C# - Aggregating Validators In An User Control?

Mar 16, 2010

I am developing a web application where I would like to perform a set of validations on a certain field (an account name in the specific case). I need to check that the value is not empty, matches a certain pattern and is not already used. I tried to create a UserControl that aggregates a RequiredFieldValidator, a RegexValidator and a CustomValidator, then I created a ControlToValidate property like this:

public partial class AccountNameValidator : System.Web.UI.UserControl {
public string ControlToValidate {
get { return ViewState["ControlToValidate"] as string; }
set {
ViewState["ControlToValidate"] = value;
AccountNameRequiredFieldValidator.ControlToValidate = value;
AccountNameRegexValidator.ControlToValidate = value;
AccountNameUniqueValidator.ControlToValidate = value;
}
}
}

However, if I insert the control on a page and set ControlToValidate to some control ID, when the page loads I get an error that says Unable to find control id 'AccountName' referenced by the ControlToValidate' property of 'AccountNameRequiredFieldValidator', which makes me think that the controls inside my UserControl cannot resolve correctly the controls in the parent page.

So, I have two questions:

1) Is it possible to have validator controls inside a UserControl validate a control in the parent page?

2) Is it correct and good practice to "aggregate" multiple validator controls in a UserControl? If not, what is the standard way to proceed?

View 2 Replies


Similar Messages:

Web Forms :: Validators On User Control Trigger Unexpectedly

Jan 22, 2010

I am having an issue with a user control that contains a dropdown and a validator. I created a property for the "CausesValidation" property on the dropdown and set it to false. And yet the dropdown is still triggering the validator. I am having issues with this elsewhere as well including on my ModalPopup.

View 3 Replies

Web Forms :: Validators Of The User Control Fires On Any Button Press Of The Parent Page?

Nov 16, 2010

I have a user control with contact form and validators, when I add it (user control) to my parent page I get a strange behavior of all buttons within the parent page, Any button I press on the parent page fires the validators of the user control. How can I vallidate the form on my user control only when I press a specific button?

View 3 Replies

AJAX :: Multiple Panels And Validators - Postback Is Halted By The Validators In The First Panel

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.

View 2 Replies

Using Validators To Ensure That User Filled Either One Of Two Required Fields?

Jan 31, 2010

I have an ASP.NET form for currency exchange requests. There are two text fields there: amount-source and amount-target.

One of them must be filled and only one.

How to implement this using Validators, if applicable?

View 2 Replies

User Controls :: Validate Money Currency Format In TextBox Using Validators?

Jan 8, 2014

im trying to dcreate a requiredfieldvalidator that only accept amount of money. 

first i used this expresvalidator as it cant receive any letter.

<asp:RegularExpressionValidator ID="rvcheckno" runat="server"
ErrorMessage="Amount receive numbers only!" ControlToValidate="tbamount"
InitialValue="0" ValidationGroup="number">
</asp:RegularExpressionValidator>
but then it also cant receive cent.

i was trying to do something that can accept 130.00

View 1 Replies

Postbacks And Validators - Get The Parent Control (which Are All Consistently Panels) Using JavaScript?

Feb 18, 2010

I'm using the built-in ASP validators on a few form elements. They work fine - if I click the submit button (a Button), validation occurs without postback and errors are displayed in a ValidationSummary. When that occurs, I also want to call a method in codebehind which changes the CSS of elements, switching their background color to red to reflect errors. I've tried to call this method using both OnClick and OnClientClick in the submit Button, but neither parameter seems to fire the method - client-side validation always takes priority, and a postback never occurs. Can anyone enlighten me?

EDIT #1 Using orandovs link worked alright for changing the element itself, but how about its parent? For example, in C# I'm doing:

foreach (BaseValidator validator in Page.Validators)
{
Panel panel = validator.Parent as Panel;
if (!validator.IsValid)
panel.CssClass = "error";
else
panel.CssClass = "normal";
}

Is there a way to get the parent control (which are all consistently Panels, so I know CssClass will exist) using JavaScript? Something like: $("#" + Page_Validators[i].controltovalidate.parent).CssClass("error");

View 4 Replies

Server Controls In User Control Are Null When User Control Serves As A Base User Control ?

Jun 4, 2010

I don't think I understand fully how ASP.NET does inheritance of controls.I have a user control, ucBase, which has an asp.net label in the ascx file. Code behind references the label and it works fine during run time if the control is not a parent for another user parent.

If I have another user control, ucChild, inheriting from ucBase, the label in ucBase's code is always null. ucChild has no controls in its ascx fileThe server controls (like the label) needs to be declared in the ascx file and not created programmatically.What needs to be done for ucBase to see its own controls when it's a parent user control?

View 1 Replies

Web Forms :: Created Some Required Field Validators And A Validation Summary Control?

Feb 24, 2011

I created some required field validators and a validation summary control. When I get an error it displays next to the control its validating and also inside the validation summary control. I only want the error to display in one place; inside the validation summary control. I tried making the required field validator invisible but then it didn't display anywhere.How can I get the errors to only display in the validation summary control? There is no need to display them twice it just clutters up the page.

View 3 Replies

Web Forms :: Multiple Validators Assign To 1 Control, But Display Not More Than 1 Error Message?

Jun 2, 2010

here is the problem I have:There are 2 textboxes: uxActiveDate, uxExpireDate. Expiredate has 2 validators attached to it:

In the markup:

[Code]....

In the code behind file:
[Code]....

The problem is when expire date is selected before active date, and current date, then both the error messages are displayed. I have to set priority or something so that these 2 messages are not displayed at the same time. Is it doable?

PS: Since if required field validator does not pass, then other validators dont execute, I guess there is a way to set priority so that if one validation is not passed others will not execute. Validation summery is not an option, since it does not show message client side.

View 5 Replies

AJAX :: Change Background Color Of Error Control With Multiple Validators?

Jan 5, 2014

i used this link for validation [URL] .....

and its working fine for one one validation. In my design, textbox has multiple validations as required field validator and regular expression validator and this script if not working when i click submit button.

look the below design.aspx

<asp:TextBox runat="server" ID="txtAddFName" MaxLength="20"></asp:TextBox> <asp:TextBoxWatermarkExtender ID="TextBox_FN_TextBoxWatermarkExtender" WatermarkText="First Name" runat="server" Enabled="True" TargetControlID="txtAddFName" WatermarkCssClass="WaterMarkedTextBox"> </asp:TextBoxWatermarkExtender><asp:RequiredFieldValidator runat="server" ID="rfvFName" ControlToValidate="txtAddFName"ErrorMessage="*"

[Code]..... 

View 1 Replies

Web Forms :: How To Use Required Field Validators In The Insert Item Template In A Listview Control

Feb 22, 2011

How can I use required field validators in the insert item template in a listview control? The empty fields in the insert item template are preventing the user from deleting or updating ay other row.

View 6 Replies

Data Controls :: Conditionally Enable Disable Validators Inside DataList Control

Nov 25, 2013

AM having a datalist with fields repeating based on some conditions say some textbox to enter Name ,DOB,Occupation,cell no,etc..and we have a button "Accompanying Person" .When this clicked i have to show same controls and enter details of accompanying persons like name,cell no etc...

SO same controls i have to show multiple times...but based on member /accompanying person i am hiding id field..but required field validator showing when the id is hidden..since this id is inside datalist and id textbox will be different how to hide this required field validator

View 1 Replies

Web Forms :: Accessing A Public Property Of A Nested User Control In A Master Page From A Pages' User Control?

Sep 10, 2010

I've got a web site that has a master page and that master page (mpMaster that has a user control ucControl1) which has a sub user control (ucControl2), this user control has a property which accepts a value. Now, I have a page that uses the master page
and on this page I have another user control (ucPageControl), I need to find a way of setting the value in ucControl2 from ucPageControl. Is this possible at all?

View 5 Replies

How To Get Same Validators Control To Both Client Side And Server Side

May 20, 2010

For the ASP.NET validator controls, I want to use both client-side validation for the user experience and server-side validation to guard against hackers. ASP.NET documentation leads me to believe that if EnableClientScript="True" then there will be no server-side validation if client-side validation is possible for the user agent. To get server-side validation, the documentation says use EnableClientScript="False", which bypasses client-side validation altogether.

Am I misunderstanding how the validator controls work? I ask because it seems obvious that many developers would want both client and server side validation together, and I find it hard to believe both together is not possible with one of the standard validation controls.

If I am understanding the ASP.NET documentation correctly, then I can find only two options:

Use two validator controls exactly the same except for their ID and EnableClientScript properties. Obviously ugly for maintaining two controls almost the same.Write some code behind to check if postback then invoke the Validate method on the validator group. Why write code behind if there a way to be automatic from the control?

Is there a way to do so using a single validator control with no code behind?

View 4 Replies

Web Forms :: Assign User Control From Another User Control ? Giving Error Object Reference Is Not Set An Instance?

Feb 17, 2011

I am trying to assign user control from another user control ..first time its binding control successfully but when we refresh the data its giving error

saying "Object reference is not set an instance".

how to refresh data from another user control ...

My senerio below :

1 Aspx page

2. User control

calling usercontrol databinding method from aspx page but once it get refreshed ,not allowed to bind it again..

View 2 Replies

User/server Control With Custom List Items / Create A Simple Menu User Control

Feb 18, 2011

I'm attempting to create a simple menu user control just as outlined here.

The attached code results in an "Object reference not set to an instance of an object" error, but I can't figure out why.

<%@ Master Language="VB" CodeFile="MySite.master.vb" Inherits="MySite" %>
<%@ Register src="Controls/Menu.ascx" tagname="Menu" tagprefix="my" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">......

View 1 Replies

How To Access A User Control's Parent Form's Controls Inside The User Control's Code Behind

Jun 11, 2010

I have to access the parent form's controls inside an event handler method on my user control's code behind.

View 4 Replies

Custom Server Controls :: Unable To Use A Web User Control Inside Another Web User Control

Mar 10, 2011

I have a web user control that represents a simple message box. It is used to display simple messages like "Item has been deleted", or "The item was saved successfully".

On the other hand, I have another web user control that represents the item in the form of an editable form (I made this a user control because this is used in two different pages). I want to embed an instance of the message box user control inside the editable form. I am writing this right after the @Control directive:

[Code]....

Instead of using @Register directives, I register the user controls in web.config and so far this has worked just fine.

With the above markup, the project compiles, but whenever I try to navigate to a page that contains this construct, I get an HttpParseException exception. Furthermore, Visual Studio states that the tack w7rc9:MessageBox doesn't represent a known control.

What am I doing wrong?

View 2 Replies

Have The Windows User Control, Need To Convert This User Control In Web User Control?

Jul 16, 2010

I want to convert windows user control into web user control..I have the usrDataView.cs..I need to convert this file into usrdataview.ascx.can anyonr help me?...how I can convert the file...Is any method is available..

View 1 Replies

Passing Parameter From One User Control To Another User Control In An Aspx Page?

Jun 3, 2010

have two user controls on one aspx page. UC1 has a grid which contains a link button column which user clicks. Based on the value of clicked cell, I need to show some data into UC2.How do I pass data from UC1 to UC2? How do I invoke a function of UC2 from UC1?

View 2 Replies

Web Forms :: Nest / Include A User Control Inside A User Control?

Apr 16, 2010

All I would like to be able to do is include one user control within another! Is this possible? I have spent the last hour searching the internet and it seems that I can't find a single thing.

In classic ASP it would be something like:
<!--#include file="EditProject.ascx"-->

I tried this but no luck!

Parser Error Message:

There can be only one 'control' directive.

Source Error:

[Code]....

Line 1: <%@ Control Language="VB" AutoEventWireup="false" CodeFile="EditProject.ascx.vb"Line 2: Inherits="Controls_WebUserControl" %>Line 3: <form runat="server">

View 3 Replies

How To Consume Razor User Control OR MVC User Control In Layout Page

Mar 5, 2011

It's simple to create both user control from the two world : ASP.NET+Razor or MVC 3.0.But i do not known how to consume the user control FROM the razor"_layout.chtml" page.I want to put such thing within the layout page: <uc:MyTag Prop1="" Prop2="" />So i need to declare this directive at top of the layout file : <%@ Register TagPrefix="uc" TagName="MyTag" Src="Controls/Mytag.ascx" %>

View 1 Replies

Parent User Control Validation From Child User Control?

Feb 26, 2010

I have a user control which contains two text fields each assigned with requiredfield validators this control contains another user control contains say a button .On click of this button i need to validate the fields from the parent control text fields.I try the Page.Validate("ValidationGroup") with Page.IsValid it validates but the error message is not shown .Error message is shown only if i try to validate it from the contains which contains the required field validators ?

View 1 Replies

C# - Javascript Function's Has Accessbility In An User Control From Other User Control?

Jul 13, 2010

Now the weird thing is I have a user control UserControl1 in which I put some JavaScrdipt logic there, and I have another user control UserControl2 and I registered both in the page called Page1.aspx.I would like to call the JavaScript function resided in UserControl1 from UserControl2, however, I got an error saying the function is not defined. I think both user controls are loaded before I use them then I think the JavaScript function can been seen anyway in that page.

View 1 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved