WPF中的用户控件(UserControl)

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.钟健2011年4月7日16:38:06
/// </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方法
/// </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("输入数字格式错误！");
}
}
}

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

  代码写好之后在主页面调用该用户控件：

 在主页面中<Window>中加入 xmlns:local="clr-namespace:用户控件命名空间"

 然后只需在页面代码中嵌入 <local:用户控件名></local:用户控件名>即可使用

主页面后台调用代码：

 

privatevoid 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;
privatevoid 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;
}

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

 

 

附：在xaml页面引用（.dll）地址：

http://blog.sina.com.cn/s/blog_8679e2050100w1xf.html