简单明了的GridView分页代码

本文详细介绍了如何在ASP.NET中使用GridView组件实现分页功能,包括自定义 pager 模板和后台事件处理。通过`GridViewHistory`实例,展示了如何控制页码切换,以及关键的PageIndexChanging和Button_click事件处理。

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<asp:GridView ID="GridViewHistory" runat="server" AutoGenerateColumns="False" 
CssClass="vip_table" GridLines="None" BorderStyle="None" CellPadding="0" 
ShowHeader="False" AllowPaging="true" PageSize="20" 
onpageindexchanging="GridViewHistory_PageIndexChanging"> 
<PagerTemplate> 
<asp:LinkButton ID="lb_firstpage" runat="server" onclick="lb_firstpage_Click">首页</asp:LinkButton> 
<asp:LinkButton ID="lb_previouspage" runat="server" onclick="lb_previouspage_Click">上一页</asp:LinkButton> 
<asp:LinkButton ID="lb_nextpage" runat="server" onclick="lb_nextpage_Click">下一页</asp:LinkButton> 
<asp:LinkButton ID="lb_lastpage" runat="server" onclick="lb_lastpage_Click">尾页</asp:LinkButton><asp:Label ID="lbl_nowpage" runat="server" Text="<%#GridViewHistory.PageIndex+1 %>" ForeColor="#db530f"></asp:Label>/<asp:Label ID="lbl_totalpage" runat="server" Text="<%#GridViewHistory.PageCount %>" ForeColor="#db530f"></asp:Label></PagerTemplate> 

后台代码

//分页 
protected void GridViewHistory_PageIndexChanging(object sender, GridViewPageEventArgs e) 
{ 
GridViewHistory.PageIndex = e.NewPageIndex; 
dataBinding(); 
} 
protected void Button_search_Click(object sender, EventArgs e) 
{ 
dataBinding(); 
} 
protected void lb_firstpage_Click(object sender, EventArgs e) 
{ 
this.GridViewHistory.PageIndex = 0; 
dataBinding(); 
} 
protected void lb_previouspage_Click(object sender, EventArgs e) 
{ 
if (this.GridViewHistory.PageIndex > 0) 
{ 
this.GridViewHistory.PageIndex--; 
dataBinding(); 
} 
} 
protected void lb_nextpage_Click(object sender, EventArgs e) 
{ 
if (this.GridViewHistory.PageIndex < this.GridViewHistory.PageCount) 
{ 
this.GridViewHistory.PageIndex++; 
dataBinding(); 
} 
} 
protected void lb_lastpage_Click(object sender, EventArgs e) 
{ 
this.GridViewHistory.PageIndex = this.GridViewHistory.PageCount; 
dataBinding(); 
} 

public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { getData(); } } //得到数据 public void getData() { this.GridView1.DataSource = BLL.mesManager.getGridData(); this.GridView1.DataBind(); } // 绑定之后发生 protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { LinkButton lbtn = (LinkButton)e.Row.FindControl("LinkButton2"); e.Row.Attributes.Add("onmouseover", "currentcolor=this.style.backgroundColor;this.style.backgroundColor='#6699ff'"); e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=currentcolor"); string aa = e.Row.Cells[3].Text.ToString(); lbtn.Attributes.Add("OnClick", "return confirm('您确认要删除吗?')"); } } //发生时间时激发 protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e) { if (e.CommandName == "del") { int id = Convert.ToInt32(e.CommandArgument); int resultNum = BLL.mesManager.del(id); if (resultNum > 0) { Response.Write("<script>alert('删除成功');</script>"); getData(); } else { Response.Write("<script>alert('删除失败');</script>"); } } else if (e.CommandName == "upd") { int id = Convert.ToInt32(e.CommandArgument); Response.Redirect("Update.aspx?id=" + id); } } protected void GridView1_SelectedIndexChanging(object sender, GridViewSelectEventArgs e) { } //pageindexchangeing protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e) { this.GridView1.PageIndex = e.NewPageIndex; getData(); } //全部删除 protected void Button1_Click(object sender, EventArgs e) { for (int i = 0; i <= GridView1.Rows.Count - 1; i++) { CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1"); if (cbox.Checked == true) { int id=Convert.ToInt32( this.GridView1.Rows[i].Cells[1].Text); BLL.mesManager.del(id); } } getData(); } }
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