using System;using System.Data;using System.IO;using System.Windows.Forms;using System.Collections;

namespace DataLibrary{ /// <summary> /// 配置底层 /// </summary> public class ConfigManagerKeyValue {  private string pstrKey;  private object pobjValue;  /// <summary>  /// 配置管理键值  /// </summary>  /// <param name="Key"></param>  /// <param name="Value"></param>  public ConfigManagerKeyValue(string Key,object Value)   {   pstrKey = Key;   pobjValue = Value;  }

  /// <summary>  /// 键  /// </summary>  public string Key   {   get{return pstrKey;}   set{pstrKey=value;}  }

  /// <summary>  /// 值  /// </summary>  public object Value   {   get{return pobjValue;}   set{pobjValue=value;}  } }

 /// <summary> /// 配置管理业务 /// </summary> public class DisposalConductService  {  private string pstrFilename;  private DataSet dsDataSet;  private DataView dvDataView;  /// <summary>  /// 配置管理业务  /// </summary>  /// <param name="Filename"></param>  public DisposalConductService(string Filename)   {   pstrFilename = Filename;   initObjects();  }

  /// <summary>  /// 配置管理业务  /// </summary>  public DisposalConductService()   {   pstrFilename = System.Reflection.Assembly.GetExecutingAssembly().ToString() + ".exe.config";   AppDomain Ad = AppDomain.CurrentDomain;   pstrFilename = Ad.BaseDirectory + pstrFilename;   initObjects();  }

  private void initObjects()   {   initDataSource();   }    private void initDataSource()   {   dsDataSet = new DataSet();   try    {    dsDataSet.ReadXml(pstrFilename);    dvDataView = dsDataSet.Tables[0].DefaultView;    dvDataView.AllowEdit = true;    dvDataView.AllowDelete = true;    dvDataView.AllowNew = true;   }    catch(Exception)    {    dsDataSet.Tables.Add(createDataTable() );    dsDataSet.DataSetName = "Application";    try     {     saveData();     dvDataView = dsDataSet.Tables[0].DefaultView;     dvDataView.AllowEdit = true;     dvDataView.AllowDelete = true;     dvDataView.AllowNew = true;      }     catch(Exception e)     {     MessageBox.Show(e.Message);    }   }  }

  /// <summary>  /// 取得数据值  /// </summary>  /// <param name="KeyName">键名</param>  /// <param name="Default">默认值</param>  /// <returns>值</returns>  public object GetValue(string KeyName,object Default)   {   object strResult=Default;   DataRowView Row;   dvDataView.RowFilter="key='" + KeyName + "'";   if(dvDataView.Count != 0)    {    Row = dvDataView[0];    strResult = Row["value"];   }    else    {    AddValue(KeyName,Default);   }   return(strResult);  }

  /// <summary>  /// 取得值  /// </summary>  /// <returns>值</returns>  public ArrayList GetValues()   {   ArrayList List = new ArrayList();   try    {    dvDataView.RowFilter="";    foreach(DataRowView Row in dvDataView)     {     List.Add(new ConfigManagerKeyValue((string)Row["key"],Row["value"]));    }   }    catch{}   return List;  }

  /// <summary>  /// 增加一个值  /// </summary>  /// <param name="KeyName">键</param>  /// <param name="Value">值</param>  /// <returns>成功：true；失败：false</returns>  public bool AddValue(string KeyName,object Value)   {   DataRowView Row;   try    {    dvDataView.RowFilter="key='" + KeyName + "'";    if(dvDataView.Count==0)     {     Row = dvDataView.AddNew();     Row["key"] = KeyName;     Row["value"] = Value;     Row.EndEdit();     saveData();     return true;    }     else     {     return false;    }       }    catch(Exception e)    {    MessageBox.Show(e.Message);    return false;   }  }

  /// <summary>  /// 删除一个值  /// </summary>  /// <param name="KeyName">键</param>  /// <returns>成功：true；失败：false</returns>  public bool RemoveValue(string KeyName)   {   DataRowView Row;   dvDataView.RowFilter="key='" + KeyName + "'";   if(dvDataView.Count != 0)    {    Row = dvDataView[0];    Row.Delete();    return true;   }    else    {    return false;   }  }

  /// <summary>  /// 更新值  /// </summary>  /// <param name="KeyName">键</param>  /// <param name="Value">值</param>  /// <returns>成功：true；失败：false</returns>  public bool UpdateValue(string KeyName,object Value)   {   RemoveValue(KeyName);     return AddValue(KeyName,Value);   }    private void saveData()   {   dsDataSet.WriteXml(pstrFilename);  }    private DataTable createDataTable()   {   DataTable tbl = new DataTable();   tbl.TableName = "Configuration";   tbl.Columns.Add("key",typeof(string));   tbl.Columns.Add("value",typeof(string));   return(tbl);  }

  /// <summary>  /// 文件名  /// </summary>  public string Filename   {   get{return pstrFilename;}  } } }