WPF 分页控件应用

 

效果图：   

前台代码：

<UserControl x:Class="Layout.UI.Comm.Pager"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" 
>
    <Grid>
        <Label Content="" Height="28" HorizontalAlignment="Left" Margin="0，0，0，0" Name="lblinfo" VerticalAlignment="Center" />
        <Button Content="上一页" Height="23" HorizontalAlignment="Left" Margin="172，0，0，0" Name="btnPrev" VerticalAlignment="Center" Width="75" Click="btnPrev_Click" />
        <Button Content="下一页" Height="23" HorizontalAlignment="Right" Margin="0，0，272，0" Name="btnNext" VerticalAlignment="Center" Width="75"  Click="btnNext_Click"/>
        <TextBox Height="23" Margin="533，0，0，0" Name="txtCurrentPage" VerticalAlignment="Center" HorizontalAlignment="Left" Width="34" />
        <Button Content="转到" HorizontalAlignment="Right" Margin="0，0，96，0" Name="btnGo" Width="75" Height="23" Click="btnGo_Click" />
        <Label Content="页"  HorizontalAlignment="Left" Margin="573，0，0，0" Name="label2" VerticalAlignment="Center" />
        <Label Content="第"  Margin="0，0，68，0" Name="label3" VerticalAlignment="Center" HorizontalAlignment="Right"  />
        <Button Content="首页" Height="23" HorizontalAlignment="Left" Margin="91，0，0，0" Name="btnFirst" VerticalAlignment="Center" Width="75" Click="btnFirst_Click" />
        <Button Content="末页" Height="23" HorizontalAlignment="Left" Margin="334，0，0，0" Name="btnLast" VerticalAlignment="Center" Width="75" Click="btnLast_Click" />       
    </Grid>
</UserControl>
 

 
 

 
 

 
 

后台代码:
 

 
 



using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Layout.UI.Comm
{
    /// <summary>
    /// 申明委托
    /// </summary>
    /// <param name="e"></param>
    /// <returns></returns>
    public delegate int EventPagingHandler（EventPagingArg e）;
    　　 /// <summary>
    ///wpf分页控件     /// </summary>
    public partial class Pager : UserControl
    {
        public Pager（）
        {
            InitializeComponent（）;
        }

        public event EventPagingHandler EventPaging;
        /// <summary>
        /// 每页显示记录数
        /// </summary>
        private int _pageSize = 20;
        /// <summary>
        /// 每页显示记录数
        /// </summary>
        public int PageSize
        {
            get { return _pageSize; }
            set
            {
                _pageSize = value;
                GetPageCount（）;
            }
        }

        private int _nMax = 0;
        /// <summary>
        /// 总记录数
        /// </summary>
        public int NMax
        {
            get { return _nMax; }
            set
            {
                _nMax = value;
                GetPageCount（）;
            }
        }

        private int _pageCount = 0;
        /// <summary>
        /// 页数=总记录数/每页显示记录数
        /// </summary>
        public int PageCount
        {
            get { return _pageCount; }
            set { _pageCount = value; }
        }

        private int _pageCurrent = 0;
        /// <summary>
        /// 当前页号
        /// </summary>
        public int PageCurrent
        {
            get { return _pageCurrent; }
            set { _pageCurrent = value; }
        }

       

        private void GetPageCount（）
        {
            if （this.NMax > 0）
            {
                this.PageCount = Convert.ToInt32（Math.Ceiling（Convert.ToDouble（this.NMax） / Convert.ToDouble（this.PageSize）））;
            }
            else
            {
                this.PageCount = 0;
            }
        }

        /// <summary>
        /// 翻页控件数据绑定的办法
        /// </summary>
        public void Bind（）
        {
            if （this.EventPaging != null）
            {
                this.NMax = this.EventPaging（new EventPagingArg（this.PageCurrent））;
            }

            if （this.PageCurrent > this.PageCount）
            {
                this.PageCurrent = this.PageCount;
            }
            if （this.PageCount == 1）
            {
                this.PageCurrent = 1;
            }
            lblinfo.Content = ""+NMax+"条 " + this.PageCurrent.ToString（） + "/" + this.PageCount.ToString（）+"";
        
            this.txtCurrentPage.Text = this.PageCurrent.ToString（）;

            if （this.PageCurrent == 1）
            {
                this.btnPrev.IsEnabled = false;
                this.btnFirst.IsEnabled = false;
            }
            else
            {
                btnPrev.IsEnabled = true;
                btnFirst.IsEnabled = true;
            }

            if （this.PageCurrent == this.PageCount）
            {
                this.btnLast.IsEnabled = false;
                this.btnNext.IsEnabled = false;
            }
            else
            {
                btnLast.IsEnabled = true;
                btnNext.IsEnabled = true;
            }

            if （this.NMax == 0）
            {
                btnNext.IsEnabled = false;
                btnLast.IsEnabled = false;
                btnFirst.IsEnabled = false;
                btnPrev.IsEnabled = false;
            }
        }

  

        private void btnLast_Click（object sender， RoutedEventArgs e）
        {
            PageCurrent = PageCount;
            this.Bind（）;
        }
      

       

        private void btnNext_Click（object sender， RoutedEventArgs e）
        {
            this.PageCurrent += 1;
            if （PageCurrent > PageCount）
            {
                PageCurrent = PageCount;
            }
            this.Bind（）;
        }

        private void btnGo_Click（object sender， RoutedEventArgs e）
        {
            if （this.txtCurrentPage.Text != null && txtCurrentPage.Text != ""）
            {
                if （Int32.TryParse（txtCurrentPage.Text， out _pageCurrent））
                {
                    this.Bind（）;
                }
                else
                {
                    MessageBox.Show（"输入数字格局错误！"）;
                }
            }
        }

        private void btnFirst_Click（object sender， RoutedEventArgs e）
        {
            PageCurrent = 1;
            this.Bind（）;
        }

      

        private void btnPrev_Click（object sender， RoutedEventArgs e）
        {
            PageCurrent -= 1;
            if （PageCurrent <= 0）
            {
                PageCurrent = 1;
            }
            this.Bind（）;
        }

    }
    /// <summary>
    /// 自定义事务数据基类
    /// </summary>
    public class EventPagingArg : EventArgs
    {
        private int _intPageIndex;
        public EventPagingArg（int PageIndex）
        {
            _intPageIndex = PageIndex;
        }
    }
}
 

应用办法:

   private void Form_Loaded（object sender， RoutedEventArgs e）
        {
            pager.PageSize = 12;
            pager.PageCurrent = 1;
            BindData（）;
            pager.NMax = total;
        }


 string strWhere = "IsPass=1";
        int total = 0;
        DataSet ds;
        private void BindData（）
        {
            ds = OrderRecords.instance.GetList（pager.PageSize， pager.PageCurrent， strWhere， "Status asc，CurTime Desc"， out total）;
            gvOrderList.ItemsSource = ds.Tables[0].DefaultView;
            gvOrderList.CanUserAddRows = false;
        }

        private int pager_EventPaging（Comm.EventPagingArg e）
        {
            int pagd = pager.PageCurrent;
            BindData（）;
            return total;
        }