I have calender that connect to the db , when I click the day on calendar the group of artical show inside the datagrid, which have paging , but I get the erro like
[HttpException (0x80004005): Invalid CurrentPageIndex value. It must be >= 0 and < the PageCount.]
System.Web.UI.WebControls.DataGrid.CreateControlHierarchy(Boolean useDataSource) +2113
System.Web.UI.WebControls.BaseDataList.OnDataBinding(EventArgs e) +49
System.Web.UI.WebControls.BaseDataList.DataBind() +23
Cedars.Calendar4.LoadDataNews() +221
Cedars.Calendar4.Calendar1_SelectionChanged(Object sender, EventArgs e) +326
Everytime I run this with my form it says Invalid User.It acts like it looks up the information but returns a null reference or doesn't actually find what it is looking for.Any help would be extremely appreciated I've been stuck on this issue since Friday,asking for help in another topic on this forum.
I have a dropdown list that has a bind on it and I get this error. Why am I getting this error and what can I do to fix it. here is the code for the dropdown I currently have:
This has never happened before. It is not happening even in my visual studio. It is only happening on the live site. This never happened before on the live site either. I changed the master template but the change I made had nothing to do with the issue here. 3
[Code]....
Exception Details: System.InvalidCastException: Conversion from type 'DBNull' to type 'Integer' is not valid.Source Error:
When i tried to edit a record present in a gridview I am getting the following error "Invalid postback or callback argument.Event validation is enabled using <pages Enable event validation="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 server control that originally render them.If data is valid and expected,use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation."
I am getting the following error as 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. when an invalid value is passed in dropdown with autopostback=true. What should I do. I want the solution with "EventValidation=true" and "ValidateRequest=true" in the Page directives. Also without any Custom Error Pages Enabled in web.config file i.e Custom Error Pages are off in web.config file.
when sending email the' asp.net 2.0 i get the above error msg The remote certificate is invalid according to the validation procedure. how to rectify this error msg soemetmes i get this error msg also Mailbox unavailable. The server response was:: bosauthsmtp15: Host :No unauthenticated relaying permitted
Well the trouble is. when i fill my dataset it gets the first line in my excel sheet and put it like a colum title and make it an invalid line that i can't use any more.
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.
I have been receiving this error despite of the fact i have set the following inside web.config
[Code]....
The error description is as follows: Source: System.Web Message: The state information is invalid for this page and might be corrupted. Stack Trace:
at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) at System.Web.UI.HiddenFieldPageStatePersister.Load() at System.Web.UI.Page.LoadPageStateFromPersistenceMedium() at System.Web.UI.Page.LoadAllState() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.pages_aspx.ProcessRequest(HttpContext context)in c:WindowsMicrosoft.NETFramework64v2.0.50727Temporary ASP.NET Files oot2cade9c6ad55f41App_Web_pages.aspx.cdcab7d2.8ksggavg.0.cs:line 0 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) Data:System.Collections.ListDictionaryInternal Browser Capabilities IP Address = 212.235.106.121 Type = Opera8 Name = Opera Version = 8.00 Major Version = 8 Minor Version = 0 Platform = WinXP Is Beta = False Is Crawler = False Is AOL = False Is Win16 = False Is Win32 = True Supports Frames = True Supports Tables = True Supports Cookies = True Supports VBScript = False Supports JavaScript = True Supports Java Applets = True Supports BackgroundSounds = True Supports ActiveX Controls = False Browser = Opera CDF = False CLR Version = 0.0 ECMA Script version = 1.4 MSDOM version = 0.0 Supports tables = True W3C DOM version = 1.0
I have an ASP.net page with two textboxes where the user types in input. I applied a requiredfieldvalidator to both textboxes as well. However, I also want the textboxes to change to a backcolor of red if the form is invalid when the user clicks the button to submit the input. I tried this code below in tthe button click event, but doesnt work...
If Page.IsValid = False Then txtCosts.BackColor = Drawing.Color.Red txtRevenue.BackColor = Drawing.Color.Red End If
How else can I change the Backcolor of the textboxes when the input is invalid.......
I'm using an ImageButton inside a repeater with an ItemCommand. The repeater is used as a trigger to an UpdatePanel. The XHTML generated puts an 'ItemCommand' attribute in the <input> element corresponding to the ImageButton. This causes XHTML validation (using the W3C validator) to fail, because ItemCommand isn't a valid attribute for input.
I've Googled and found nothing about this, and the MSDN page assures me that asp.net generates perfect XHTML.
(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 have an image that was a gif and saved as a favicon.ico. I get an error when I build the project that says data is invalid for this. What does this mean? Is it corrupted?
I am getting this wired error when I try to add another control on my user control. Is there a limitaion on how many controls we can have on a single user control?
I have a user control in the sidebar(in my web site) for display title and picture of any of news. his usercontrol in all of the pages is observable. when user click on the picture navigate to the page News.aspx for more details. first time i can but in second time when i click on another picture in the News.aspx i get an error like below:
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. but when i reload the page the problem is solved my code is:
I have a page with some bound DropDownLists (DDLs) for a Call Logging system. The Calls are categorised on three levels for example:
Call: 3069, Category 1: Incident, Category 2: Microsoft Application, Category 3: Word would be used to organise calls for problems with Microsoft Word. On testing the system, I noticed that there was no handling for opening a call if the category had been deleted - say for reorganisation/systems no longer supported whatever. So I set about trying to make the program behave in the following manner:
Check category ID exists in DDL before bindingIt doesn't: set the displayed text of the DDL to Category Name + "(Deleted)"Disable the control to prevent user changingMove on to next control Seemed simple enough, however no matter which way I try and do it I always get the messase ddl_Cat1 has a SelectedValue which is invalid because it does not exist in the list of items. What's really puzzling me is that the exception doesn't seem to be being thrown in the code behind. I've gone through line by line from Page_Init and it never throws and exception. Just when the page loads this appears.
Does anyone know of a reason as to why this wouldn't work? (I've already tried setting the selected value to an existing item, adding a new list item with the value and setting DataSource property to Nothing - in all different combinations.)
The question has probably been raised many times, but I could not find an answer so far.The error is: ropdownlist has SelectedValue which is invalid because it does not exist in the list of items.However, I have debugged the values and the list has the correct list of values which includes the SelectedValue.
I have a datalist which will display a list of groups from the database. In every group record, i have a button binding to it, and i give it a commandName call "joingroup" . When a user actaully clicks on the button(btnJoinGroup), the commandName fires. The problem i am facing now is, whenever i click on the button, i get this error below:
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.
