我想调用我的VB页面中写的webmethod。为此我写了下面的代码。但是，它会直接进入 error 块并显示消息 undefined 。
function fnSaveReview(){
var content = new Object();
content.TableName = "BAChildProjects"
content.ColumnName = "cIsQCApproved"
content.ColumnValue = "Y"
content.Refcolumn = "vWorkSpaceId"
content.RefValue = $('#<%= HProjectId.ClientId%>').val();
var JsonString=JSON.stringify(content);
$.ajax({
type: "POST",
url: "frmBAProjectDefinition.aspx/UpdateFieldValues",
data: JsonString,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(data) {
alert('Data Reviewed Successfully.');
},
failure: function(error) {
alert(error);
},
error: function (data) {
debugger ;
alert(data.d);
}
});
}
<Web.Services.WebMethod()> _
Public Shared Function UpdateFieldValues(ByVal JSONString As String) As String
Dim objhelpDb As New WS_HelpDbTable.WS_HelpDbTable
Dim objLambda As New WS_Lambda.WS_Lambda
Dim eStr As String = String.Empty
Dim ds_Save As New DataSet
Try
ds_Save.Tables.Add(JsonConvert.DeserializeObject(JSONString, GetType(System.Data.DataTable)))
If Not objLambda.Save_UpdateFieldValues(WS_Lambda.DataObjOpenSaveModeEnum.DataObjOpenMode_Add, ds_Save, _
HttpContext.Current.Session(S_UserID), eStr) Then
Return False
Exit Function
End If
Return True
Catch ex As Exception
Return False
End Try
End Function
Object {readyState: 4, setRequestHeader: function, getAllResponseHeaders: function, getResponseHeader: function, overrideMimeType: function…}
abort: function (a){a=a||"abort",p&&p.abort(a),w(0,a);return this}
always: function (){return i.done.apply(i,arguments).fail.apply(i,arguments)}
complete: function (){if(c){var a=c.length;m(arguments),i?k=c.length:e&&e!==!0&&(j=a,n(e[0],e[1]))}return this}
done: function (){if(c){var a=c.length;m(arguments),i?k=c.length:e&&e!==!0&&(j=a,n(e[0],e[1]))}return this}
error: function (){if(c){var a=c.length;m(arguments),i?k=c.length:e&&e!==!0&&(j=a,n(e[0],e[1]))}return this}
fail: function (){if(c){var a=c.length;m(arguments),i?k=c.length:e&&e!==!0&&(j=a,n(e[0],e[1]))}return this}
getAllResponseHeaders: function (){return s===2?n:null}
getResponseHeader: function (a){var c;if(s===2){if(!o){o={};while(c=bJ.exec(n))o[c[1].toLowerCase()]=c[2]}c=o[a.toLowerCase()]}return c===b?null:c}
isRejected: function (){return!!e}
isResolved: function (){return!!e}
overrideMimeType: function (a){s||(d.mimeType=a);return this}
pipe: function (a,b,c){return f.Deferred(function(d){f.each({done:[a,"resolve"],fail:[b,"reject"],progress:[c,"notify"]},function(a,b){var c=b[0],e=b[1],g;f.isFunction(c)?i[a](function(){g=c.apply(this,arguments),g&&f.isFunction(g.promise)?g.promise().then(d.resolve,d.reject,d.notify):d[e+"With"](this===i?d:this,[g])}):i[a](d[e])})}).promise()}
progress: function (){if(c){var a=c.length;m(arguments),i?k=c.length:e&&e!==!0&&(j=a,n(e[0],e[1]))}return this}
promise: function (a){if(a==null)a=h;else for(var b in h)a[b]=h[b];return a}
readyState: 4
responseText: "<html>
↵ <head>
↵ <title>The resource cannot be found.</title>
↵ <style>
↵ body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;}
↵ p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px}
↵ b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px}
↵ H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red }
↵ H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon }
↵ pre {font-family:"Lucida Console";font-size: .9em}
↵ .marker {font-weight: bold; color: black;text-decoration: none;}
↵ .version {color: gray;}
↵ .error {margin-bottom: 10px;}
↵ .expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; }
↵ </style>
↵ </head>
↵
↵ <body bgcolor="white">
↵
↵ <span><H1>Server Error in '/BizNET' Application.<hr width=100% size=1 color=silver></H1>
↵
↵ <h2> <i>The resource cannot be found.</i> </h2></span>
↵
↵ <font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif ">
↵
↵ <b> Description: </b>HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.
↵ <br><br>
↵
↵ <b> Requested URL: </b>/BizNET/frmBAProjectDefinition.aspx/UpdateFieldValues<br><br>
↵
↵ <hr width=100% size=1 color=silver>
↵
↵ <b>Version Information:</b> Microsoft .NET Framework Version:2.0.50727.5420; ASP.NET Version:2.0.50727.5459
↵
↵ </font>
↵
↵ </body>
↵</html>
↵<!--
↵[HttpException]: The file '/BizNET/frmBAProjectDefinition.aspx' does not exist.
↵ at System.Web.UI.Util.CheckVirtualFileExists(VirtualPath virtualPath)
↵ at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)
↵ at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)
↵ at System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean noAssert)
↵ at System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert)
↵ at System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath)
↵ at System.Web.UI.PageHandlerFactory.GetHandler(HttpContext context, String requestType, String virtualPath, String path)
↵ at System.Web.HttpApplication.MaterializeHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
↵ at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
↵-->"
setRequestHeader: function (a,b){if(!s){var c=a.toLowerCase();a=m[c]=m[c]||a,l[a]=b}return this}
state: function (){return e}
status: 404
statusCode: function (a){if(a){var b;if(s<2)for(b in a)j[b]=[j[b],a[b]];else b=a[v.status],v.then(b,b)}return this}
statusText: "Not Found"
success: function (){if(c){var a=c.length;m(arguments),i?k=c.length:e&&e!==!0&&(j=a,n(e[0],e[1]))}return this}
then: function (a,b,c){i.done(a).fail(b).progress(c);return this}
__proto__: Object
undefined
我的主要问题是调试器甚至没有转到WebMethod的{{1}}
答案 0 :(得分：0)
这是一个匿名问题，我在这个问题上花了很多时间。我可以通过以下方式解决此问题。
第一类
II型
通过上述步骤，您可以解决该问题。