Call A JavaScript Method After The RequiredFieldValidator Fires?
Mar 1, 2011
Is it possible to fire a JavaScript method after a form element is considered invalid? Here is my scenario:
There are 2 tabs on the ASPX page. The user has to fill out info on both tabs. The user, while on tab 2 clicks the submit button. However, there is a required field on tab one that needs attention. Do I need to create a custom valuator (either a CustomValidator control or create a new control from the base valuator) to call a JavaScript function to display tab 1 and show where the error is?
I have an ActiveX object which extends some functions. I have a web page that loads the ActiveX object and calls its methods in Javascript. The ActiveX object has two method; the problem is that Javascript can successfully call one of them but fails to call the other; citing Object doesn't support this property or method which is nonsense because I made a VB6.0 application that successfully calls this other method, so the two functions are indeed extended correctly and performing their job. And yes, the Internet Explorer security zones are all set and everything, as I wrote above the javascript code can call one method but refuses to call the other.
[System.Web.Services.WebMethod] public static string GetStateData(string state) { //this is where i want to call a javascript method "GetItems" }
I have a javascript method that retrieves some values for me and I want to get use one of those values in my web method
function GetItems() { var variable1= $("#<%=Item1.ClientID %> input:checked"); var variable2= $("#<%=Item2.ClientID %>").val(); return [variable1.text(), variable2.val(), variable2];}
I've searched for ways to call the javascript method from the web method but every time my search results in how to call a web method from javascript.
I did find this but it was done from the code-behind of a silverlight project and when I tried adding the correct reference to my code-behind it wasn't there
var result = HtmlPage.Window.Invoke("GetItems"); Is there a reference I'm missing?
I need to call a c# server method through the javascript. I have a gridview in which i have a column with dropdown list. When i change the dropdown's value i need to call a server side method through javascript and change the value of another text box in the gridview.
I am able to do this on the selected index change. but i am slightly worried about the performance.
i just want to be able to call a javascritp subroutine on the client, after the server has done its thing (when an action completes or control goes to the view, i'd dont mind calling the js from the view either).
for some reason, even vs2010 doesn't let me put breakpoints in <% ... %> tagged areas between <script...> and </script> tagged areas. i for this reason can't figure out whats going on and how it's running things. here is what i've put in my view, and the javascritp should run, but it doesn't....
im just trying to call "RunOnceRoutines;" but it's not getting called!
the 2 questions: how on earth do we call javascript methods from server, and where is all this lovely javascript debugging i've heard about since vs2008? no where to be found!
I am using the application.master of sharepoint server 2007 as the master page for my application. i want to call a custom javascript method( OnLoadFun) that i have put in the PlaceHolderAdditionalPageHead asp:content section surrounded within script tags.
Since i can not put a body tag to call the method as onload=OnLoadFun() inside the asp:content, how do i call the mehtod during body load?
I tried writing window.onload=OnLoadFun; embedded with in script tag inside the asp:content main placeholder ..
Below is the function i want to call during page load....
In GridViewData.aspx.cs I have a method I want to call inside a javacsript function.
[Code]....
Now hears the kicker, I am mostly using jqUery as UpdateInsertData() is a jquery Call and works fine. How do I use ValidateNameUpdateable to call jQuery to return the value from the c# method. . I believe this issue is with my jQuery Call as its just posting and I need to do a $.get or something?
function ValidateNameUpdateable() { $(document).ready(function () { $.post("GridViewData.aspx") }); }
I have a web user control. That I load dynamicaly inside a modalpopup window using dynamic populate extender. User control has a external javascript file linked to it. Problem: I cannot make call to webservice method from this external javascript file. When I make a call -- servicename.methodname() I get servicename not defined error.
Adding a label control inside of a div will short circuit my image buttons onClientClick method call.
I have an Asp.net panel control. In that markup I have an image button control. My image button when clicked will not call my Java Script method unless the image button control is wrapped with a div or table <td> tag.
That is fine with me. However Just to the left of my image button I have a label control that must be on the same line/row of my image button. If I wrap both the label control and image control in a div or td tag then
my Java Script method is not called. So somehow wrapping the label tag with a div or td results in the short circuiting of calling my Java Script method.
Why is this? I must have my label and image button control on the same line, so that is the requirement.
I tired using a span tag instead of a div, but that does not work. Below is my Asp.net markup code.
I've inherited some code which breaks a page up into tabs using divs. On the first page there are many required field and regex validators. The problem is a user can switch to another tab, trigger a postback and fail the validators on the first page, leaving things in a mess.
What I want to be able to do is perform the validation on the first page as a user selects another tab, thus preventing them from moving to a new tab until the first page is valid.
Note use of jQuery for cross-browser compatibility with click event. And this only works if there are no validators on other tabs, as per Thomas' answer, I'll need to use validation groups and extra logic in isValid if any get added.
However, there appears to be no way to set the evaluationfunction property. I need to do this to call some custom script.Ive tried the following methods.Adding a new attribute when the control is rendered and when the attributes are rendered Calling RemoveAttribute followed by Attributes.Add Attempting to reset it via javascript.Nothing seems to work.If I can get a solution that works in the c# code to set the attribute before render that would be the best for what Im doing.
Is there any way to create a RequiredFieldValidator directly from JavaScript and assing the validation to a new created textbox, also created from javascript? I know how to create a new textbox or input control, but the RequiredFieldValidator is giving me problems.
I've got an odd situation with a text box and an autocomplete setup on my page. I'm using a JQuery based autocomplete on a text box that has AutoPostBack="True". This works perfect if I use the keyboard to select an autocomplete item, which then fires Jquery to fill in the text box, and then when I tab out of the box the AutoPostBack fires. If, however, I click on an autocomplete item, my text box loses focus first and the AutoPostBack fires before the Jquery has a chance to change the text in my text box. Is there a way to delay either the PostBack or the Jquery so that they don't fight each other? I'm thinking it may have to be the PostBack that gets changed, since the JQuery would lose it's state on the PostBack
