c# - 从 xml 加载对象，在动态 UI 中编辑值并保存回 xml

Question

我刚刚阅读并将其应用于容器面板上的动态对象、标题的标签、内容的文本框。
但是在这里我在文本框中填写数据时无法保存。
这是我的反序列化 xml 代码:

string Location= Path.Combine("D:\\Data\\Code.xml");
XmlDocument doc = new XmlDocument();
doc.Load(lokasiString);
foreach (XmlNode node in doc.DocumentElement)
{
    string name = node.Attributes[0].InnerXml;
    string value = node.InnerText;

    // create panel
    Panel panel = new Panel();
    panel.Name = "panelImages";
    panel.Size = new Size((int)(this.Width*0.9), 30);
    panel.Dock = DockStyle.Top;
    panel.BorderStyle = BorderStyle.FixedSingle;

    Label l = new Label();
    l.Text = name;
    l.Font = new Font("Serif", 12, FontStyle.Bold);
    l.ForeColor = Color.Black;
    l.Size = new Size((int)(this.Width * 0.2), 30);
    l.Dock = DockStyle.Left;    
    TextBox tb = new TextBox();
    tb.Text = value;
    tb.Font = new Font("Serif", 12, FontStyle.Bold);
    tb.ForeColor = Color.Black;
    tb.Size = new Size((int)(this.Width * 0.9), 30);
    tb.Dock = DockStyle.Left;

    panel.Controls.Add(tb);
    panel.Controls.Add(lt);
    panel.Controls.Add(l);    
    flowLayoutPanel1.Controls.Add(panel);
}

这是我的 XML 代码:

<resources>
    <string name="name">Tap Crush</string>
    <string name="mode">Slow</string>
    <string name="score">12345</string>
</resources>

我没有使用 C# 解析 Xml 的先验知识。

Answer 1

定义模型类并使用数据绑定(bind)来编辑模型，然后您可以将问题分解为以下几部分:

定义一个包含 List<Resource> 的模型类每个 Resource有Title和 Content .

编写一些逻辑以从 xml 加载模型或将模型保存到 xml。

编写一段代码来安排 UI 并设置 UI 控件以使用数据绑定(bind)到您的模式。

然后您可以轻松地从 xml 加载数据，在 UI 中进行编辑并将数据保存到 xml。
型号类
您可以像这样对类进行建模:

public class Model
{
    public List<Resource> Resources { get; set; }
}
public class Resource
{
    public string Title { get; set; }
    public string Content { get; set; }
}

设置 UI
动态 show a collection of controls 有不同的方法以一种形式。在这里，我将展示如何使用 DataGridView 和 TableLayoutPanel 来做到这一点:
数据 GridView

表格布局面板

创建 DataGridView

var dg = new DataGridView();
dg.Dock = DockStyle.Fill;
dg.BorderStyle = BorderStyle.None;
dg.GridColor = Color.Black;
dg.AutoGenerateColumns = true;
dg.EditMode = DataGridViewEditMode.EditOnEnter;
dg.DataSource = model.Resources;
dg.DataBindingComplete += (o, a) =>
{
    dg.RowHeadersVisible = dg.ColumnHeadersVisible = false;
    dg.AllowUserToResizeColumns = false;
    dg.AllowUserToResizeRows = false;
    dg.BackgroundColor = SystemColors.Control;
    dg.Columns[0].ReadOnly = true;
    dg.Columns[0].AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells;
    dg.Columns[0].DefaultCellStyle.ForeColor = Color.Black;
    dg.Columns[0].DefaultCellStyle.BackColor = SystemColors.Control;
    dg.Columns[0].DefaultCellStyle.SelectionForeColor = Color.Black;
    dg.Columns[0].DefaultCellStyle.SelectionBackColor = SystemColors.Control;
    dg.Columns[1].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
};
this.Controls.Add(dg);

创建 TableLayoutPanel

var tlp = new TableLayoutPanel() { ColumnCount = 2, AutoSize = true };
tlp.ColumnStyles.Add(new ColumnStyle(SizeType.AutoSize));
tlp.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100));
tlp.SuspendLayout();
foreach (var resource in model.Resources)
{
    tlp.RowStyles.Add(new RowStyle(SizeType.AutoSize));
    var lbl = new Label() { AutoSize = true, Margin = new Padding(4) };
    lbl.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
    lbl.DataBindings.Add(new Binding(nameof(Label.Text), resource, nameof(Resource.Title)));
    var txt = new TextBox();
    txt.DataBindings.Add(new Binding(nameof(TextBox.Text), resource, nameof(Resource.Content)));
    txt.Dock = DockStyle.Fill;
    tlp.Controls.AddRange(new Control[] { lbl, txt });
}
tlp.ResumeLayout();
this.Controls.Add(tlp);

加载和保存模型
您可以像这样创建一个类:

public class ModelFactory
{
    public Model FromXmlString(string xml)
    {
        return new Model()
        {
            Resources = XElement.Parse(xml).Elements()
                .Select(x => ResourceFromXElement(x)).ToList()
        };
    }
    public string ToXmlString(Model model)
    {
        return new XElement("resources",
            model.Resources.Select(x => ResourceToXElement(x)).ToArray())
            .ToString();
    }
    private Resource ResourceFromXElement(XElement element)
    {
        return new Resource()
        {
            Title = element.Attribute("name").Value,
            Content = element.Value
        };
    }
    private XElement ResourceToXElement(Resource resource)
    {
        return new XElement("string",
            new XAttribute("name", resource.Title),
            resource.Content);
    }
}

然后轻松加载和保存模型:

Model model;
ModelFactory modelFactory  = new ModelFactory();
private void loadButton_Click(object sender, EventArgs e)
{
    var xml = @"
    <resources>
        <string name=""name"">Tap Crush</string>
        <string name=""mode"">Slow</string>
        <string name=""score"">12345</string>
    </resources>";

    //Load model from xml
    model = modelFactory.FromXmlString(xml);

    //Setup UI
}            

private void saveButton_Click(object sender, EventArgs e)
{
    //Save model to xml
    var xml = modelFactory.ToXmlString(model);
    MessageBox.Show(xml);
}