[ASP.NET C# - XML] - Ajout

**Medmidou** · 30/04/2009, 02h35

Bonsoir tout le monde,

J'ai suit un tutorial pour créer une page ASP .NET qui sert à écrire dans un fichier XML,
Je n'ai aucune erreur lors de l'éxécution mais rien n'est écrit sur ma page XML!!!
En tout cas il me semble que le problème est au niveau de l'entete de la page .aspx

Merci pour l'aide,

ajoutxml.aspx

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<%@ Page Language="C#" AutoEventWireup="false" CodeBehind="ajoutxml.aspx.cs" Inherits="xml2.ajoutxml" %>
 
<!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 id="Head1" runat="server">
    <title>Ajout XML</title>
    <meta http-equiv="Content-Type" content="text/html; charset=windows-1252" />
    <meta content="Microsoft Visual Studio 7.0" name="GENERATOR" />
    <meta content="C#" name="CODE_LANGUAGE" />
    <meta content="JavaScript (ECMAScript)" name="vs_defaultClientScript" />
    <meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema" />    
</head>
<body>
    <form id="EditCustomer" runat="server" method="post">
    <div>
        <table width="640">
            <tbody>
                <tr>
                    <td align="middle" colspan="2">
                        <p>
                            <font face="Verdana,Arial" color="#3300ff" size="4">Ajout d'un champs</font>
                        </p>
                    </td>
                </tr>
                <tr>
                    <td align="right" width="30%">
                        <font face="Verdana,Arial" color="#3300ff" size="2">ID: </font></td>
                    <td>
                        <asp:TextBox id="ID" runat="server" Width="50px" MaxLength="3"></asp:TextBox>
                        <asp:RequiredFieldValidator id="RequiredFieldValidator0" runat="server" ErrorMessage="*" ControlToValidate="ID"></asp:RequiredFieldValidator>
                    </td>
                </tr>
                <tr>
                    <td align="right" width="30%">
                        <font face="Verdana,Arial" color="#3300ff" size="2">Titre: </font></td>
                    <td>
                        <asp:TextBox id="Titre" runat="server" Width="259px" MaxLength="50"></asp:TextBox>
                        <asp:RequiredFieldValidator id="RequiredFieldValidator1" runat="server" ErrorMessage="*" ControlToValidate="Titre"></asp:RequiredFieldValidator>
                    </td>
                </tr>
                <tr>
                    <td align="right" width="30%">
                        <font face="Verdana,Arial" color="#3300ff" size="2">Artist: </font></td>
                    <td>
                        <asp:TextBox id="Artist" runat="server" Width="259px" MaxLength="50"></asp:TextBox>
                        <asp:RequiredFieldValidator id="RequiredFieldValidator2" runat="server" ErrorMessage="*" ControlToValidate="Artist"></asp:RequiredFieldValidator>
                        <p>
                        </p>
                    </td>
                </tr>
                <tr>
                    <td align="right" width="30%">
                        <font face="Verdana,Arial" color="#3300ff" size="2">country: </font></td>
                    <td>
                        <asp:TextBox id="country" runat="server" Width="259px" MaxLength="50"></asp:TextBox>
                        <asp:RequiredFieldValidator id="RequiredFieldValidator3" runat="server" ErrorMessage="*" ControlToValidate="country"></asp:RequiredFieldValidator>
                        <p>
                        </p>
                    </td>
                </tr>
                <tr>
                    <td align="right" width="30%">
                        <font face="Verdana,Arial" color="#3300ff" size="2">company: </font></td>
                    <td>
                        <asp:TextBox id="company" runat="server" Width="259px" MaxLength="50"></asp:TextBox>
                        <asp:RequiredFieldValidator id="RequiredFieldValidator4" runat="server" ErrorMessage="*" ControlToValidate="company"></asp:RequiredFieldValidator>
                        <p>
                        </p>
                    </td>
                </tr>
                <tr>
                    <td align="right" width="30%">
                        <font face="Verdana,Arial" color="#3300ff" size="2">price: </font></td>
                    <td>
                        <asp:TextBox id="price" runat="server" Width="259px" MaxLength="50"></asp:TextBox>
                        <asp:RequiredFieldValidator id="RequiredFieldValidator5" runat="server" ErrorMessage="*" ControlToValidate="price"></asp:RequiredFieldValidator>
                        <p>
                        </p>
                    </td>
                </tr>
                <tr>
                    <td align="right" width="30%">
                        <font face="Verdana,Arial" color="#3300ff" size="2">year: </font></td>
                    <td>
                        <asp:TextBox id="year" runat="server" Width="259px" MaxLength="50"></asp:TextBox>
                        <asp:RequiredFieldValidator id="RequiredFieldValidator6" runat="server" ErrorMessage="*" ControlToValidate="year"></asp:RequiredFieldValidator>
                        <p>
                        </p>
                    </td>
                </tr>
                <tr>
                    <td align="middle" colspan="2">
                        <asp:Button id="BtnValid" runat="server" Text="Valid"></asp:Button>
                        &nbsp;
                        <asp:Button id="BtnCancel" runat="server" Width="50px" Text="Cancel" CausesValidation="False"></asp:Button>
                    </td>
                </tr>
            </tbody>
        </table>  
                <p>
        </p>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        <p>
            <asp:Label id="Label1" runat="server" forecolor="Red" font-names="Verdana,Arial"></asp:Label>
        </p>
        <p>
            <asp:Label id="Label2" runat="server" forecolor="black" font-names="Verdana,Arial"></asp:Label>
        </p>
 
</div>
</form>
 <!-- Insert content here -->
</body>
</html>

ajoutxml.aspx.cs

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using System;
using System.Collections.Generic;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Xml;
 
namespace xml2
{
    public partial class ajoutxml : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
 
        }
 
        public class Ajout : System.Web.UI.Page
        {
 
            protected System.Web.UI.WebControls.Label Label1;
            protected System.Web.UI.WebControls.Label Label2;
            protected System.Web.UI.WebControls.Repeater repeater1;
            protected System.Web.UI.WebControls.TextBox ID;
            protected System.Web.UI.WebControls.TextBox Titre;
            protected System.Web.UI.WebControls.TextBox Artist;
            protected System.Web.UI.WebControls.TextBox country;
            protected System.Web.UI.WebControls.TextBox company;
            protected System.Web.UI.WebControls.TextBox price;
            protected System.Web.UI.WebControls.TextBox year;
            protected System.Web.UI.WebControls.Button BtnValid;
            protected System.Web.UI.WebControls.Button BtnCancel;
 
 
            public int ID_LIBELLE
            {
                get { return (int)ViewState["ID_LIB"]; }
                set { ViewState["ID_LIB"] = value; }
            }
 
            public Ajout()
            {
                Page.Init += new System.EventHandler(Page_Init);
            }
 
            private void doDataBind()
            {
 
                try
                {
                    this.DataBind();
 
                }
                catch (System.Exception eLoad)
                {
                    // Handle it...
                    Label1.Text = eLoad.Message;
 
                }
 
            }
 
            private void Page_Load(object sender, System.EventArgs e)
            {
                if (!(this.IsPostBack))
                {
                    doDataBind();
                }
 
 
            }
            private void Page_Init(object sender, EventArgs e)
            {
                InitializeComponent();
            }
 
            #region Web Form Designer generated code
 
            private void InitializeComponent()
            {
                this.BtnValid.Click += new System.EventHandler(this.BtnValid_Click);
                this.BtnCancel.Click += new System.EventHandler(this.BtnCancel_Click);
                this.Load += new System.EventHandler(this.Page_Load);
 
            }
            #endregion
 
            private void BtnCancel_Click(object sender, System.EventArgs e)
            {
                Response.Redirect("xmlrepeater.aspx");
            }
 
            private void BtnValid_Click(object sender, System.EventArgs e)
            {
                XmlDocument xmlDoc = new XmlDocument();
 
                if (this.IsValid)
                {
 
                    try
                    {
                        xmlDoc.Load(Server.MapPath("cdcatalog.xml"));
 
                        // Create a new <Cd> element and add it to the root node
                        XmlElement parentNode = xmlDoc.CreateElement("cd");
 
                        // Set attribute name and value!
 
                        parentNode.SetAttribute("ID", ID.Text);
 
                        xmlDoc.DocumentElement.PrependChild(parentNode);
 
                        // Create the required nodes
                        XmlElement titleNode = xmlDoc.CreateElement("title");
                        XmlElement artistNode = xmlDoc.CreateElement("artist");
                        XmlElement countryNode = xmlDoc.CreateElement("country");
                        XmlElement companyNode = xmlDoc.CreateElement("company");
                        XmlElement priceNode = xmlDoc.CreateElement("price");
                        XmlElement yearNode = xmlDoc.CreateElement("year");
 
                        // retrieve the text
                        XmlText titleText = xmlDoc.CreateTextNode(Titre.Text);
                        XmlText artistText = xmlDoc.CreateTextNode(Artist.Text);
                        XmlText countryText = xmlDoc.CreateTextNode(country.Text);
                        XmlText companyText = xmlDoc.CreateTextNode(company.Text);
                        XmlText priceText = xmlDoc.CreateTextNode(price.Text);
                        XmlText yearText = xmlDoc.CreateTextNode(year.Text);
 
                        // append the nodes to the parentNode without the value
                        parentNode.AppendChild(titleNode);
                        parentNode.AppendChild(artistNode);
                        parentNode.AppendChild(countryNode);
                        parentNode.AppendChild(companyNode);
                        parentNode.AppendChild(priceNode);
                        parentNode.AppendChild(yearNode);
 
                        // save the value of the fields into the nodes
                        titleNode.AppendChild(titleText);
                        artistNode.AppendChild(artistText);
                        countryNode.AppendChild(countryText);
                        companyNode.AppendChild(companyText);
                        priceNode.AppendChild(priceText);
                        yearNode.AppendChild(yearText);
 
                        // Save to the XML file
                        XmlNodeList nodeList = xmlDoc.SelectNodes("/catalog/cd[@ID=" + ID.Text + "]");
 
                        if (nodeList.Count == 1)
                        {
                            xmlDoc.Save(Server.MapPath("cdcatalog.xml"));
                            Response.Redirect("xmlrepeater.aspx");
                        }
                        else
                        {
                            Response.Write("Impossible d'ajouter !!!, L'ID déja existant");
                        }
                        ID.Text = "";
                        Titre.Text = "";
                        Artist.Text = "";
                        country.Text = "";
                        company.Text = "";
                        price.Text = "";
                        year.Text = "";
 
                    }
                    catch (System.Exception eSave)
                    {
                        Label1.Text = eSave.Message;
                        //Label2.Text=message;
                    }
 
                }
 
 
            }
 
 
        }
 
 
 
    }
}

**Lyche** · 30/04/2009, 15h27

heu.. tu déclares des objets, mais tu n'en instancies aucun.

Ex :

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 protected System.Web.UI.WebControls.Button BtnCancel;

Tu affectes à BtnCancel un type Button. Mais nul part dans ton code, je lit la commande

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BtnCancel = new Button();

Juste pour info, au lieu de garder ta ligne

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 protected System.Web.UI.WebControls.Button BtnCancel;

Pourquoi ne met tu pas simplement

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protected Button BtnCancel;

Sachant qu'il y a dans tes using la ligne

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using System.Web.UI.WebControls;

Cordialement

[ASP.NET C# - XML] - Ajout

ASP.NET

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