Question

我这里有这个对象：

public class ServiceConfig
{
    public List<DatabaseDescriptor> Databases { get; set; }  
}

public class DatabaseDescriptor
{
    [XmlElement("Name")]
    public string Name { get; set; }
    public List<Table> Tables { get; set; }        
}

public class Table
{  
    [XmlElement("ID")]
    public string ID { get; set; }
    [XmlElement("TableName")]
    public string TableName { get; set; }
}

我有

public xml.ServiceConfig xmlData { get; set; }

如何更新名称==测试的xmlData DatabaseDescriptors，即我如何更新它？

SERIALIZING BACK TO XML

XmlSerializer serializer = new XmlSerializer(typeof(xml.ServiceConfig));
            using (TextWriter writer = new StreamWriter(@"C:\Xml.xml"))
            {
                serializer.Serialize(writer, ServiceConfig);
            }

Answer 1

尝试：

DatabaseDescriptor updateObject = xmlData.Databases.FirstOrDefault(_d => _d.Name.Equals("Test"));
if(updateObject != null)
{
    // update what you want to update...
}

Answer 2

如果名称是唯一的

using System.Linq;


DatabaseDescriptor db = xmlData.Databases.SingleOrDefault(db => db.name == "test");
if (db != null)
{
                //Update db instance
}

否则

    var dbs = xmlData.Databases.Where(db => db.name == "test");

    foreach (DatabaseDescriptor element in dbs)
    {
        // Update elements
    }

如果要在xml Databases属性中序列化/反序列化，则必须使用[XmlArray]进行装饰，

你看到Deserialize XML does not populate array

根据条件更新c＃中的对象

2 个答案: