Repeater自定义分页 + 排序 + 全选删除

页面代码:



<%@ Page Language="C#" AutoEventWireup="true" CodeFile="RepeaterPagingSortingDelete.aspx.cs" Inherits="RepeaterPagingSortingDelete" %>



<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">



<html xmlns="http://www.w3.org/1999/xhtml"> 

<head runat="server"> 

    <title>RepeaterPagingSortingDelete</title> 

    <script language="javascript" type="text/javascript"> 

        function chooseAll(sender) 

        { 

            var inputs = document.all.tags("INPUT"); 

            // 遍历页面上所有的 input  

            for (var i = 0; i < inputs.length; i++)  

            {        

                    //如果此input元素的类型为checkbox,并且其id中包含chkSelect 

                    if (inputs[i].type == "checkbox" && inputs[i].id.indexOf("chkSelect") >= 0) 

                    { 

                        //设置此复选框的checked与全选复选框相同 

                        inputs[i].checked = document.getElementById(sender).checked; 

                        inputs[i].onclick(); 

                    }  

            } 

        } 

         

        function highLightSelected(chkSelect) 

        {  

            if (chkSelect.checked)  

                chkSelect.parentElement.parentElement.style.backgroundColor='#CCCCFF';  

            else  

                chkSelect.parentElement.parentElement.style.backgroundColor='white';  

        } 

    </script> 

</head> 

<body> 

    <form id="form1" runat="server"> 

    <div> 

        <asp:LinkButton id="lbtnFirst" runat="server" CommandName="First" OnCommand="lbtnPage_Command">|<</asp:LinkButton>   

        <asp:LinkButton id="lbtnPrevious" runat="server" CommandName="Previous" OnCommand="lbtnPage_Command"><<</asp:LinkButton>   

        <asp:Label id="lblMessage" runat="server" />   

        <asp:LinkButton id="lbtnNext" runat="server" CommandName="Next" OnCommand="lbtnPage_Command">>></asp:LinkButton>   

        <asp:LinkButton id="lbtnLast" runat="server" CommandName="Last" OnCommand="lbtnPage_Command">>|</asp:LinkButton>   

        转到第<asp:DropDownList ID="dropPage" runat="server" AutoPostBack="True" OnSelectedIndexChanged="dropPage_SelectedIndexChanged"></asp:DropDownList>页         

        <asp:Repeater ID="rptProducts" runat="server"  

            onitemcreated="rptProducts_ItemCreated"  

            onitemdatabound="rptProducts_ItemDataBound"> 

            <HeaderTemplate> 

                <table border="1"> 

                <tr> 

                    <td id="tdAll" runat="server"><asp:CheckBox ID="chkAll" runat="server" /></td> 

                    <td id="tdProductID" runat="server"><asp:LinkButton ID="lbtnProductID" runat="server" Text="ProductID" CommandName="ProductID" OnCommand="lbtnSort_Command"></asp:LinkButton><asp:Label ID="lblHeadProductID" runat="server" Visible="false"></asp:Label></td> 

                    <td id="tdProductName" runat="server"><asp:LinkButton ID="lbtnProductName" runat="server" Text="ProductName" CommandName="ProductName" OnCommand="lbtnSort_Command"></asp:LinkButton><asp:Label ID="lblProductName" runat="server" Visible="false"></asp:Label></td> 

                    <td id="tdSupplierID" runat="server"><asp:LinkButton ID="lbtnSupplierID" runat="server" Text="SupplierID" CommandName="SupplierID" OnCommand="lbtnSort_Command"></asp:LinkButton><asp:Label ID="lblSupplierID" runat="server" Visible="false"></asp:Label></td> 

                    <td id="tdCategoryID" runat="server"><asp:LinkButton ID="lbtnCategoryID" runat="server" Text="CategoryID" CommandName="CategoryID" OnCommand="lbtnSort_Command"></asp:LinkButton><asp:Label ID="lblCategoryID" runat="server" Visible="false"></asp:Label></td> 

                    <td id="tdQuantityPerUnit" runat="server"><asp:LinkButton ID="lbtnQuantityPerUnit" runat="server" Text="QuantityPerUnit" CommandName="QuantityPerUnit" OnCommand="lbtnSort_Command"></asp:LinkButton><asp:Label ID="lblQuantityPerUnit" runat="server" Visible="false"></asp:Label></td> 

                    <td id="tdUnitPrice" runat="server"><asp:LinkButton ID="lbtnUnitPrice" runat="server" Text="UnitPrice" CommandName="UnitPrice" OnCommand="lbtnSort_Command"></asp:LinkButton><asp:Label ID="lblUnitPrice" runat="server" Visible="false"></asp:Label></td> 

                    <td id="tdUnitsInStock" runat="server"><asp:LinkButton ID="lbtnUnitsInStock" runat="server" Text="UnitsInStock" CommandName="UnitsInStock" OnCommand="lbtnSort_Command"></asp:LinkButton><asp:Label ID="lblUnitsInStock" runat="server" Visible="false"></asp:Label></td> 

                    <td id="tdUnitsOnOrder" runat="server"><asp:LinkButton ID="lbtnUnitsOnOrder" runat="server" Text="UnitsOnOrder" CommandName="UnitsOnOrder" OnCommand="lbtnSort_Command"></asp:LinkButton><asp:Label ID="lblUnitsOnOrder" runat="server" Visible="false"></asp:Label></td> 

                    <td id="tdReorderLevel" runat="server"><asp:LinkButton ID="lbtnReorderLevel" runat="server" Text="ReorderLevel" CommandName="ReorderLevel" OnCommand="lbtnSort_Command"></asp:LinkButton><asp:Label ID="lblReorderLevel" runat="server" Visible="false"></asp:Label></td> 

                    <td id="tdDiscontinued" runat="server"><asp:LinkButton ID="lbtnDiscontinued" runat="server" Text="Discontinued" CommandName="Discontinued" OnCommand="lbtnSort_Command"></asp:LinkButton><asp:Label ID="lblDiscontinued" runat="server" Visible="false"></asp:Label></td> 

                </tr> 

            </HeaderTemplate> 

            <ItemTemplate> 

                <tr> 

                    <td id="tdSelect" runat="server"><asp:CheckBox ID="chkSelect" runat="server" /></td> 

                    <td><asp:Label ID="lblProductID" runat="server" Text='<%# Eval("ProductID") %>'></asp:Label></td> 

                    <td><asp:Label ID="lblProductName" runat="server" Text='<%# Eval("ProductName") %>'></asp:Label></td> 

                    <td><asp:Label ID="lblSupplierID" runat="server" Text='<%# Eval("SupplierID") %>'></asp:Label></td> 

                    <td><asp:Label ID="lblCategoryID" runat="server" Text='<%# Eval("CategoryID") %>'></asp:Label></td> 

                    <td><asp:Label ID="lblQuantityPerUnit" runat="server" Text='<%# Eval("QuantityPerUnit") %>'></asp:Label></td> 

                    <td><asp:Label ID="lblUnitPrice" runat="server" Text='<%# Eval("UnitPrice") %>'></asp:Label></td> 

                    <td><asp:Label ID="lblUnitsInStock" runat="server" Text='<%# Eval("UnitsInStock") %>'></asp:Label></td> 

                    <td><asp:Label ID="lblUnitsOnOrder" runat="server" Text='<%# Eval("UnitsOnOrder") %>'></asp:Label></td> 

                    <td><asp:Label ID="lblReorderLevel" runat="server" Text='<%# Eval("ReorderLevel") %>'></asp:Label></td> 

                    <td><asp:CheckBox ID="chkDiscontinued" runat="server" Checked='<%# Eval("Discontinued") %>' Enabled="false" /></td> 

                </tr> 

            </ItemTemplate> 

            <FooterTemplate> 

                </table> 

            </FooterTemplate> 

        </asp:Repeater> 

        <asp:Button ID="btnDelete" runat="server" Text="删除" onclick="btnDelete_Click" /> 

    </div> 

    </form> 

</body> 

</html>

后台代码:



using System; 

using System.Collections; 

using System.Configuration; 

using System.Data; 

using System.Linq; 

using System.Web; 

using System.Web.Security; 

using System.Web.UI; 

using System.Web.UI.HtmlControls; 

using System.Web.UI.WebControls; 

using System.Web.UI.WebControls.WebParts; 

using System.Xml.Linq; 

using System.Data.SqlClient;



public partial class RepeaterPagingSortingDelete : System.Web.UI.Page 

{ 

    //每页显示的最多记录的条数 

    private int pageSize = 10; 

    //当前页号 

    private int currentPageNumber; 

    //排序表达式 

    private string sortExpression = string.Empty; 

    //排序方向 

    private string sortDirection = string.Empty; 

    //显示数据的总条数 

    private static int rowCount; 

    //总页数 

    private static int pageCount;



    protected void Page_Load(object sender, EventArgs e) 

    { 

        if (!IsPostBack) 

        { 

            SqlConnection cn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ConnectionString); 

            SqlCommand cmd = new SqlCommand("GetProductsCount", cn); 

            cmd.CommandType = CommandType.StoredProcedure; 

            cn.Open(); 

            rowCount = (int)cmd.ExecuteScalar(); 

            cn.Close(); 

            pageCount = (rowCount - 1) / pageSize + 1; 

            currentPageNumber = 1; 

            for (int i = 1; i <= pageCount; i++) 

            { 

                dropPage.Items.Add(new ListItem(i.ToString(), i.ToString())); 

            } 

            dropPage.SelectedValue = dropPage.Items.FindByValue(currentPageNumber.ToString()).Value; 

            Query(); 

        } 

        sortExpression = ViewState["sortExpression"].ToString(); 

        sortDirection = ViewState["sortDirection"].ToString(); 

        currentPageNumber = Convert.ToInt32(ViewState["currentPageNumber"]); 

    }



    private void Query() 

    { 

        SetButton(currentPageNumber); 

        SqlConnection cn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ConnectionString); 

        SqlCommand cmd = new SqlCommand("GetProductsByPage", cn); 

        cmd.CommandType = CommandType.StoredProcedure; 

        cmd.Parameters.AddWithValue("@sortExpression", sortExpression + " " + sortDirection); 

        cmd.Parameters.AddWithValue("@pageNumber", currentPageNumber); 

        cmd.Parameters.AddWithValue("@pageSize", pageSize); 

        cn.Open(); 

        rptProducts.DataSource = cmd.ExecuteReader(); 

        rptProducts.DataBind(); 

        cn.Close(); 

        lblMessage.Text = "共找到" + rowCount + "条记录, 当前第" + currentPageNumber + "/" + pageCount + "页"; 

        Save(); 

    }



    protected void lbtnPage_Command(object sender, CommandEventArgs e) 

    { 

        switch (e.CommandName) 

        { 

            case "First": 

                currentPageNumber = 1; 

                break; 

            case "Previous": 

                currentPageNumber = (int)ViewState["currentPageNumber"] - 1 > 1 ? (int)ViewState["currentPageNumber"] - 1 : 1; 

                break; 

            case "Next": 

                currentPageNumber = (int)ViewState["currentPageNumber"] + 1 < pageCount ? (int)ViewState["currentPageNumber"] + 1 : pageCount; 

                break; 

            case "Last": 

                currentPageNumber = pageCount; 

                break; 

        } 

        dropPage.SelectedValue = dropPage.Items.FindByValue(currentPageNumber.ToString()).Value; 

        Query(); 

    }



    protected void lbtnSort_Command(object sender, CommandEventArgs e) 

    { 

        if (e.CommandName != ViewState["sortExpression"].ToString()) 

        { 

            sortDirection = "ASC"; 

        } 

        else 

        { 

            if (sortDirection == "ASC") 

            { 

                sortDirection = "DESC"; 

            } 

            else if (sortDirection == "DESC" || sortDirection == string.Empty) 

            { 

                sortDirection = "ASC"; 

            } 

        } 

        sortExpression = e.CommandName; 

        Query(); 

    }



    protected void dropPage_SelectedIndexChanged(object sender, EventArgs e) 

    { 

        currentPageNumber = int.Parse(dropPage.SelectedValue); 

        Query(); 

    }



    private void SetButton(int currentPageNumber) 

    { 

        lbtnFirst.Enabled = currentPageNumber != 1; 

        lbtnPrevious.Enabled = currentPageNumber != 1; 

        lbtnNext.Enabled = currentPageNumber != pageCount; 

        lbtnLast.Enabled = currentPageNumber != pageCount; 

    }



    private void Save() 

    { 

        ViewState["currentPageNumber"] = currentPageNumber; 

        ViewState["sortExpression"] = sortExpression; 

        ViewState["sortDirection"] = sortDirection; 

    }



    protected void rptProducts_ItemCreated(object sender, RepeaterItemEventArgs e) 

    { 

        if (e.Item.ItemType == ListItemType.Header) 

        { 

            if (!string.IsNullOrEmpty(sortDirection)) 

            { 

                Label lblSort = new Label(); 

                lblSort.EnableTheming = false; 

                lblSort.Font.Name = "webdings"; 

                lblSort.Font.Size = FontUnit.Small; 

                lblSort.Text = sortDirection == "ASC" ? "5" : "6"; 

                (e.Item.FindControl("td" + sortExpression) as HtmlTableCell).Controls.Add(lblSort); 

            } 

        } 

    } 

    protected void btnDelete_Click(object sender, EventArgs e) 

    { 

        CheckBox chkSelect; 

        Label lblProductID; 

        foreach (RepeaterItem item in rptProducts.Items) 

        { 

            chkSelect = item.FindControl("chkSelect") as CheckBox; 

            if (chkSelect != null && chkSelect.Checked) 

            { 

                lblProductID = item.FindControl("lblProductID") as Label; 

                //Response.Write(lblProductID.Text); 

                //可以在这里完成删除逻辑 

            } 

        } 

    }



    protected void rptProducts_ItemDataBound(object sender, RepeaterItemEventArgs e) 

    { 

        if (e.Item.ItemType == ListItemType.Header) 

        {  

            CheckBox chkAll = e.Item.FindControl("chkAll") as CheckBox; 

            chkAll.Attributes.Add("onclick", "chooseAll('" + chkAll.ClientID + "')");         

        }



        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) 

        { 

            CheckBox chkSelect = e.Item.FindControl("chkSelect") as CheckBox; 

            chkSelect.Attributes.Add("onclick", "highLightSelected(this);"); 

        } 

    } 

}

 

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