using System;
using System.Xml;
using System.IO;
using DataEditorX.Common;
using System.Windows.Forms;
using System.Diagnostics;
using System.Reflection;

namespace DataEditorX.Common
{
	public class XMLReader
	{
		#region XML操作config
		/// <summary>
		/// 保存值
		/// </summary>
		/// <param name="appKey"></param>
		/// <param name="appValue"></param>
		public static void Save(string appKey, string appValue)
		{
			XmlDocument xDoc = new XmlDocument();
			xDoc.Load(System.Windows.Forms.Application.ExecutablePath + ".config");

			XmlNode xNode = xDoc.SelectSingleNode("//appSettings");

			XmlElement xElem = (XmlElement)xNode.SelectSingleNode("//add[@key='" + appKey + "']");
			if (xElem != null) //存在，则更新
				xElem.SetAttribute("value", appValue);
			else//不存在，则插入
			{
				XmlElement xNewElem = xDoc.CreateElement("add");
				xNewElem.SetAttribute("key", appKey);
				xNewElem.SetAttribute("value", appValue);
				xNode.AppendChild(xNewElem);
			}
			xDoc.Save(System.Windows.Forms.Application.ExecutablePath + ".config");
		}
		/// <summary>
		/// 获取值
		/// </summary>
		/// <param name="appKey"></param>
		/// <returns></returns>
		public static string GetAppConfig(string appKey)
		{
			XmlDocument xDoc = new XmlDocument();
			xDoc.Load(System.Windows.Forms.Application.ExecutablePath + ".config");

			XmlNode xNode = xDoc.SelectSingleNode("//appSettings");

			XmlElement xElem = (XmlElement)xNode.SelectSingleNode("//add[@key='" + appKey + "']");

			if (xElem != null)
			{
				return xElem.Attributes["value"].Value;
			}
			return string.Empty;
		}
		#endregion
	}
}
