Javascript - Add Reset To Defaults Button To Asp Form But Avoid Postback
Sep 6, 2010
I have a couple of fields on a form that will be populated with default values. I would like to put a button that will allow me to reset those fields to their default values if they have been modified. However I would like to avoid the postback so that I don't have data being sent to the database. Is it possible to add a javascript hook such that when that button is pressed I can pull the default values and populate those fields in javascript?
I have a Username and Password field on webform and a Submit button.Username ia validated through database on button click.Each time when i click on submit button and if Username already exist then my password gets to be removed due to postback.Please give me some solution so that when i just defocus my username field it will automatically check and display message if it exists.Please donot give Textbox ontextchanged event with update panel in conditional update mode because it will not work for me because i am using devexpress tools on my webforms.
What is the easiest way to reset all the controls on a web form. Can I set "veiw state" to false for all of the controls with one command, do a response-redirect to its own page, and set view state back to true. What is the easiest way to do it.
I have a very vexxing issue. After installing a third-party application and add-in for VSTS 2008, it has corrupted my menus/buttons by duplicating/cascading these throughout studio (i.e. Multiple sets of each menu - File, Edit, View, etc, each of which has multiple submenu entry sets). I have tried to use Add-In Manager to uninstall it and removing the application (which added the Add-in to VSTS). I tried Tools->Customize and resetting the MenuBar and ContextMenu options as well. I tried running each of the following (closing and then reopening VSTS after each) from the command prompt, which completed but did not fix things.
My question then, does anyone know a way to reset the menus/toolbars for VSTS 2008 to their defaults or correct this some other way? I know I can unistalll both products and resolve this but I *really* want to be able to use the third party app (Red Gate's SQL Prompt).
when i click on button then postback happen but i stopped the postback. my code is follows.
[Code]....
here ShowDiv() function return false. another thing i notice that when i comment all the line in function ShowDiv() then postback is not happening. i just do not understand if i generate a div and add to page from javascript then why postback happening. tell me the solution to avoid postback when i will generate div from any function.
Call JavaScript function on GridView Row click using jQuery in ASP.Net works great!, but if I want to have a first column with an image button so the user can click only there to select a row it always produce a postback when using a button field, how can I avoid that postback while having an image button for the selection click in the gridview?
asp.net using visual studio 2008 3.5 framework with sqlserver 2008. I have a webform (derived from master page) so its a content form with content placeholder. It has two text boxes, dynamically populated checkboxes from database and 8 radio button groups. It has two custom validators attached with two of my fields also. I've tried every way to clear my form but its not working somehow. I've tried Control iteration method. Ive tried btnReset.Attributes.Add("onClick","document.forms[0].reset();return false;"); thingy...but none is working.
So I have an .aspx page loading up and populating drop downs based on a lookup table in the database. What we want is for the user to be able to configure which of these values comes defaulted by specifying that value in a drop down somewhere else in the app. Now, it's easy to default the "first" value, or something like that, but we want this to act differently. Is there a JavaScript function that can run immediately after onLoad (so the drop downs are populated already), that can go through the drop down and make one of those default so it looks like the page is loading with that set as default and people don't realize the workaround? (weird masking, etc.) I'm not TOO experienced with JavaScript so something like this may already exist. Here is an example of how we add the dropdown control to the page, in case you guys even need that.
With CType(.AddControl(New Controls.ComboBox("CodeId", "../../../../CodeId", "Code")), Controls.ComboBox) .ForceSelection = True .ValueField = "LookupID" .DisplayField = "LookupDesc" .Validate.AllowBlank = False .ForceSelection = True .ReadOnly = EditControl.IsFieldReadOnly(10580) .BindData(Model.Codes) End With
ive a simple webform where a checkbox enable the send button, this check is used for disclaimer agreement and has autopostback set to true; when a user insert all the required data to register, including his password and the check is clicked the password fields are reset to null because of the postback, i need to leave the check at the bottom of my module and consecuently the users most likely select it as last control.
(Using ASP.Net 2.0 on Visual Studio 2005, coding in C#)I write in the hope that someone will be able to provide a clue as to how I might best overcome this issue:I've got a form with 2 RequiredFieldValidators, and 2 buttons. Button 1 has 'CausesValidation' set to 'False', and populates some of the other fields on the form from the database (via a postback).Button 2 fires the validation, then if the form is valid brings a javascript popup confirmation box and then, if true, it puts the data in the form into an email.All this is working fine. However......My problem is this: If I press button 2 with my required field(s) empty, the form quite correctly refuses to submit, and highlights the appropriate field(s) with a red *.But: if I then press button 1 (my populating button) it DOES NOT FIRE until I press it a second time!Code snippet follows (markup only - I will of course post code-behind if nec. but I don't think it is)
<script type="text/javascript"> function ConfirmSubmit() {
I know that dynamic buttons and buttons in general don't use a typical postback and they post through the page.request.form. Okay, so in visual studio, I was able to determine that page.Request.form and in the all-keys property, i SEE my button there. It is the last item in all-keys.
When I am clicking this dynamic button which is in an updatepanel, the script below does not detect it as a button, it is still showing it as null:
public static Control GetPostBackControl(Page page) { Control control = null;
[Code]....
but here is the kicker, when I am traversing through the object, I am looking at the object C and the property 'ctl'. The ctl is showing me a value of "ButtonRow_0Col0" and it is of type string. This is good! But , the 'c' control object still says 'null'.
I'm using Javascript to create a DIV element and open up a new page by using onclientclick. This works great. Now, I need to write to it from the server side and this element must be created before it is posted back.
How do I get the javascript to execute before the postback?
Currently, I have to press the button twice because the element doesn't exist to write too on the first click.
To be clear, I need this to execute before the "OnClick" of the button.
Update: It looks like the Javascript function is called before the postback but the element is not updated until I run the second postback.
Update: Unfortunately it is a bit more complicated then this.
I'm creating a div tag in javascript to open a new window. Inside the div tag, I'm using a databinding syntax <%=Preview%> so that I can get access to this element on the server side. From the server side, I'm injecting the code.
I'm thinking this may be a chicken-egg problem but not sure.
UPDATE!
It is not the Javascript not running first. It is the databinding mechanism which is reading the blank variable before I'm able to set it.
I have two pages A.aspx and B.aspx Page A.aspx opens B.aspx as modal popup by javascript function window.showModalDialog("B.aspx"); Page B.aspx has two text boxes (Login, Password), <asp:Button> control and button click event in server code. Problem is when I click on the submit button it opens me B.aspx page in new third window How is it possible to not open new window on submit button.
My website has been created with a CSS/HTML frame work that has been integrated into an ASP.NET website. Inside of a ContentPlaceHolder, I have a simple login form. The catch is that I am using the onclick event of an image to submit the form. It normally works pretty straight forward, but this time I am having an issue.
I have to stick another form before the real form to make onclick="document['loginform'].submit()" actually work. This should not be the case, of course, but I was unable to find any solutions to it on the web.
I have two radio buttons that are disabled with javascript when the page loads. RadioButton1 is checked by default. When I click the button to do a postback, the RadioButton1 is no longer checked.
I have multiple update panels with various asp buttons on a single page. I want to disable the buttons which caused the postback in update panel untill it completes.
Is there a way to avoid using a third party control for this? through JQuery or any other method ?
I have a situation where i want to postback and redirect the user to the diffterent page wherever the user selects something from dropdown list. If the user presses the back button the in the browser the dropdownlist should be in the default state. i have already tried this code
protected void ddl_SelectedIndexChanged(object sender,Eventargs e) { int selecteditem = int.Parse(ddl4.SelectedItem.Value.ToString()); ddl.ClearSelection( ddl.Dispose(); //Even tried ddl.selectedindex = -1 ; //dosome postback i.e redirecting the user depeneding upon the value in selecteditem }
I have an application where the user scrolls down through a grid and clicks a SELECT button to populate some textboxes based on the content of the grid. On the return from the postback the selected row is out of sight because the grid comes back reset to the top within the scroll window.
Is it possible to have the postback return with the highlighted selected row visible rather than forcing the user to scroll back down to find the selection?
I have an Usercontrol which has a update panel that being postback by a timer, and it is nested in a parent page which has its own update panel. Every time that the update panel in UserControl cause a postback to server my main page's scrollbar being reset to top or buttom of the page. I enabled viewstate of parent page but nothing, and when enable parent page's MaintainScrollPOsitionOnPOstback it cause a problem for Usercontrol updatepanel postback !
I have a kiosk application that uses master pages. There is a refresh meta-tag on the master page (or I can add it programmatically using Page.Header.Controls.add(metaTag), it makes no difference for my problem). When the user does not interact with the aplication it should return to the default page. But when the user does react using async postbacks only a partial postback is performed which does not reset the html meta refresh header, so it just keeps on ticking and after x seconds the page redirects to the default page. How can I avoid this from happening. The meta-tag can not be in the updatepanel so even though I can manipulate it from the code-behind when the async postback happens, any changes I make (for example sometimes when the user makes a mistake he should be redirected to a clean version of the page he is currently on after showing a modal message, so I have to change the url of the meta-tag content to no longer use the default page, but the current page) are not implemented.So the main question is, how can I manipulate (or reset in case of refresh meta tag) meta-tags in an async postback ?
