I have a form that when you click a button, an ajax RadWindow opens with a text box and a button so it can scrape information from another web page. I have set the button that causes the postback to CausesValidation="False", but after it does the postback after loading the scraped information into other controls, it still causes validation to fire.
how to make it not fire the validation?
I am using a MultiView inside an UpdatePanel with several views within it and a button on each that is supposed to validate the controls on the current view before moving onto the next view in the sequence (a bit like the Wizard control except I wanted more freedom).
I am using an LinkButton but the problem is that the LinkButton is not causing validation -- I have also tested with an ImageButton which isn't causing validation either. However, when I use a normal Button, the validation does work. I have grouped my validation controls into a ValidationGroup and made sure that CausesValidation is turned on.
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I have an HTML text box and button:
<input type='text' onkeypress='onEnter(this, event);' />
<input type='button' />
This works fine (when you push enter, another function is called) unless the page has a FormView control on it.
In this case, pushing Enter in the textbox above attempts to validate the form on the page. It will still correctly call the onEnter function, but I need the Enter keypress to not cause Validation of any other forms on this page.
All input fields in the FormView are part of a ValidationGroup, but this doesn't seem to affect anything.
What is the best way to keep the .Net validation from happening when I push Enter in my HTML textbox?
Has anyone encountered while using Context.RewriteUrl in global.asax causes this error: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster ?
Here is the scenario, let's say I have a url
http://mysite.com/admin/login.aspx instead typing the whole url in address, user can type either
http://mysite.com/admin/ or http://mysite.com/admin which all end up at http://mysite.com/admin/login.aspx. When a user type http://mysite.com/admin and entered correct login info, and press login button it gets the error above. How can I resolve this? Tried setting EnableValidateRequest to false and EnableViewstateMac to false also even I do not want to use this approach and still does not work.
When i click on the Search Button OR the Count Button, i get BOTH error messages - why ? I should only get one error message.
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I'm having trouble with an image button I create via c# in an event causing page validation to occur on postback. The CausesValidation attribute is set to false at time of creation in the event. I also wire up the Click event in the page_init with postback so not to loose the event handler if the page posts another way. Here is the code I'm using in the click event of a Button. I've also tried to enable and disable viewstate for the button with no luck. What am I missing here that continues to fire page validation in the Click of this imagebutton?
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I have used a pattern of compound view models for a few of the forms in this project. It works very well.
In this case I have a VendorAddress view model. I use Address(es) in a few places in this project so I made and Address view model object that I can re-use. Then I desided I want to do a very thorough checking of the state codes and zips so, I desided I would try to use remote validation and check the state and zip code aganst a stored set of tables in the database.
The problem is I am not getting values back to the remote action methods for the fields I'm asking for (in this case State and PostalCode). I believe this is because of the name mangleing that the MVC framework does for compound or sub types for id(s) for the inputs in this case it is making names like 'Address_Line1' and 'Address_State' and 'Address_PostalCode'.
Ultimately the question I have is, is there a way of turning off the pre-pended 'Address_' from the base view model object in a way that MVC framework can put it bak into the object after ther post of the form?
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Then in the form after rendering it looks like this:
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I get the remote call but there is nothing in the parameters "State" and "PostalCode", so the unobtrusive routines are firing but I think it does not know where to look for the data even though I have type something in the mensioned fields. As you can see in the rendered code the id="Address_State" and the data-val-remote-additionalfields="*.State,*.PostalCode"
I have a user control with linkbuttons (used for paging) and a repeater inside an update panel. The paging works correctly, but is causing a full page postback every time I click through to the next page.
The update panel looks like this:
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So far, I have tried adding an async postback trigger for the user control, which does cause an async postback but does not update the rest of the text in the update panel. In otherwords, the async postback occurs and the next page shows up, but the original text in the repeater is there as well just below it.
I have also confirmed that I have IDS set on my linkbuttons, since that can trigger a full postback inside an update panel.
I have tried changing the update panel mode (Always, Conditional, ChildrenAsTriggers, etc.).
None of it makes a difference - the only thing that actually causes an async postback is to use the trigger, but then the rest of the content in the update panel is not updated, so I get duplicate content.
OK, here's my scenario. I inherited a website and I'm dealing with a quirk. I have a page that has a repeater with auto postback controls in it. And also a hyperlink or a button to open a RadWindow to add a new item or edit an existing one, the repeater probably could have been a Gridview, but forget that for now.
If you use the button to add a new entry or the hyperlink to edit, it works fine and closes and refreshs the page. BUT, after you click ANY of the auto postback check boxes and THEN try and use the new button or edit hyperlinks the RadWindow works, but on clicking SAVE or CLOSE it throws a dialog box in IE and Firefox letting the user know that:
"To display this page, Firefox must send information that will repeat any action (such as a search or order confirmation) that was performed earlier."
IE's message is similar. Clicking RESEND works fine and everything is ok, but its a bit distracting to the user. The RadWindow open a page that has THIS javascript in it:
function RefreshParentPage() {
I am using the URL Rewriter (Intelligencia.UrlRewriter). I have a page with the name sitename/user/search.aspx and the rewrite is sitename/test/search Now the problem is... When I am on sitename/test/search and I click the search button, I get an error "The resource cannot be found." because when the page posts back to itself, it goes to sitename/test/searchsearch.aspx basically putting the original name in the URL which messes everything up. What should I do? Some pages do it and other pages do not do this problem with me.
View 2 RepliesI've got a template field in a gridview that contains just a simple button...
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Administration.aspx.cs"
Inherits="Administration" %>
<%@ Register TagPrefix="ajaxToolkit" Namespace="AjaxControlToolkit" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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Whenever I click the button I get the error...
Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.
I've found a decent amount of articles referencing this issue, including a couple on SO, for example...
[URL]
and...
[URL]
I might just be misunderstanding, but as far as I can tell they don't really help me. How do I get this to go away without setting enableEventValidation="false"?
I have a boolean / bit value in the database called "is_paid". Depending on this value I want to Disable a button. (the same would go for example to set a textbox not Visible, but anyway)
What I want is to Disable the button, if my boolean is 1 (true).
First I tried to convert my boolean value to text:
<asp:Button
ID="btnCalculatePayment"
runat="server"
Text="Submit"
onclick="btnCalculatePayment_Click" Enabled='<%#
Convert.ToBoolean(Eval("is_paid")) ? "False" : "True" %>'
/>
But got an error:
CS0030: Cannot convert type 'string' to 'bool'
However, if I use it one a Label it works fine: <asp:Label
ID="lblIsPaid"
runat="server"
Text='<%#
Convert.ToBoolean(Eval("is_paid")) ? "True" : "False" %>'></asp:Label>
So another trial I did was to CAST the data from the database to be the text that I want, like so:
SELECT not_paid = CASE WHEN is_paid = 0 THEN 'True' WHEN is_paid = 1 THEN 'False' END ....
And my code changed to:
<asp:Button
ID="btnCalculatePayment"
runat="server"
Text="Submit"
onclick="btnCalculatePayment_Click" Enabled='<%#
Bind("not_paid") %>'
/>
But got this error:
System.InvalidCastException was unhandled by user code
Message=Specified cast is not valid.
Source=App_Web_absjd3ob
StackTrace:
at ASP.manager_aspx.__DataBinding__control74(Object sender, EventArgs e) in c:Documents and SettingsAdminMy DocumentsVisual Studio 2010ProjectsWebManager.aspx:line 219
at System.Web.UI.Control.OnDataBinding(EventArgs e)
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBind()
at System.Web.UI.Control.DataBindChildren()
So I wonder, is it possible to change the "Enabled" property based on by boolean value?
I've got a custom control with asp:hyperlinks that's causing validation which I don't want... Is there anyway I can stop this from happening?
View 1 RepliesSince last week I've had a really odd issue with PageMethods and the back button which i've never seen before.
Essentially, I have a 'home page' which on document.ready (using jQuery), loads some data through PageMethods, and then renders a list - from which you can click through to a details page about the item. In general use, it works fine. However, using the back button after clicking through (ie: going back to the home page), it throws a PageMethods error. The browser's 'authentication required' prompt appears, and if you click cancel, the server returns a 401. The error returned by PageMethods on the client side is 'authentication failed'.
Just FYI, the application is using ASP.NET forms authentication. The weird thing is, this happens as soon as you click the link and click back. It's not like the authentication cookie has expired or anything, and if you click cancel when the prompt appears and refresh the page, it works fine. I just can't work out what is going on.
I've tried disabling caching on the page [as I thought it was something to down with some browsers' caches of the DOM), but the same thing happens.
One workaround i've had is to redirect the page to itself if the PageMethods error is 'authentication failed', which does work - but only when you cancel the authentication prompt. Obviously the prompt appears, which is not ideal.
I don't understand it, and the user is clearly authenticated. Does anyone have any idea which might be happening?
It's happening in Chrome, Firefox, and IE.
I have a link button inside a template field of a gridview. The gridview is wrapped in an update panel. I want the link button to fire an async postback but it always fires a full postback. Why is this?
This is a similar problem to the one described in the link below. However, I have tried doing a RegisterAsyncPostbackControl in the gridview databound, but this did not work.
[URL]
I have few controls which r validated for blank on a page having 5 buttons
I want the validation to take place only on save button click & not on any other button
<asp:ValidationSummary ID="ValidationSummary1" HeaderText="You must enter a value in the following fields:"
EnableClientScript="true" ShowMessageBox="true" ShowSummary="false" DisplayMode="BulletList"
runat="server" />
Since last week I've had a really odd issue with PageMethods and the back button which i've never seen before. Essentially, I have a 'home page' which on document.ready (using Query), loads some data through PageMethods, and then renders a list - from which you can click through to a details page about the item. In general use, it works fine. However, using the back button after clicking through (ie: going back to the home page), it throws a PageMethods error. The browser's 'authentication required' prompt appears, and if you click cancel, the server returns a 404. The error returned by PageMethods on the client side is 'authentication failed'.
Just FYI, the application is using ASP.NET forms authentication. The weird thing is, this happens as soon as you click the link and click back. It's not like the authentication cookie has expired or anything, and if you click cancel when the prompt appears and refresh the page, it works fine. I just can't work out what is going on. I've tried disabling caching on the page [as I thought it was something to down with some browsers' caches of the DOM), but the same thing happens. One workaround i've had is to redirect the page to itself if the PageMethods error is 'authentication failed', which does work - but only when you cancel the authentication prompt. Obviously the prompt appears, which is not ideal. I don't understand it, and the user is clearly authenticated. Does anyone have any idea which might be happening? It's happening in Chrome, Firefox, and IE.
This is likely a n00b question, but I can't seem to find any info on how to solve it. Here's the scenario:
I have a Textbox and a RadioButtonList in an UpdatePanel, both with AutoPostBack turned on (they need to be, can't turn it off on the text box))
The user enters some text in to the textbox, then clicks one of the Items in the radio button list.
Because the textbox post back is executing, the radio button is losing the value that the user selected.
How can I workaround this?
I have a simple button on my form (A UserControl Form). What I would like to do is pop open a RadWindow when the button is clicked . What currently happens is a window opens and then closes, almost immediately.
I have the code below in my code behind
Private Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init
BtnGenerateReport.Attributes("onclick") = " return GenerateSelectedReport('" & intPrimaryKey & "');"
End Sub
And on the client side, I have
function GenerateSelectedReport(reportid) {
var wlink = "Popuppage.aspx?intRptKey=" + reportid
window.radopen(wlink, "REPORT GENERATOR");
oWnd.center();
return true;
}
I have a radMenu on the main site.master form which shows on a page. The page has a radGrid with a button to open a radWindows that shows a report. When the radWindow opens everything works great but the radMenu shows through onto the Window. How do I prevent the menu from showing through on the window.
View 2 RepliesI have a RadPageView which I use with a RadMultiPage and RadTabStrip inside of a RadWindow. The problem is that my RadPageView does not stretch to fill the RadWindow. I set the Height and Width to 100%, and for the Width it works fine... (when I resize the window, the PageView is also resized). However, the height of the PageView only stretches down to the height of the controls that it contains. I spent a lot of time playing with the properties trying to get this to work... Is there an easy way to achieve this? Or do I have to handle client side OnResize events... It works for the width though.. shouldn't it be easy to also work for the height?
View 1 RepliesI have a parent page that launches a telerik radwindow and passes it an argument.
Once the radwindow is done processeing the value, I need it to return it to the parent page, and I would like the parent page to have access to this value in my code behind page.
I have tried to pass the value to a hidden field on my page and then trigger a page refresh and my code behind watches to see if the value is working.
I can't seem to get this to work. I get the return value in the parent javascript, but i can't get it from my hidden field from the code behind.
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I have a databound Gridview (with a LINQ datasource). The gridview displays questions from the SQL DB to the user. I've inserted a radio button list into the gridview with 3 horizontal radio buttons with fixed values of 1,2,3 for the user to select. I have a question ID, a tempuserID, and AnswerValue columns set up in the database. It all works nicely.
After the user selects radio buttons, I would like for them to push a button to submit the QuestionID, the associated Radio Button Value (AnswerValue) and their tempUserID into the DB. How do I do this? I'm not sure what to do next and what VB/LINQ code to put in the code behind file in the button click event handler. I'm also not sure on what to use for the tempUserID, can I use the sessionID? I'm using VB and here's my code:
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I'm trying to do a validation for checkboxlist on a server side as all java approaches didn't work. However, probably due to the checklistbox is inside a listview the FindControl is empty. how to find a control inside a listview on a button click event when the button is outside of the listview.
<asp:CustomValidator
ID="rfchblAnswers"
runat="server"
ErrorMessage="* Please, select at least a one checkbox."
OnServerValidate="cblCustomValidator"
EnableClientScript="false"
ValidationGroup="EnterData"
Display=
"Dynamic" />
Public
Sub cblCustomValidator(ByVal objSource
As Object,
ByVal objArgs As ServerValidateEventArgs)
Dim chblAnswers As CheckBoxList = _
CType(lv_qstns.FindControl("chblAnswers"), CheckBoxList)
If CType(lv_qstns.FindControl("chblAnswers"), CheckBoxList)
IsNot Nothing
Then 'it's not working here as it cannot find the control inside a listview
Dim boolFlag As
Boolean = False
For Each li
As ListItem In chblAnswers.Items
If li.Selected Then
boolFlag = True
End If
Next
If boolFlag Then
objArgs.IsValid = True
Else
objArgs.IsValid = False
End If
End If
End Sub
I have some code about popup and validation ..
I want to do: when I was clicked the btnSubmit if All texts are empty popup will show !!!
My code is here ;
<html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI Drop Effect</title> <link rel="stylesheet" href="css/drop.css"> <script type="text/javascript"> function ValidateDropDown() { var value = document.getElementById('<%=TextBox1.ClientID%>').value; var value2 = document.getElementById('<%=TextBox2.ClientID%>').value; var ddlVal = document.getElementById("DropDownList1").selectedIndex;
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