I my web application I perform a time-consuming asynchronous operation. For this, I need to inform user before it starts and after it ends. The latter works as expected, but I cannot make GUI change before asynchronous operation starts. Here is the code snippet:
protected void Button1_Click(object sender, EventArgs e)
{
...
[code]...
I have 3 user controls that I have to load at the same time. They each contain a gridview that pulls data from the database. They are doing a "delay" load of the data so there is a progress bar template that shows that the data is loading however the first gridview fires and loads, then the second, then the third and I need them to all fire at the same time.
View 3 RepliesI am having a gridview with some button column. I have written some functionality in code behind for the button click. How can i display a confirm dialog in mid of the button click functionality and based on users response(Yes or No from dialog) i need to continue the remaining funtionality in the button click event.
View 4 Repliesin my case, It is the windows service which in running the long running insert/update on a table and I need to cancel the operation from my ASP.NET application. In the above link Burnsys suggests that one should kill the Sql server session. Is that really only way and a goood practice to do this? Also, in the same poset can use SqlCommand.Cancel to cancel. However, I am not sure how can I cancel the command from the windows service from ASP.NET application.
View 1 RepliesIn some of the classic descriptions of MVC, the Model notifies Views via the observer pattern. It seems to me that this doesn't happen with ASP.NET MVC, and so one of the fundamental relationships between Model, View, and Controller is missing.
Is this the case? If so, why?
I have recently updated a website. All of the urls have changed. Now I get traffic to old urls that doesn't exist anymore. However, most of these url's have corresponding pages on the new site. I believe most of the traffic to the old urls are spiders. What would be the correct way to handle this?
Preferably I'd like a solution that gives a nice experience for the real users if they type in an old url (or use an old bookmark they've made) but that also notifies the spiders of the change of url, so that they can update their registers. However, if the two are hard to combine, the last one is prioritized (since most of the traffic is spiders). I'm using ASP.NET
I have a web form for a user to update their user information. I have an ObjectDataSource configured to use the Update method in my BLL. If the user changes their email address in the web form, the BLL Update code checks to make sure the email address is not already in use. If it is in use, I want to cancel the update and notify the user.I was going to raise an ApplicationException in the BLL and catch it in the web form code-behind, then present a message to the user. But from what I read, this is bad practice: http://blogs.msdn.com/b/kcwalina/archive/2005/03/16/396787.aspx
View 9 Repliesheavy operation which takes long time to be completed in my asp.net application. I don't want to run the entire operation in one request which may result in a TimeOut error. Instead I want to invoke the operation in a separate thread and poll for the result every x seconds. How can I do this?If the operation gets completed I need to register a script in the ajax postback to hide the loading panel and show the content. However I'm not able to register new scripts and invoke it during ajax postbacks.
View 2 RepliesHow can I auto add links which starts wtih http://
I wanna do this in my review post project !
I am trying to use a custom image for my textbox controls. In Photoshop I used an inner bevel. The only way I can find is to use the CssClass property and then use background-image in css. Problem is the text appears a few pixels to the top right in the box and is not very readable with the shadow. I need to center the text in the textbox. How can I do that?
View 3 RepliesI do not want to change the default settings for file upload, 4Mb is more than enough for the project I'm working on. After quite a bit of searching I found two approaches that were purported to work but neither one is preventing the "Maximum request length exceeded" error. The first approach[see ref. #1 below] performs validation with a custom validator and in code behind on the page that contains the FileUpload control. It doesn't work. The second approach [see ref #2 below] performs validation in the Application_BeginRequest event in Global.asax. The author stated that validation must be handled by this event. Quoting: "The way to get past is to use your Application_BeginRequest event to handle the problem.. This event takes place for each request to your application BEFORE the data has been completely uploaded. Here you can check for the content length of the request and then redirect to the some error page or the same page with some value in session or query string so that the page can show appropriate message to the user." Here is my code from Golbal.asax based on the above. As noted, this approach doesn't work either.
protected void Application_BeginRequest(object sender, EventArgs e)
{
const int maxFileSize = 4 * 1000000; // Slightly less than 4Mb
if (Request.ContentLength > maxFileSize)
{
Response.Redirect("~/FileUploadError.aspx");
}
}
One comment by a reader of the Global.asax approach was that the value returned by Request.Content.Length would include everything on the page, i.e. viewstate, image and text content, etc. I suppose one work-around would be to set the limit higher in web.config but validate for max. file size in code behind, but that seems kind of silly because I'm manipulating the uploaded files (images) to reduce the size anyway; storage space isn't the issue, performance is. Has anyone managed to solve this poblem?
I have a small table that has ratings for a album let's say.
Instead of showing the rating from 1-4 I want to show start instead
Rating 1 the 1 star
Rating 3 3 stars
Rating 0 no star
etc.
I have an tiny int field in the table and I will make a drop down list to allow 0-4
Currently I have a list view to show the list of comments and ratings but not sure how to convert the 0-4 from tiny int to a the same amount of stars
As the title says, I wan't to run some code when the application starts. I have a vague idea that there is probably an event in the application life cycle but I am a bit unsure and could do with pointing in the right direction. So how do I make code run when the application starts?
View 5 RepliesI have some controls, textboxes, etc with RequiredFieldValidators attached. When they are visible from page load, they work fine.
However, I want to start them as invisible, and on a button click, make them visible. The onclick event sets the controls to visible, but the Validators won't fire.
I need to generate a random number which starts fro 750000 and should increment one by one for generating other number.
ex: 750000
second it shoul dbe 750001
I am facing a problem that is i have developed a website in which diffrent people login from their respective systems but i have a problem which i want to ask is that when ever user close the browser i lost all informatioin and when user restart browser he /she has to provide password and username again i want to know how to use code to login them automatically if they were logon previously before shutingdown the PC
View 4 RepliesHow to replace the remaining String after the Comma Starts Using SQL Query. Below is the data
"MediaRights, MediaRightsLink, MediaRightsCompanies, MediaRightsTypes"
How can I make my application installed in my PC to start(ie., to popup for username and password) when I logged in to my PC, so that I can provide my username and password to the application and log in to it,similarly like gtalk that popsup for username and password once logged in to PC?
View 4 Replies I have the dropdownlists in UL. the entire Ul is in update panel. When the 1st dropdownlist is changed the second one is populated like a cascading dropdown.When i change the first dropdown the list starts from 0 instead of A :( this happens only in idiotic.IE I have the css as below
[code]...
Am i doing anything wrong or is this a bug in IE?
I am trying to do a department log in when my page loads, and the problem I have is when someone chooses the department and role from the combo boxes, the first click won't do it. The 2nd click does it. How come? My first click of the button seems to populatethe session but I don't know what's wrong. This is my code:
[Code]....
All of a sudden my debugging is taking forever to start on localhost (several minutes). It also takes a long time to return to the vwd after I stop debugging.
I haven't done anything that I can think of that would change anything (it has worked in the past, although the slow stop may have been there for some time.
The only thing I did was to add another user to the membership db.
I think it's a problem with starting the localhost development server.
i have two web aplications running on different sites.
1. site gets user information and show another website (2. site) in an i frame. but when i do this 2. site session starts again on every page.postback . if i connect to 2. site without 1. site everything works well.
I want to make domain lookup. I have found some examples on internet, make some tuning and it works well. :) The problem is "Regex.Replace(objSR.ReadToEnd()" get to my a full information about domain and so on, but all information I don't need, I only need the one line which starts with "Status", because other information is not needed for most off simple customers... I guess that it possible to solve this issue with "Readline()", but I can't understand how. Maybe,
Protected Sub btn_Click(ByVal sender As Object, ByVal eArgs As EventArgs)
Try
Dim objTCPC As New TcpClient(Request.Form("WhoisServer") & ".whois-servers.net", 43)
[code]...
I use for 5-Layer architecture and asynchronous Pages in my application(Presentation Layer,Caching Layer,Businnes Logic Layer,Transaction Layer,Data Access Layer) .I want to cancel Asynchronous Method if data was in cache.
View 3 RepliesI'm not sure if the topic describes my problem very well but I am creating some HTML elements (textboxes) on the fly with jQuery and I never know how many I will create (it loops through a database). I then want to get all the elements in the code behind and perform some actions (insert them into another database).
I know I can use
string n = String.Format("{0}", Request.Form["hiddenField0"]).ToString();
To get the first textbox but what if Idon't know how many textboxes I have created and want them all? Their name starts with hiddenField plus an incrementing number.
Is there a way to loop through all elements that has a name that starts with a certain string?