Is there a simple way to clear the value of server controls on postback? I have tried ViewState.clear() and it doesn't do anything. The page I am working on inherits from a Masterpage that has viewstate enabled.
View 3 Repliesi have two radio button list on my page on my Frist Index there is a panel with Drop Down List and on Second Index there is a static variable in which i am storing value as Pending
now as soon as i select my Second RadioButtonList it also stores the DropDown List Value
how i can clear the DropDown List Value?
My Code
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My Page Source
[Code]....
Whats the easiest way to clear an asp.net form at runtime using c#.
View 2 RepliesFor many of the Ajax ControlToolkit, a post back causes a lot of screw up with these controls. One example is the MaskedEditExtender. I have a webform that has various parts which depends on a RadioButtonList control option. Some part of webform maybe hidden or shown base on what option the user chose from the RadioButtonList control. The RadioButtonList control is set to autopostback. Let's say there is the txtDate textbox that regardless what option the user chose from the RadiobuttonList control, it will always shown on the webform. Let's say the user type in 2/5/2010 on the txtDate control but later on decides to pick a different option in the RadioButtonList control. After the autopostback from the RadioButtonList control, the txtDate that contained 2/5/2010 is now wiped out or cleared. So, my question is, how do I prevent this from happening?
View 1 RepliesI have a form that takes the user information. When the user submits the form, after the postback, I need to get all some of the textboxes in the form cleared. I tried disabling the ViewState and ViewStateMode. But both of them failed. Also tried disabling the cacheability for the page. I know I can clear the textboxes on the page load event. But I am curious to know if there is another way to do this.
View 7 RepliesHTML has an input button type to reset all fields in a form to their initial state in one step: <input type="reset" ... />.
Is there a similar simple way to reset all form fields of an aspx page from code-behind? Or is it necessary to reset all controls one by one with TextBox1.Text=string.Empty, TextBox2.Text=string.Empty, etc. ?
Update:
Context is a simple Contact/"Send us a message" page with 8 asp:TextBoxes on the page (where the user enters the name, address, phone, email, message, etc.). Then he clicks on submit, the Onclick message handler in code-behind sends an email to some administrator, and all the form fields the user filled in should be emptied and he gets a notification in a label ("Message sent blabla..."). I want to have the form fields cleared to avoid that the user clicks again on submit and the same message is sent a second time.
I have the problem with dropdownlist value inside gridview.my problem is i have textbox,button with two dropdownlists, dropdownlists are inside gridview.Two dropdownlists are one is ddlcountry and another one is ddlstates. if i select country from ddlcountry , country related states comes in ddlstates. after entering first record value in textbox then button click textbox value is shown in gridview with two dropdown lists dropdown list, after selecting one dropdownlist country and states, i enter second record value and button click then only country selected value visible ddlstates selectedvalue not visible in first record in gridview...
View 1 RepliesI have a contact form inside of an update panel so I don't get the page flicker. Once the form passes validation and the email sends, how do I automatically clear the text boxes?
Here is my C# code:
[Code]....
I am using asp.net 3.5 and use master pages for most of the website. I need to make sure that users after they logout are not able to use the back button to see in cache data.
View 4 RepliesI have a web form used for importing data from a CSV file. It contains a result panel and a result label, which either show a success message or an error message after the import process. Let me say here I know the page should not be doing the import, but this is legacy code and the client expects only small changes.
My problem is that the result message (label) retains it's previous content and visibility during the next import process, because clearing it during Page_Load or at the beginning of the import method only has effect when the import method is complete and thus the postback is complete.
At the moment, the only solution I can see is to move the import code into a separate class (as it should be), call the import method asynchronously, clear the result message, and thne set then result message when the complete or error callback from the import process is called.
I have a form containing 7 fields and I want that when i press submit button all the fields are cleared how can i do this? In my form when i click submit fields not clear until I refresh.
View 1 RepliesI have one issue on my localhost running website that is when i submit data from asp.net form . it don't clear the data permanentaly from the page history.like , i submit one record and after this one i double click on the textfields the previous values are shown ?
View 1 Repliesi am using html input fields for inserting data to db e.g.:
<input type="text" runat="server" ClientIDMode="Static" id="StreetNo" class="form-control input-mask-phone"/>
and a submit button for submitting all data :
<button class="btn btn-info btn-block" style="height: 40px;" OnServerClick="SubmitProject_OnServerClick" ValidationGroup="Date" type="button" runat="server" ClientIDMode="Static" id="SubmitProject"> Submit </button>
also i am using an update panel to trigger this button click event ( to avoid postbacks and page refreshing ) . i want to clear out all my fields after submition of data , but it won't happens , even i tried on submit_click's event also , i did :
/// after submittion
StreetNo.Value = string.Empty;
but nothing happend ..
I have a page with a ScriptManager / UpdatePanel. I currently need to PostBack to a https page from an http page (different ports). I also need the same session data. Currently, I copy my form to a new form, and when I postback to my new Target on a new Port, I get a crash in xmlHttp..something. I will have to post more details later.
I'm currently wondering if this is possible. And does anyone know of such a fix. I even tried to Turn off Partial Rendering and I still get crashes. I can't do this until I pull out the scriptManager / UpdatePanel.
I have create user wizard control and i put validation control for all field but when i close user control that validators dint clear in firefox or but clear in IE
View 3 RepliesI have a really massive page/controller which i have been able to code well enough. The user can edit information on this page and wont get it saved to the database unless they specifically say, save. However, there is a list at the bottom of this page that you can add/edit and delete elements. Adding and editing takes you to a different page, and before the page change happens, i want to save the form data to session memory, but i dont know how to access it outside a postback. Can MVC do this?
View 1 RepliesI have a web form with textbox and button. I want after "ENTER" key click on textbox postbak form.I am using next code:
onkeypress=" if(event.keyCode==13)
{ alert(2);
WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions('ctl00$ContentPlaceHolder1$btnSearch', '', true, '', '', false, false));
alert(2);
return false;}
where WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions('ctl00$ContentPlaceHolder1$btnSearch', '', true, '', '', false, false));
is javascript code for button event onclick.I get two alerts, but postback doesnot happen.
Is it possible to postback to the server, perform a function, and then continue that postback on to an external place? (ie, to a payment system)(the scenario is clicking a button to place an order, mark it as sent, then send them off to the payment page (there are form variables that needs to be sent to the payment screen as well))
View 5 RepliesI'm trying to solve a problem and am open to any suggestions. Here's the situation:
I have a checkout page that has an iFrame that contains a credit card form. The credit card form resides on an external site that is PCI compliant (and it is a requirement that we are PCI compliant so having the credit card form on our domain is not an option). When the user submits the checkout form, I need a way to force the submission of the iFrame form on the server side. This is because I need to wait for the credit card form's site to send back a reply via a web service on my end, which will be passing a token that I save and use later on when the order is submitted. I also will display any validation errors that are reported from the credit card form site, also via the web service.
This all worked just fine in a simulation, but I'm getting permission errors trying to access the form in the iFrame across domains (and after researching this, apparently it's not possible to access an iFrame's document across domains). I need a way to force the submit of the iFrame form on the server side without having access to the form itself. Can this be done? Can anyone suggest an alternative to what I'm trying to accomplish?
I have recently upgraded a .net 1 web application to .net 2.0. Everything works fine except some of the administrator pages. These pages load ok but on postback they give the following error:
Type 'WebModules.Accounts.Business.SiteIdentity' in assembly 'test20, Version=1.0.3777.35197, Culture=neutral, PublicKeyToken=null' is not marked as serializable.
Stack Trace:
[Code]....
[SerializationException: Type 'WebModules.Accounts.Business.SiteIdentity' in assembly 'test20, Version=1.0.3777.35197, Culture=neutral, PublicKeyToken=null' is not marked as serializable.] Microsoft.VisualStudio.WebHost.Connection.ReadRequestBytes(Int32 maxBytes) +0 Microsoft.VisualStudio.WebHost.Request.ReadEntityBody(Byte[] buffer, Int32 size) +86 System.Web.HttpRequest.GetEntireRawContent() +8766749 System.Web.HttpRequest.GetMultipartContent() +62 System.Web.HttpRequest.FillInFormCollection() +168 System.Web.HttpRequest.get_Form() +68 System.Web.HttpRequest.get_HasForm() +8722023 System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull) +97 System.Web.UI.Page.DeterminePostBackMode() +63 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +133
This happens only on my local machine. On the remote server it works fine. The problem also happens before the Page_load method is called (I have tried to debug).This is definitely not a problem of my code; it must be a .Net problem. I have narrowed down the problem of a particular page to the data binding of a datagrid. If I comment it out, the page works (the datagrid contents are not displayed of course). I have found on msdn that one of their security fixes causes this problem to occur in .Net 2.0, but the fix is for Vista. I am running XP so there must be something similar to XP.
I created a registration form where I have a radio buttun list and a drop down which have autopastback property true.
The issue is when the radio button or the value in drop down list are selected the page is posted back and the password and confrim password are disappearing after the postback. The post back is necessary.I want to keep the passwords maintained even after the post back.
I am interested in finding difference betwen AJAX postback(Partial Postback) & Standard Web Form Postback(Full Postback).
1) What is the size of data submitted back to Server in AJAX & standard Postback(All Input elements are sent to Server here)
2) what is the size of Data that comes back when using Ajax Postback.
3) what is the difference in event Life cycle in AJAX & NON AJAX Post back
I need strong backing/proof as i will share it with other manager at my company
(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()
{
[code]...
What is difference between Session.Clear() vs. Session.Contents.Clear()?
I want to clear all the Session variables.
I have a couple of fields on a form that will be populated with default values. I would like to put a button that will allow me to reset those fields to their default values if they have been modified. However I would like to avoid the postback so that I don't have data being sent to the database. Is it possible to add a javascript hook such that when that button is pressed I can pull the default values and populate those fields in javascript?
View 1 Replies