Web Forms :: Incorrect Information Using Custom Validators?
Apr 21, 2010
I am using two custom validator to validate EMAIL (should not be reused) & a captca image (text).Everything is working fine except that the displayed are not dynamic even though I set the displaystatus as DYNAMIC.
Test:
1. Enter email already registered
2. Enter invalid captcha text
both displays error. fine for now. but again.
1. Enter email NOT registered
2. Enter invalid captcha text
the error message at the email is still displayed as 'the email is arlready registered'. How can I remove the message for the email?
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Jan 15, 2010
I'm attempting to create a custom control that extends the Table class. Inside of the table will be rendered a number of different controls based on a specified identifying property. On some of these controls, however, I need to specify validation for data types and requirement. To me, the most logical way of doing so is to add validators to the table and set their appropriate properties to specify which controls to validate. In doing so, however, I've discovered that none of the validators added will even render on the page in which the control is added. So is this a valid construct?
Here's an example of what I mean:
[Code]....
End result? No validation. So what's the move?
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Jun 17, 2010
I would like to find a way of running custom validation on a checkbox list. The reason why is because they were a radiobutton list. Then our client decided they wanted to be able to uncheck them (without a clear button) so in the end I had to change them to checkbox lists and make them mutually exclusive. On some of them, one must be selected and I downloaded this: [URL] to set them as required - worked nicely. Perhaps there's a way of building on this further to create some sort of custom checkbox validation. why I need this custom validation is because when the built form checkbox list = flat or maisonette then floor level is then required.
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Mar 3, 2010
All ASP.Net client validation messages can be shown as an alert by setting the ShowMessageBox="True" property on the ValidationSummary control. This works fine for anything that happens on the client.
For the custom validators that validate server-side I had assumed that what would happen is that when the page is returned to the browser, ASP.Net would inject some javascript to show the alert box. However this isnt the case.
If you had relied on the message box to show detail and just have a * next to the erroneous field (as per my clients req's) then it wont work as intended. Does anyone have a solution for doing this? What I want is a way to possibly override the ValidationSummary control to inject javascript onto the page or something like this.
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Aug 5, 2010
Wanting to create custom data annotation validation. Are there any useful guides / samples on how to create them?
Firstly: StringLength with minimum and maximum length. I'm aware .NET 4 can do this, but want to do the same in .NET 3.5, if possible being able to define minimum length only (at least x chars), maximum length only (up to x chars), or both (between x and y chars).
Secondly: Validation using modulus arithmetic - if the number is a valid length, I wish to validate using the Modulus 11 algorithm (I have already implemented it in JavaScript, so I guess it would just be a simple porting?)
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Mar 24, 2011
I'm working on a page that has a significant number of textboxes/dropdowns/etc to fill out. The majority of these are going to be performing some sort of custom validation. I should note that it's nothing of substantial size - all just string or integer values.
I always hear (and have typically always agreed) that as much validation should be performed on the client rather than on the server, but in this case I am unsure. The difference here is that this project will be passed on to an IT guy who knows about computers but is still new to programming - he will be the one in charge of making the minor updates and changes to the way these custom validations work in the future.
My idea shifted from being as efficient as possible to being a bit less efficient but much more readable. I created a new class specifically for all of my validations which will be used throughout the website. By forcing all of my custom validation code in this class, though, I eliminate any client-side validations I might be able to perform. I should also note that each page that requires a custom validation will generally need to perform at least one server-side validation, so I will never be able to use client-side 100%
Considering the relatively low level of activity on the website (currently and in the future), would you consider this as an acceptable solution? Or would you ALWAYS prefer to have as much validation on the client as possible in order to increase the responsiveness, even if it makes things a bit more messy for whoever may be working on it in the future?
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Jan 14, 2010
I'm attempting to create a custom control that extends the Table class. Inside of the table will be rendered a number of different controls based on a specified identifying property. On some of these controls, however, I need to specify validation for data types and requirement.To me, the most logical way of doing so is to add validators to the table and set their appropriate properties to specify which controls to validate. In doing so, however, I've discovered that none of the validators added will even render on the page in which the control is added. So is this a valid construct?Here's an example of what I mean:
[Code]....
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Jun 14, 2010
My custome ControllerFactory controllerName is passed an Action name and not the only Controller in my application. Where or how can I correct this so my Controller name, SearchMembers, is passed in and not the Action name of that method, Search.
[code]....
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Jul 21, 2010
I have a page where I am using 2 update panels. The first update panel contains a form that has some validation tied to it. The second on has a simple form, but no validation. When I go to use the form in the second panel, the postback is halted by the validators in the first panel. Everything works as it should when I remove the validators.
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Mar 8, 2011
We have a handler to deal with .dat files.. everything is already setup and server is acknowledging the file type and doing its thing to handle it..
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Basically when on our player.aspx page, i will have a button, when you click that button a request is made to the .dat file, but along with that request i need to send the physical file path.. how can i do that?
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Jun 4, 2010
I am using asp.net 3.5 and Oracle Providers for membership and roles. Now, using CreateUserWizard i can make user register here but for storing custom information like First name, last name, address etc. i am using couple of custom oracle tables instead of Oracle Profile Provider. In this case, i am using the USERID field which is of GUID type as primary key. Now, my problem is that i dont know how to draw information from my custom oracle tables for those users who are currently logged in. I have searched a lot in this forum and elsewhere where there are many topics relating to it but i failed to follow any of them. So, i would request you to kindly guide me to solve the issue. Oracle Membership
Table(ORA_ASPNET_USERS) USERID=xxxxxxxxxxxxxxx(some guid value) Username=abc and so on.. My Custom Table(UserProfile): USERID RAW(16), --> referenced to USERID field of ORA_ASPNET_USERS table fname varchar2(20) lname varchar2(20) I've the profiles of username "abc" having some userid stored in Userprofile table So, how can i fetch data from UserProfile table for the user "abc" when he is logged in?
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Sep 15, 2010
I am working with a sql server database with about 50 stored procedures. The database and stored procedureswere not created by me. The stored procedures all begin with a number in their name.
Example: 17P_Comsetter
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If I try an run the stored procedure as follows:
EXEC 17P_Comsetter
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Msg 102, ..... Incorrect Syntax near '17'
I am using SQL server 2005. Does anyone know why I am getting this error message?
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Nov 13, 2010
Usually in sub-folder we will limit the access right to some roles and this feature requires pre-defined database schema.
However, if i still want to use this role feature of asp.net, but I do not like the pre-define database schema, I want to extract role information from my own database table and bind it to the role.
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Jan 19, 2011
I am making an online form (literal form) that needs to have a certain function: when the user enters a 5-digit number, the form should automatically query the MS SQL DB and retrieve information associated to that number and populate other form elements (text boxes, etc.) accordingly.
So say the # was 12345 and in the DB, the record matching 12345 has name=Fred. So, when I enter 12345 into the form textbox, the name text box should be automatically populated with Fred in it.
If this is not easily achievable, I guess a submit button beside the 5-digit number text box can do.
I am still learning my way around ASP.NET and Visual Studio 2005, however I have ample experience with HTML, CSS, JavaScript, C/C++. The ASP.NET app is to be written in C#.
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Jan 11, 2011
I recently upgraded my web app to .net 4 and was surprised to see that the validator controls are no longer red. People are calling up all confused because they can't see the error messages now.Any idea how to fix this in one go? I know I can do a kludge like forecolor=red on every single validator control, but that's ugly. I don't want to go back to <pages controlRenderingCompatabilityVersion="3.5" /> because it's time to move forward, but I do want validator controls people can actually see.
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Sep 7, 2010
I can't seem to get any sort of validator to fire when validating my DropDownList. I just want to make sure that it isn't left at "--Select--" when the user presses the Add button on the page. I've tried a range validator and required field validator and neither seem to fire at all. My DropDownList contains ID which is an int that is hidden and Name which is a string that is displayed. The ID is -1 for "--Select--". I use these all the time and can't understand why the page in this new solution is any different from other solutions I have done in the past. What have I missed?
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Nov 15, 2010
I have added the validations dynamically on my page.But Page is not working fine for me as its always returns true? How to fix this for dynamic validations?
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Oct 28, 2010
I have a login web form with two textboxes for user name and pasword. The textboxes has a validator each and when I press the Login button everything is OK. I also have a second button which is used to redirect to a page for non logged in users. When I press that buon the form validators stops me from redirecting. How can I "use" validators for only one button and not the other?
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May 26, 2010
Please correct me if I am wrong, or agree with me if I am right.
1. Validator.Enabled == false;
2. Before Page.Validate(groupName) is called, BaseValidator.Validate() is called.
3. If a Validator is not being displayed, such as being in an non active View of a MultiView.I even wrote a Custom Validator that was in View.It checked if Validator.IsValid and it returned true when it wasn't.Is there any way to get around number 3?
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Dec 6, 2010
I have a webform that contains a few textboxes with required field validators and a gridview. I'm trying to add an edit function to the gridview, but when I go to update the textbox validators fire. Is there someway to trap the edit event and disable the rfvs? Will 'Mark As Answer' for replies leading to a solution.
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Feb 4, 2010
I have a complex page with many validators on it. When I first hit the page, if I do a postback, all the validators fire off. If I enter like half of the textbox values and then try to go to the next page, it will stop me from going to the next page, but the red text errormessage does not show up. What am I doing wrong?
[code]....
In this instance, when I first hit the page, and try to go next, it will say: "Please enter Group Name."
If I fill in a few textboxes and then try to go next, it will not allow me to go next, but the text: "Please enter Group Name." does not show.
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Jun 24, 2010
I have a contact page with fields like E-mail Address, Name, Subject, and Message. I use a RequiredFieldValidator on each text box. They work fine when I test it with the Visual Studio built-in development server, but on IIS7, they don't work and they allow the Send button's click event to be fired.
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Dec 14, 2010
im currently doing a web application.
user are allow to insert some events.
but if user didnt insert any fields, error message should pop out.
but for my calendar view, if user didnt select any, it still can pass through but data is not stored.
so how do i set required field validators to calendar?
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Mar 24, 2011
Are the validators (required validator, range validator, regular expression validators..... ) provided in asp.net belongs to Server side or Client side.and If server side how can we convert them to client side.or
If client side how can we convert them to server side.
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Oct 25, 2010
Are RequiredFieldValidators and RegularExpressionValidator also checked automatically server side?
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