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Dans le fichier de code suivant, j'ai écrit le code contextuel ajax modal sur la ligne no. 47 Et je reçois une erreur en disant qu'une seule instance de scriptManager peut être ajoutée à la page que je suis en train d'apprendre asp.net S'il vous plaît, aidez-moi à résoudre l'erreur.System.InvalidOperationException: Une seule instance d'un ScriptManager peut être ajoutée à la page
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Bags.aspx.cs" Inherits="Bags" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style>
.modalBackground {
background-color: black;
filter: alpha(opacity = 90) !important;
opacity: 0.6 !important;
z-index: 20;
}
.modalpopup {
padding: 20px 0px 24px 10px;
position: relative;
width: 450px;
height: 66px;
background-color: white;
border: 1px solid black;
}
</style>
</head>
<body>
<div>
<form id="RegistrationsForm" runat="server">
<asp:GridView CssClass="table table-bordered table-striped" ID="GridViewEntry" runat="server" AutoGenerateColumns="False" DataKeyNames="LID" OnSelectedIndexChanged="GridViewEntry_SelectedIndexChanged">
<Columns>
<asp:BoundField HeaderText="FULL NAME" DataField="full_name"></asp:BoundField>
<asp:BoundField HeaderText="Bag ID" DataField="LID"></asp:BoundField>
<asp:BoundField HeaderText="Tag ID" DataField="RFID"></asp:BoundField>
<asp:BoundField HeaderText="State" DataField="state"></asp:BoundField>
<asp:BoundField HeaderText="At" DataField="At"></asp:BoundField>
<asp:TemplateField HeaderText="Action">
<ItemTemplate>
<asp:Button ID="LostButton" runat="server"
CommandName="Lost"
CommandArgument="<%# ((GridViewRow) Container).RowIndex %>"
Text="Lost" CssClass="btn btn-sm btn-success" />
<cc1:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server"></cc1:ToolkitScriptManager>
<asp:Panel ID="Panel1" runat="server" CssClass="modalpopup">
Desription :
<br></br>
<asp:TextBox ID="Desription" runat="server" placeholder="Optional"></asp:TextBox>
<br></br>
<asp:Button ID="OK" runat="server" Text="OK" />
<asp:Button ID="Cancel" runat="server" Text="Cancel" />
</asp:Panel>
<cc1:ModalPopupExtender ID="ModalPopupExtender1" runat="server" CancelControlID="Cancel" OkControlID="OK" PopupControlID="Panel1" TargetControlID="LostButton" BackgroundCssClass="modalBackground"></cc1:ModalPopupExtender>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>
<div class='row'>
<div class='col-sm-12'>
<div class='alert alert-warning'>
<asp:Label ID="LblError" runat="server">No Information Found! Please Check Again Later!</asp:Label>
</div>
</div>
</div>
</EmptyDataTemplate>
</asp:GridView>
</form>
</div>
Bags.aspx.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Data;
public partial class Bags : System.Web.UI.Page
{
private SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["BAGTRACKConnectionString"].ConnectionString);
private int fid = 1;
protected void Page_Load(object sender, EventArgs e)
{
if ((HttpContext.Current.Session["username"] == null))
Response.Redirect("~/Login.aspx");
if (!IsPostBack)
{
if (Request.QueryString["ref_id"] != null)
{
fid = Convert.ToInt32(Request.QueryString["ref_id"]);
GVBind();
}
else
{
Response.Redirect("Dashboard.aspx");
}
}
}
protected void GVBind()
{
DataSet ds = new DataSet();
con.Open();
SqlCommand cmd = new SqlCommand("select CONCAT(P.fname,' ',P.lname) AS full_name , L.LID ,L.RFID ,S.state ,B.At_time as At from Flight F , Ticket T , Passenger P ,Luggage L , BagTrip B ,Status S where T.FID = F.FID and T.username = P.username and L.TID = T.TID and B.ReaderID = S.ReaderID and B.LID = L.LID and F.FID = @FID ", con);
cmd.Parameters.AddWithValue("@FID", fid);
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(ds);
con.Close();
GridViewEntry.DataSource = ds;
GridViewEntry.DataBind();
}
protected void GridViewEntry_SelectedIndexChanged(object sender, EventArgs e)
{
GridViewRow row = GridViewEntry.SelectedRow;
con.Open();
SqlCommand cmd = new SqlCommand("insert into LostRepository values(@LID,0,@desription,@time)", con);
cmd.Parameters.AddWithValue("@LID", row.Cells[1]);
cmd.Parameters.AddWithValue("@desription", (GridViewEntry.SelectedRow.FindControl("Desription") as TextBox).Text);
cmd.Parameters.AddWithValue("@FID", fid);
cmd.Parameters.AddWithValue("@time", DateTime.Now.TimeOfDay);
cmd.ExecuteNonQuery();
con.Close();
}
}
merci cette résolu mon problème –
Vous êtes les bienvenus !!!!! – csharpbd