Web Forms :: Why Doesn't Validation Control Stop Application
Oct 22, 2010
I use a validation control to check if value entered is numeric. When I type letter in the textbox, the error messages shows for a second, then the application continues, and eventually throw exception.
I'm going to add server side validation in code behind. But I wonder why the validation control doesn't stop the application. I don't see any difference between this web form and other web forms where validation controls work fine.
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Similar Messages:
Aug 5, 2010
i want to ask question i have simple regular expression pattern like "[ABC]" when i add it to me class
[Code]....
it is working good when i add A , B Or C as i need.but if i copy this pattern and paste it in my regular expression validator control it is not working
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Jun 4, 2010
I've written a custom ASP.net control that descends from LinkButton and overrides the Render() method. I'm using it to replace ImageButtons in the site I'm working on so we don't have to have an image for each button. This control works fine, does the required post-backs etc., however it doesn't fire the validators in its validation group. This is obviously an issue. The code for the control is (condensed) as follows:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public class CustomButton : LinkButton
{
public string SpanCssClass { get; set; }
protected override void Render(HtmlTextWriter writer)
{
if (!Visible)
{
return;
}
writer.AddAttribute(HtmlTextWriterAttribute.Name, UniqueID);
writer.AddAttribute(HtmlTextWriterAttribute.Id, ClientID);
writer.AddAttribute(HtmlTextWriterAttribute.Class, CssClass);
string postback = string.IsNullOrEmpty(OnClientClick) ? "javascript:__doPostBack('" + UniqueID + "','');" : OnClientClick;
writer.AddAttribute(HtmlTextWriterAttribute.Href, postback);
writer.RenderBeginTag(HtmlTextWriterTag.A);
writer.AddAttribute(HtmlTextWriterAttribute.Class, SpanCssClass);
writer.RenderBeginTag(HtmlTextWriterTag.Span);
writer.Write(Text);
writer.RenderEndTag();
writer.RenderEndTag();
}
}
Does anyone know why this would not be causing the validators to fire? I was under the impression that leaving all the other methods in LinkButton un-overridden would leave all the other functionality the same.
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Sep 29, 2010
i have validation controls in my form. i have save and exit button in the form and side menus in the page...
i set property" causevalidation=false" to all the side menu controls and exit button....
so when i press side menu or exit button no validation fires...but the problem comes here... if the user accidently pressed save button(which already caused validation), and now he want to exit from the form and user dun wanna enter any details in the form.in that case i cudnt leave from the form coz of validation
how can i achieve that?
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Nov 20, 2010
i have some textbox that i validate with a customvalidator control (only, and must be, server side function) and i have an imagebutton control for submit.I must stop the postback if there are some errors in the validation function.I set the validation property argumets.isvalid = false in the customvalidator function but doesn't work, the postback continue.i have tried to set the imagebutton property postbackurl = "" in the validation function but doesn't work.
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Jun 22, 2010
I have a JQuery select component and a javascript function to handle the stop event:
[code]....
The script works fine in firefox and chrome but not in IE7/8. It is normally supposed to send a string to the openid_identifier textbox once the google or yahoo select box is clicked.
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Mar 18, 2011
I'm going to check the database schema at Application_Start event handle in the Global.asax file. If something wrong, I hope to stop the application instead of just catch an exception.
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Apr 27, 2016
I done my c# code to stop watch
protected void tm1_Tick(object sender, EventArgs e)
{
long sec = sw.Elapsed.Seconds;
long min = sw.Elapsed.Minutes;
long hour = sw.Elapsed.Hours;
Label1.Text = hour.ToString("00") + ":" + min.ToString("00") + ":" + sec.ToString("00");
[code]...
When i stop the stop watch i want to display the stopped time in msg box how i get it?????
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Feb 17, 2010
I have an ObjectDataSource that is bound to a GridView. The object accepts a parameter from a TextBox. The problem I have is when I use a CustomerValidator with a ServerValidate event, the ObjectDataSource would still attempt to perform a DataBind despite the fact the the customer validator has returned false. The following is the code in the ASPX page.
<asp:TextBox ID="sittingDate" runat="server" />
<asp:CustomValidator ID="DateValidator" runat="server" ControlToValidate="sittingDate" OnServerValidate="DateValidator_ServerValidate" />
<asp:ObjectDataSource ID="BatchDataSource" runat="server" OldValuesParameterFormatString="original_{0}"
SelectMethod="GetOrCreateSittingBatch" TypeName="BatchBLL" OnSelected="BatchDataSource_Selected" OnSelecting="BatchDataSource_Selecting">
<SelectParameters>
<asp:ControlParameter ControlID="sittingDate" Name="batchDate" PropertyName="Text"
Type="DateTime" />
</SelectParameters>
</asp:ObjectDataSource>
<asp:GridView ID="BatchGridView" runat="server" DataSourceID="BatchDataSource">
In the Custom Validator I have
protected void DateValidator_ServerValidate(object source, ServerValidateEventArgs args)
{
/Ensure that the entered data is a date.
string input = args.Value;
DateTime result;
args.IsValid = DateTime.TryParse(input.TrimEnd(), out result);
}
How do I stop the ObjectDataSource from data binding when validation has failed?
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Feb 3, 2011
I am using Ajax Validator call out extender to validate a web form. The error messages are displayed as expected. But I am able to save the form with data that should not have been entered. For ex: for a number field, I type in "sdsd" and the ajax control displays a pop up displaying the error message "Numbers only allowed"..
but at the same time, I can click on the submit button with the text in the number field... at which time, the web page displays error as I am trying to insert a text in a data type int field. I either have to clear the field on pop up error display or not let the user click submit when ajax validator is active. whats the best way?
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Apr 19, 2010
I have following controls on my page
<asp:Button ID= "Submit" runat="server" CausesValidation="true".....>
<asp:textBox ID="txtPrice" runat="server" ...../>
<asp:Button ID="btnReset" runt="server" OnClientClick="ResetPriceBox(); return false"/>
[code]...
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Mar 19, 2010
I am creating dropdown controls in code behind. in some conditions I need to add validation control to dropdowlist. But Validation not firing when I submit button.
If mQuestion.RequiredToAnswer = True Then
Dim mValidator As New RequiredFieldValidator
mValidator.ControlToValidate = mDDL.ID
mValidator.InitialValue = mDDL.Items(0).Text
mValidator.Display = ValidatorDisplay.Dynamic
mValidator.ErrorMessage = "* Required!"
mTableCell.Controls.Add(mValidator)
End If
I have other dropdown controls on aspx page with validation comtrols. Those are working fine. Only when I ddl and validations from code not working?
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Jan 13, 2011
I want the validation condition to be: on a pair of textboxes, to be valid as long as at least one of them isn't empty.
So I put a customvalidator on the 2nd textbox, hooked up to the following server code and client code:
<script type="text/javascript">
function ECPhoneOrEmailRequired(source, args) {
var ecPhone = document.getElementById("txtEmergencyPhone");
var ecEmail = document.getElementById("txtEmergencyEmail");
if (ecPhone.value.length < 1 && ecEmail.value.length < 1) {
args.IsValid = false;
}
else {
args.IsValid = true
}
}
</script>
Protected Sub CustomValidator1_ServerValidate(ByVal source As Object, ByVal args As System.Web.UI.WebControls.ServerValidateEventArgs)
'args.IsValid
If (txtEmergencyPhone.Text = String.Empty And txtEmergencyEmail.Text = String.Empty) Then
args.IsValid = False
Else
args.IsValid = True
End If
End Sub
From what I can tell thru breakpoints, this code works fine as long as there's something in one of the two textboxes. When both textboxes are empty, the code is never called - and so both boxes empty ends up being allowed.
So what's the correct way to validate one-or-the-other-nonempty condition?
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Jan 6, 2010
i am using a search box for my application which returns a dataset. however when i click on the search button it returns an empty table result. how could i add validation so it doesnt accept empty strings or numbers.
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Nov 1, 2010
I am using the File upload control in asp.net
In that control filter option not available at least i need provide the validation for file upload control
like xml, xsls, txt
give me the syntax for the validation.
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Feb 14, 2010
to explain my problem as simple as i can i have made the following page each textbox is a required field. when i enter valid data in the text box and click the button everything is fine. the problem i am having is that after this button click > i empty out the last 2 textboxes > click the button > the required field validation is not thrown.
the autopostback property being set to true is a must in this case.
[Code]....
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Aug 5, 2010
I am launching a click once application on button click. I am using Response.Redirect(http://domain.com/application.application) to open my click once application. If I click on that button again then I am able to open one more instance of that application again. I want to put a restriction so user can open only one application.
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Aug 11, 2010
I am using Wizard control for password recovery. at first step I am checking the UserName with chkUserName(UserName.Text) function if UserName presents, the function will return the User Id and will navigate to next step, if UserName is wrong the function will return 0 and should not navigate to next step, but should stop at index 0 i.e. at the same step.
I have tried some solutions but it is navigating to next step in both the conditions.
in aspx the code is like:
[Code]....
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Jan 12, 2011
How can I make my application installed in my PC to start(ie., to popup for username and password) when I logged in to my PC, so that I can provide my username and password to the application and log in to it,similarly like gtalk that popsup for username and password once logged in to PC?
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Aug 5, 2010
I'm currently developping an application using MVC2 and Globalization (fr and de). I'm creating a form who use DataAnnotation on the model for validation, with localized error messages in my dataAnnotations.
Here is the trick :
I have two <input /> :
One for a required date (example : 12/05/2001) wich is a DateTime field in the model :
[Code]....
One for an optionnal hour (example : 22:30) wich is a DateTime? :
[Code]....
Erreur and LibellesSinistre are my ressources files.
I got two problems :
I can enter a date in my hour field and an hour in my date field.My error messages aren't localized.
Do I need a trick or something to make it work ?
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Dec 12, 2010
I have a few validations with a validation summery. The client side validations shows up, after the user leaves the textbox for the validation. The server side validation shows never up. The Validation summery shows never up.
[Code]....
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Oct 8, 2010
I've a grid view which could have huge data. When any control like a button causes the postback, I do not want gridview data to post back as it is not required and results in slower responses.
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Jun 15, 2010
I am using asp.net 3.5 and have validateRequest="true" in the machine.config.
Do I need to do something special to stop CSRF and Cross Site scripting or asp.net will handle all these?
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Jan 3, 2011
Whenever I stop debugging an ASP.NET IIS web application it seems to take very long before VS2010 becomes responsive again (2 or 3 minutes). This happens when I close Internet Explorer 9 (which stops the debugging session), stop debugging in VS (which closes the browser) or when I detach the debugger from the debugging menu (which leaves the browser open).
My CPU time for devenv.exe goes up to 25% during this period of time. I use the professional edition (no intellitrace). Starting without debugging performs ok when I close the browser. I have some add-ins and extensions installed like TestDriven.NET, Resharper, PowerCommands, Productivity Power Tools, VisualSVN,...
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Oct 5, 2010
Imagine a Web Forms application with routing.
A clean page name like:
[URL]
Might have an underlying of URL of:
[URL]
If a user enters [URL] into a browser, I need to redirect to [URL]
Is this possible to do?
I can't work out a way to do this as the routing engine is not executed for a physical page and in the page.aspx Page_Load method I have no way of knowing whether the URL was entered directly or was the result of a route.
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