I have a cascade dropdownlist that is populated by client side using jquery and Ajax. The values of dropdown are read from database using Ajax. I get enableEventValidation error when post back occurs. One of my options is to use the page directive ableEventValidation="false". but I don't want to do it. so what's the soloution
View 1 RepliesWhat is the difference between enableEventValidation and validateRequest? Although the former is on postback/callback caused by a control (Server side only I assume?, the latter is on every request, which is caused by a control posting back anyway? Or would validateRequest kick in by a standard html link being clicked?
View 2 Replies<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" onrowediting="GridView1_RowEditing">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="btnEdit" runat="server" Text="Edit" CommandName="Edit" />
<asp:Label ID="lblFirstColumn" runat="server" Text='<%# Eval("FirstColumn") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="lblEditMode" runat="server" Text="This is Edit mode"></asp:Label>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
protected void Page_Load(object sender, EventArgs e)
{
DataTable dt = new DataTable();
dt.Columns.Add("FirstColumn", typeof(int));
dt.Rows.Add(100);
GridView1.DataSource = dt;
if (!IsPostBack)
GridView1.DataBind();
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
GridView1.DataBind();
}
If I change if (!IsPostBack) GridView1.DataBind(); to GridView1.DataBind(); and try to put GridView into Edit mode by clicking btnEdit, then I get the exception: Invalid postback or callback argument. Event validation is enabled using 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. But if I set EnableEventValidation to false, then GridView1 won't enter edit mode ( ie - GridView1_RowEditing doesn't get called ). BTW - same problem also occurs with other databound controls ( DataList, DetailsView ) Page. EnableEventValidation gets or sets a value indicating whether the page validates postback and callback events. When the ableEventValidation property is set to true, ASP.NET validates that a control event originated from the user interface that was rendered by that control. A control registers its events during rendering and then validates the events during postback or callback handling.
a) Why must postback and callback events be evaluated? and how exactly does evaluation happen?
b) Why would calling GridView1.Databind() on each postback cause exception when trying to put it into edit mode?
c) I also don't see any reasons why disabling EnableEventValidation prevents GridView from entering edit mode?! Thus why did.
What is the difference between validateRequest (which validates form and querystring values) and also enableeventvalidation, which works on post/call backs? In specific, what confuses me is that validateRequest can only be possible by a postback as this is how form values etc will be picked up?
View 1 RepliesI am using jQuery Vertical splitter in my application. I am getting error as Microsoft JScript runtime error: 'jQuery' is undefined.
And I am using this as follows..
[code]....
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 have few dropsdowns and a button in a page. When i click on that button , i get above exception. What is the best way to fix this exception? I dont want to set enableEventValidation to false in config or at page directive.
View 8 RepliesI have been using gridveiw to show uploaded files after that I have already put the new column to download these files. If I will put EnableEventValidation="true" and EnablePartialRendering="true"(ToolkitScriptManager), it is didn't work and error messages apperar like this:
Server Error in '/POV2' Application. 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. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page nableEventValidation="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. Source Error:
[Code]....
Stack Trace:
[Code]....
[ArgumentException: 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.] System.Web.UI.ClientScriptManager.ValidateEvent(String uniqueId, String argument) +173 System.Web.UI.Control.ValidateEvent(String uniqueID, String eventArgument) +72 System.Web.UI.WebControls.HiddenField.LoadPostData(String postDataKey, NameValueCollection postCollection) +46 System.Web.UI.WebControls.HiddenField.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection) +13 System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) +346 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1743
If I will put "false", it is okay, I can download but updatepanel is didn't work. So my page refreshed when I click any events.
i'm getting this 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.
for some reason i set enableeventvalidation to false but then, its giving me problem in FF 2.0
I am new to jquery in asp.net mvc2 and was trying to implment a simple jquery function like a show() function on my system but it keeps giving me this error:
"Microsoft JScript runtime error: Object expected"
this is my code:
[Code]....
Microsoft JScript runtime error: 'nodeName' is null or not an object in jquery-1.4.2.min.js It occures only with IE.
View 3 RepliesI am using jquery to expand/collpase a div that contains a menu but i get the following error only in IE 8 and maybe on all IE but have no way to test with older versions as I dont have one installed. I even upgraded to lates jquery library but problem persists. Other browsers work perfect.Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; InfoPath.2; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
Timestamp: Wed, 16 Mar 2011 20:25:37 UTC
Message: Object doesn't support this property or method
Line: 16
Char: 39490
Code: 0
Message: Syntax error
Line: 1
Char: 6
Code: 0
Message: Syntax error
Line: 1
Char: 6
Code: 0
Here is my code:
[Code]....
whats wrong with the below code, its throwing me an error of
Compiler Error Message: CS1002: ; expected
$(document).ready(function() {
$('<%=StartDate.UniqueID%>').datepicker({ showOn: 'button',
buttonImage: '../images/Calendar.png',
buttonImageOnly: true, onSelect:
function() { },
onClose: function() { $(this).focus(); }
});
});
<label for="sd">StartDate:</label>
<asp:TextBox ID="StartDate" runat="server"></asp:TextBox>
error
The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).
This works perfectly in Firefox but doesnt work in ie i get the following error "Line: 640
Error: Object doesn't support this property or method"
Here is my code
<asp:TextBox ID="calendardatedob" CssClass="calendardatedob" runat="server" AccessKey="n" TabIndex="4" MaxLength="40" /><span
class="req">*</span> e.g dd/mm/yyyy
Here is my jquery
$(document).ready(function() {
$("#ctl00_PageContent_calendardatedob").datepicker();
});
im referencing these
<script src="../../assets/js/jquery.min.js" type="text/javascript"></script>
<script src="../../assets/js/jquery-ui-1.8.custom.min.js" type="text/javascript"></script>
am getting objected expected error in my jquery how to reselove it.........i am try to redirect to login page when the session gets time outs.........
<title>ManageEmployeeProfile</title>
<% if (this.Request.IsAuthenticated)
{
int sessionDialogWait = 2 * 60 * 1000 - 60 * 500; // ms = 1.5 minutes
int sessionTimeout = 1 * 60 * 1000; // ms = 28 minutes
getting error in this part as 'Object Expected' in this part " $(document).ready(function () {" either i should add any thing in my page....
i am working on an mvc page that allows users to securely logon via a colorbox modal window. the modal is layed out something like this:
<html>
<body>
<div id="overlay" style="display: block;" class="overlay"> <div>
[code]...
thats the basic layout.what happens is when the iframe form is authenticated, it calls parent.$.fn.colorbox.close() which closes the modal and reloads the parent page.now the problem is the colorbox.close script is in the parent page (not the iframe) so it cannot be called from the iframe due to the protocols being different (https and http).so how can i either call the script cross protocol (which i believe you cant do) or from the iframe set the colorbox div's display attribute to none and hiding the overlay. this would hide the modal just as well but can the code in the iframe talk to the parent pages html? if it could i would use something like:
$('#colorbox').attr('style', 'display: none;');
but that jquery doesnt work.
i m trying to build a register page, which will show username is already there or not ?
[Code]....
here it works well on blue it send request to user.aspx page to chk user there or not
here is my user.aspx code
[code]....
whats wrong on that?
I want to check my jquery syntax somewhere. where i can check it? I am getting syntax error in my script
$(document).ready(function()
{
var date = new Date();
var d = date.getDate();
var m = date.getMonth();
var y = date.getFullYear();
var officerid = document.getElementById('officerid').value;
url = "/TasksToOfficer/Calender/" + officerid;
var currenteventIden = <%= serializer.Serialize( ViewData["iden"] ) %>............
I am using ASP.NET MVC for developing a web site. I am using jquery for AJAX functionality. In the action methods, I want to return some error to signal that the input is not correct or that the action could not be performed. In such error cases, I expect the jquery ajax error handler to be called and I can take appropriate action in there. I have not found a way how to do this. Following is my action method.In error cases, what should I be sending from an Action in order to get the jquery error handler triggered?
public ActionResult AddToFavourites(int entityId, string entityType)
{
if (!Request.IsAjaxRequest())
[code]...
I have a simple form and i'm using a jquery to load a data (partial postback)...$("#divbody").load("OtherData.aspx?ID=12"); The OtherData.aspx contains a Data that shows in gridview and using a querystring..BUT the problem is when I click a button (default.aspx) I got an error...The state information is invalid for this page and might be corrupted.
[Code]....
I am creating an application that uses jQuery to make ajax calls to ASP.NET WCF Web Service. Everything works fine most of the time but eventually (about twice per week) the service stops working with the error below. The only solution is to clear the ASP.NET Temporary Files. The problem seems to start by the time the application pool recycles but not on each recycle. Please help as I'm trying to figure this out for weeks now!
WebHost failed to process a request.
Sender Information:
System.ServiceModel.ServiceHostingEnvironment+HostingManager/6957828
Exception:
System.ServiceModel.ServiceActivationException:
The service '/Chat2/Chat.svc' cannot be activated due to an exception during compilation. The exception message is: Could not load file or assembly 'App_Web_vpupi5wr,
Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.. --->
System.IO.FileNotFoundException: Could not load file or assembly'App_Web_vpupi5wr, Version=0.0.0.0,Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.
So I am getting the following error in firebug regarding jQuery UI. It would be as simple if it was a matter of a process-of-elimination on the JS on the page, but there is allot of JS as well as some on the page and some on the site.master.
ERROR
(this.uiDialogTitlebarCloseText = c("<span/>"))
.addClass("ui-icon ui-icon-closethick").text(m.closeText).appendTo
is not a function
Is there a way in Firebug to see what javascript is the initial caller?
I have used jquery in one omy requirement. I would like to know why this breaking on jscript error will occur?
View 1 RepliesI was following one of the article for jquery tabs from following link
http://www.dotnetcurry.com/ShowArticle.aspx?ID=390
when i downloaded the code and run i am gettign a javascript error like this.appendChild(e)
[Code]....
I have a razor view in ASP.NET MVC3 application.This view has 2 partialviews PartialView1 is strongly typed and binded with the model.PartialView2 is not binded with the model.and this view consists of a collection of checkboxes.As part of validation atleast one checkbox must be checked to continue with the save.
Following is the jquery code that is giving me error:
Object does not support this property or method.
Error occuring at this line of code:
$("#form0").validate({ rules: { issueCheckBox: { selectNone: true}} });
Following is the JQuery code:
<script src="../../Scripts/jquery-1.4.4.min.js" type="text/javascript"></script>
<script src="../../Scripts/jquery.validate.min.js" type="text/javascript"></script>
<script src="../../Scripts/jquery.validate.unobtrusive.min.js"
[code]...
When I'm accessing web service from jquery, I'm getting the 403 forbidden error.. I published and created in the virtual directory too. Wat's the cause of this error and how to rectify it? I've added the webservice in the same solution.. This is my following code..
$(document).ready(function() {
$("#sayHelloButton").click(function(event){
$.ajax({ [code]....
I suppose using that url path for webservice is wrong.. I used the path 'DummyWebservice.asmx'. There I'm getting the 500 internal server error.