473,796 Members | 2,480 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 5343
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
2161
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
3774
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
1272
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
10049
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
2100
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
2600
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
6479
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
10456
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
10230
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...
1
10174
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
9052
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...
0
5442
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
5575
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
4118
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
2
3731
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
2926
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.