Web Forms :: Avoid Button Click Event On Page Load Event?
Dec 28, 2010
i have an form with an button and some input controls. some time due to input problem i may get error after that if i refreshed the page then that time the button click event has fired, how to avoid this kind of bad event fire.
public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) if (!IsPostBack) // If page loads for first time Session["update"] = Server.UrlEncode(System.DateTime.Now.ToString()); // Assign the Session["update"] with unique value [code]...
I just discover why some validation is working bad on some of my forms: the button click event is being called before page load.
What I need for good is (I consider this is a normal cycle of events):
The user press a buttonSome validation occurs at client side (js function returns true if success)Some validation occurs at server sideThe page loads again showing the results But this is what I get (BAD):
The user press a buttonSome validation occurs at client side (js function returns true if success)The page loads showing no results, because server validation hasnt happened yet Some validation occurs at server sideThe page doesn´t loads again and I cant see the results, so my client cant know what happened on the server side
I will describe my problem in simple way so it's not exactly what I'm trying to do but the idea is the same.Here is the problem:
I create dynamic buttons from code behind.I get some id from query string,create button with that id ,dynamic add event handler to click event,and add button to placeholder.I store the list of id-s in session and in page load method recreate these buttons and add to placeholder.One of the id-s is CurrentId and it's also stored in session.Buttons click handler do something like this
In page load when I create buttons I want to set button text property different from others if id==Convert.ToInt32(Session["CurrentId"]) when list of id-s are gotten from session.But problem is that click event handler is called after page load,and when I create buttons in page load ,CurrentId in session hasn't been channged by click event handler.Can you suggest any solution to this situation?
I am also facing some issues with Back Button of Internet Browser as well. Actully Page Load event of my page is not firing when i click on Back Button of Internet.
I haveMaster Page -> ASPX page -> User ControlUser control page is contains all dynamic bind controls (e.g Repeater) depended on ASPX Page (Only one parameter say ItemNo)The problem is, if I bound user control on page load event with passing respective parameters then it's create to much view state (I checked source file and it's almost 1.5 MB)In other way if I put one textbox, and a command button and I pass required parameter on button click and load the control then page size is ok (I checked and it's < 500KB)
1. I need to load a user control on link click event of a link button during postback of aspx page.
2. On button click event of a save button on that aspx page, I need to read the selected values from that user control on further postback.
If I write the loadcontrol code in link_click event, the control is not recognized at all in the button_click event. When I shift it to page_init and execute only during not postback, the user control loads with default values.
i am currently developing an asp.net project. there is a previous, next, and cancel button that the user can utilize, but the problem is that everything is broken into controls so that if they hit the browser's back button it will reset everything and take them to the very beginning. i would like to capture the onbeforeunload event and trigger the previous button click event (i.e. treating navigation like clicking the previous button).
I have a textbox with autopostback=true and a button to save the data in the form. Functionality works fine when entering a value in the textbox, tabbing out of the textbox and clicking on the save button. But issue comes up when entering a value in the textbox and directly clicking on the save button without tabbing out of the text box. In the second scenario, only textchanged event fires and save click event dosen't fire. What I was expecting was after exection of textchanged event, save click event should also fire. But this is not happening.
I am updateing my gridview using button click event but at the fisrt time it does not get updated first time but its works second time i dont know why . Dol u know how to genterate two button click event for the same button.Records never get updated on first button click event but its works on second button click  event.
I have one Button (Refresh Button), One ComboBox (containing DEV and UAT as its items) and a GridView on my asp page.
I am filling up my Grid with values from database on the ComboBox's 'TextChanged' event and Buttons's 'Click' event.
First time when page is loaded, there is no information in the grid, but when i choose DEV/UAT from the ComboBox 'TextChanged' event is fired, the grid is filled with the relevant data. That is what i want.
When i click the Refresh Button to refresh the data again, first comboBox's 'TextChanged' event and then 'btn_Click' event is fired.
I want then when a button id pressed only 'Click' event to be fired and not the ComboBox's 'TextChanged' event.
I want a confirmation password message box on a click button event. if password is correct then it will perform some business rule action. other wise it will show a message you are authorised for it.the button will be server side control at the webpage home.aspx
in my web form i have a department dropdown box, in its selectedIndexChanged event i have to fill the equipment dropdown box and in equiment dropdown selectedIndexChanged i have to fill out the other textboxs.
the depratment dropdown box get its value from sqldatasource.
[code]....
what i want is when i run the page, it shows the very first deparment in the list, and according to that it should pop up the values in the other fields, means it should show the values in the equipment dropdownbox and from that one it should pop up the values in the other textbox.
here is my selected indexchanged event for department dropdownbox
I've found posts about making a click event with jQuery for a button, however I need a little more then that. When any postback occurs on a page, I need to fire off a jQuery click event. Based on a condition, I want to continue processing (including running the server-side event code after the jQuery code), or, perform a redirect. I'm not quite sure how to go about this.
I have a button which starts processing. I want that when ever a button is click from page1.aspx .. a count down timer should start and displayed on page2.aspx. I am thinking of using iframe to join 2 pages.
I have page on which I've a login control in which I've a subnit button. The problem is this that when I refresh the that page the submit button or any button that was clicked last before page refresh gets its click event automatically fired.
I have a Asp:modal (AJAX) that works fine on a master.page
When i then add an asp:menu with sitemapdatasource, then the page works fine first time at page load, but if i then click the btn that trigger the asp:modal i get this error
[URL] ....
What I want is that the user can write an email in a textbox on the masterpage and then hit a btn, if the email is valid 100% the event is trigged and the asp:modal is showed, its works fine when i dont have a asp:menu on the masterpage, but when i then add the menu, then the pages works, but when i will trigger the asp:modal then i get the error.
I am using ASP.NET 2.0 with C#(No AJAX) in my project. In a particular web page, when the a button is clicked, some server intensive processing occurs before the same page is displayed again with the results. While code execution happens on the server in response to Button_Click event, a blank white page is shown to user on his browser in between post backs.
How do i show a message in this case, that the processing is still going on and ask the user to wait.
I have used javascript to show a message on page unload. But this message is also erased when the page is posted back to the server and the user sees a blank white page on his browser. How do i avoid this white page? Is there a way to show a message in the blank white page ?