公共配置底层代码

王朝other·作者佚名  2006-01-09
窄屏简体版  字體: |||超大  

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;}

}

}

}

 
 
 
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