IsolatedStorageFile 本地数据缓存 xml dataset 读写
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(); // 获取与调用代码的程序集标识对应的用户范围的独立存储
string fileName = "";
fileName = dataname.ToUpper() + ".xml";
using (IsolatedStorageFileStream isoStream = new IsolatedStorageFileStream(fileName, FileMode.Create, isoStore))
{
using (StreamWriter writer = new StreamWriter(isoStream))
{
dataset.WriteXml(writer, XmlWriteMode.WriteSchema);
}
}
}
catch
{ }
}
相对应的处理方式为：按照给定的文件名称（xml）读取数据到当前的dataset中以备后续的数据操作处理
代码如下：
public static void ReadDatafromXML(DataSet dataset, string dataname)
{
try
{
IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForAssembly();
string fileName = "";
fileName = dataname.ToUpper() + ".xml";
if (IsolatedStorageFile.GetUserStoreForAssembly().GetFileNames(fileName).Length == 0)
{
dataset = null;
}
else
{
using (IsolatedStorageFileStream isoStream = new IsolatedStorageFileStream(fileName, FileMode.Open, isoStore))
{
using (StreamReader reader = new StreamReader(isoStream))
{
dataset.ReadXml(reader, XmlReadMode.ReadSchema);
}
}
}
}
catch
{ }
}
相关文档：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Xml;
using System.IO;
using System.Data;
using System.Dat ......
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-2.dtd">
<sqlMap namespace="fw_student">
<resultMap class="com.sias.Student" id="student">
<result column="name" property="na ......
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 ......
private ClassLoader xmlLoader = Thread.currentThread().getContextClassLoader();
private void parseXML(String resource){
resource = StringUtils.substring(resource,resource.indexOf(":")+1,resource.length());
InputStream inputStream = xmlLoader.getResourceAsStream(resou ......
