using DataEntity.Page;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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using XCommon.Log;
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using UserControl = System.Windows.Controls.UserControl;
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namespace XHandler.View.Page
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{
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/// <summary>
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/// 分页组件
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/// </summary>
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public partial class PagerToolsControl : UserControl
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{
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#region 变量
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/// <summary>
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/// 当前页改变时发生
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/// </summary>
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public event C_EventClass.OnPagerIndexChangedEventHandler PageCntChanged = null;
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/// <summary>
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/// 每页行数改变时发生
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/// </summary>
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public event C_EventClass.OnPagerNumChangedEventHandler OnePageRowCntChanged = null;
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/// <summary>
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/// 总页数
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/// </summary>
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public int Total
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{
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get { return nAllPageCnt; }
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}
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/// <summary>
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/// 数据总数
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/// </summary>
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[Description("数据总数"), Browsable(false)]
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public int DataCount
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{
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get { return nAllDataCount; }
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set
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{
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nAllDataCount = value;
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nAllPageCnt = ((nAllDataCount + nOnePageRowCnt - 1) / nOnePageRowCnt);
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tBoxDataCnt.Text = aDataCountLable.Replace("#count", nAllDataCount.ToString());
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UpdataTotal();
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}
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}
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/// <summary>
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/// 当前页数
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/// </summary>
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[Description("当前页"), Browsable(false)]
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public int Current
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{
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get { return nCurrentPageNo; }
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set
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{
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if (value < 1)
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{
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value = 1;
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}
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else if (value > nAllPageCnt)
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{
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value = nAllPageCnt;
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}
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nCurrentPageNo = value;
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UpdataCurrent();
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}
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}
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/// <summary>
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/// 每页行数
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/// </summary>
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[Description("每页的行数"), Browsable(false)]
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public int PagerNum
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{
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get { return nOnePageRowCnt; }
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set
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{
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nOnePageRowCnt = value;
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isTrigger = false;
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/*更新完每页行数，要先更新总页数，再触发相关事件*/
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nAllPageCnt = ((nAllDataCount + nOnePageRowCnt - 1) / nOnePageRowCnt);
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UpdataTotal();
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UpdataCurrent();
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isTrigger = true;
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OnPagerNumChanged();
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}
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}
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/// <summary>
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/// 是否触发事件
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/// </summary>
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[Description("控制分页组件是否响应事件，主要用于代码设置分页组件，而不触发事件"), Browsable(false)]
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public bool IsTrigger
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{
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get { return isTrigger; }
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set { isTrigger = value; }
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}
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[Description("设置或获取数据总数的显示消息内容;#count 为占位符，将自动替换成数据总数")]
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public string DataCountLable
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{
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get
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{
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return aDataCountLable;
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}
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set
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{
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aDataCountLable = value;
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}
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}
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private string aDataCountLable = "共 #count 行";
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/// <summary>
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/// 总页数
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/// </summary>
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private int nAllPageCnt = 0;
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/// <summary>
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/// 数据总数
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/// </summary>
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private int nAllDataCount = 0;
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/// <summary>
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/// 当前页数
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/// </summary>
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private int nCurrentPageNo = 0;
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/// <summary>
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/// 每页行数
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/// </summary>
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private int nOnePageRowCnt = PaginationDefaultParameter.PageSize;
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/// <summary>
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/// 每页行数列表
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/// </summary>
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private List<int> OnePageRowCntList = new List<int>(new int[] { 15, 30, 50, 70, 100 });
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/// <summary>
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/// 是否需要触发相关事件
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/// </summary>
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private bool isTrigger = true;
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/// <summary>
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/// 触发事件的当前页号，用来防止当前页改变时的二次触发
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/// </summary>
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private int nTriggerPageNo = 0;
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#endregion
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#region 构造函数
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public PagerToolsControl()
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{
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InitializeComponent();
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//Dock = DockStyle.Bottom;
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tBoxDataCnt.Text = aDataCountLable;
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isTrigger = false;
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foreach (int iObj in OnePageRowCntList)
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{
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cBoxOnePageRowCnt.Items.Add(iObj);
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}
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cBoxOnePageRowCnt.SelectedIndex = 0;
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isTrigger = true;
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}
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#endregion
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#region 页面初始化
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private void UserControl_Loaded(object sender, RoutedEventArgs e)
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{
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try
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{
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DataCount = 0;
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}
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catch (Exception ex)
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{
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LoggerHelper.ErrorLog("ERROR:", ex);
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}
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}
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#endregion
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/// <summary>
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/// 更新总页数
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/// </summary>
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private void UpdataTotal()
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{
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//tlab_total.Text = string.Format(tlab_total.Tag.ToString(), aTotal);
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cBoxPageCnt.Items.Clear();
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for (int i = 0; i < nAllPageCnt; i++)
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{
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cBoxPageCnt.Items.Add(i + 1);
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}
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cBoxPageCnt.SelectedIndex = 0;
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if (nCurrentPageNo > nAllPageCnt)
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Current = nAllPageCnt;
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else
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{
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cBoxPageCnt.SelectedIndex = nCurrentPageNo - 1;
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OnPagerIndexChanged();
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UpdataView();
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}
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}
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/// <summary>
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/// 更新当前页
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/// </summary>
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private void UpdataCurrent()
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{
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tBoxCurrentPageNo.Text = nCurrentPageNo.ToString();
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cBoxPageCnt.SelectedIndex = nCurrentPageNo - 1;
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UpdataView();
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OnPagerIndexChanged();
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}
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/// <summary>
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/// 更新界面
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/// </summary>
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private void UpdataView()
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{
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if (nAllPageCnt == 0)
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{
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gridFirstPage.IsEnabled = gridLastPage.IsEnabled
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= gridNextPage.IsEnabled = gridPreviousPage.IsEnabled
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= tBoxCurrentPageNo.IsEnabled
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= cBoxPageCnt.IsEnabled = false;
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return;
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}
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if ((nCurrentPageNo == 1) && (nCurrentPageNo < nAllPageCnt))
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{
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gridFirstPage.IsEnabled = gridPreviousPage.IsEnabled = false;
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gridLastPage.IsEnabled = gridNextPage.IsEnabled
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= tBoxCurrentPageNo.IsEnabled
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= cBoxPageCnt.IsEnabled = true;
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}
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else if ((nCurrentPageNo == 1) && (nCurrentPageNo == nAllPageCnt))
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{
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gridFirstPage.IsEnabled = gridPreviousPage.IsEnabled
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= gridLastPage.IsEnabled = gridNextPage.IsEnabled
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= false;
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tBoxCurrentPageNo.IsEnabled
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= cBoxPageCnt.IsEnabled = true;
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}
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else if ((nCurrentPageNo > 1) && (nCurrentPageNo < nAllPageCnt))
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{
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gridFirstPage.IsEnabled = gridPreviousPage.IsEnabled
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= gridLastPage.IsEnabled = gridNextPage.IsEnabled
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= tBoxCurrentPageNo.IsEnabled
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= cBoxPageCnt.IsEnabled = true;
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}
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else if ((nCurrentPageNo > 1) && (nCurrentPageNo == nAllPageCnt))
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{
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gridLastPage.IsEnabled = gridNextPage.IsEnabled = false;
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gridFirstPage.IsEnabled = gridPreviousPage.IsEnabled
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= tBoxCurrentPageNo.IsEnabled
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= cBoxPageCnt.IsEnabled = true;
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}
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}
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/// <summary>
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/// 更新每页行数
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/// </summary>
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private void UpdataPagerNum()
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{
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if ((cBoxOnePageRowCnt.SelectedItem != null) && (nOnePageRowCnt == ((int)cBoxOnePageRowCnt.SelectedItem)))
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{
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return;
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}
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foreach (object iItem in cBoxOnePageRowCnt.Items)
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{
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if (((int)iItem) == nOnePageRowCnt)
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{
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cBoxOnePageRowCnt.SelectedItem = iItem;
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return;
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}
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}
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}
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/// <summary>
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/// 当前页改变时调用事件
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/// </summary>
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private void OnPagerIndexChanged()
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{
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if (!isTrigger) return;
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//if (nTriggerPageNo == nCurrentPageNo) return;
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if (PageCntChanged != null)
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{
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C_EventArgsClass iObj = new C_EventArgsClass();
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iObj.CurrentPageNo = nCurrentPageNo;
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iObj.Total = nAllPageCnt;
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Mouse.OverrideCursor = Cursors.Wait;
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PageCntChanged(this, iObj);
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Mouse.OverrideCursor = null;
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nTriggerPageNo = nCurrentPageNo;
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}
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}
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/// <summary>
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/// 每页行数改变时调用事件
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/// </summary>
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private void OnPagerNumChanged()
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{
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if (!isTrigger) return;
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if (OnePageRowCntChanged != null)
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{
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C_EventArgsClass iObj = new C_EventArgsClass();
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iObj.CurrentPageNo = nCurrentPageNo;
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iObj.Total = nAllPageCnt;
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iObj.PagerNum = nOnePageRowCnt;
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Mouse.OverrideCursor = Cursors.Wait;
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OnePageRowCntChanged(this, iObj);
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Mouse.OverrideCursor = null;
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}
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}
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/// <summary>
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/// 首页
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void btnFirstPage_Click(object sender, RoutedEventArgs e)
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{
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Current = 1;
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}
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/// <summary>
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/// 上一页
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void btnPreviousPage_Click(object sender, RoutedEventArgs e)
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{
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Current--;
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}
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/// <summary>
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/// 尾页
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void btnLastPage_Click(object sender, RoutedEventArgs e)
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{
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Current = nAllPageCnt;
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}
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/// <summary>
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/// 次页
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void btnNextPage_Click(object sender, RoutedEventArgs e)
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{
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Current++;
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}
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//private void tcomb_current_SelectedIndexChanged(object sender, EventArgs e)
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//{
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// //Current = tcomb_current.SelectedIndex + 1;
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//}
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/// <summary>
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/// 页数变更
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void cBoxPageCnt_SelectionChanged(object sender, SelectionChangedEventArgs e)
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{
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Current = cBoxPageCnt.SelectedIndex + 1;
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}
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/// <summary>
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/// 每页行数变更
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void cBoxOnePageRowCnt_SelectionChanged(object sender, SelectionChangedEventArgs e)
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{
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if (!isTrigger) return;
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PagerNum = (int)cBoxOnePageRowCnt.SelectedItem;
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}
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#region Del
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//private void ttxt_current_KeyPress(object sender, KeyPressEventArgs e)
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//{
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// //if (e.KeyChar == 13)
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// //{
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// // Current = int.Parse(ttxt_current.Text);
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// //}
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// //if (e.KeyChar != 8)//退格键
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// //{
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// // if ((e.KeyChar < '0') || (e.KeyChar > '9'))
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// // e.Handled = true;
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// //}
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//}
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//private void tcom_num_KeyPress(object sender, KeyPressEventArgs e)
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//{
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// //if (e.KeyChar == 13)
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// //{
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// // int ipagernum = int.Parse(tcom_num.Text);
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// // if (!aPagerNumList.Contains(ipagernum))
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// // {
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// // aPagerNumList.Add(ipagernum);
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// // tcom_num.Items.Add(ipagernum);
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// // aIsTrigger = false;
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// // tcom_num.SelectedItem = ipagernum;
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// // aIsTrigger = true;
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// // }
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// // //UpdataPagerNum();
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// // PagerNum = int.Parse(tcom_num.Text);
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// //}
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// //if (e.KeyChar != 8)//退格键
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// //{
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// // if ((e.KeyChar < '0') || (e.KeyChar > '9'))
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// // e.Handled = true;
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// //}
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//}
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#endregion
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}
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}
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