DataSet XMl DateTable 互转
/// <summary>
/// DataTable-------------------->XML --String
/// </summary>
public static String ToXmlString(DataTable dt)
{
StringWriter tr = new StringWriter();
try
{
dt.WriteXml(tr);
return tr.ToString();
}
catch
{
throw;
}
finally
{
tr.Dispose();
}
}
/// <summary>
/// DataSet----------------->XML---String
/// </summary>
public static String ToXmlString(DataSet ds)
{
StringWriter tr = new StringWriter();
try
{
ds.WriteXml(tr, XmlWriteMode.IgnoreSchema);
return tr.ToString();
}
catch
{
throw;
}
finally
{
tr.Dispose();
}
}
/// <summary>
/// xml转换为数据集
/// </summary>
public static DataSet XmlToDataSet(string xml)
{
try
{
StringReader sr = new StringReader(xml);
DataSet ds = new DataSet();
ds.ReadXml(sr);
return ds;
}
catch
{
throw;
}
}
/// <summary>
/// Xml转换为数据表
/// </summary>
public static DataTable ToDataTable(string xmlData, int TableIndex)
{
try
{
return XmlToDataSet(xmlData).Tables[TableIndex];
}
catch
{
throw;
}
}
相关文档：
private void CreateNewXmlNode()
{
String strFileName = string.Empty;
strFileName = this.strCurrentPath + "System.xml";
XmlDocument xmlDoc = new XmlDocument();
try
{
xmlDoc.Load(strFileName);
......
data.xml
<?xml version="1.0" encoding="UTF-8"?>
<Items>
<Item ASIN="0446355453"
Author="Sidney Sheldon"
Manufacturer="Warner Books"
ProductGroup="Book"
Title="Master of the Game"/>
<Item ASIN=" ......
declare @xml xml
set @xml = '<root/>'
select @xml
declare @value varchar(10)
set @value = 'val1'
set @xml.modify('insert <item value="{sql:variable("@value")}" /> into (/root)[1]')
select @xml
set @value = 'val2'
set @xml.modify('replace value of (/root/item/@value)[1] with "val2 ......
IsolatedStorageFile：包含文件和数据的独立存储区
dataset数据存储到本地xml文档，代码处理如下
public static void WriteDataToXML(DataSet dataset, string dataname)
{
try
{
IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForAssembly(); / ......
Definition comparer class,
class ItemComparer : IEqualityComparer<XElement>
{
public bool Equals(XElement x, XElement y)
{
return x.Attribute("Name").Value == x.Attribute("Name").Value;
}
public int GetHashCode(XElement obj)
......
