asp.net更新指定記錄的方法

更新時間：2014年11月08日 11:14:48 投稿：shichen2014

這篇文章主要介紹了asp.net更新指定記錄的方法,涉及針對指定ID調(diào)用update語句的方法,是非常實用的技巧,需要的朋友可以參考下

本文實例講述了asp.net更新指定記錄的方法。分享給大家供大家參考。具體方法如下：

我們先來看html頁面：

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

 <form id="form1" runat="server">

        &nbsp;

        <div style="text-align: center">

            <table style="width: 302px; height: 246px;">

                <tr>

                    <td colspan="2" style="width: 496px">

                        <asp:Label ID="Label2" runat="server" Text="更新指定數(shù)據(jù)" Font-Bold="True" ForeColor="Blue" Width="132px"></asp:Label></td>

                </tr>

                <tr>

                    <td colspan="2" style="width: 496px">

        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4" Font-Size="Smaller" ForeColor="#333333" GridLines="None">

            <Columns>

                <asp:BoundField DataField="商品編號" HeaderText="商品編號" />

                <asp:BoundField DataField="商品名稱" HeaderText="商品名稱" />

                <asp:BoundField DataField="商品數(shù)量" HeaderText="商品數(shù)量" />

                <asp:BoundField DataField="商品單價" HeaderText="商品單價" />

                <asp:HyperLinkField DataNavigateUrlFields="商品編號" DataNavigateUrlFormatString="Default.aspx?商品編號={0}"

                    HeaderText="更新" Text="更新" />

            </Columns>

            <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />

            <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />

            <EditRowStyle BackColor="#999999" />

            <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />

            <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />

            <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />

            <AlternatingRowStyle BackColor="White" ForeColor="#284775" />

        </asp:GridView>

                    </td>

                </tr>

                <tr>

                    <td colspan="2" style="width: 496px" align="center">

                        &nbsp;</td>

                </tr>

                <tr>

                    <td colspan="2" style="width: 496px">

                        <asp:Label ID="Label3" runat="server" Font-Size="Smaller" Text="商品名稱：" Width="65px"></asp:Label><asp:TextBox ID="TxtName" runat="server"></asp:TextBox>

                    </td>

                </tr>

                <tr>

                    <td colspan="2">

                        <asp:Label ID="Label4" runat="server" Font-Size="Smaller" Text="商品數(shù)量："></asp:Label>

        <asp:TextBox ID="TxtNum" runat="server"></asp:TextBox></td>

                </tr>

                <tr>

                    <td colspan="2">

                        <asp:Label ID="Label5" runat="server" Font-Size="Smaller" Text="商品單價："></asp:Label>

        <asp:TextBox ID="TxtPrice" runat="server"></asp:TextBox></td>

                </tr>

                <tr>

                    <td colspan="2" style="width: 496px">

                        &nbsp;<asp:Button ID="BtnUpdate" runat="server" OnClick="BtnUpdate_Click" Text="更新" Width="55px" /></td>

                </tr>

            </table>

        </div>

    </form>

由上面頁面提交過來的數(shù)據(jù)我們接受然后利用sql執(zhí)行更新數(shù)據(jù)庫

復(fù)制代碼代碼如下:

View Code

using System;

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 _Default : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!Page.IsPostBack)//首次執(zhí)行頁面時

        {

            GridViewBind();//綁定自定義方法GridViewBind

            if (Request.QueryString["商品編號"] != null)//判斷，如果可以獲取到id的值，則執(zhí)行以下操作

            {

                SqlConnection con = new SqlConnection(ConfigurationSettings.AppSettings["strCon"]);

                con.Open();

                SqlDataAdapter ada = new SqlDataAdapter("select * from tb_shopping05 where 商品編號=" + Request.QueryString["商品編號"] + "", con);

                DataSet ds = new DataSet();

                ada.Fill(ds, "tb_shopping05");

                DataRowView drv = ds.Tables["tb_shopping05"].DefaultView[0];

                this.TxtName.Text = drv["商品名稱"].ToString();

                this.TxtNum.Text = drv["商品數(shù)量"].ToString();

                this.TxtPrice.Text = drv["商品單價"].ToString();

            }

        }

    }

    public void GridViewBind()//綁定GridView控件的自定義方法

    {

        SqlConnection con = new SqlConnection(ConfigurationSettings.AppSettings["strCon"]);

        con.Open();

        SqlDataAdapter ada = new SqlDataAdapter("select * from tb_shopping05", con);

        DataSet ds = new DataSet();

        ada.Fill(ds);

        GridView1.DataSource = ds;

        GridView1.DataBind();

        con.Close();

    }

    protected void BtnUpdate_Click(object sender, EventArgs e)

    {

        try

        {

            SqlConnection con = new SqlConnection(ConfigurationSettings.AppSettings["strCon"]);

            con.Open();

            SqlCommand com = new SqlCommand("update tb_shopping05 set 商品名稱='" + this.TxtName.Text + "',商品數(shù)量='" + this.TxtNum.Text + "',商品單價='" + this.TxtPrice.Text + "' where 商品編號=" + Request["商品編號"], con);

            com.ExecuteNonQuery();

            GridViewBind();

            Response.Write("<script language=javascript>alert('恭喜您！信息更新成功！')</script>");

        }

        catch

        {

            Response.Write("<script language=javascript>alert('很遺憾！信息更新失??！')</script>");

        }

    }

}