C#简单的通用基础字典实现方法
本文实例讲述了C#简单的通用基础字典实现方法。分享给大家供大家参考。具体实现方法如下：
using System; using System.Collections.Generic; using System.Linq; using System.Text; using Alif.Alif_WSAPI; using System.Data; using System.Windows.Forms;namespace Alif.AlifForm.CommClass { /// <summary> /// /// </summary> public class PagingCtrl { /// <summary> /// 页大小 /// </summary> private int _PageSize = 50;
/// <summary> /// 页索引 /// </summary> private int _PageIndex = 1;
/// <summary> /// 记录数 /// </summary> private int _RecodeCount = 0;
/// <summary> /// 页数 /// </summary> private int _PageCount = 0;
/// <summary> /// 回调函数获取要查询数据的XML数据参数 /// </summary> /// <param name="PageIndex"></param> /// <param name="PageSize"></param> /// <returns></returns> public delegate string LoadXML(int PageIndex, int PageSize);
/// <summary> /// 在读取数据后发生的事件，用于通知客户 /// </summary> public delegate void afterDataLoadDelegate();
/// <summary> /// 在读取数据前发生的事件，提示客户等待 /// </summary> public delegate void beforeDataLoadDelegate();
/// <summary> /// 在读取数据发生错误时发生，用于错误处理 /// </summary> public delegate void errorDataLoadDelegate(string ErrMSG);
/// <summary> /// 首页按钮 /// </summary> System.Windows.Forms.Button _btFirst;
/// <summary> /// 前页按钮 /// </summary> System.Windows.Forms.Button _btPreview;
/// <summary> /// 下一页按钮 /// </summary> System.Windows.Forms.Button _btNext;
/// <summary> /// 末页按钮 /// </summary> System.Windows.Forms.Button _btLast;
/// <summary> /// 刷新按钮 /// </summary> System.Windows.Forms.Button _btreflesh;
/// <summary> /// 记录数提示Label /// </summary> System.Windows.Forms.Label _msg;
/// <summary> /// 每页记录数combo /// </summary> System.Windows.Forms.ComboBox _comPageSize;
/// <summary> /// 当前页索引combo /// </summary> System.Windows.Forms.ComboBox _comToPageIndex;
/// <summary> /// 显示数据的datagridview /// </summary> C1.Win.C1FlexGrid.C1FlexGrid _dv;
LoadXML _loadxml; afterDataLoadDelegate _afterDataLoad; beforeDataLoadDelegate _beferDataLoad; errorDataLoadDelegate _errorDataLoad;
public string _webseiviceComm = "";
/// <summary> /// 构造函数 /// </summary> /// <param name="btFirst">首页</param> /// <param name="btPreview">上一页</param> /// <param name="btNext">下一页</param> /// <param name="btLast">末页</param> /// <param name="btreflesh">刷新</param> /// <param name="msg">共x页,记录数：x</param> /// <param name="PageSize">页大小</param> /// <param name="PageIndex">页索引</param> /// <param name="dv">显示数据的datagridview</param> /// <param name="webseiviceComm">命令编号</param> /// <param name="loadxmlCallBack">参数</param> /// <param name="beferfireCallBack">加载之前处理的回调函数</param> /// <param name="afterfireCallBack">加载之后处理的回调函数</param> /// <param name="errorfireCallBack">错误处理的回调函数</param> public PagingCtrl(System.Windows.Forms.Button btFirst, System.Windows.Forms.Button btPreview, System.Windows.Forms.Button btNext, System.Windows.Forms.Button btLast, System.Windows.Forms.Button btreflesh, System.Windows.Forms.Label msg, System.Windows.Forms.ComboBox PageSize, System.Windows.Forms.ComboBox PageIndex, C1.Win.C1FlexGrid.C1FlexGrid dv, string webseiviceComm, LoadXML loadxmlCallBack, beforeDataLoadDelegate beferfireCallBack, afterDataLoadDelegate afterfireCallBack, errorDataLoadDelegate errorfireCallBack) { _btFirst = btFirst; _btPreview = btPreview; _btNext = btNext; _btLast = btLast; _msg = msg; _dv = (C1.Win.C1FlexGrid.C1FlexGrid)dv; _loadxml = loadxmlCallBack; _webseiviceComm = webseiviceComm; _comPageSize = PageSize; _comToPageIndex = PageIndex; _btreflesh = btreflesh; _beferDataLoad = beferfireCallBack; _afterDataLoad = afterfireCallBack; _errorDataLoad = errorfireCallBack;
if (_btFirst != null) { _btFirst.Click += new System.EventHandler(this.btFirst_Click); } if (_btPreview != null) { _btPreview.Click += new System.EventHandler(this.btUp_Click); } if (_btNext != null) { _btNext.Click += new System.EventHandler(this.btNext_Click); } if (_btLast != null) { _btLast.Click += new System.EventHandler(this.btLast_Click); }
if (_comPageSize != null) { _comPageSize.SelectedIndexChanged += new System.EventHandler(comPageSize_SelectedIndexChanged); } if (_comToPageIndex != null) { _comToPageIndex.SelectedIndexChanged += new EventHandler(comToPageIndex_SelectedIndexChanged); _comToPageIndex.Tag = ""; } if (_btreflesh != null) { _btreflesh.Click += new System.EventHandler(this.btReflesh_Click); } }
/// <summary> /// 调用webservice 方法获取数据 /// </summary> /// <param name="webservicecomm"></param> /// <param name="Xmlcommand"></param> public void LoadData(string webservicecomm, string Xmlcommand) { if (_comToPageIndex != null) { //防止程序重入 if (_comToPageIndex.Tag == null || _comToPageIndex.Tag.ToString() == "1") { return; } _comToPageIndex.Tag = "1"; }
//出发beforefire事件 if (_beferDataLoad != null) { _beferDataLoad(); }
System.Data.DataSet ds;
try { ds = LoadWebServiceData(webservicecomm, Xmlcommand);
if (!ds.Tables.Contains("table0")) { if(_dv.DataSource!=null) { ((DataTable)_dv.DataSource).Clear(); } } else {
_dv.DataSource = ds.Tables["table0"];
}
this._PageSize = Int32.Parse(ds.Tables["TabScript"].Rows[0]["PageSize"].ToString()); this._PageIndex = Int32.Parse(ds.Tables["TabScript"].Rows[0]["PageIndex"].ToString()); this._RecodeCount = Int32.Parse(ds.Tables["TabScript"].Rows[0]["Rows"].ToString()); this._PageCount = this._RecodeCount / this._PageSize + 1;
if (_comToPageIndex != null) { _comToPageIndex.Items.Clear(); for (int i = 1; i <= this._PageCount; ++i) { _comToPageIndex.Items.Add(i.ToString());
} _comToPageIndex.Text = this._PageIndex.ToString(); }
if (_msg != null) { _msg.Text = "当前第" + this._PageIndex + "页," + "共" + this._PageCount.ToString() + "页,记录数：" + this._RecodeCount.ToString(); }
if (_btFirst != null) { _btFirst.Enabled = this._PageIndex <= 1 ? false : true; } if (_btPreview != null) { _btPreview.Enabled = _btFirst.Enabled; } if (_btLast != null) { _btLast.Enabled = this._PageIndex >= this._PageCount ? false : true; }
if (_btLast != null) { _btLast.Enabled = _btLast.Enabled; } } catch (Exception ex) { //发生webservice错误 if (_errorDataLoad != null) { _errorDataLoad("连接WebService服务器失败(001)！\n\r错误原因：" + ex.Message); } if (_comToPageIndex != null) { _comToPageIndex.Tag = ""; } }
if (_afterDataLoad != null) { _afterDataLoad(); }
if (_comToPageIndex != null) { _comToPageIndex.Tag = ""; } }
/// <summary> /// /// </summary> /// <param name="XmlComm"></param> public void LoadData(string XmlComm) { LoadData(_webseiviceComm, XmlComm);
}
/// <summary> /// /// </summary> public void LoadData() { LoadData(_webseiviceComm, _loadxml(this._PageIndex, this._PageSize)); }
/// <summary> /// 加载web服务数据 /// </summary> /// <param name="cmdID">命令编号</param> /// <param name="para">参数</param> /// <returns>数据集</returns> private DataSet LoadWebServiceData(string cmdID, string para) { int tt; string errmsg = ""; System.Data.DataSet ds = new DataSet(); try { tt = WebService.GetInstance(CommonInfo.LoginInfo.userParameters).Execute("DataServices", cmdID, "1", para, out errmsg, out ds); } catch (Exception ex) { //发生webservice错误 throw new Exception("连接WebService服务器失败(001)！\n\r错误原因：" + ex.Message); }
if (tt == 1) { //获取数据成功 return ds; } else { //获取keystring错误 throw new Exception("服务器返回失败信息(002)！\n\r错误原因：" + errmsg); } }
/// <summary> /// 刷新 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btReflesh_Click(object sender, EventArgs e) { LoadData(); }
/// <summary> /// 下一页 /// </summary> public void NextPage() { this._btNext.PerformClick(); }
/// <summary> /// 下一页 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btNext_Click(object sender, EventArgs e) { _PageIndex++; LoadData(); }
/// <summary> /// 上一页 /// </summary> public void UpPage() { this._btPreview.PerformClick(); }
/// <summary> /// 上一页 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btUp_Click(object sender, EventArgs e) { --_PageIndex; LoadData(); }
/// <summary> /// 首页 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btFirst_Click(object sender, EventArgs e) { _PageIndex = 1; LoadData(); }
/// <summary> /// 首页 /// </summary> public void FirstPage() { this._btFirst.PerformClick(); }
/// <summary> /// 最后一页 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btLast_Click(object sender, EventArgs e) { _PageIndex = _PageCount; LoadData(); }
/// <summary> /// 最后一页 /// </summary> public void LastPage() { this._btLast.PerformClick(); }
/// <summary> /// combobox选择改变页号 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void comPageSize_SelectedIndexChanged(object sender, EventArgs e) { this._PageSize = Int32.Parse(_comPageSize.Text); LoadData(); }
/// <summary> /// 翻到第几页 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void comToPageIndex_SelectedIndexChanged(object sender, EventArgs e) { this._PageIndex = Int32.Parse(_comToPageIndex.Text); LoadData(); } } }
希望本文所述对大家的C#程序设计有所帮助。
