从数据库数据集和生成的XSD类C＃创建XML

Question

Good day, I need some help, I have a dataset which I populate from my db, I also have a xsd Schema file I need to create an xml file using the data from the db and the xsd file.

Can anyone please help me.

All the best

Answer 1

You can cross reference the database names with the datatable names in you Select Query by using "as" : "Select abc as xyz from table1". "abc" is the database name and xyz is the datatable name which will be the xml tag name.

Here is an example of writing a DataSet

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.IO;
using System.Data;

namespace ConsoleApplication34
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.xml";
        static void Main(string[] args)
        {
            DataTable dt = new DataTable("MyTable");

            dt.Columns.Add("Name", typeof(string));
            dt.Columns.Add("Id", typeof(int));

            dt.Rows.Add(new object[] { "John", 1});
            dt.Rows.Add(new object[] { "Mary", 2});
            dt.Rows.Add(new object[] { "Dick", 3});
            dt.Rows.Add(new object[] { "Harry", 4});
            dt.Rows.Add(new object[] { "Jane", 5});

            DataSet ds = new DataSet("MySet");
            ds.Tables.Add(dt);

            ds.WriteXml(FILENAME, XmlWriteMode.WriteSchema);
            // or
            //ds.WriteXml(FILENAME);

        }

    }


}