C#

using System;
using System.IO;
using System.Xml;
using System.Xml.Schema;
namespace Moonlite.Controls.Xsd {
  public static class XsdReader {
    public static XsdNodeCollection Read(Stream stream, Stream schema) {
      XsdNodeCollection nodes = new XsdNodeCollection();
      XmlReaderSettings settings = new XmlReaderSettings();
      settings.ValidationType = ValidationType.Schema;
      XmlSchemaSet schemas = new XmlSchemaSet();
      settings.Schemas = schemas;
      settings.IgnoreWhitespace = true;
      settings.IgnoreComments = true;
      schemas.Add(null, XmlReader.Create(schema));
      XmlReader reader = XmlReader.Create(stream, settings);
      try {
        while (reader.Read()) {
          string currentNode = reader.Value;
        }
      }
      finally {
        reader.Close();
        stream.Close();
        schema.Close();
      }

      return nodes;
    }

    public static XsdNodeCollection Read(string filename, Stream schema) {
      return Read(File.Open(filename, FileMode.Open), schema);
    }
  }
}

private void menuItem4_Click(object sender, EventArgs e)
        {
            string wCS = @"Data Source =\Storage Card\ModeDifféré\BaseGmaoLocale.sdf;";
            SqlCeConnection sqlceconn = new SqlCeConnection(wCS);
            SqlCeCommand command2 = sqlceconn.CreateCommand();
            command2.CommandText = "INSERT INTO compteurs2 ([com], [quantite],[datequantite] ) Values(@com,@qtte,SYSDATE)";
            command2.ExecuteNonQuery();

            //Add the parameters
            SqlCeParameter com = new SqlCeParameter("@com", SqlDbType.NVarChar);
            com.Value = comComboBox.SelectedItem.ToString();

            command2.Parameters.Add(com);
            SqlCeParameter qtte = new SqlCeParameter("@qtte", SqlDbType.Float);
            qtte.Value = float.Parse(textBox1.Text);

            command2.Parameters.Add(qtte);
        }