Search results matching tag 'Bugs'

The ASP.NET MVC 2 Beta for VS2008 bug report

Doggy8088 — Mon, 23 Nov 2009 05:00:00 GMT

When the strong-typed Model passed to the View, and the Model Type name contains non-ASCII characters. e.g. Chinese characters. The View will not able to rendered due to C# compilation error. That's because the C# compiler doesn't recognize the file encoding with "UTF-8 without BOM" when View file content contains UTF-8 characters ( non-ASCII parts ). The C# compiler just treat "UTF-8 without BOM" file as "ASCII" or "Default" encoding, so that the compilation failed.

All these problems comes from the default MVC T4 Host write all output as UTF-8 without BOM. I think it's a bug for non-English people.

There is a workaround of mine that is modify the View file they generated every times when run "Add View" command within the Controller in the VS2008.

I was tried to modify the *.tt files under "C:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE\ItemTemplates\CSharp\Web\MVC\CodeTemplates\AddView" folder. Even I modified the <#@ output extension="aspx" #> to <#@ output extension="aspx" Encoding="UTF-8" #>, the result is the same. Even I specify encoding as "ASCII" or "BIG5", the output file encoding still UTF-8 without BOM.

This problem has plagued me for a while. I think this problem will plague many others non-English developers too when Model Types contains non-ASCII characters.

Hope someone could see this problem.

Thanks!

how to call a modal popup after saving a text file

ramesh.sri — Fri, 15 May 2009 04:00:00 GMT

Hi ,

could please tell how slove the problem

i am saving one text file using the below code

Response.ContentType = "Application/txt";

string FilePath = MapPath("ANSI837/" + fileName);

Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName);

Response.WriteFile(FilePath);

after saving the file i want call one function or i want show one modalpop how to write the code for that one

i tryied with below code, but no use

Response.ContentType = "Application/txt";

string FilePath = MapPath("ANSI837/" + fileName);

Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName);

Response.WriteFile(FilePath);

Response.End();

this.ModalPopupExtender1.Show();

Thanks

Raja

Re: javascript breakpoint quirk - anonymous functions

evankstone — Wed, 08 Apr 2009 04:00:00 GMT

thanks.

yes, i stumbled on that solution as well, but i find it to be a very lame procedure to go through to set a breakpoint just because VS doesn't understand valid javascript (i.e. anonymous functions).

very disappointing, especially since this is an extremely common pattern in javascript frameworks.

unfortunately, that seems to be the only workaround for this bug, but thanks again for suggesting it! :)

Re: onScroll bug in ASP:Panel control?

wujood — Tue, 31 Mar 2009 04:00:00 GMT

NC,

No problem. If you do ever get the time, you don't have to sift through my code, simply copy paste the code given by microsoft in below link to recreate the bug. Essentially, it is the onScroll event firing multiple times for div panels. It has been a bug in IE since IE 5 and I just confirmed that it still exists in IE 6 and IE 7. I had to convert all html tags to lower case in the Microsoft code below to conform with xhtml standard and then the bug was identified.

http://support.microsoft.com/kb/238004

Despite the popular sentiment regarding Microsoft products, I have supported and adopted microsoft technologies just because they seem to work well together. However, the QA at Miscrosoft can do a better job than they have been doing in recently.

This IE bug is one example. The other day I found that the FileSystemWatcher component fires event twice as well when a new file is created in a directory, so had to find a hack for that. When I am creating C# stored procedures using VS 2005 on my dual core machine, there is a race condition that develops among processors (or something to that effect) which essentially stalls / freezes visual studio environment, resulting in the inability to debug the stored procedure further. The integration of SQL Management Studio with Visual Source Safe has also been a source of immense pain in our group lately....etc etc...

I certainly do not expect anyone to be resolving bugs in forums like these that Microsoft should have fixed prior to rolling out the product. It is just frustrating from developer's point of view to go through finding hacks for temporary fixes to these problems. One can only hope that MS does a better job in quality assurance and testing in future..

regards,

~ Denial is not a river in Egypt ~

RedirectToAction + IsAjaxRequest problem with Firefox

jake10000 — Fri, 27 Mar 2009 04:00:00 GMT

I have an Ajax action link that calls action A. Action A calls RedirectToAction(B). When processing action B, Request.IsAjaxRequest returns true in IE7 and IE8, but false in Firefox 3.06. Any info on whether this will be fixed anytime soon? This bug makes it very hard to implement cross-browser Ajax apps with ASP.NET MVC.

Bug using return File()

smkrbr — Thu, 05 Feb 2009 05:00:00 GMT

Code

public ActionResult DownloadReport(int id)
{
return File(new byte[5], "application/octet-stream", "Отчет Офом от 29.01.2009");
}

Exception:

[FormatException: Недопустимый знак в заголовке электронной почты.]
System.Net.Mime.MailBnfHelper.GetTokenOrQuotedString(String data, StringBuilder builder) +1132650
System.Net.Mime.ContentDisposition.ToString() +270
System.Web.Mvc.FileResult.ExecuteResult(ControllerContext context) +154
System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) +10 System.Web.Mvc.<>c__DisplayClass11.b__e() +20
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +251
System.Web.Mvc.<>c__DisplayClass13.b__10() +19
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +178
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +350
System.Web.Mvc.Controller.ExecuteCore() +110
System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +27
System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +7
System.Web.Mvc.MvcHandler.ProcessRequest(HttpContextBase httpContext) +119
System.Web.Mvc.MvcHandler.ProcessRequest(HttpContext httpContext) +41
System.Web.Mvc.MvcHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext httpContext) +7
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +181
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

Two bugs or at least I think they are

deerchao — Sun, 01 Feb 2009 05:00:00 GMT

1, Say, I have an action like this:

public ActionResult DoingSomethingThatNeedsValidation(Something s)

{

if(s.Name == "aaa")

s.Name = "bbb";

return View(s);

}

And the View:

<%= Html.TextBox("Name") %>

The problem is that after the action, the UI still shows "aaa", but not "bbb"; Even if I wrote it like this:

<%= Html.TextBox("Name", Model.Name) %>

And here is my solution:

InputExtensions.cs:

        private static string InputHelper(this HtmlHelper htmlHelper, InputType inputType, string name, object value, bool useViewData, bool isChecked, bool setId, bool isExplicitValue, IDictionary<string, object> htmlAttributes) {
            ......
            switch (inputType) {
                case InputType.CheckBox:
                case InputType.Radio:
                    ............
                case InputType.Password:
                    ............
                default:
                    //modified by deerchao
                    //otherwise model data changes from controller is not reflected into the view
                    string attemptedValue = isExplicitValue
                        ? Convert.ToString(value)
                        :(string)htmlHelper.GetModelStateValue(name, typeof(string));
                    tagBuilder.MergeAttribute("value", attemptedValue ?? ((useViewData) ? htmlHelper.EvalString(name) : valueParameter), isExplicitValue);
                    break;
            }

2, HtmlHelper class may throw NullReferenceException not necessarily. And here is the solution:

File HtmlHelper.cs

        internal object GetModelStateValue(string key, Type destinationType) {
            ModelState modelState;
            if (ViewData.ModelState.TryGetValue(key, out modelState)) {
                //if appended by deerchao:
                if(modelState.Value!=null)
                    return modelState.Value.ConvertTo(destinationType, null /* culture */);
            }
            return null;
        }

Changes in RC that broke my app

dario-g — Wed, 28 Jan 2009 05:00:00 GMT

- Url.Action("About") returns "About" not "Home/About"
- The same Html.BeginForm
- I have few methods in MasterPage code behind, compiles but in runtime throws exception MethodNotFound
- validateRequest=false not worked for me, too
- Url.RouteUrl not worked for me, too
- Where is Cancel property in AuthorizationContext?
- What happed with public virtual method GetListItems in SelectList?

Someone knows how to fix this?

F.Y.I.: security article: TOP 25 Most Dangerous Programming Errors [CWE/SANS]

gerrylowry — Thu, 15 Jan 2009 05:00:00 GMT

F.Y.I.

<http://www.sans.org/top25errors>

"CWE/SANS TOP 25 Most Dangerous Programming Errors

Experts Announce Agreement on the 25 Most Dangerous Programming Errors - And How to Fix Them

Agreement Will Change How Organizations Buy Software.

Project Manager: Bob Martin, MITRE
Questions: top25@sans.org
PDF For Printing :: http://www.sans.org/top25errors//print.pdf (January 12, 2009)

             experts from more than 30 US and international cyber security organizations
             jointly released the consensus list of the 25 most dangerous programming errors
             that lead to security bugs and that enable cyber espionage and cyber crime.

             Shockingly, most of these errors are not well understood by programmers; their avoidance
             is not widely taught by computer science programs; and their presence is frequently not tested
             by organizations developing software for sale."

SharePoint

shreyasingh — Fri, 09 Jan 2009 05:00:00 GMT

I have added a webpart in my sharepoint website.in that web part i have used a usercontrol.but server events doesn't get firred.

can any one provide me the solution.

thanks in advance.