ScriptManager.AsyncPostBackErrorMessage Propriété
Définition
Important
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Obtient ou définit le message d'erreur envoyé au client quand une exception de serveur non gérée se produit pendant une publication (postback) asynchrone.
public:
property System::String ^ AsyncPostBackErrorMessage { System::String ^ get(); void set(System::String ^ value); };public string AsyncPostBackErrorMessage { get; set; }member this.AsyncPostBackErrorMessage : string with get, setPublic Property AsyncPostBackErrorMessage As StringValeur de propriété
Message d’erreur. La valeur par défaut est une chaîne vide ("").
Exemples
L’exemple suivant montre comment gérer l’événement AsyncPostBackError pour définir la AsyncPostBackErrorMessage propriété (qui est envoyée au client) sur le message d’erreur d’exception du serveur.
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void ErrorProcessClick_Handler(object sender, EventArgs e)
{
// This handler demonstrates an error condition. In this example
// the server error gets intercepted on the client and an alert is shown.
throw new ArgumentException();
}
protected void SuccessProcessClick_Handler(object sender, EventArgs e)
{
// This handler demonstrates no server side exception.
UpdatePanelMessage.Text = "The asynchronous postback completed successfully.";
}
// <Snippet3>
protected void ScriptManager1_AsyncPostBackError(object sender, AsyncPostBackErrorEventArgs e)
{
ScriptManager1.AsyncPostBackErrorMessage = e.Exception.Message;
}
// </Snippet3>
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>PageRequestManager endRequestEventArgs Example</title>
<style type="text/css">
body {
font-family: Tahoma;
}
#AlertDiv{
left: 40%; top: 40%;
position: absolute; width: 200px;
padding: 12px;
border: #000000 1px solid;
background-color: white;
text-align: left;
visibility: hidden;
z-index: 99;
}
#AlertButtons{
position: absolute;
right: 5%;
bottom: 5%;
}
</style>
</head>
<body id="bodytag">
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server"
OnAsyncPostBackError="ScriptManager1_AsyncPostBackError">
</asp:ScriptManager>
<script type="text/javascript" language="javascript">
var divElem = 'AlertDiv';
var messageElem = 'AlertMessage';
var errorMessageAdditional = 'Please try again.';
var bodyTag = 'bodytag';
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);
function ToggleAlertDiv(visString)
{
if (visString == 'hidden')
{
$get(bodyTag).style.backgroundColor = 'white';
}
else
{
$get(bodyTag).style.backgroundColor = 'gray';
}
var adiv = $get(divElem);
adiv.style.visibility = visString;
}
function ClearErrorState() {
$get(messageElem).innerHTML = '';
ToggleAlertDiv('hidden');
}
function EndRequestHandler(sender, args)
{
if (args.get_error() != undefined && args.get_error().httpStatusCode == '500')
{
var errorMessage = args.get_error().message
args.set_errorHandled(true);
ToggleAlertDiv('visible');
$get(messageElem).innerHTML = '"' +
errorMessage + '" ' + errorMessageAdditional;
}
}
</script>
<asp:UpdatePanel runat="Server" UpdateMode="Conditional" ID="UpdatePanel1">
<ContentTemplate>
<asp:Panel ID="Panel1" runat="server" GroupingText="Update Panel">
<asp:Label ID="UpdatePanelMessage" runat="server" />
<br />
Last update:
<%= DateTime.Now.ToString() %>
.
<br />
<asp:Button runat="server" ID="Button1" Text="Submit Successful Async Postback"
OnClick="SuccessProcessClick_Handler" OnClientClick="ClearErrorState()" />
<asp:Button runat="server" ID="Button2" Text="Submit Async Postback With Error"
OnClick="ErrorProcessClick_Handler" OnClientClick="ClearErrorState()" />
<br />
</asp:Panel>
</ContentTemplate>
</asp:UpdatePanel>
<div id="AlertDiv">
<div id="AlertMessage">
</div>
<br />
<div id="AlertButtons" >
<input id="OKButton" type="button" value="OK"
runat="server" onclick="ClearErrorState()" />
</div>
</div>
</form>
</body>
</html>
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub ErrorProcessClick_Handler(ByVal sender As Object, ByVal e As EventArgs)
'This handler demonstrates an error condition. In this example
' the server error gets intercepted on the client and an alert is shown.
Throw New ArgumentException()
End Sub
Protected Sub SuccessProcessClick_Handler(ByVal sender As Object, ByVal e As EventArgs)
'This handler demonstrates no server side exception.
UpdatePanelMessage.Text = "The asynchronous postback completed successfully."
End Sub
' <Snippet3>
Protected Sub ScriptManager1_AsyncPostBackError(ByVal sender As Object, ByVal e As System.Web.UI.AsyncPostBackErrorEventArgs)
ScriptManager1.AsyncPostBackErrorMessage = e.Exception.Message
End Sub
' </Snippet3>
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>PageRequestManager endRequestEventArgs Example</title>
<style type="text/css">
body {
font-family: Tahoma;
}
#AlertDiv{
left: 40%; top: 40%;
position: absolute; width: 200px;
padding: 12px;
border: #000000 1px solid;
background-color: white;
text-align: left;
visibility: hidden;
z-index: 99;
}
#AlertButtons{
position: absolute;
right: 5%;
bottom: 5%;
}
</style>
</head>
<body id="bodytag">
<form id="form1" runat="server">
<div>
<asp:ScriptManager runat="server" ID="ScriptManager1"
OnAsyncPostBackError="ScriptManager1_AsyncPostBackError">
</asp:ScriptManager>
<script type="text/javascript" language="javascript">
var divElem = 'AlertDiv';
var messageElem = 'AlertMessage';
var errorMessageAdditional = 'Please try again.';
var bodyTag = 'bodytag';
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);
function ToggleAlertDiv(visString)
{
if (visString == 'hidden')
{
$get(bodyTag).style.backgroundColor = 'white';
}
else
{
$get(bodyTag).style.backgroundColor = 'gray';
}
var adiv = $get(divElem);
adiv.style.visibility = visString;
}
function ClearErrorState() {
$get(messageElem).innerHTML = '';
ToggleAlertDiv('hidden');
}
function EndRequestHandler(sender, args)
{
if (args.get_error() != undefined && args.get_error().httpStatusCode == '500')
{
var errorMessage = args.get_error().message
args.set_errorHandled(true);
ToggleAlertDiv('visible');
$get(messageElem).innerHTML = '"' +
errorMessage + '" ' + errorMessageAdditional;
}
}
</script>
<asp:UpdatePanel runat="Server" UpdateMode="Conditional" ID="UpdatePanel1">
<ContentTemplate>
<asp:Panel ID="Panel1" runat="server" GroupingText="Update Panel">
<asp:Label ID="UpdatePanelMessage" runat="server" />
<br />
Last update:
<%= DateTime.Now.ToString() %>
.
<br />
<asp:Button runat="server" ID="Button1" Text="Submit Successful Async Postback"
OnClick="SuccessProcessClick_Handler" OnClientClick="ClearErrorState()" />
<asp:Button runat="server" ID="Button2" Text="Submit Async Postback With Error"
OnClick="ErrorProcessClick_Handler" OnClientClick="ClearErrorState()" />
<br />
</asp:Panel>
</ContentTemplate>
</asp:UpdatePanel>
<div id="AlertDiv">
<div id="AlertMessage">
</div>
<br />
<div id="AlertButtons" >
<input id="OKButton" type="button" value="OK"
runat="server" onclick="ClearErrorState()" />
</div>
</div>
</form>
</body>
</html>
Remarques
L’événement AsyncPostBackError est déclenché en cas d’erreur de page pendant les publications asynchrones. La façon dont les erreurs sur le serveur sont envoyées au client dépend de la AllowCustomErrorsRedirect propriété, de la AsyncPostBackErrorMessage propriété et de la section erreurs personnalisées du fichier Web.config.
S’applique à
Voir aussi
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