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ASP.NET
%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default6.aspx.cs" Inherits="Default6" %> <!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></title> <style type="text/css"> .style3 { height: 26px; } .style4 { height: 26px; width: 144px; } </style> </head> <body> <form id2="form1" runat="server"> <div> <asp:HiddenField ID="hfCustomerId" runat="server" /> <table style="width: 1000px"> <% foreach (var c in this.item()) { %> <tr> <td class="style3"> <label><%=c.countryid%></label></td> <td class="style3"> <input type="text" value='<%=c.countryname %>' /></td> <td class="style3"> <input type="text" value='<%=c.photo%>' /> </td> <td class="style3"> <input type="radio" <%=c.countryname== "india" ? "checked" : "" %> /></td> <td class="style3"> <input type="checkbox" <%=c.countryname!= "india" ? "checked" : "" %> /></td> <td class="style4"> <a href='countrydetail.aspx?idno=<%=c.countryid %>'>country detaıl</a> </td> <td> <asp:Button ID="Button1" runat="server" Text="Button" BackColor="#FF6699" Width="500px" onclick="ON" /> </tr> <% } %> </table> </div> <hr /> <div> <table> <tr> <td> <label><%=countryidx%></label> </td> </tr> <tr> <td> <input type="text" value='<%=ulkeismix%>' /> </td> </tr> <tr> <td> <input type="text" value='<%=photox%>' /> </td> </tr> </table> </div> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"> </script> <script type="text/javascript"> $(function () { $('.View').on('click', function () { var id = $(this).closest('tr').find('td').eq(0).text().trim(); $('[id*=hfCustomerId]').val(id); }); }); </script> </form> </body> </html>
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そのようなコードがあります。 リストから選択したレコードを同じページに移動できません。 の hfcustomer
変数は値を受け取りません。 何らかの理由でコードを修正するにはどうすればよいですか?
私が試したこと:
C#
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Configuration; using System.Data.SqlClient; public partial class Default6 : System.Web.UI.Page { public int countryidx; public string photox; public string ulkeismix; public List<Country> item() { string sqlStatment = "select * from Country"; string constr = System.Configuration.ConfigurationManager. ConnectionStrings["constr"].ConnectionString; using (System.Data.SqlClient.SqlConnection con = new System.Data.SqlClient.SqlConnection(constr)) { using (System.Data.SqlClient.SqlCommand cmd = new System.Data.SqlClient.SqlCommand(sqlStatment, con)) { cmd.Connection.Open(); System.Data.SqlClient.SqlDataReader reader = cmd.ExecuteReader(); List<Country> emp = new List<Country>(); while (reader.Read()) { Country country = new Country(); country.countryid = Convert.ToInt32(reader.GetValue(0)); country.countryname = reader.GetValue(2).ToString(); country.photo = reader.GetValue(1).ToString(); emp.Add(country); } reader.Close(); cmd.Connection.Close(); return emp; } } } public class Country { public int countryid { get; set; } public string countryname { get; set; } public string photo { get; set; } } public List<Country> Item { get; set; } protected void Page_Load(object sender, EventArgs e) { if (!this.IsPostBack) { if (!this.IsPostBack) { this.Item = this.item(); } } } protected void ON(object sender, EventArgs e) { string id = Request.Form[hfCustomerId.UniqueID].Trim(); string sqlStatment = "SELECT * FROM country WHERE countryid=@Id"; string constr = System.Configuration.ConfigurationManager. ConnectionStrings["constr"].ConnectionString; using (System.Data.SqlClient.SqlConnection con = new System.Data.SqlClient.SqlConnection(constr)) { using (System.Data.SqlClient.SqlCommand cmd = new System.Data.SqlClient.SqlCommand(sqlStatment, con)) { cmd.Parameters.AddWithValue("@Id", id); cmd.Connection.Open(); System.Data.SqlClient.SqlDataReader reader = cmd.ExecuteReader(); if (reader.Read()) { countryidx = Convert.ToInt32(reader.GetValue(0)); ulkeismix= reader.GetValue(1).ToString(); photox = reader.GetValue(2).ToString(); } reader.Close(); cmd.Connection.Close(); } } } }
解決策 1
The problem is solved, the error is due to the missing button click sentence, it should be written like this, the code is completely correct. <td> <asp:Button ID="btnView" CssClass="View" runat="server" Text="View" OnClick="ON" /> </td> </tr>
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