/// <summary>
/// 读取XML返回经排序或筛选后的DataView
/// </summary>
/// <param name="strWhere">筛选条件，如:"name='kgdiwss'"</param>
/// <param name="strSort"> 排序条件，如:"Id desc"</param>
public DataView GetDataViewByXml(string strWhere, string strSort)
{
try
{
string XMLFile = this.XMLPath;
string filename = AppDomain.CurrentDomain.BaseDirectory.ToString() + XMLFile;
DataSet ds = new DataSet();
ds.ReadXml(filename);
DataView dv = new DataView(ds.Tables[0]); //创建DataView来完成排序或筛选操作
if (strSort != null)
{
dv.Sort = strSort; //对DataView中的记录进行排序
}
if (strWhere != null)
{
dv.RowFilter = strWhere; //对DataView中的记录进行筛选，找到我们想要的记录
}
return(dv);
}
catch (Exception e)
{
HIO.WriteLog(e);
return(null);
}
}
/// <summary>
/// 读取指定路径和节点的属性值
/// </summary>
/// <param name="path">路径</param>
/// <param name="node">节点</param>
/// <param name="attribute">属性名，非空时返回该属性值，否则返回串联值</param>
/// 使用示列:
/// XMLProsess.Read(path, "/Node", "")
/// XMLProsess.Read(path, "/Node/Element[@Attribute='Name']", "Attribute")
public static string Read(string path, string node, string attribute)
{
string value = "";
try
{
XmlDocument doc = XMLLoad(path);
XmlNode xn = doc.SelectSingleNode(node);
value = (attribute.Equals("") ? xn.InnerText : xn.Attributes[attribute].Value);
}
catch (Exception e)
{
HIO.WriteLog(e);
}
return(value);
}
/// <summary>
/// 读取指定路径和节点的串联值
/// </summary>
/// <param name="path">路径</param>
/// <param name="node">节点</param>
/// <param name="attribute">属性名，非空时返回该属性值，否则返回串联值</param>
/// 使用示列:
/// XMLProsess.Read(path, "/Node", "")
/// XMLProsess.Read(path, "/Node/Element[@Attribute='Name']")
public static string ReadValue(string path, string node)
{
string value = "";
try
{
XmlDocument doc = XMLLoad(path);
XmlNode xn = doc.SelectSingleNode(node);
value = xn.InnerText;
}
catch (Exception e)
{
HIO.WriteLog(e);
}
return(value);
}
/// <summary>
/// 读取指定节点的数据，属性的值
/// </summary>
/// <param name="node">节点</param>
/// <param name="attr">属性</param>
/// 使用示列:
/// XMLProsess.Read("/Node/Element[@Attribute='Name']","Attribute")
/// <returns></returns>
public string Read(string node, string attr)
{
string value = "";
try
{
XmlDocument doc = XMLLoad();
XmlNode xn = doc.SelectSingleNode(node);
value = xn.Attributes[attr].InnerXml;
}
catch (Exception e)
{
HIO.WriteLog(e);
}
return(value);
}
private static XmlDocument XMLLoad()
{
XmlDocument xmldoc = new XmlDocument();
try
{
string filename = AppDomain.CurrentDomain.BaseDirectory.ToString() + _path;
if (File.Exists(filename))
{
xmldoc.Load(filename);
}
}
catch (Exception e)
{
HIO.WriteLog(e);
}
return(xmldoc);
}
/// <summary>
/// 读取XML返回DataSet
/// </summary>
/// <param name="strXmlPath">XML文件相对路径</param>
public DataSet GetDataSetByXml(string strXmlPath)
{
try
{
DataSet ds = new DataSet();
ds.ReadXml(GetXmlFullPath(strXmlPath));
if (ds.Tables.Count > 0)
{
return(ds);
}
return(null);
}
catch (Exception e)
{
HIO.WriteLog(e);
return(null);
}
}
