtCurrency.Columns.Add("Text");

            //Add value column in DataTable
            dtCurrency.Columns.Add("Value");

            dtCurrency.Rows.Add("EN", 0);
            dtCurrency.Rows.Add("TR", 1);

            Language.ItemsSource = dtCurrency.DefaultView;
            Language.DisplayMemberPath = "Text";
            Language.SelectedValuePath = "Value";
            Language.SelectedIndex = 0;
        }
        #endregion

//It adds the transaction name and value to the data grid. It also formats the datagrid amount view.
        //Add button properties
        private void addButton_Click(object sender, RoutedEventArgs e)
        {
            double amountFormat;

            amountFormat = double.Parse(this.newAmount.Text);
            if (amountFormat < 0)
            {
                amountFormat *= -1;
                transaction myObject = new transaction() { transactionName = this.newTransaction.Text, Amount = "-$" + amountFormat.ToString("N2") };
                myObjects.Add(myObject);
            }
            else
            {
                transaction myObject = new transaction() { transactionName = this.newTransaction.Text, Amount = "$" + amountFormat.ToString("N2") };
                myObjects.Add(myObject);
            }
        }

//It deletes the selected value from the data grid.
        //Delete button properties
        private void deleteButton_Click(object sender, RoutedEventArgs e)
        {
            if (dgContent.SelectedIndex >= 0)
            {
                //remove the selectedItem from the collection source
                transaction selected = dgContent.SelectedItem as transaction;
                myObjects.Remove(selected);
            }
        }

        
        //Save button properties
        private void saveButton_Click(object sender, RoutedEventArgs e)
        {
/* HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP */            
        }

        //Load button properties
//I thought it would be good idea to clear the datagrid before I actually load the file from xml
//I think it will be good idea to create a new button just to clear the datagrid. I will add it later.
        private void loadButton_Click(object sender, RoutedEventArgs e)
        {
/* HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP */
            myObjects.Clear();

        }

        //It gets the textbox values.
        public class transaction
        {
            public string transactionName { get; set; }
            public string Amount { get; set; }
        }

        //Makes sure that user can input only the +/- decimal values.
        private void newAmount_PreviewTextInput(object sender, TextCompositionEventArgs e)
        {
            //Because this line and next line comes before regex, they can be inputted.
            //It will allow the user to add negative value
            if (e.Text.Equals("-") && newAmount.Text.Length.Equals(0))
                return;
            //It will allow the user input 1 decimal point.
            //User can input more than 2 numbers after the decimal point to my displeasure
            //I did manage to get a workaround on this though. When the amount is added to the datagrid
            //it will show in the way I want it to show.
            if (e.Text.Equals(".") && !newAmount.Text.Contains("."))
                return;

            //This makes sure that user cannot enter anything other than number.
            Regex regex = new Regex("[^0-9]+");
            e.Handled = regex.IsMatch(e.Text);
            
        }
//It is my localization method.       
//This is my version of localization. I could not get xaml change language because it would not recognize 
//loc type variables for some reason. Maybe I missed some library. :D 
//I would love it if someone told me the possible problem, but it is my last concern.
        private void changeButton_Click(object sender, RoutedEventArgs e)
        {
            if (Language.Text == "EN" && changeButton.Content.ToString() == "Change Language")
            {
                changeButton.Content = "Dil Değiştir";
                addButton.Content = "Add";
                deleteButton.Content = "Delete";
                saveButton.Content = "Save";
                loadButton.Content = "Load";
                TransactionHeader.Text = "Transaction Name";
                AmountHeader.Text = "Amount";
                dgContent.Columns[0].Header = "Transaction Name";
                dgContent.Columns[1].Header = "Amount '$'";
                BigHeader.Text = "Monthly Transactions";
            }
            if(Language.Text == "TR" && changeButton.Content.ToString() == "Dil Değiştir")
            {
                changeButton.Content = "Change Language";
                addButton.Content = "Ekle";
                deleteButton.Content = "Sil";
                saveButton.Content = "Kaydet";
                loadButton.Content = "Yükle";
                TransactionHeader.Text = "İşlem";
                AmountHeader.Text = "İşlem Miktarı";
                dgContent.Columns[0].Header = "İşlem";
                dgContent.Columns[1].Header = "İşlem Miktarı '$'";
                BigHeader.Text = "Aylık Gelir/Giderler";
            }
        }
       
    }
}

    //Save button properties
    private void saveButton_Click(object sender, RoutedEventArgs e)
    {
        var fileName = GetSaveFilePath();
        var serializer = new XmlSerializer(typeof(List<transaction>));
        using (TextWriter stream = new StreamWriter(fileName))
        {
            serializer.Serialize(stream, myObjects.ToList());
            stream.Flush();
        }
    }


    /// <summary>
    /// Where you want to save data
    /// </summary>
    private string GetSaveFilePath()
    {
        var desktop = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
        var fileName = System.IO.Path.Combine(desktop, "myData.xml");
        return fileName;
    }

    //Load button properties
    private void loadButton_Click(object sender, RoutedEventArgs e)
    {
        myObjects.Clear();

        var fileName = GetSaveFilePath();
        var serializer = new XmlSerializer(typeof(List<transaction>));
        using (TextReader stream = new StreamReader(fileName))
        {
            var list = (List<transaction>)serializer.Deserialize(stream);
            foreach (var item in list)
            {
                myObjects.Add(item);
            }
        }
    }