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ASP.Net: IHttpAsyncHandler and AsyncProcessorDelegate

- by ctrlShiftBryan

I have implemented an IHttpAsyncHandler. I am making about 5 different AJAX calls from a webpage that has widgets to that handler. One of those widgets takes about 15 seconds to load(because of a large database query) the others should all load in under a second. The handler is responding in a synchronous manner. I am getting very inconsistent results. The ProcessRequest method is using Session and other class level variables. Could that be causing different requests to use the same thread instead each there own? I'm getting this... Request1 --- response 1 sec Request2 --- response 14 sec Request3 --- response 14.5 sec Request4 --- response 15 sec Request5 --- response 15.5 sec but I'm looking for something more like this... Request1 --- response 1 sec Request2 --- response 14 sec Request3 --- response 1.5 sec Request4 --- response 2 sec Request5 --- response 1.5 sec Without posting too much code my implementation of the IHttpAsyncHandler methods are pretty standard. private AsyncProcessorDelegate _Delegate; protected delegate void AsyncProcessorDelegate(HttpContext context); IAsyncResult IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, object extraData) { _Delegate = new AsyncProcessorDelegate(ProcessRequest); return _Delegate.BeginInvoke(context, cb, extraData); } void IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) { _Delegate.EndInvoke(result); } Putting a debug break point in my IHttpAsyncHandler.BeginProcessRequest method I can see that the method isn't being fired until the last Process is complete. Also my machine.config has this entry... processModel autoConfig="true" with no other properties set. What else do I need to check for?

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primefaces p:commandButton action not redirecting when in a p:dialog

- by John

I have a command button with an action that returns a new URL to redirect to. When this command button is not inside the p:dialog all works as I would expect, but when I put the command button in the dialog then the dialog just closes and leaves me on the same page. <h:form id="reviewForm"> <h:messages id="saveMsg" showDetail="true" globalOnly="true"/> <p:panel style="text-align: center"> <p:commandButton type="button" value="Submit" onclick="showOptions(); areYouSureVar.show();" /> </p:panel> <p:dialog id="areYouSure" widgetVar="areYouSureVar" resizable="false" width="400" modal="true" header="Are you sure you want to continue?"> <p:panel style="text-align: center"> <p:commandButton id="submit" ajax="false" value="Submit" action="#{mybean.myaction}" oncomplete="areYouSureVar.hide();"/> <p:commandButton type="button" value="Cancel" onclick="areYouSureVar.hide();"/> </p:panel> </p:dialog> </h:form> mybean.action returns a string that points to another page, but that page never loads, the dialog goes away and that is all.

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Calling WCF service with parameter using jQuery

- by Remi Despres-Smyth

I'm trying to call a WCF web service hosted by IIS using jQuery. I can call it fine without any parameters, and I can also call it fine with a GET request that includes my parameter, but as soon as I try to send in the request via POST, the call is failing. The web service is currently nothing but: [OperationContract, WebInvoke] public ValidationResultSummary TestValidateOn( object day) { return null; } I've set the parameter to object, to make sure the issue isn't something with type coercion. With a breakpoint in the web service, I know the call without parameters as well as the GET call with param succeeds; in the latter the expected value is sent up. Calling code looks like: $.ajax({ // type: "GET", // url: "../Shared/Services/DomainServices.svc/TestValidateOn?day='12/Jan/2010'", type: "POST", url: "../Shared/Services/DomainServices.svc/TestValidateOn", // data: "{ }", --This works if object type param, calls with null data: "{'day': " + selectedDate + "}", // This fails miserably // data: "{'day': '" + selectedDate + "'}", --This also fails miserably contentType: "application/json; charset=utf-8", dataType: "json", success: function(data) { displayResults(data.d); }, error: function(xmlHttpReq, status, errThrown) { displayError(xmlHttpReq, status, errThrown); } }); The POST call never reaches my breakpoint, and on the client, error 500 - "Internal Server Error" - is returned. Any help would be appreciated.

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Problem with jqGrid in Internet Explorer 8

- by Dave Swersky

I have developed an ASP.NET MVC (version 2 RC) application with a ton of jqGrids. It's working like a champ in Firefox, but I've discovered a problem in IE8. The "Main View" grids can be filtered by a search box or one of a few dropdowns above the grid. I use some javascript to reset the url for the grid, then trigger a reload, thusly: function filterByName(filter) { if (filter == 'All') { $('#list').setGridParam({ url: 'Application/GetApplications' }); $('#list').trigger("reloadGrid"); } else { $('#list').setGridParam({ url: 'Application/GetAppByName/' + filter + '/' }); $('#list').trigger("reloadGrid"); } } This works like magic in Firefox, but I'm getting an HTTP 400 Bad Request when I do this in IE8. The IE8 client-side debugger is like flint and tinder compared to Firebug's flamethrower, so I'm not having much luck figuring out why it breaks in IE8. Has anyone seen this? Also, the jqGrid "trigger" method here is swallowing the AJAX exception. Is there a way to get it to bubble up so I can get to the exception details? UPDATE: The problem was with the syntax in my "onchange" event for the dropdowns. I was using: onchange="filterByMnemonic($('#drpMnemonic')[0].value); Which Firefox apparently doesn't mind but IE sees that as nuthin'. This, however, works in both browsers: onchange = "filterByMnemonic($('#drpMnemonic > option:selected').attr('value'));"

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Philosophy of [WebInvoke(ResponseFormat = WebMessageFormat.Json)]

- by Mikey Cee

Hi everyone, I'm writing what I'm referring to as a POJ (Plain Old JSON) WCF web service - one that takes and emits standard JSON with none of the crap that ASP.NET Ajax likes to add to it. It seems that there are three steps to accomplish this: Change to in the endpoint's tag Decorate the method with [WebInvoke(ResponseFormat = WebMessageFormat.Json)] Add an incantation of [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] to the service contract This is all working OK for me - I can pass in and am being returned nice plain JSON. If I remove the WebInvoke attribute, then I get XML returned instead, so it is certainly doing what it is supposed to do. But it strikes me as odd that the option to specify JSON output appears here and not in the configuration file. Say I wanted to expose my method as an XML endpoint too - how would I do this? Currently the only way I can see would be to have a second method that does exactly the same thing but does not have WebMethodFormat.Json specified. Then rinse and repeat for every method in my service? Yuck. Specifying that the output should be serialized to JSON in the attribute seems to be completely contrary to the philosophy of WCF, where the service is implemented is a transport and encoding agnostic manner, leaving the nasty details of how the data will be moved around to the configuration file. Is there a better way of doing what I want to do? Or are we stuck with this awkward attribute? Or do I not understanding WCF deeply enough?

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jqGrid Export to CSV Missing Column Names

- by user561557

I have a jqGrid that works perfectly. It contains a pager button to export the grid to a csv file which works and exports the data. However, I also need to have the column names exported with the data and I can't seem to get that to work. My working code follows. jQuery("#detail").jqGrid('navGrid','#pager2', {height:520,width:500,savekey:[true,13],navkeys:[true,38,40],reloadAfterSubmit:false, jqModal:false, closeOnEscape:true, bottominfo:"Fields marked with () are required"}, // edit options {height:520, width:500,savekey:[true,13],reloadAfterSubmit:false,jqModal:false, closeOnEscape:true,bottominfo:"Fields marked with () are required", closeAfterAdd: true}, // add options {reloadAfterSubmit:false,jqModal:false, closeOnEscape:true}, // del options {closeOnEscape:true}, // search options {height:250,width:500,jqModal:false,closeOnEscape:true}, {view:true} // view options ); // add custom button to export the data to excel jQuery("#detail").jqGrid('navButtonAdd','#pager2',{ caption:"", title:"Export to CSV", onClickButton : function () { exportExcel(); }, position:"last" }); // add custom button to print grid jQuery("#detail").jqGrid('navButtonAdd','#pager2',{ caption:"", title:"Print", buttonicon:"ui-icon-print", onClickButton : function () { jQuery('#detail_table').jqprint({ operaSupport: true }); return false; } }); function exportExcel() { var mya=new Array(); mya=jQuery("#detail").getDataIDs(); // Get All IDs var data=jQuery("#detail").getRowData(mya[0]); // Get First row to get the labels var colNames=new Array(); var ii=0; for (var i in data){colNames[ii++]=i;} // capture col names var html=""; for(i=0;i } html=html+"\\n"; // end of line at the end document.forms[0].method='POST'; document.forms[0].action='ajax/csvExport.php'; // send it to server which will open this contents in excel file document.forms[0].target='_blank'; document.forms[0].csvBuffer.value=html; document.forms[0].submit(); }

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nyromodal iframe size problem

- by dzajdol

Hi I have a jquery gallery (galleriffic), which opened nyroModal and a good set size. I want to post pictures on this page (page open with nyromodal where is gallery). When I use an iframe, the page size has the wrong value. jquery code used on the gallery.aspx, which is run as a nyromodal: <script language="javascript" type="text/javascript"> $(document).ready(function() { var height = $(window).height(); var width = $(window).width(); alert(height); alert(width); var autosizable = true; var windowResize = true; var resizeable = true; $.nyroModalSettings({ bgColor: '#000000', windowResize: windowResize, width: width, height: height, resizable: resizeable, autoSizable: autosizable }); }); link opens the gallery page (a little distorted because I did not want me to display a html): *a class="nyroModal" target="_blank" href='Ajax/gallery.aspx?guid=<%= Trip.guid%&op=add'img src="~/img/icon/icon_add.gif" runat="server" //a* How to set good size to this gallery?? When i will put the value of the stiffness does not interpret them Regards

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Using IIS Application Request Routing (ARR) for ASP.NET MVC

- by Malcolm Frexner

I use a simple ASP.NET MVC web (the template you use when you create a new site) and the web works as expected in my live environment. I now try to use IIS Application Request Routing version 2. I have a rule that send all reuqests to a different server that match a rule. The settings are a bit like this: http://blogs.iis.net/wonyoo/archive/2008/07/09/application-request-routing-arr-as-a-reverse-proxy.aspx My rule is just a bit different it is /shop(.*). Only requests that contain shop are send to a different server. I have to use rewrite, not redirect (The same as in the Picture) This works as long as the web the original requests go to is no ASP.NET MVC web. I tried to use a plain htm file in the webfolder and it worked. If put a compiled ASP.NET application into the webfolder it worked. But as soon as I put an ASP.NET MVC web into the folder, request arr served by this application. My understanding is that the ARR should kick in before the web application gets the chance to handle the request. Did anybody use ARR sucessfully as a reverse proxy for a ASP.NET MVC web? EDIT Here is the resulting web config when the rewrite roule is entered. With this rule I get a 404 that indicates that the rule is not used. <?xml version="1.0" encoding="UTF-8"?> <configuration> <configSections> <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere" /> <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> </sectionGroup> </sectionGroup> </sectionGroup> </configSections> <appSettings /> <connectionStrings> <add name="ApplicationServices" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true" providerName="System.Data.SqlClient" /> </connectionStrings> <system.web>  <compilation debug="false"> <assemblies> <add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" /> <add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add assembly="System.Web.Abstractions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add assembly="System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add assembly="System.Web.Mvc, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" /> <add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" /> <add assembly="System.Data.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" /> </assemblies> </compilation>  <authentication mode="Forms"> <forms loginUrl="~/Account/LogOn" timeout="2880" /> </authentication> <membership> <providers> <clear /> <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" passwordFormat="Hashed" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" passwordStrengthRegularExpression="" applicationName="/" /> </providers> </membership> <profile> <providers> <clear /> <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" connectionStringName="ApplicationServices" applicationName="/" /> </providers> </profile> <roleManager enabled="false"> <providers> <clear /> <add connectionStringName="ApplicationServices" applicationName="/" name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> <add applicationName="/" name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> </providers> </roleManager>  <pages> <controls> <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </controls> <namespaces> <add namespace="System.Web.Mvc" /> <add namespace="System.Web.Mvc.Ajax" /> <add namespace="System.Web.Mvc.Html" /> <add namespace="System.Web.Routing" /> <add namespace="System.Linq" /> <add namespace="System.Collections.Generic" /> </namespaces> </pages> <httpHandlers> <remove verb="*" path="*.asmx" /> <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" /> <add verb="*" path="*.mvc" validate="false" type="System.Web.Mvc.MvcHttpHandler, System.Web.Mvc, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </httpHandlers> <httpModules> <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </httpModules> </system.web> <system.codedom> <compilers> <compiler language="c#;cs;csharp" extension=".cs" warningLevel="4" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <providerOption name="CompilerVersion" value="v3.5" /> <providerOption name="WarnAsError" value="false" /> </compiler> <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" warningLevel="4" type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <providerOption name="CompilerVersion" value="v3.5" /> <providerOption name="OptionInfer" value="true" /> <providerOption name="WarnAsError" value="false" /> </compiler> </compilers> </system.codedom> <system.web.extensions />  <system.webServer> <rewrite> <rules> <rule name="shop" stopProcessing="true"> <match url="^shop/([_0-9a-z-.]+)" /> <action type="Rewrite" url="article.aspx?title={R:1}" logRewrittenUrl="true" /> </rule> </rules> </rewrite> <validation validateIntegratedModeConfiguration="false" /> <modules runAllManagedModulesForAllRequests="true"> <remove name="ScriptModule" /> <remove name="UrlRoutingModule" /> <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </modules> <handlers> <remove name="WebServiceHandlerFactory-Integrated" /> <remove name="ScriptHandlerFactory" /> <remove name="ScriptHandlerFactoryAppServices" /> <remove name="ScriptResource" /> <remove name="MvcHttpHandler" /> <remove name="UrlRoutingHandler" /> <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="MvcHttpHandler" preCondition="integratedMode" verb="*" path="*.mvc" type="System.Web.Mvc.MvcHttpHandler, System.Web.Mvc, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="UrlRoutingHandler" preCondition="integratedMode" verb="*" path="UrlRouting.axd" type="System.Web.HttpForbiddenHandler, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> </handlers> </system.webServer> </configuration>

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Telerik RADGrid - linq and updating

- by Dave

Hi Telerik's RADGrid, basing on their example on http://demos.telerik.com/aspnet-ajax/grid/examples/dataediting/programaticlinqupdates/defaultcs.aspx Problem: I can insert and delete, however updating doesn't work. No error trapped. Data just doesn't change. From the code below it looks like Telerik Grid is doing some kung-fu behind the scenes to wire things up. I can't see the db receiving any update statements. Question: anything obvious I'm missing? protected void RadGrid1_UpdateCommand(object source, GridCommandEventArgs e) { var editableItem = ((GridEditableItem) e.Item); var raceId = (Guid) editableItem.GetDataKeyValue("RaceID"); //retrive entity form the Db var race = DbContext.races.Where(n => n.raceid == raceId).FirstOrDefault(); if (race != null) { //update entity's state editableItem.UpdateValues(race); try { //submit chanages to Db DbContext.SubmitChanges(); } catch (Exception f) { ShowErrorMessage(f); } } } Think I may have to go back to their example.. get their db.. and attack from that point of view. Cheers!

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how to reload jqgrid in asp.net mvc when i change dropdownlist

- by sandeep

what is wrong in this code? when i change drop down list,the grid takes old value of ddl only, not taken newely selected values why? <%--<asp:Content ID="Content2script" ContentPlaceHolderID="HeadScript" runat="server"> <script type="text/javascript"> $(function() { $("#StateId").change(function() { $('#TheForm').submit(); }); }); $(function() { $("#CityId").change(function() { $('#TheForm').submit(); }); }); $(function() { $("#HospitalName").change(function() { $('#TheForm').submit(); }); }); </script > </asp:Content>--%> <asp:Content ID="Content3" ContentPlaceHolderID="HeadContent" runat="server"> <link rel="stylesheet" type="text/css" href="/scripts/themes/coffee/grid.css" title="coffee" media="screen" /> <script src="/Scripts/jquery-1.3.2.js" type="text/javascript"></script> <script src="/Scripts/jquery.jqGrid.js" type="text/javascript"></script> <script src="/Scripts/js/jqModal.js" type="text/javascript"></script> <script src="/Scripts/js/jqDnR.js" type="text/javascript"></script> <script type="text/javascript"> var gridimgpath = '/scripts/themes/coffee/images'; var gridDataUrl = '/Claim/DynamicGridData/'; jQuery(document).ready(function() { // $("#btnSearch").click(function() { var StateId = document.getElementById('StateId').value; var CityId = document.getElementById('CityId').value; var HName = document.getElementById('HospitalName').value; // alert(CityId); // alert(StateId); // alert(HName); if (StateId > 0 && CityId == '' && HName == '') { CityId = 0; HName = 'Default'.toString(); // alert("elseif0" + HName.toString()); } else if (CityId > 0 && StateId == '') { // alert("elseif1"); alert("Please Select State..") } else if (CityId > 0 && StateId > 0 && HName == '') { // alert("elseif2"); alert(CityId); alert(StateId); HName = "Default"; } else { // alert("else"); StateId = 0; CityId = 0; HName = "Default"; } jQuery("#list").jqGrid({ url: gridDataUrl + '?StateId=' + StateId + '&CityId=' + CityId + '&hospname=' + HName, datatype: 'json', mtype: 'GET', colNames: ['Id', 'HospitalName', 'Address', 'City', 'District', 'FaxNumber', 'PhoneNumber'], colModel: [{ name: 'HospitalId', index: 'HospitalId', width: 40, align: 'left' }, { name: 'HospitalName', index: 'HospitalName', width: 40, align: 'left' }, { name: 'Address1', Address: 'Address1', width: 300 }, { name: 'CityName', index: 'CityName', width: 100 }, { name: 'DistName', index: 'DistName', width: 100 }, { name: 'FaxNo', index: 'FaxNo', width: 100 }, { name: 'ContactNo1', index: 'PhoneNumber', width: 100 } ], pager: jQuery('#pager'), rowNum: 10, rowList: [5, 10, 20, 50], // sortname: 'Id,', sortname: '1', sortorder: "asc", viewrecords: true, //multiselect: true, //multikey: "ctrlKey", // imgpath: '/scripts/themes/coffee/images', imgpath: gridimgpath, caption: 'Hospital Search', width: 700, height: 250 }); $(function() { // $("#btnSearch").click(function() { $('#CityId').change(function() { alert("kjasd"); // Set the vars whenever the date range changes and then filter the results StateId = document.getElementById('StateId').value; CityId = document.getElementById('CityId').value; HName = 'default'; setGridUrl(); }); // Set the date range textbox values $('#StateId').val(StateId.toString()); $('#CityId').val(CityId.toString()); // Set the grid json url to get the data to display setGridUrl(); }); function setGridUrl() { alert(StateId); alert(CityId); alert("hi"); var newGridDataUrl = gridDataUrl + '?StateId=' + StateId + '&CityId=' + CityId + '&hospname=' + HName; jQuery('#list').jqGrid('setGridParam', { url: newGridDataUrl }).trigger("reloadGrid"); } // }); }); </script> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <%--<%using (Html.BeginForm("HospitalSearch", "Claim", FormMethod.Post, new { id = "TheForm" })) --%> <table cellspacing="0" cellpadding="2" width="100%" border="0" > <tr> <td class ="Heading1"> Hospital Search</td> <td class ="Heading1" align="right" width="50%" background="../images/homebg.gif">   </td> </tr> <tr> <td colspan="2" > <% Html.RenderPartial("InsuredDetails"); %> </td> </tr> <tr> <td colspan="2"> <table width="100%"> <tr> <td class="subline" valign="middle"> State : <% =Html.DropDownList("StateId", (SelectList)ViewData["States"], "--Select--", new { @class = "ddownmenu" })%>   City : <% =Html.DropDownList("CityId", (SelectList)ViewData["Cities"], "--Select--", new { @class = "ddownmenu" })%>   Hospital Name : <% =Html.TextBox("HospitalName")%>     <input id="btnSearch" type="submit" value="Search" /> </td> </tr> </table> </td> </tr> <tr> <td align="center" colspan="2">  </td> </tr> </table> <div id="jqGridContainer"> <table id="list" class="scroll" cellpadding="0" cellspacing="0"></table> <div id="pager" class="scroll" style="text-align:center;"></div> </div> </asp:Content>

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In Asp.Net MVC 2 is there a better way to return 401 status codes without getting an auth redirect

- by Greg Roberts

I have a portion of my site that has a lightweight xml/json REST API. Most of my site is behind forms auth but only some of my API actions require authentication. I have a custom AuthorizeAttribute for my API that I use to check for certain permissions and when it fails it results in a 401. All is good, except since I'm using forms auth, Asp.net conveniently converts that into a 302 redirect to my login page. I've seen some previous questions that seem a bit hackish to either return a 403 instead or to put some logic in the global.asax protected void Application_EndRequest() that will essentially convert 302 to 401 where it meets whatever criteria. Previous Question Previous Question 2 What I'm doing now is sort of like one of the questions, but instead of checking the Application_EndRequest() for a 302 I make my authorize attribute return 666 which indicates to me that I need to set this to a 401. Here is my code: protected void Application_EndRequest() { if (Context.Response.StatusCode == MyAuthAttribute.AUTHORIZATION_FAILED_STATUS) { //check for 666 - status code of hidden 401 Context.Response.StatusCode = 401; } } Even though this works, my question is there something in Asp.net MVC 2 that would prevent me from having to do this? Or, in general is there a better way? I would think this would come up a lot for anyone doing REST api's or just people that do ajax requests in their controllers. The last thing you want is to do a request and get the content of a login page instead of json.

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Jquery Fancybox not working after postback

- by Lee Englestone

I have a Fancybox (or more accurately) a number of fancy boxes on an asp.net page. My Fancybox (jquery plugin) works fine until a postback occurs on the page then it refuses to work. Any thoughts? Anyone experienced similar behaviour? UPDATE : Some Code.. I have a databound repeater with a fancybox on each repeating item. They are instanciated by (outside the repeater) $(document).ready(function() { $("a.watchvideo").fancybox({ 'overlayShow': false, 'frameWidth' : 480, 'frameHeight' : 400 }); }); The anchor tag is repeated.. href="#watchvideo_<%#Eval("VideoId")%" As is a div with id="watchvideo_<%#Eval("VideoId") %> As is a script element that instanciates the flash movies Yes the VideoIds are being output the the page. UPDATE : It's not a problem with the flash.. It is not a problem with the flash as i've tried it without the flash, it wont even pop a window with a simple message in. UPDATE : I wonder if it is the updatepanel. http://stackoverflow.com/questions/301473/rebinding-events-in-jquery-after-ajax-update-updatepanel -- lee

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Spring MVC jQuery remote validation

- by raulsan

Hi, I am using Spring MVC on the server side, but in one of the pages I decided to create an AJAX validation with jQuery rather than the default Spring validation. Everything works great, except when I have to do a remote validation to check if a "title" already exists. For the javascript I have the following: var validator = $("form").validate({ rules: { title: { minlength: 6, required: true, remote: { url: location.href.substring(0,location.href.lastIndexOf('/'))+"/checkLocalArticleTitle.do", type: "GET" } }, html: { minlength: 50, required: true } }, messages: { title: { required: "A title is required.", remote: "This title already exists." } } }); Then, I use Spring-Json to make this validation and give a response: @RequestMapping("/checkLocalArticleTitle.do") public ModelAndView checkLocalArticleTitle(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Map model = new HashMap(); String result = "FALSE"; try{ String title = request.getParameter("title"); if(!EJBRequester.articleExists(title)){ result = "TRUE"; } }catch(Exception e){ System.err.println("Exception: " + e.getMessage()); } model.put("result",result); return new ModelAndView("jsonView", model); } However, this does not work and the field "title" is never validated. I think the reason for this is that I am returning an answer in the manner: {result:"TRUE"} when in fact, the answer should be: {"TRUE"} I don't know how to return a single response like this one using a ModelAndView answer. Another thing that is not working is the customized message for the "remote" validation: messages: { title: { required: "A title is required.", remote: "This title already exists." } }, The required message works, but not the remote message. I looked around, but I didn't see many people using Spring and jQuery at the same time. I would appreciate some help here.

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Turning XSLT into a simple HTML snippet.

- by jaasum

http://drp.ly/yeAex <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="/data/tour/entry"> <img src="{filename}"/> <h2>{heading}</h2> {description} </xsl:template> </xsl:stylesheet> Here is the code I am working with. I am a newbie to XSLT and I suppose I am not understanding how it transforms my XML into HTML entirely. This snippet of code I plan on loading via AJAX, so I really all I need it to output is a blank html document consisting only of these three items. I realize I am omitting the xsl:output tag and that is because I really don't understand how I can get this to just simply match that information to my tags in my xml without adding , tags etc. All it outputs is a string of text in an html document.

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Hidden/Shown AsyncFileUpload Control Doesn't Fire Server-Side UploadedComplete Event

- by Bob Mc

I recently came across the AsyncFileUpload control in the latest (3.0.40412) release of the ASP.Net Ajax Control Toolkit. There appears to be an issue when using it in a hidden control that is later revealed, such as a <div> tag with visible=false. Example: Page code - <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="act" %> . . . <act:ToolkitScriptManager runat="server" ID="ScriptManager1" /> <asp:UpdatePanel runat="server" ID="upnlFileUpload"> <ContentTemplate> <asp:Button runat="server" ID="btnShowUpload" Text="Show Upload" /> <div runat="server" id="divUpload" visible="false"> <act:AsyncFileUpload runat="server" id="ctlFileUpload" /> </div> </ContentTemplate> </asp:UpdatePanel> Server-side Code - Protected Sub ctlFileUpload_UploadedComplete(ByVal sender As Object, ByVal e As AjaxControlToolkit.AsyncFileUploadEventArgs) Handles ctlFileUpload.UploadedComplete End Sub Protected Sub btnShowUpload_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnShowUpload.Click divUpload.Visible = True End Sub I have a breakpoint on the UploadedComplete event but it never fires. However, if you take the AsyncFileUpload control out of the <div>, making it visible at initial page render, the control works as expected. So, is this a bug within the AsynchUploadControl, or am I not grasping a fundamental concept (which happens regularly)?

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jQuery Sortable .toArray with ASP.NET MVC ActionResult

- by Stacey

Third try at fixing this tonight - trying a different approach than before now. Given a jQuery Sortable List.. <ul id="sortable1" class="connectedSortable"> <li class="ui-state-default" id="item1">Item 1</li> <li class="ui-state-default" id="item2">Item 2</li> <li class="ui-state-default">Item 3</li> <li class="ui-state-default ">Item 4</li> <li class="ui-state-default">Item 5</li> </ul> <ul id="sortable2" class="connectedSortable"> </ul> And ASP.NET MVC ActionResult.. [AcceptVerbs(HttpVerbs.Post)] public ActionResult Insert( string[] items ) { return null; } Activated by JavaScript... $("#sortable1, #sortable2").sortable({ connectWith: '.connectedSortable', dropOnEmpty: true, receive: function () { var items = $(this).sortable('toArray'); alert(items); $.ajax({ url: '/Manage/Events/Insert', type: 'post', data: { 'items': items } }); } }).disableSelection(); The 'alert' DOES show the right items. It shows 'item1, item2' etc. But my ASP.NET MVC ActionResult gets nothing. The method DOES fire, but the 'items' parameter comes in null. Any ideas?

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Why is jQuery so widely adopted versus other Javascript frameworks?

- by Andrew Moore

I manage a group of programmers. I do value my employees opinion but lately we've been divided as to which framework to use on web projects. I personally favor MooTools, but some of my team seems to want to migrate to jQuery because it is more widely adopted. That by itself is not enough for me to allow a migration. I have used both jQuery and MooTools. This particular essay tends to reflect how I feel about both frameworks. jQuery is great for DOM Manipulation, but seem to be limited to helping you do that. Feature wise, both jQuery and MooTools allow for easy DOM Selection and Manipulation: // jQuery $('#someContainer div[class~=dialog]') .css('border', '2px solid red') .addClass('critical'); // MooTools $('#someContainer div[class~=dialog]') .setStyle('border', '2px solid red') .addClass('critical'); Both jQuery and MooTools allow for easy AJAX: // jQuery $('#someContainer div[class~=dialog]') .load('/DialogContent.html'); // MooTools (Using shorthand notation, you can also use Request.HTML) $('#someContainer div[class~=dialog]') .load('/DialogContent.html'); Both jQuery and MooTools allow for easy DOM Animation: // jQuery $('#someContainer div[class~=dialog]') .animate({opacity: 1}, 500); // MooTools (Using shorthand notation, you can also use Fx.Tween). $('#someContainer div[class~=dialog]') .set('tween', {duration: 500}) .tween('opacity', 1); jQuery offers the following extras: Large community of supporters Plugin Repository Integration with Microsoft's ASP.NET and VisualStudio Used by Microsoft, Google and others MooTools offers the following extras: Object Oriented Framework with Classic OOP emulation for JS Extended native objects Higher consistency between browsers for native functions support. More easy code reuse Used by The World Wide Web Consortium, Palm and others. Given that, it seems that MooTools does everything jQuery does and more (some things I cannot do in jQuery and I can in MooTools) but jQuery has a smaller learning curve. So the question is, why did you or your team choose jQuery over another JavaScript framework? Note: While I know and admit jQuery is a great framework, there are other options around and I'm trying to take a decision as to why jQuery should be our choice versus what we use right now (MooTools)?

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MVC 2 Entity Framework View Model Insert

- by cannibalcorpse

This is driving me crazy. Hopefully my question makes sense... I'm using MVC 2 and Entity Framework 1 and am trying to insert a new record with two navigation properties. I have a SQL table, Categories, that has a lookup table CategoryTypes and another self-referencing lookup CategoryParent. EF makes two nav properties on my Category model, one called Parent and another called CategoryType, both instances of their respective models. On my view that creates the new Category, I have two dropdowns, one for the CategoryType and another for the ParentCategory. When I try and insert the new Category WITHOUT the ParentCategory, which allows nulls, everything is fine. As soon as I add the ParentCategory, the insert fails, and oddly (or so I think) complains about the CategoryType in the form of this error: 0 related 'CategoryTypes' were found. 1 'CategoryTypes' is expected. When I step through, I can verifiy that both ID properties coming in on the action method parameter are correct. I can also verify that when I go to the db to get the CategoryType and ParentCategory with the ID's, the records are being pulled fine. Yet it fails on SaveChanges(). All that I can see is that my CategoryParent dropdownlistfor in my view, is somehow causing the insert to bomb. Please see my comments in my httpPost Create action method. My view model looks like this: public class EditModel { public Category MainCategory { get; set; } public IEnumerable<CategoryType> CategoryTypesList { get; set; } public IEnumerable<Category> ParentCategoriesList { get; set; } } My Create action methods look like this: // GET: /Categories/Create public ActionResult Create() { return View(new EditModel() { CategoryTypesList = _db.CategoryTypeSet.ToList(), ParentCategoriesList = _db.CategorySet.ToList() }); } // POST: /Categories/Create [HttpPost] public ActionResult Create(Category mainCategory) { if (!ModelState.IsValid) return View(new EditModel() { MainCategory = mainCategory, CategoryTypesList = _db.CategoryTypeSet.ToList(), ParentCategoriesList = _db.CategorySet.ToList() }); mainCategory.CategoryType = _db.CategoryTypeSet.First(ct => ct.Id == mainCategory.CategoryType.Id); // This db call DOES get the correct Category, but fails on _db.SaveChanges(). // Oddly the error is related to CategoryTypes and not Category. // Entities in 'DbEntities.CategorySet' participate in the 'FK_Categories_CategoryTypes' relationship. // 0 related 'CategoryTypes' were found. 1 'CategoryTypes' is expected. //mainCategory.Parent = _db.CategorySet.First(c => c.Id == mainCategory.Parent.Id); // If I just use the literal ID of the same Category, // AND comment out the CategoryParent dropdownlistfor in the view, all is fine. mainCategory.Parent = _db.CategorySet.First(c => c.Id == 2); _db.AddToCategorySet(mainCategory); _db.SaveChanges(); return RedirectToAction("Index"); } Here is my Create form on the view : <% using (Html.BeginForm()) {%> <%= Html.ValidationSummary(true) %> <fieldset> <legend>Fields</legend> <div> <%= Html.LabelFor(model => model.MainCategory.Parent.Id) %> <%= Html.DropDownListFor(model => model.MainCategory.Parent.Id, new SelectList(Model.ParentCategoriesList, "Id", "Name")) %> <%= Html.ValidationMessageFor(model => model.MainCategory.Parent.Id) %> </div> <div> <%= Html.LabelFor(model => model.MainCategory.CategoryType.Id) %> <%= Html.DropDownListFor(model => model.MainCategory.CategoryType.Id, new SelectList(Model.CategoryTypesList, "Id", "Name"))%> <%= Html.ValidationMessageFor(model => model.MainCategory.CategoryType.Id)%> </div> <div> <%= Html.LabelFor(model => model.MainCategory.Name) %> <%= Html.TextBoxFor(model => model.MainCategory.Name)%> <%= Html.ValidationMessageFor(model => model.MainCategory.Name)%> </div> <div> <%= Html.LabelFor(model => model.MainCategory.Description)%> <%= Html.TextAreaFor(model => model.MainCategory.Description)%> <%= Html.ValidationMessageFor(model => model.MainCategory.Description)%> </div> <div> <%= Html.LabelFor(model => model.MainCategory.SeoName)%> <%= Html.TextBoxFor(model => model.MainCategory.SeoName, new { @class = "large" })%> <%= Html.ValidationMessageFor(model => model.MainCategory.SeoName)%> </div> <div> <%= Html.LabelFor(model => model.MainCategory.HasHomepage)%> <%= Html.CheckBoxFor(model => model.MainCategory.HasHomepage)%> <%= Html.ValidationMessageFor(model => model.MainCategory.HasHomepage)%> </div> <p><input type="submit" value="Create" /></p> </fieldset> <% } %> Maybe I've just been staying up too late playing with MVC 2? :) Please let me know if I'm not being clear enough.

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Losing sessions with window.open and cakephp redirection in PHP with cakephp

- by vsecades

Hi guys, Ok, here goes a very strange problem... Our team is using cakephp to develop a large application. Everything session related is working properly so far. The only issues we've had so far are related to iframes and opening windows in other subdomains. I'll explain: User opens up site A and logs into it, creation a User in a session. Cookies are set, everything works as expected. The user clicks a link that opens up Site B via Javascript. When they go to that site, they are automatically logged in by a backend mechanism and infrastructure. Site B is a subdomain of Site A. On that site there is another mechanism to go back to the first page (a link rather) that logs them back in to site A. The fun part about this whole process is the following, and that on step 3, when we click on the link, the session on Site A has been lost. I know it's lost because it is forcing login again. I am a bit lost, as the rest of the application that work with AJAX and uses iframes and stuff works flawlessly, just this one item does not work as one would expect. Any assistance would be appreciated. Cheers, Valentin

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ASP.NET. MVC2. Entity Framework. Cannot pass primary key value back from view to [HttpPost]

- by Paul Connolly

I pass a ViewModel (which contains a "Person" object) from the "EditPerson" controller action into the view. When posted back from the view, the ActionResult receives all of the Person properties except the ID (which it says is zero instead of say its real integer) Can anyone tell me why? The controllers look like this: public ActionResult EditPerson(int personID) { var personToEdit = repository.GetPerson(personID); FormationViewModel vm = new FormationViewModel(); vm.Person = personToEdit; return View(vm); } [HttpPost] public ActionResult EditPerson(FormationViewModel model) <<Passes in all properties except ID { // Persistence code } The View looks like this: <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<Afp.Models.Formation.FormationViewModel>" %> <% using (Html.BeginForm()) {% <%= Html.ValidationSummary(true) % <fieldset> <legend>Fields</legend> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.Title) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.Title) %> <%= Html.ValidationMessageFor(model => model.Person.Title) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.Forename)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.Forename)%> <%= Html.ValidationMessageFor(model => model.Person.Forename)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.Surname)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.Surname)%> <%= Html.ValidationMessageFor(model => model.Person.Surname)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.DOB) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.DOB, String.Format("{0:g}", Model.DOB)) <%= Html.ValidationMessageFor(model => model.DOB) %> </div>--%> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.Nationality)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.Nationality)%> <%= Html.ValidationMessageFor(model => model.Person.Nationality)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.Occupation)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.Occupation)%> <%= Html.ValidationMessageFor(model => model.Person.Occupation)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.CountryOfResidence)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.CountryOfResidence)%> <%= Html.ValidationMessageFor(model => model.Person.CountryOfResidence)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.PreviousNameForename)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.PreviousNameForename)%> <%= Html.ValidationMessageFor(model => model.Person.PreviousNameForename)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.PreviousSurname)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.PreviousSurname)%> <%= Html.ValidationMessageFor(model => model.Person.PreviousSurname)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.Email)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.Email)%> <%= Html.ValidationMessageFor(model => model.Person.Email)%> </div> <p> <input type="submit" value="Save" /> </p> </fieldset> <% } % And the Person class looks like: [MetadataType(typeof(Person_Validation))] public partial class Person { public Person() { } } [Bind(Exclude = "ID")] public class Person_Validation { public int ID { get; private set; } public string Title { get; set; } public string Forename { get; set; } public string Surname { get; set; } public System.DateTime DOB { get; set; } public string Nationality { get; set; } public string Occupation { get; set; } public string CountryOfResidence { get; set; } public string PreviousNameForename { get; set; } public string PreviousSurname { get; set; } public string Email { get; set; } } And ViewModel: public class FormationViewModel { public Company Company { get; set; } public Address RegisteredAddress { get; set; } public Person Person { get; set; } public PersonType PersonType { get; set; } public int CurrentStep { get; set; } } }

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ASP.NET MVC validation problem

- by ile

ArticleRepostitory.cs: using System; using System.Collections.Generic; using System.Linq; using System.Web; using CMS.Model; using System.Web.Mvc; namespace CMS.Models { public class ArticleDisplay { public ArticleDisplay() { } public int CategoryID { set; get; } public string CategoryTitle { set; get; } public int ArticleID { set; get; } public string ArticleTitle { set; get; } public DateTime ArticleDate; public string ArticleContent { set; get; } } public class ArticleRepository { private DB db = new DB(); // // Query Methods public IQueryable<ArticleDisplay> FindAllArticles() { var result = from category in db.ArticleCategories join article in db.Articles on category.CategoryID equals article.CategoryID select new ArticleDisplay { CategoryID = category.CategoryID, CategoryTitle = category.Title, ArticleID = article.ArticleID, ArticleTitle = article.Title, ArticleDate = article.Date, ArticleContent = article.Content }; return result; } public IQueryable<ArticleDisplay> FindTodayArticles() { var result = from category in db.ArticleCategories join article in db.Articles on category.CategoryID equals article.CategoryID where article.Date == DateTime.Today select new ArticleDisplay { CategoryID = category.CategoryID, CategoryTitle = category.Title, ArticleID = article.ArticleID, ArticleTitle = article.Title, ArticleDate = article.Date, ArticleContent = article.Content }; return result; } public Article GetArticle(int id) { return db.Articles.SingleOrDefault(d => d.ArticleID == id); } public IQueryable<ArticleDisplay> DetailsArticle(int id) { var result = from category in db.ArticleCategories join article in db.Articles on category.CategoryID equals article.CategoryID where id == article.ArticleID select new ArticleDisplay { CategoryID = category.CategoryID, CategoryTitle = category.Title, ArticleID = article.ArticleID, ArticleTitle = article.Title, ArticleDate = article.Date, ArticleContent = article.Content }; return result; } // // Insert/Delete Methods public void Add(Article article) { db.Articles.InsertOnSubmit(article); } public void Delete(Article article) { db.Articles.DeleteOnSubmit(article); } // // Persistence public void Save() { db.SubmitChanges(); } } } ArticleController.cs: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.Web.Mvc.Ajax; using CMS.Models; using CMS.Model; namespace CMS.Controllers { public class ArticleController : Controller { ArticleRepository articleRepository = new ArticleRepository(); ArticleCategoryRepository articleCategoryRepository = new ArticleCategoryRepository(); // // GET: /Article/ public ActionResult Index() { var allArticles = articleRepository.FindAllArticles().ToList(); return View(allArticles); } // // GET: /Article/Details/5 public ActionResult Details(int id) { var article = articleRepository.DetailsArticle(id).Single(); if (article == null) return View("NotFound"); return View(article); } // // GET: /Article/Create public ActionResult Create() { ViewData["categories"] = new SelectList ( articleCategoryRepository.FindAllCategories().ToList(), "CategoryId", "Title" ); Article article = new Article() { Date = DateTime.Now, CategoryID = 1 }; return View(article); } // // POST: /Article/Create [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(Article article) { if (ModelState.IsValid) { try { // TODO: Add insert logic here articleRepository.Add(article); articleRepository.Save(); return RedirectToAction("Index"); } catch { return View(article); } } else { return View(article); } } // // GET: /Article/Edit/5 public ActionResult Edit(int id) { ViewData["categories"] = new SelectList ( articleCategoryRepository.FindAllCategories().ToList(), "CategoryId", "Title" ); var article = articleRepository.GetArticle(id); return View(article); } // // POST: /Article/Edit/5 [AcceptVerbs(HttpVerbs.Post)] public ActionResult Edit(int id, FormCollection collection) { Article article = articleRepository.GetArticle(id); try { // TODO: Add update logic here UpdateModel(article, collection.ToValueProvider()); articleRepository.Save(); return RedirectToAction("Details", new { id = article.ArticleID }); } catch { return View(article); } } // // HTTP GET: /Article/Delete/1 public ActionResult Delete(int id) { Article article = articleRepository.GetArticle(id); if (article == null) return View("NotFound"); else return View(article); } // // HTTP POST: /Article/Delete/1 [AcceptVerbs(HttpVerbs.Post)] public ActionResult Delete(int id, string confirmButton) { Article article = articleRepository.GetArticle(id); if (article == null) return View("NotFound"); articleRepository.Delete(article); articleRepository.Save(); return View("Deleted"); } } } View/Article/Create.aspx: <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<CMS.Model.Article>" %> <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> Create </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <h2>Create</h2> <%= Html.ValidationSummary("Create was unsuccessful. Please correct the errors and try again.") %> <% using (Html.BeginForm()) {%> <fieldset> <legend>Fields</legend> <p> <label for="Title">Title:</label> <%= Html.TextBox("Title") %> <%= Html.ValidationMessage("Title", "*") %> </p> <p> <label for="Content">Content:</label> <%= Html.TextArea("Content", new { id = "Content" })%> <%= Html.ValidationMessage("Content", "*")%> </p> <p> <label for="Date">Date:</label> <%= Html.TextBox("Date") %> <%= Html.ValidationMessage("Date", "*") %> </p> <p> <label for="CategoryID">Category:</label> <%= Html.DropDownList("CategoryId", (IEnumerable<SelectListItem>)ViewData["categories"])%> </p> <p> <input type="submit" value="Create" /> </p> </fieldset> <% } %> <div> <%=Html.ActionLink("Back to List", "Index") %> </div> </asp:Content> If I remove DropDownList from .aspx file then validation (on date only because no other validation exists) works, but of course I can't create new article because one value is missing. If I leave dropdownlist and try to insert wrong date I get following error: System.InvalidOperationException: The ViewData item with the key 'CategoryId' is of type 'System.Int32' but needs to be of type 'IEnumerable'. If I enter correct date than the article is properly inserted. There's one other thing that's confusing me... For example, if I try manually add the categoyID: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(Article article) { if (ModelState.IsValid) { try { // TODO: Add insert logic here // Manually add category value article.CategoryID = 1; articleRepository.Add(article); articleRepository.Save(); return RedirectToAction("Index"); } catch { return View(article); } } else { return View(article); } } ..I also get the above error. There's one other thing I noticed. If I add partial class Article, when returning to articleRepository.cs I get error that 'Article' is an ambiguous reference between 'CMS.Models.Article' and 'CMS.Model.Article' Any thoughts on this one?

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How do you protect against specific CSRF attack

- by Saif Bechan

I am going trough the OWASP Top 10 list of 2007 and 2010. I stumbled upon Cross Site Request Forgery (CSRF) this is often called session riding as you let the user usee his session to fulfill your wishes. Now a solution to this is adding a token to every url and this token is checked for every link. For example to vote on product x the url would be: 'http://mysite.com?token=HVBKJNKL' This looks like a solid solution to because a hacker can not guess the token. But I was thinking of the following scenario(I do not know if it is possible): You create a website with an hidden iFrame or div. After that you can load my website in it either using just the normal iFrame or ajax. When you have my website loaded hidden inside your website, and the user has a stored session, the following can be done. You can retrieve the token from the URLS, and still do all the actions needed. Is it possible to do something like this. Or is it not possible to do this cross domain.

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__doPostBack is not working in firefox

- by Dan Williams

The __doPostBack is not working in firefox 3 (have not checked 2). Everything is working great in IE 6&7 and it even works in Chrome?? It's a simple asp:LinkButton with an OnClick event <asp:LinkButton ID="DeleteAllPicturesLinkButton" Enabled="False" OnClientClick="javascript:return confirm('Are you sure you want to delete all pictures? \n This action cannot be undone.');" OnClick="DeletePictureLinkButton_Click" CommandName="DeleteAll" CssClass="button" runat="server"> The javascript confirm is firing so I know the javascript is working, it's specirically the __doPostBack event. There is a lot more going on on the page, just didn't know if it's work it to post the entire page. I enable the control on the page load event. Any ideas? I hope this is the correct way to do this, but I found the answer. I figured I'd put it up here rather then in a stackoverflow "answer" Seems it had something to do with nesting ajax toolkit UpdatePanel. When I removed the top level panel it was fixed. Hope this helps if anyone else has the same problem. I still don't know what specifically was causing the problem, but that was the solution for me.

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jQuery DataTables: Problems with POST Server Side JSON output

- by Tim

Hello Everyone, I am trying to get my datatable to take a POST JSON output from my server. This is my client side code <script> $(document).ready(function() { $('#example').dataTable( { "bProcessing": true, "bServerSide": true, "sAjaxSource": "http://localhost/staff/jobs/my_jobs", "fnServerData": function ( sSource, aoData, fnCallback ) { $.ajax( { "dataType": 'json', "type": "POST", "url": sSource, "data": aoData, "success": fnCallback } ); } } ); } ); </script> Now I have copied and pasted the server side code found in the DataTables examples found here. When I change my sAjaxSource to view this page the table doesn't move beyond 'processing'. When I view the JSON directly I see this output. {"sEcho": 1, "iTotalRecords": 1, "iTotalDisplayRecords": 1, "aaData": [ ["Trident","First Ever Job"]] } Just for fun I went to the POST server-side example and copied some of the JSON they are using for their example and just PHP echoed it straight out of another page. This is the output of that page. {"sEcho": 1, "iTotalRecords": 1, "iTotalDisplayRecords": 1, "aaData": [ ["Trident","Internet Explorer 4.0"]] } Here is where it gets interesting. The JSON that has been processed by the server fails to work yet the JSON simply echo'd by the same server on a different page does work... yet both are almost identical in outputs. I hope someone can shed some light on this because as the tree said to the lumberjack... I'm stumped. Thanks, Tim

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load jquery function from a href onclick

- by QuBaR

I have a html table with a column per row with this html code inside the tags: <a onclick="modalDialog(this); return false;" href="javascript:void(0)">17795</a> <div style="display: none;" class="MessageDataDiv"> some text to show up in my jquery modal window when function modaldialog is clicked. </div> And the jquery function that is called when onclick is fired within the a href link function modalDialog(event) { $('a.message').click(function () { var div = new $(this).closest("td").find(".MessageDataDiv").clone(); div.show().dialog(); event.preventDefault(); }); } Can anyone help me with some advice how to write the jquery function more correct so the function only fires one time when the linked is clicked. I need to have the jquery function modalDialog as a separate function because the html table use ajax partial rendering... The problem is when i click the a href link first time nothing happens, second click on the links gives med two modal dialog and third click gives me three modal dialog and so on...

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