/// <summary>
/// 从某个配置文件中读取键为key的项的值
/// </summary>
/// <param name="file"></param>
/// <param name="key"></param>
/// <returns></returns>
protected string GetConfig(string file, string key)
{
string ret = null;
if (File.Exists(file))
{
try
{
XmlSerializer ser = new XmlSerializer(typeof(List <MyKeyValuePair>));
using (FileStream fs = new FileStream(file, FileMode.Open, FileAccess.Read))
{
List <MyKeyValuePair> items = ser.Deserialize(fs) as List <MyKeyValuePair>;
if (items != null && items.Count > 0)
{
MyKeyValuePair kv = items.SingleOrDefault(it => it.Key == key);
ret = kv != null ? kv.Value : null;
}
}
}
catch (Exception ex)
{
ExceptionPolicy.HandleException(ex);
}
}
return(ret);
}
/// <summary>
/// 将某个配置保存到某个配置文件中
/// </summary>
/// <param name="file"></param>
/// <param name="key"></param>
/// <param name="value"></param>
protected void SaveConfig(string file, string key, string value)
{
try
{
XmlSerializer ser = new XmlSerializer(typeof(List <MyKeyValuePair>));
List <MyKeyValuePair> items = null;
if (File.Exists(file))
{
using (FileStream fs = new FileStream(file, FileMode.Open, FileAccess.Read))
{
items = ser.Deserialize(fs) as List <MyKeyValuePair>;
}
}
if (items == null)
{
items = new List <MyKeyValuePair>();
}
var mykey = string.Format("{0}_{1}", this.GetType().Name, key);
MyKeyValuePair kv = items.SingleOrDefault(it => it.Key == mykey);
if (kv != null)
{
kv.Value = value;
}
else
{
items.Add(new MyKeyValuePair {
Key = mykey, Value = value
});
}
using (FileStream fs = new FileStream(file, FileMode.Create, FileAccess.Write))
{
ser.Serialize(fs, items);
}
}
catch (Exception ex)
{
ExceptionPolicy.HandleException(ex);
}
}