473,804 Members | 2,124 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

RequiredFieldVa lidator in action immediately in fresh form

Hi !

I'm using Visual Studio .NET to program a Web application coding in C#.

In my form I use an HtmlSelect control that calls a JavaScript function when
the selected item changes.
This JavaScript function calls the submit() method of the form.

For this HtmlSelect control I have also programmed the ServerChange event,
which is able to dynamically set up the form.

Depending on the item selected, this set-up adds an input field and an
associated RequiredFieldVa lidator.
I want the input field to be empty initially, but, unfortuantely,
the RequiredFieldVa lidator seems to act immediately when the fresh page
comes from the server.

I didn't have this problem as long as I was using a
System.Web.UI.W ebControls.Drop DownList instead of the HtmlSelect control,
but I would like to keep the Html control, in order to call my own
JavaScript when the selected item changes.

Is there a way to suppress the above mentioned initial validation when the
page is loaded afresh.

Your kind advice would be appreciated.

Peter


Nov 18 '05 #1
2 5345
When the page is set to IsPostBack=true , each validator shows its error
message when the IsValid property is false. Try this: after the page is
validated (you are probably calling Page.Validate() ), set the
RequiredFieldVa lidator.IsValid property to true.

--- Peter Blum
www.PeterBlum.com
Email: PL****@PeterBlu m.com
Creator of "Profession al Validation And More" at
http://www.peterblum.com/vam/home.aspx

"peshrad" <pe*****@Bieber Gruppe.de> wrote in message
news:uy******** ******@tk2msftn gp13.phx.gbl...
Hi !

I'm using Visual Studio .NET to program a Web application coding in C#.

In my form I use an HtmlSelect control that calls a JavaScript function when the selected item changes.
This JavaScript function calls the submit() method of the form.

For this HtmlSelect control I have also programmed the ServerChange event,
which is able to dynamically set up the form.

Depending on the item selected, this set-up adds an input field and an
associated RequiredFieldVa lidator.
I want the input field to be empty initially, but, unfortuantely,
the RequiredFieldVa lidator seems to act immediately when the fresh page
comes from the server.

I didn't have this problem as long as I was using a
System.Web.UI.W ebControls.Drop DownList instead of the HtmlSelect control,
but I would like to keep the Html control, in order to call my own
JavaScript when the selected item changes.

Is there a way to suppress the above mentioned initial validation when the
page is loaded afresh.

Your kind advice would be appreciated.

Peter

Nov 18 '05 #2
When the page is set to IsPostBack=true , each validator shows its error
message when the IsValid property is false. Try this: after the page is
validated (you are probably calling Page.Validate() ), set the
RequiredFieldVa lidator.IsValid property to true.

--- Peter Blum
www.PeterBlum.com
Email: PL****@PeterBlu m.com
Creator of "Profession al Validation And More" at
http://www.peterblum.com/vam/home.aspx

"peshrad" <pe*****@Bieber Gruppe.de> wrote in message
news:uy******** ******@tk2msftn gp13.phx.gbl...
Hi !

I'm using Visual Studio .NET to program a Web application coding in C#.

In my form I use an HtmlSelect control that calls a JavaScript function when the selected item changes.
This JavaScript function calls the submit() method of the form.

For this HtmlSelect control I have also programmed the ServerChange event,
which is able to dynamically set up the form.

Depending on the item selected, this set-up adds an input field and an
associated RequiredFieldVa lidator.
I want the input field to be empty initially, but, unfortuantely,
the RequiredFieldVa lidator seems to act immediately when the fresh page
comes from the server.

I didn't have this problem as long as I was using a
System.Web.UI.W ebControls.Drop DownList instead of the HtmlSelect control,
but I would like to keep the Html control, in order to call my own
JavaScript when the selected item changes.

Is there a way to suppress the above mentioned initial validation when the
page is loaded afresh.

Your kind advice would be appreciated.

Peter

Nov 18 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

6
2163
by: BK | last post by:
I'm having a really strange problem with and HtmlSelect server control (listbox) and a RequiredFieldValidator that I am trying to use to make sure that someone has items in the listbox. The way that the HtmlSelect is populated is via a combination of client-side javascript and another aspx page (launched by the javascript). Anyway, everything seems to work just fine in terms of populating the HtmlSelect. However, when I postback the...
5
3775
by: bissatch | last post by:
Hi, I have been trying to come up with an idea to reduce double submissions where a user clicks refresh and, for example, another row is INSERT into a table. Originally, I would have a form page. When a user submits the form (ie. index.php), I would script it so that when the form action would be the same page but it would use the address 'index.php?action=add'. This is bad (mmm-kay) as when the user refreshes the page it would add...
1
1273
by: ad | last post by:
I want to combine a TextBox and a RequiredFieldValidator into to a web custom control (name RequireTextBox ), But when I use RequireTextBox in web form, the RequiredFieldValidator has no action. How can I do? { private TextBox box; RequiredFieldValidator rv;
1
328
by: peshrad | last post by:
Hi ! I'm using Visual Studio .NET to program a Web application coding in C#. In my form I use an HtmlSelect control that calls a JavaScript function when the selected item changes. This JavaScript function calls the submit() method of the form. For this HtmlSelect control I have also programmed the ServerChange event, which is able to dynamically set up the form.
4
10050
by: James | last post by:
Hello, I have a RequiredFieldValidator for several textbox controls on a form. Here's an example with the RequiredFieldValidator. EnableClientScript, Enabled, and Visible are set to true for the RequiredFieldValidator. <asp:textbox id="FirstName" MaxLength="25" runat="server"></asp:textbox>
4
5108
by: Joe | last post by:
Hello, I have created a login page using dotnet. I am using requiredFieldValidator and noticed that the code works fine in IE but not in Netscape, Opera, Mozilla, Firefox, etc. For example if I do not enter anything in the form in IE, then form won't be submitted but in other browsers it is submitted. I checked that JavaScript is enabled in Netscape, Opera, Mozilla, Firefox,
2
2102
by: Hongbo | last post by:
Hi, I have a Asp.Net written in C#. It serve as information input form. The form encounters sort of random problem with the email field and state field. I have validator attached with these 2 fields as the following: ===== <form id="creditcardform" method="post" runat="server"> Email: <asp:textbox id="txtBillEmail" maxlength="50" width="200" runat="server" /> <asp:requiredfieldvalidator id="vp10" runat="server" initialvalue="" ...
1
2601
by: Arpan | last post by:
Suppose I have the following RequiredFieldValidator control which validates a TextBox: <form id="form1" runat="server"> <asp:TextBox id="txtVal" runat="server"/> <asp:RequiredFieldValidator id="reqVal" ControlToValidate="txtVal" ErrorMessage="Please enter a value in the TextBox!" Display="Dynamic" runat="server"/> <asp:Button id="but1" Text="SUBMIT" runat="server"/> </form>
2
6480
by: Christina | last post by:
Hello !! I am creating a dynamic textbox and want to validate it using the requiredfieldvalidator. These are the steps which I tried: ==================================================== 1) In Page_load, Dim Email As New Label
0
9595
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
10352
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
0
10097
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
0
9175
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
1
7642
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
5535
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
0
5673
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
2
3835
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
3002
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.