如何将数据从 Windows 窗体保存到 XML 文件？

我非常确定我必须首先创建 XML 文件的某种模型，对吧？

任何帮助将不胜感激。

一种简单的方法是创建 .NET 类，将数据放入其中然后使用Xml序列化器 http://msdn.microsoft.com/en-us/library/system.xml.serialization.xmlserializer.aspx将数据序列化到文件，然后反序列化回类的实例并重新填充表单。

举个例子，如果您有一个包含客户数据的表单。为了简短起见，我们只有名字和姓氏。您可以创建一个类来保存数据。请记住，这只是一个简单的示例，您可以像这样存储数组和各种复杂/嵌套数据。

public class CustomerData
{
  public string FirstName;
  public string LastName;
}

因此，将数据保存为 XML，您的代码将如下所示。

// Create an instance of the CustomerData class and populate
// it with the data from the form.
CustomerData customer = new CustomerData();
customer.FirstName = txtFirstName.Text;
customer.LastName = txtLastName.Text;

// Create and XmlSerializer to serialize the data to a file
XmlSerializer xs = new XmlSerializer(typeof(CustomerData));
using (FileStream fs = new FileStream("Data.xml", FileMode.Create))
{
  xs.Serialize(fs, customer);
}

加载数据将类似于以下内容

CustomerData customer;
XmlSerializer xs = new XmlSerializer(typeof(CustomerData));
using (FileStream fs = new FileStream("Data.xml", FileMode.Open))
{
  // This will read the XML from the file and create the new instance
  // of CustomerData
  customer = xs.Deserialize(fs) as CustomerData;
}

// If the customer data was successfully deserialized we can transfer
// the data from the instance to the form.
if (customer != null)
{
  txtFirstName.Text = customer.FirstName;
  txtLastName.Text = customer.LastName;
}