Our client's web app restarts suddenly at random intervals. For each restart, we've found an entry like this in the Windows Event Log:
Event Type: Warning
Event Source: W3SVC-WP
Event Category: None
Event ID: 2262
Date: 2/21/2010
Time: 1:33:52 PM
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Does record locking (Pessimistic and Optimistic Locking) is applicable in ASP.NET application? If so, What is the pros and cons on doing this?
View 3 Repliesi have a web application who uses a stored proc in our SQL Database and process the data with SqlTransaction.BeginTransaction. but we don't place any isolation level.
The stored proc have multiple processing like insert, update and large queries from multiple tables. we decided to place the SqlTransaction class in our code to access the commit and rollback method incase the stored proc has an error.
later when the user is using our website, they experience locking, by the way the average number of users are around 600 a day.
is it possible to eliminate the chance of locking when using the SqlTransaction class when we use an isolation level like "Snapshot".
if not, what level should we use.
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can I retrieve the name that caused a postback? (VB.NET)
View 5 RepliesCurrently I have two events in my view that can trigger the post back (A dropdownlist and a submit button).
1. <%= Html.DropDownList("List", ViewData["Days"] as SelectList, "--Choose Day--", new { onchange = "this.form.submit();" })%>
2. <input type="submit" value="Submit"/>
When either of these are used, it they both call the [AcceptVerbs(HttpVerbs.Post)] Index() method.
What I want to know is how can I know which event caused the postback, because I need to process each one differently.
I would like to send along the page address that caused a 404 error in my custom 404.aspx file. Is this possible?
I'm using a redirect in the webconfig if a status code of 404 is encountered.
I have an ASP.NET web form application. In the web.config associated with this application, I handle my custom error like so:
<customErrors mode="Off" defaultRedirect="error.aspx" />
When a user gets to the error.aspx page, I want to determine what error caused this page to get reached.
In Page_Load, Request["__EVENTTARGET"] is an empty string.IS there some way I can find out which button triggered the postback before hitting the buttons event handler
View 2 Repliessender.GetType().Name returns me "default.aspx".How do I get the name or identify the control that caused the page postback (Page_Load() event)?
[Code]....
Is there a way to determine which control on a page caused a post back? I need to be able to make the determination since the _DataBound event of a FormView that I'm working with needs function differently based on which control caused the postback.
View 1 RepliesI have a calendar extender for a text box. I have set the text box 'causesvalidation' to false.
I have several other cntrols with required field validators. When I click the popup image for the calendar extender, rhese other required field validators show their error messages.
Not too sure if the title is the most appropriate description, but I've noticed at the bottom of my page I have a load of 'whitespace' / emptiness where my panel - that is linked to ModalPopup - is during coding / design. Is there a way of this space not appearing when the page is rendered? Setting the panel's visibility to false gives me all sorts of issues and I don't know where to go now to get rid of this annoying space!
View 2 RepliesI haven't actually dealt with multiple grids on one page in a very long time, so perhaps someone can jog my memory. I have two grids and a treeview in three separate jQuery UI tabs. Every time I page my gridview, which is a custom control inheriting from Gridview, the other tabs refresh.
View 2 Repliesi have developed website in MS framework 2.0 using Visual Studio 2005 Sql Server 2005 and Crystal Report 2008 (Version 12.0.0.549) due to some problem i have formated my pc and reinstalled Visual Studio 2005 Sql Server 2005 and Crystal Report 2008 sp3 (Upper version)on my pc now my website project running on IIS 5. is fine but when i open my website on visual studio 2005 it shows an error as below ...................
101 It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.
D:NayanAdvance_TestAdvancesystemweb.con
it need registry i think so, Now i did't get this error exactly
I have seen a million forums ask this question. This is what has been working for me.
protected void checkboxlist_SelectedIndexChanged(object sender, EventArgs e)
{
CheckBoxList list = (CheckBoxList)sender;
string[] control = Request.Form.Get("__EVENTTARGET").Split('$');
int idx = control.Length - 1;
string sel = list.Items[Int32.Parse(control[idx])].Value;
I'm way off and have just been lucking out, but I haven't seen a case where the index wasn't the last value in a '$' terminated string.
I have a Reportviewer control linked to Report1.rdlc with a matrix with Drillthrough activiated.When I click the "+" buttons to drill through, even I enclosed the control with Penal etc it still caused the whole page refreshed which is annoying. The same Panel code works well on other ASP.net controls on page on running.
View 1 RepliesI use the app_offline.htm file to bring my site down when I have to roll a new revision. However, even after I launch I'd like to be able to play around and test my site before anyone else has access. Since almost all of my pages are available without logging in, I need to way to lock down my application to everyone but myself and obviously the app_offline.htm file won't for for this.
I have a BasePage class and I'm thinking the only way to do this would be to put code in that class's Page_Init method and I could check for my specific IP address and kick everyone whose IP doesn't match to the app_offline.htm file. However, I'm wondering if this would be the best method since my IP will change.
I'm about to begin a new web project using asp.net 4.0 (EF 2.0). I have a question on row locking...customer is concerned that if employee 1 has a record in edit mode, they want to lock the row and make it uneditable for other users, until employee 1 has saved their changes. A step further is, if employee #2 attempts to edit the locked record, a notification would appear, notifying employee #2 that "Employee #1 John Doe" has the record locked and to contact them.
View 4 RepliesI have set up in javascript:
var onBeforeUnloadFired = false;
window.onbeforeunload = function (sender, args)
{
if(window.event){
if(!onBeforeUnloadFired) {
onBeforeUnloadFired = true;
window.event.returnValue = 'You will lose any unsaved changes!'; //IE
}
}
else {
return 'You will lose any unsaved changes!'; //FX
}
windows.setTimeout("ResetOnBeforeUnloadFired()", 1000);
}
function ResetOnBeforeUnloadFired() {
//Need this variable to prevent IE firing twice.
onBeforeUnloadFired = false;
}
I'm trying to achieve an edit screen where the user is warned before navigating away. It works fine except I get the pop up for normal post backs of button clicks. I'm hoping to avoid this so I'm figuring if I could determine which button was pressed it would work. Does anybody know how to determine which button was pressed in the indows.onbeforeunload? Alternatively anyone know a better approach to what I'm trying to achieve?
I'm using a 3rd party web service in my ASP.NET application. Calls to the 3rd party web service have to be synchronized, but ASP.NET is obviously multi-threaded and multiple page requests could be made that result in simultaneous calls to the 3rd party web service. Calls to the web service are encapsulated in a custom object. My thought is to store the object in an application variable and use the C# lock keyword to force synchronized use of it.
I'm nervous, because I'm new to multi threaded concepts and I've read that you shouldn't lock a public object (which my application variable effectively is). I've also read that if the locked block of code fails (which it could if the web service fails), then it could destabilize the app domain and bring down the application.I should mention that the 3rd party web service is rarely used in my website and it's going to be rare that 2 requests to it are made at the same time.Here's a rough code sample of how I'd make calls to the web service:
ThirdPartWebService objWebService = Application["ThirdPartWebService"] As ThirdPartWebService;
lock (objWebService)
{
objWebService.CallThatNeedsToBeSynchronized();
}
i have create a form..and i generate ID using dropdown list for user for registration before they save the page..the ID will appear when click "signUp" button.("ID" not saved yet into database)
i want the "ID" lock into databse when click "signUp" button..
I have an ASP.NET MVC website that uses an internal dll for some PInvoke stuff. The dll is located in the /bin folder next to the other assemblies. This works well, but if I want to replace the content of the /bin folder with the newest set of files by copying onto the existing files (this is on a test server) the PInvoke dll is locked/used by the w3wp.exe worker process and cannot be replaced except after you recycle the apppool or restart IIS.
Is this standard behavior or can I somehow instruct the ASP.NET runtime to take a shadow copy of the PInvoke dll similar to the regular assemblies?
I'm using password retrieval to attempt to send their password in an email
The page caused the following exception: System.Net.WebException: The remote name could not be resolved: [URL]
My webconfig file is as follows view plaincopy to clipboardprint?
I am using VS 2008, IIS 7, .NET 3.5 on a vista machine. I created a new web-site using "HTTP", thus to use IIS. The application being created by VS 2008 created the virtual directory.
There are only two objects created initially with a new website "Default.aspx" and "web.config" file. I've made no changes and choose to view in browser and receive the following error:
It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.
I've removed and reinstalled IIS 7. None of the sites previously created work. I've validated that a duplicate webconfig doesn't exist.
I have multiple database running in my SQL Sever , in that I need to lock only one database is there is any inbuilt method in SQL Server 2008
View 1 Replies