AJAX :: Execute Animation On An Asp Button That Has To Execute Code On Postback?
Feb 15, 2011
I'm trying to understand how to execute AJAX animation on an asp button that has to execute code on Postback. In other words, I have button with code behind that needs to be excuted, but at the same time want to be able to have one of animation extenders be applied to it. I understand that I need to use the BeginRequest Event, I'm just not sure how, or which javascript commands to use to call the ajax animation so the postback will still occur.
I'm not sure if this is an easy issue to solve, but I can't seem to figure it out. I have a ModalPopupExtender (obviously) for a panel that contains a two labels, two textboxes, and two buttons (Ok and Cancel). What I would like to do is when the Ok button is clicked, the page post back and the server click event execute (along with normal page events). When I try adding "__doPostBack("ModalOk", "");" as the OnOkScript, the page posts back, but the click event doesn't execute. (the click event is Protected Sub ModalOk_Click(blah blah) Handles ModalOk.Click).
The only way I got it to work (which is fine with me, I just thought I'd ask why it isn't working normally) is by checking to see if the Request.Form("__EVENTTARGET") is equal to "ModalOk". If it is, then I call the ModalOk_Click() sub. Like I said, this is fine with me, but it should be able to be avoided. If the __EVENTTARGET is equal to "ModalOk", then the "Handles ModalOk.Click" event should automatically be called, shouldn't it? Following with the general problem here, how does the server determine which events (other than the page events) to execute (or at least which button.click event)? I understand that the __EVENTTARGET supplies what causes the postback, but if a button is clicked then __EVENTTARGET is not set. So then does the page check the Request.Form for a button? Or is it more complex/simple than what I'm asking?
When a user clicks a button I need to create a .bmp file on the server. After the .bmp file is created I will load it into the html page. Would Ajax be the best way to accomplish this?
I have a button where I use an Animation Extender. When I click the button I have to set OnClientClick="return false;" otherwise the Animation Extender closes. So that causes my problem. How do I execute server side code from this button? I have tried this code in my code behind, but there is an error:
Code: Dim strScript As String strScript = "<script>" strScript = strScript & "return false;" strScript = strScript & "</script>" ScriptManager.RegisterStartupScript(Me, GetType(Page), "MyScript", strScript, False) This is my code for the Animation Extender: Open data"></asp:Button>
I have a modalpopup with save button.. I gave some function in that button click.. But it is not working i mean the button click is not going to those codes. How can i make those code execute when clicking the button..
Basically i have two asp.net buttons on my asp.net page as follow:
[Code]....
and this is the code behand fo btnSave onclick event:
[Code]....
and this is the code behand of btnPreviwe onclick event:
[Code]....
as you can see, when the btnSave is clicked, it is programmatically clikced the btnPrevew first, and btnPreview registers and fires the required JavaScript. But actually once the btnSave clicked, it does go to the btnPreview_OnClick event, but for some unknow reasons, the javascript in btnPreview_OnClick doesnt work, however, when i just put cstext2.Append("alert('hi')" instead of cstext2.Append("'SaveSignature()'", the javascript does executed, and also if i modifed the asp.net code for btnPreview to this, it works too.
I have a drop down in an ASP.NET page. Whenever the value of the drop down changes an ASP.NET AJAX request is made to the server. I also attached a jQuery "change" event handler to that list to execute some code when the value is changed. So, probably two different event handlers are being attached to the same drop down, and it's causing some problems, i.e., sometimes wrong drop down values are sent to the server. I don't know why is this happening but I think attaching two different event handlers to a same drop down may be the reason.
Can anyone tell me what is the problem here? If what I guessed is true, then is there any other way to execute some custom javascript code before asp.net AJAX request is sent ?
In my asp.net application in one of the Page I need to create 3 Panels. These 3 Panels I had already kept in 3 Updatepanels. Now, Outside the UpdatePanels, I have a dropdown. Selecting the Value from Dropdown, those 3 panels will be populated from database.
Each of the UpdatePanels have their UpdateProgrees Control. Now What I want is that those 3 UpdatePanels should filled up one by one.
i want to display time on my screen and therefore i used timer control inside update panel and set my timer interval to 1000 but the time displayed after 3 seconds i mean 56 -53-52-49..... how to solve this below is the code
I am looking through a sql stored procedure which I might need to update in the near future. Basically the stored procedure is about 20 lines long. The stored procedure first builds a query
and stores it in a variable named "@Sql". And then for the last two lines of the stored procedure it appears that the big sql statement stored in "@Sql" is executed by using the "EXEC" command. See below. What is confusing though is that the query appears to be exectuted twice? Why was the query written in this way. Don't both lines do the same thing? Why is it being done twice? Could this possibly be a mistake on the part of the person who wrote the query. Below are the two lines I am talking about?
I need to run the HttpContext.Current.Server.Execute method in my ASP.NET application. This application has a WCF operation that does some processing. Currently, I am to do my processing correctly from within my WCF operation. However, I would like to do this asynchronously.
In an error to attempt this asynchronously, I tried running Server.Execute in the DoWork event handler of a BackgroundWorker. Unfortunately, this throws an error that says
"object reference not set to an instance of an object" The HttpContext element is not null. I checked that. It is some property nested in the HttpContext object that appears to be null. However, I have not been able to identify why this won't work. It happens as soon as I move the processing to the BackgroundWorker thread. My question is, how can I asynchronously execute the Server.Execute method?
So I have an ASP.Net web forms application that is using URL Routing. It works great on the old single server shared web hosting account. It has been moved over to a new platform that appears to be a web farm. When a postback happens it now just refreshes the page and the event handler is not envoked. Another thing I've noticed is they put the application into a sub-folder on the account and are using ISAPI Rewrite to point the domain to the sub folder.how to get the postback to execute on this web farm?
Basically I want to get some javascript to be sent back to the client and executed from a postback inside an UpdatePanel. Furthermore this is inside of a reusable WebControl. I've tried
this.Page.ClientScript.RegisterStartupScript and this.Page.ClientScript.RegisterClientScriptBlock but Firebug shows that those scripts aren't sent back in the postback's response.
I also tried straight up writing a <script> tag inside the control's main div in the Render method, which does get sent back but isn't executed. I got a hacky solution working, but ideally looking for a cleaner solution. The hack is to add a 1x1 pixel img with width/height set to 0 and use that for an onload event to execute the script and that works, but it seems like there has to be a cleaner way to do this.
I have a web app that needs to do two things at the same time. After a user clicks a button on the site, a javascript function needs to execute and while thats working I need the server side code for the button click to execute without waiting on the client side to finish.
To be more specific, the client side function takes about 23 seconds to complete, and while that is running the server side code promts the user for printing a document. So I need the javascript to run "in the background".
I have ASP code in asp page. I want to run the the asp code (preferable) from my asp.net page using vb.net or execute the asp page from my asp.net page using vb.net on page load_event.
have a gridview which has a delete linkbutton in 1 column, problem is that the click event for the button is not firing at all, the page does postback but the breakpoint wont execute and jump in the click event at all.
s it possible to execute a SSIS package in C# Code ? We can process cube using the namespace "Microsoft.AnalysisServices.AdomdClient". What will be namespace/method to be used for executing a package/task, if possible? This considers Script Task too, in SSIS.
