wpf DataGrid的分页实现

<DataGrid  Name="dataGrid1" AutoGenerateColumns="False">          <!--省略N个代码-->  </DataGrid>  <StackPanel Orientation="Horizontal">         <TextBlock Text="转到" Margin="5"/>         <TextBox Name="tbxPageNum" Text="" />         <TextBlock Text="页" />         <Button Content="GO"   Click="btnGo_Click"/>         <Button Name="btnUp" Content="上一页"  VerticalAlignment="Center" Click="btnUp_Click"/>          <Button Name="btnNext" Content="下一页"  VerticalAlignment="Center" Click="btnNext_Click"/>         <TextBlock Height="20">               <TextBlock Text="【共" />               <TextBlock Name="tbkTotal" Foreground="Red" />               <TextBlock Text="页】" />               <TextBlock Text="【当前" />               <TextBlock Name="tbkCurrentsize" Foreground="Red" />               <TextBlock Text="页】" />         </TextBlock>  </StackPanel>  </Grid> 

<Grid> <DataGrid Name="dataGrid1" AutoGenerateColumns="False"> <!--省略N个代码--> </DataGrid> <StackPanel Orientation="Horizontal"> <TextBlock Text="转到" Margin="5"/> <TextBox Name="tbxPageNum" Text="" /> <TextBlock Text="页" /> <Button Content="GO" Click="btnGo_Click"/> <Button Name="btnUp" Content="上一页" VerticalAlignment="Center" Click="btnUp_Click"/> <Button Name="btnNext" Content="下一页" VerticalAlignment="Center" Click="btnNext_Click"/> <TextBlock Height="20"> <TextBlock Text="【共" /> <TextBlock Name="tbkTotal" Foreground="Red" /> <TextBlock Text="页】" /> <TextBlock Text="【当前" /> <TextBlock Name="tbkCurrentsize" Foreground="Red" /> <TextBlock Text="页】" /> </TextBlock> </StackPanel> </Grid>

首先我们先写个分页的方法，供上面这些事件调用

后台代码

//number表示每个页面显示的记录数    currentSize表示当前显示页数

private
void Binding(int
 number, int currentSize)
{
      List<Information> infoList =
new List<Information>();
      infoList = tbInfo.GetInformationList();     
//获取数据源
      int count = infoList.Count;         
//获取记录总数
      int pageSize = 0;           
//pageSize表示总页数
      if (count % number == 0)
      {
           pageSize = count / number;
      }
      else
      {
           pageSize = count / number + 1;
      }
      tbkTotal.Text = pageSize.ToString();

      tbkCurrentsize.Text = currentSize.ToString();
      infoList = infoList.Take(number * currentSize).Skip(number * (currentSize - 1)).ToList();  
//刷选第currentSize页要显示的记录集
      dataGrid1.ItemsSource = infoList;       
//重新绑定dataGrid1
}



//分页方法写好了 接下来就是响应下一页，上一页，和跳转页面的事件了

//先定义一个常量

const
int Num=12; 
//表示每页显示12条记录

//上一页事件

private
void btnUp_Click(object
 sender, RoutedEventArgs e)
{
     int currentsize =
int.Parse(tbkCurrentsize.Text);
//获取当前页数
     if (currentsize > 1)
     {
         Binding(Num, currentsize - 1);  
//调用分页方法
     }
}


//下一页事件
private
void btnNext_Click(object
 sender, RoutedEventArgs e)
{
     int total =
int.Parse(tbkTotal.Text);
//总页数
     int currentsize =
int.Parse(tbkCurrentsize.Text);
//当前页数
     if (currentsize < total)
    {
        Binding(Num, currentsize + 1);  
//调用分页方法
    }
}


//跳转事件
private
void btnGo_Click(object
 sender, RoutedEventArgs e)
{
    int pageNum =
int.Parse(tbxPageNum.Text);
    int total =
int.Parse(tbkTotal.Text);
//总页数
    if (pageNum >= 1 && pageNum <= total)
    {
       Binding(Num, pageNum);    
//调用分页方法
    }
}