DataGrid最简单全面的分页 2

1　在绑定DataGrid方法设置允许分页；
２　在绑定DataGrid方法里初始化；
３　分页控制按钮属性
4 　分页返回总页数,并初始化按钮控件；
5 　linkBtn控件事件；
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1　设置允许分页；
　　this.dgbend.PageSize=10;
    this.dgbend.AllowPaging=true;

２　在绑定DataGrid页面里初始化；
　　#region //初始化页面分页
    if(ds.Tables.Count>0)
    {
     if(ds.Tables[0].Rows.Count>0)
     {
      if(this.dgbend.PageCount>0)
      {
       #region
       int indexnum = this.dgbend.CurrentPageIndex;
       int pagenum  = this.dgbend.PageCount;

       if(indexnum==0)
       {
        this.labnum.Text="当前是第"+1+"页," +"总共"+pagenum+"页";
        this.btnnext.Enabled =true;
        this.btnlast.Enabled =true;
        this.btnfirst.Enabled=false;
        this.btnprev.Enabled =false;
       }
       if(indexnum > 0)
       {
        if(indexnum < pagenum)
        {
         indexnum=indexnum+1;
         this.labnum.Text="当前是第"+indexnum+"页," +"总共"+pagenum+"页";
        }
        if(indexnum == pagenum)
        {
         indexnum=indexnum;
         this.labnum.Text="当前是第"+indexnum+"页," +"总共"+pagenum+"页";
        }
        }

       if(this.dgbend.PageCount==1)
       {
        this.labnum.Text="当前是第"+1+"页," +"总共"+1+"页";
        this.btnnext.Enabled =false;
        this.btnlast.Enabled =false;
        this.btnfirst.Enabled=false;
        this.btnprev.Enabled =false;
       }

       #endregion

       }
     }
     if(ds.Tables[0].Rows.Count==0)
     {
      
       this.labnum.Visible=false;
       this.labnum.Text="没有记录！";
     }
    }
    #endregion

3 //分页控制按钮属性
  private void btnEnabled(int indexpage)
  {
   int pageNum=NavigatBtn();
   if(pageNum ==0)
   {
    this.labnum.Text="没有记录!";
    this.btnfirst.Enabled =false;
    this.btnprev.Enabled =false;
    this.btnnext.Enabled =false;
    this.btnlast.Enabled =false;
   }
   if(pageNum-1 == 1)
   {
    this.btnfirst.Enabled =true;
    this.btnprev.Enabled =false;
    this.btnnext.Enabled =false;
    this.btnlast.Enabled =false;
   
   }
   if(pageNum > 1)
   {
    if(pageNum-1 == indexpage)
    {
     this.btnfirst.Enabled =true;
     this.btnprev.Enabled =true;
     this.btnnext.Enabled =false;
     this.btnlast.Enabled =false;
     
    }
    if(indexpage < pageNum-1)
    {
     this.btnfirst.Enabled =true;
     this.btnprev.Enabled =true;
     this.btnnext.Enabled =true;
     this.btnlast.Enabled =true;
     
    }
    if(indexpage ==0)
    {
     this.btnfirst.Enabled =false;
     this.btnprev.Enabled =false;
     this.btnnext.Enabled =true;
     this.btnlast.Enabled =true;
     
    }

   }
  
  }
4 //分页返回总页数,并初始化按钮控件
  private int NavigatBtn()
  {
   int pageNum=0;
  
    if(this.dgbend.PageCount>0)
    {
     pageNum =this.dgbend.PageCount; 
    }
   if(pageNum == 1)
   {
    this.btnfirst.Enabled =true;
    this.btnprev.Enabled =false;
    this.btnnext.Enabled =false;
    this.btnlast.Enabled =false;
   }
   if(pageNum > 1)
   {
    this.btnfirst.Enabled =true;
    this.btnprev.Enabled =true;
    this.btnnext.Enabled =true;
    this.btnlast.Enabled =true;
   }
   return pageNum;
 
  }

5 linkBtn控件事件；
　private void btnfirst_Click(object sender, System.EventArgs e)
  {
       this.dgbend.CurrentPageIndex=0;
    BindGrid();
   btnEnabled(0);

  }

  private void btnprev_Click(object sender, System.EventArgs e)
  {
       this.dgbend.CurrentPageIndex=System.Math.Max(this.dgbend.CurrentPageIndex -1,0);
    BindGrid();
    btnEnabled(this.dgbend.CurrentPageIndex);
  }

  private void btnnext_Click(object sender, System.EventArgs e)
  {
      this.dgbend.CurrentPageIndex=System.Math.Min(this.dgbend.PageCount -1,this.dgbend.CurrentPageIndex +1);
    BindGrid();
    btnEnabled(this.dgbend.CurrentPageIndex);
  }
  private void btnlast_Click(object sender, System.EventArgs e)
  {
   this.dgbend.CurrentPageIndex=this.dgbend.PageCount -1;
   BindGrid();
   btnEnabled(this.dgbend.CurrentPageIndex);
  }
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private void Page_Load(object sender, System.EventArgs e)
  {
   // 在此处放置用户代码以初始化页面
   if(!this.Page.IsPostBack)
   {
       BindGrid();
   }
  }
  private void BindGrid()
  {
   //定义数据连接对象,其中数据库连接字符串是在Web.Config文件中定义的
   SqlConnection cnn = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["ConnectionSqlServer"].ToString());
   //创建数据适配器对象
   SqlDataAdapter da = new SqlDataAdapter("select ProductID,ProductName from Products order by  ProductID",cnn);
   //创建DataSet对象
   DataSet ds = new DataSet();
   try
   {
    //填充数据集
    da.Fill(ds, "testTable");
    //进行数据绑定
    this.dgbend.PageSize=10;
    this.dgbend.AllowPaging=true;
    
    dgbend.DataSource = ds;
    dgbend.DataBind();

　　　　　　　　  #region //初始化页面分页
    if(ds.Tables.Count>0)
    {
     if(ds.Tables[0].Rows.Count>0)
     {
      if(this.dgbend.PageCount>0)
      {
       #region
       int indexnum = this.dgbend.CurrentPageIndex;
       int pagenum  = this.dgbend.PageCount;

       if(indexnum==0)
       {
        this.labnum.Text="当前是第"+1+"页," +"总共"+pagenum+"页";
        this.btnnext.Enabled =true;
        this.btnlast.Enabled =true;
        this.btnfirst.Enabled=false;
        this.btnprev.Enabled =false;
       }
       if(indexnum > 0)
       {
        if(indexnum < pagenum)
        {
         indexnum=indexnum+1;
         this.labnum.Text="当前是第"+indexnum+"页," +"总共"+pagenum+"页";
        }
        if(indexnum == pagenum)
        {
         indexnum=indexnum;
         this.labnum.Text="当前是第"+indexnum+"页," +"总共"+pagenum+"页";
        }
        }

       if(this.dgbend.PageCount==1)
       {
        this.labnum.Text="当前是第"+1+"页," +"总共"+1+"页";
        this.btnnext.Enabled =false;
        this.btnlast.Enabled =false;
        this.btnfirst.Enabled=false;
        this.btnprev.Enabled =false;
       }

       #endregion

       }
     }
     if(ds.Tables[0].Rows.Count==0)
     {
      
       this.labnum.Visible=false;
       this.labnum.Text="没有记录！";
     }
    }
    #endregion

   }
   catch(Exception error)
   {
    Response.Write(error.ToString());
   }  
  }

  #region Web 窗体设计器生成的代码
  override protected void OnInit(EventArgs e)
  {
   //
   // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
   //
   InitializeComponent();
   base.OnInit(e);
  }
  
  /// <summary>
  /// 设计器支持所需的方法 - 不要使用代码编辑器修改
  /// 此方法的内容。
  /// </summary>
  private void InitializeComponent()
  {   
   this.btnfirst.Click += new System.EventHandler(this.btnfirst_Click);
   this.btnprev.Click += new System.EventHandler(this.btnprev_Click);
   this.btnnext.Click += new System.EventHandler(this.btnnext_Click);
   this.btnlast.Click += new System.EventHandler(this.btnlast_Click);
   this.Load += new System.EventHandler(this.Page_Load);

  }
  #endregion

  private void btnfirst_Click(object sender, System.EventArgs e)
  {
       this.dgbend.CurrentPageIndex=0;
    BindGrid();
   btnEnabled(0);

  }

  private void btnprev_Click(object sender, System.EventArgs e)
  {
       this.dgbend.CurrentPageIndex=System.Math.Max(this.dgbend.CurrentPageIndex -1,0);
    BindGrid();
    btnEnabled(this.dgbend.CurrentPageIndex);
  }

  private void btnnext_Click(object sender, System.EventArgs e)
  {
      this.dgbend.CurrentPageIndex=System.Math.Min(this.dgbend.PageCount -1,this.dgbend.CurrentPageIndex +1);
    BindGrid();
    btnEnabled(this.dgbend.CurrentPageIndex);
  }
  private void btnlast_Click(object sender, System.EventArgs e)
  {
   this.dgbend.CurrentPageIndex=this.dgbend.PageCount -1;
   BindGrid();
   btnEnabled(this.dgbend.CurrentPageIndex);
  }

   //分页控制按钮属性
  private void btnEnabled(int indexpage)
  {
   int pageNum=NavigatBtn();
   if(pageNum ==0)
   {
    this.labnum.Text="没有记录!";
    this.btnfirst.Enabled =false;
    this.btnprev.Enabled =false;
    this.btnnext.Enabled =false;
    this.btnlast.Enabled =false;
   }
   if(pageNum-1 == 1)
   {
    this.btnfirst.Enabled =true;
    this.btnprev.Enabled =false;
    this.btnnext.Enabled =false;
    this.btnlast.Enabled =false;
   
   }
   if(pageNum > 1)
   {
    if(pageNum-1 == indexpage)
    {
     this.btnfirst.Enabled =true;
     this.btnprev.Enabled =true;
     this.btnnext.Enabled =false;
     this.btnlast.Enabled =false;
     
    }
    if(indexpage < pageNum-1)
    {
     this.btnfirst.Enabled =true;
     this.btnprev.Enabled =true;
     this.btnnext.Enabled =true;
     this.btnlast.Enabled =true;
     
    }
    if(indexpage ==0)
    {
     this.btnfirst.Enabled =false;
     this.btnprev.Enabled =false;
     this.btnnext.Enabled =true;
     this.btnlast.Enabled =true;
     
    }

   }
  
  }
       
  //分页返回总页数,并初始化按钮控件
  private int NavigatBtn()
  {
   int pageNum=0;
  
    if(this.dgbend.PageCount>0)
    {
     pageNum =this.dgbend.PageCount; 
    }
   if(pageNum == 1)
   {
    this.btnfirst.Enabled =true;
    this.btnprev.Enabled =false;
    this.btnnext.Enabled =false;
    this.btnlast.Enabled =false;
   }
   if(pageNum > 1)
   {
    this.btnfirst.Enabled =true;
    this.btnprev.Enabled =true;
    this.btnnext.Enabled =true;
    this.btnlast.Enabled =true;
   }
   return pageNum;
 
  }

 }
}
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 //分页控制按钮属性
  private  void btnEnabled(DataGrid dg,int indexpage,LinkButton btnfirst,LinkButton btnprev,LinkButton btnnext,LinkButton btnlast)
  {
   int pageNum=NavigatBtn(dg,btnfirst,btnprev,btnnext,btnlast);
   if(pageNum ==0)
   {
    //this.labnum.Text="没有记录!";
    btnfirst.Enabled =false;
    btnprev.Enabled =false;
    btnnext.Enabled =false;
    btnlast.Enabled =false;
   }
   if(pageNum-1 == 1)
   {
    btnfirst.Enabled =true;
    btnprev.Enabled =false;
    btnnext.Enabled =false;
    btnlast.Enabled =false;
   
   }
   if(pageNum > 1)
   {
    if(pageNum-1 == indexpage)
    {
     btnfirst.Enabled =true;
     btnprev.Enabled =true;
     btnnext.Enabled =false;
     btnlast.Enabled =false;
     
    }
    if(indexpage < pageNum-1)
    {
     btnfirst.Enabled =true;
     btnprev.Enabled =true;
     btnnext.Enabled =true;
     btnlast.Enabled =true;
     
    }
    if(indexpage ==0)
    {
     btnfirst.Enabled =false;
     btnprev.Enabled =false;
     btnnext.Enabled =true;
     btnlast.Enabled =true;
     
    }

   }
  
  }

  //分页返回总页数,并初始化按钮控件
  private static int NavigatBtn(DataGrid dg,LinkButton btnfirst,LinkButton btnprev,LinkButton btnnext,LinkButton btnlast)
  {
   int pageNum=0;
  
   if(dg.PageCount>0)
   {
    pageNum =dg.PageCount; 
   }
   if(pageNum == 1)
   {
    btnfirst.Enabled =true;
    btnprev.Enabled =false;
    btnnext.Enabled =false;
    btnlast.Enabled =false;
   }
   if(pageNum > 1)
   {
    btnfirst.Enabled =true;
    btnprev.Enabled =true;
    btnnext.Enabled =true;
    btnlast.Enabled =true;
   }
   return pageNum;
 
  }

 

 public static void fenye(DataGrid dg,LinkButton btnfirst,LinkButton btnprev,LinkButton btnnext,LinkButton btnlast,Label labnum)
{
 #region
 int indexnum = dg.CurrentPageIndex;
 int pagenum  = dg.PageCount;

 if(indexnum==0)
{
 labnum.Text="当前是第"+1+"页," +"总共"+pagenum+"页";
 btnnext.Enabled =true;
 btnlast.Enabled =true;
 btnfirst.Enabled=false;
 btnprev.Enabled =false;
}
 if(indexnum > 0)
{
 if(indexnum < pagenum)
{
 indexnum=indexnum+1;
 labnum.Text="当前是第"+indexnum+"页," +"总共"+pagenum+"页";
}
 if(indexnum == pagenum)
{
 indexnum=indexnum;
 labnum.Text="当前是第"+indexnum+"页," +"总共"+pagenum+"页";
}
}

 if(dg.PageCount==1)
{
 labnum.Text="当前是第"+1+"页," +"总共"+1+"页";
 btnnext.Enabled =false;
 btnlast.Enabled =false;
 btnfirst.Enabled=false;
 btnprev.Enabled =false;
}

 #endregion
}
 }
}
===================csj.08.06.30======================

/// <summary>
  ///分页操作 csj_080630
  /// </summary>
  /// <param name="lable">显示共多少页,当前是第几页 lable</param>
  /// <param name="lkbtn">第一页,上一页,下一面,最后页 linkbtn</param>
  /// <param name="dggrid">要分页的datagrid</param>
  /// <param name="pagesize">设置每页条数</param>
  public static void DataGridPageNaivegate(System.Web.UI.WebControls.Label lable,System.Web.UI.WebControls.LinkButton[] lkbtn,System.Web.UI.WebControls.DataGrid dggrid,string pagesize)
  {
   int pageNum=0;
   dggrid.PageSize=int.Parse(pagesize.Trim().ToString());
   if(dggrid.PageCount>=0)
   {
    pageNum = dggrid.PageCount;
   }

   if(pageNum==0)
   {
    lable.Visible              =  false;
    lable.Text                  = "没有记录！";
    
    lkbtn[0].Enabled           = false;
    lkbtn[1].Enabled           = false;
    lkbtn[2].Enabled           = false;
    lkbtn[3].Enabled           = false;
   }
   if(pageNum> 0)
   {
    int indexnum = dggrid.CurrentPageIndex;   //获取当前页索引
    int pagenum  = dggrid.PageCount;          //获取页总数
    if(indexnum==0)
    {
     lable.Text="当前是第"+1+"页," +"总共"+pagenum+"页";
     lkbtn[0].Enabled           = false;
     lkbtn[1].Enabled           = false;
     lkbtn[2].Enabled           = true;
     lkbtn[3].Enabled           = true;
    }
    if(indexnum > 0)
    {
     if(indexnum < pagenum)
     {
      indexnum=indexnum+1;
      lable.Text        = "当前是第"+indexnum+"页," +"总共"+pagenum+"页";
      lkbtn[0].Enabled           = true;
      lkbtn[1].Enabled           = true;
      lkbtn[2].Enabled           = true;
      lkbtn[3].Enabled           = true;
     }
     if(indexnum == pagenum)
     {
      indexnum=indexnum;
      lable.Text        = "当前是第"+indexnum+"页," +"总共"+pagenum+"页";
      lkbtn[0].Enabled           = true;
      lkbtn[1].Enabled           = true;
      lkbtn[2].Enabled           = false;
      lkbtn[3].Enabled           = false;
     }
    }
    if(dggrid.PageCount==1)
    {
     lable.Text="当前是第"+1+"页," +"总共"+1+"页";

     lkbtn[0].Enabled            = false;
     lkbtn[1].Enabled            = false;
     lkbtn[2].Enabled            = false;
     lkbtn[3].Enabled            = false;
    }
              MaterielOperate.QueryMateriel(ref dggrid,"");
   }
  }

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