Javascript - OnClientClick Prevent Page Submission If Validation Errors?
Aug 8, 2011
I've written a JavaScript function which validates form input and highlights the input fields and displays any error messages, which I have tested and all works fine. i have called this function from the OnClientClick attribute of an asp:Button tag. However, if the JavaScript function determines there to be validation errors, I want to stop the form from submitting. How do I do this?
I am making my site compatible to all browsers.For that on one page i am selecting the name from dropdownlist and on click of VIEW(button),i want to open a new window .i also want to send the value and text of ddl on new window. all of this i want to do on onClientClick or onClick of button...
Now if I click the button it should open the iframe and display the message which I am able to do.Now the problem is how do I call the button1_Click event which is in the codebehind at the same time. I have used OnClick and OnClientClick event as shown below but it's not working and I'm not getting any errors.
I've noticed there is no OnClientClick() property for the radiobuttonlist in the ASP.NET control set. Is this a purposeful omissiong on Microsoft's part? Anyway, I've tried to add OnClick to the radio button list like so:
For Each li As ListItem In rblSearch.Items li.Attributes.Add("OnClick", "javascript:alert('jon');") Next
But alas, it doesn't work. I've even checked the source in firebug, and there is no javascript shown in the radiobuttonlist. I'm using ASP.NET control adapters so don't know if that has anything to do with it. (I wish asp.net/javascript would just work out the box!!!)
I'd like to know if there are other ways to write a submission program (submitting urls or pad xml to directories, submission sites, blogs) other than using the webBrowser. I've evaluated some shareware programs that submit urls or data very quickly, like 100s in a matter of mins. I couldn't write a program using a webBrowser because it might take 15 secs just to load the url. How are they writing the code??
I wrote a page Page method in my aspx page. in web service method I need to call FindControl method return textbox and get text box value. But my findControl will take MasterPage object to iterate.
see my code
<script type = "text/javascript"> function ShowCurrentDateTime() { $.ajax({
[Code]....
How to pass Master Page object or Page to Page method?. So I can use in Sared method.
Is there any way I can access Textbox value directly in Page method? I need access couple of controls in Page Method.
HOW TO RUN THE JAVASCRIPT FUNCTION ON PAGE ONLOAD EVENT IN CONTENT PAGE OF MASTER PAGE.? means i have masterpage and the content page of master page namely default.aspx in vb.net.i wanna run javascript function in Default.aspx and i have called the function body onload in master page.when i run my website it shows the error "" Microsoft JScript Runtime Error : Object Expected ""
I have a master page which contains everything that inherits it within a form. A page inheriting from it needs to run some javascript to act on a text field on a page. However, I can't seem to reference that text field through the javascript, since the form begins on the master page. The following line will come up bogus: document.form1.txtFindUser.value = blah.responseText; This is because form1 is defined on the master page, while txtFindUser is on the current page.
I am trying to create an input validation for my program to prevent the user from entering negative values. I've been using: If (decLabor < 0) Or (decPartss < 0) Then MessageBox.Show("Input prices for parts and labor must be positive")
I have a page that add Items to RadioButtonList with this code :
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) RD.Read() RBQ1.Items.Add(RD.GetString(3))
[code]....
When I click in any button in the same page, the entire page reload and it display 8 items in the RadioButtonList, If I click for the second time I get 12 items in the RBL...How can I prevent the page to reload if I click in this button. ?
I have a parent page and child page, both aspx. All is working, but now I would like to close child page, if user leaves child popup page and goes back to parent page and clicks on something else like page index of Gridview. I CANNOT close popup child page if user goes to another app, or some other location, I only want to close if something on parent page is changed.
I have the PageIndexChange Event set up for other purposes, I would just like to add some functionality, perhaps a script manager to close the child popup page if the Gridview index is changed, java or another way which ever works best.I think I might also need to check if the child page is even open.
I have a bit of code that jumps around a few domains and adds a user to each of them. This follow is a piece of code I had to write to get around the issue of the .add and .invoke being ran asynchronously and occasionally causing errors.
It connects to the domain in question, passing a "CN" from the code in as a search filter but receives a COMException which is normally a LDAP sting config issue. The connection string in this is fine so I am not sure why it is having such a hard time.
Function GetUser(ByVal UserId As String) As DirectoryEntry Dim objRootEntry As New DirectoryEntry objRootEntry.Path = "LDAP://DC=SERVER,DC=LOCAL"[code]....
I have this proyect where Im trying to do a program that concentrates all the Weather related links,information, and images in a single place, to make easier the job for a friend teacher whos a meteorologist.
the program per se does a lot of "parsing" of htmls, eliminating the information not needed and also download automatically certain images ( Satellite specially.. ) most of these images are... sort of hidding inside the html ( thus the parsing.)[code]...
I receive three errors using the following function:
Private Sub readWebpage(ByVal url As String) Try Dim req As System.Net.WebRequest = System.Net.WebRequest.Create(url) Dim resp As System.Net.WebResponse = req.GetResponse
[code]....
The remote server returned an error: (500) Internal Server Error. The server committed a protocol violation. Section=ResponseStatusLine
there must be a way to prevent the postBack then using the client side ) , i have a button when clicked it calls a javascript function from the code behind , but before it does this it post back the page , Question is : how can i skip the post back step and jump to the javascript part ?
<script type="text/javascript"> function hello(name) { alert("hello world from javascript " + name) return false;
Dim compiler As ICodeCompiler = New Microsoft.JScript.JScriptCodeProvider().CreateCompiler Dim params As New CompilerParameters params.GenerateInMemory = True
when User doesn't enter anything into textbox, inbuilt Required field validation fires. and displays * indicating it is required field but i want to change some css style to AboveTextbox when RequiredField event is fired. i mean i want to perform some task when Inbuilt requiredfield Validation fires. how can i catch or how can i know when Requiredfield validation fires?
I would like this ASP button control to stop calling its event handler when the JavaScript client method IsCorrectPrice() returns false.
<asp:Button ID="btnsubmit" runat="server" Text="Submit" OnClientClick="javascript:IsCorrectPrice()"/> btnsubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnsubmit.Click
I have built a vb.net web application. I have tried to make it secure, with all users requiring a password to get in. The only problem is that if anyone can guess (or detect using some kind of hacking tools) the url of the javascript file, they can download it and read it, without even having to log in first.
I am trying to validate a textbox based on a dropdownlist, e.g. if ddl value is 'Day', textbox value cannot exceed 31. It seems that no matter what I enter triggers my custom validator error, what am I doing wrong,
<asp:TextBox ID="uitxtCamLastVisitDur" runat="server" CssClass="tooltip" Width="65px" Enabled="False" ToolTip="Indicates a required spending on the member's last visit."></asp:TextBox>
I am using Synclock to prevent multiple threads from logging text messages to the same file at the same time, but this doesn't seem to work:I get frequent sharing errors on the logfile, within the synclock block.The Synclock is using the variable holding the filename, because it exists all the time and because it is always the same object, whatever class instance or thread I'm in.[code]Despite using Synclock and a Using block around the code, I keep getting this error in the sw.WriteLine(Msg) line:System.IO.IOException: The process cannot access the file '(filename)' because it is being used by another process.Should I use some other type of object than a string to synchronize on?I cannot use a user interface object (button or so) because it is a windows service project.It was written and compiled in Visual Studio 2008, but targeting the 2.0 framework because it has to be able to run on some old Win2000 machines.
How to apply textbox blank validation on button click inside gridview in javascript?I have a gridview that contains 2 textboxes and a save button in each row.I want to validate the textboxes on corresponding save button click.
I am currently adding keyboard shortcuts to our web application, so from JavaScript.So far, it has consisted mostly in triggering the click events of buttons already exposed in the user-interface.Now, I would like to add another one which redirects to another page.The new page URL needs to be generated based on elements from the source page query string.Basically, I have a date in the query string and I want to generate a new URL for the next day.
How to refresh a page from another page in asp.net?I have one page called Common.aspx.Once i click some button another page(Company.aspx)should refresh.How It possible?
I have an ASP button for which I have set the OnClientClick property to display a javascript confirm message. However, I only want this message to be displayed AFTER all of the client side validations have passed. How can I do this? Essentially, I believe that I need to force Page level validation from the client and then, only if it passes, display the confirmation box.