XmlSerializer将C＃对象转换为xml字符串问题

Question

I have the following code but i not want to show the node called "booksList". i need your help about the solution i delete the XmlArrayItem tag but not work properly.

i took the example from the following post :

You cannot serialize class from your question using standard serialization tools so that it will have entries on the same level as node. When class saved with standard serialization tools list of your nodes will always be nested into separate array node that will be on the same level as node. Same concerns records array field on book class. To generate XML output that you want to - with nodes on same level as node - you will have to implement IXmlSerializable interface in your books class for custom serialization. To see examples of IXmlSerializable implementation visit these links: StackOverflow answer, CodeProject article. Another solution will be - as stated user Alexandr in comment to my answer - to inherit your books class from List type and to have on your book class field records of class type that is inherited from List type.

[XmlRoot("books")]
public class books
{
    [XmlElement("bookNum")]
    public int bookNum { get; set; }

    [XmlRoot("book")]
    public class book
    {
        [XmlElement("name")]
        public string name { get; set; }

        [XmlRoot("record")]
        public class record
        {
            [XmlElement("borrowDate")]
            public string borrowDate { get; set; }

            [XmlElement("returnDate")]
            public string returnDate { get; set; }
        }

        [XmlArray("borrowRecords")]
        [XmlArrayItem("record")]
        public record[] records { get; set; }
    }

    [XmlArray("booksList")]
    [XmlArrayItem("book")]
    public book[] books { get; set; }
}

<books>
    <bookNum>2</bookNum>
    <booksList>
        <book>
            <name>Book 1</name>
            <borrowRecords>
                <record>
                    <borrowDate>2013-1-3</borrowDate>
                    <returnDate>2013-1-5</returnDate>
                </record>
                <record>            
                    <borrowDate>2013-2-3</borrowDate>
                    <returnDate>2013-4-5</returnDate>
                </record>
            </borrowRecords>
        </book>
        <book>
            <name>Book 2</name>
            <borrowRecords>
                <record>
                    <borrowDate>2013-1-3</borrowDate>
                    <returnDate>2013-1-5</returnDate>
                </record>
                <record>            
                    <borrowDate>2013-2-3</borrowDate>
                    <returnDate>2013-4-5</returnDate>
                </record>
            </borrowRecords>
        </book>
    </booksList>
</books>

if i use the tag "XmlIgnore" like Ed Plunkett says work but i delete all the data inside the array, i want the data but not the "booksList" node.

like this:

<books>
    <bookNum>2</bookNum>
    <book>
        <name>Book 1</name>
        <borrowRecords>
            <record>
                <borrowDate>2013-1-3</borrowDate>
                <returnDate>2013-1-5</returnDate>
            </record>
            <record>
                <borrowDate>2013-2-3</borrowDate>
                <returnDate>2013-4-5</returnDate>
            </record>
        </borrowRecords>
    </book>
    <book>
        <name>Book 2</name>
        <borrowRecords>
            <record>
                <borrowDate>2013-1-3</borrowDate>
                <returnDate>2013-1-5</returnDate>
            </record>
            <record>
                <borrowDate>2013-2-3</borrowDate>
                <returnDate>2013-4-5</returnDate>
            </record>
        </borrowRecords>
    </book>
</books>

i use this example because the original data i can't show, but is the same problem i need to delete the "booksList" because is the standar i need to use.

Answer 1

i found the solution, just change or add the [XmlArrayItem("book")] for [XmlElement("book")] in the cs class like this:

[XmlRoot("books")]
public class books
{
    [XmlElement("bookNum")]
    public int bookNum { get; set; }

    [XmlRoot("book")]
    public class book
    {
        [XmlElement("name")]
        public string name { get; set; }

        [XmlRoot("record")]
        public class record
        {
            [XmlElement("borrowDate")]
            public string borrowDate { get; set; }

            [XmlElement("returnDate")]
            public string returnDate { get; set; }
        }

        [XmlElement("record")]
        public record[] records { get; set; }
    }

    [XmlElement("book")]
    public book[] books { get; set; }
}

and this gets the following xml file:

<books>
    <bookNum>2</bookNum>
    <book>
        <name>Book 1</name>
        <borrowRecords>
            <record>
                <borrowDate>2013-1-3</borrowDate>
                <returnDate>2013-1-5</returnDate>
            </record>
            <record>
                <borrowDate>2013-2-3</borrowDate>
                <returnDate>2013-4-5</returnDate>
            </record>
        </borrowRecords>
    </book>
    <book>
        <name>Book 2</name>
        <borrowRecords>
            <record>
                <borrowDate>2013-1-3</borrowDate>
                <returnDate>2013-1-5</returnDate>
            </record>
            <record>
                <borrowDate>2013-2-3</borrowDate>
                <returnDate>2013-4-5</returnDate>
            </record>
        </borrowRecords>
    </book>
</books>

without the node ""