I have two buttons on my page and I want to trigger validator for only one of them not both.
first button is in masterpage.
second one in the page.
I do not want the first button trigger RequiredFieldValidator I set UseSubmitBehavior="False" button it does not work for me
Validation Groups allows to apply the validations for a group of controls. It works especially when there are multiple buttons on a page and if one button should trigger validations for set of controls and other button for another set. It can be achieved by setting validationgroup property to some string value on the validator controls along with button control.
Related
In my website I have a vb.net ascx control which contains a number of textboxes and a button. When the button is clicked I want to disable it, then perform some actions using the values of the textboxes, and then enable the button again. The problem i'm having is that i cannot disable the button.
The ascx control contains an asp:Panel, and inside that is an asp:UpdatePanel which contains the textboxes and the button. Could the asp:Panel or the asp:UpdatePanel be preventing the button being disabled? I can empty the textboxes without a problem, but nothing seems to work on the button.
I've tried
btnButton.Enabled = False
and
btnButton.Attributes.Add("disabled")
but they have no effect. Neither does setting the Visible property to false. The UpdateMode on the Asp:UpdatePanel is set to Always. I'm not too familiar with Asp:Panels or Asp:UpdatePanels so i'm guessing it's something to do with them. Does anyone know the correct way to do this?
After some more research I came across the solution. I just needed to add some attributes to my button like this:
<asp:Button ... OnClientClick="this.disabled=true;" UseSubmitBehavior="false" />
This will disable the button when it is clicked, but still allows the codebehind to run as well. When the codebehind has completed the button will be enabled again.
i am developing a site in asp.net as front-end
In my Form,
i have a 3 text-box with validation control on it eg: requiredFieldValidator
with joinnow button. and search button with 2 textbox with no validation control on it
when i click on search button it is asking me to fill the three text box for validation and it is not redirected to other page
i need that when i click on search button my form should redirect
You need to set the ValidationGroup properties on your textbox that has the validation and the joinnow button to the same thing. When you click the button it will validate controls in its group, and thus not validate from the search button (which is in a different validation group implicitly)
solution for it is
set the property of the search button as below
CausesValidation="False"
I have a listbox which acts as a list of items. If you click on some item, it's contents are shown in the panel on the right (few textboxes etc.).
I need to have a validation on these controls as all of them are required fields. And I do have it. The problem is that, even when the validators are not valid, user can click the listbox and change active index (that doesn't have impact on the panel on the right, as SelectedIndexChanged isn't fired).
The validators are standard RequiredFieldValidator with their Display property set to "Dynamic". So, what I want is to disallow the user clicking on the listbox and changing the index untill all validators are Valid.
What would be your solution for that? Is that even possible?
Did you try setting ListBox.Enabled = false when you actually do fire off the SelectedIndexChanged, and reenabling when your required fields meet the Page.IsValid requirement to proceed in code execution?
I have a page with two Listviews (with two different data sources). I have added RequiredFieldValidator controls to each of the InsertItemTemplate controls.
The first problem is that once all the validators were added they started requiring that both Listviews be populated before inserting. To fix this I tried to add different validation groups to the listviews but now the field validators don't work!
How do I get the Validators to work independently based on the Listview they are attached to?
Make sure both the ListViews and their respective RequiredFieldValidators have matching ValidationGroups.
Use the ValidationGroup attribute. Set the attribute to a different value for each relevant control in each ListView. For example, when a button is clicked with a ValidationGroup set, only the validators with a matching ValidationGroup are considered.
I have an ASP.NET entry form where several controls have validation set up. The form also includes a display of previous records, each with a LinkButton control that acts as a delete button. Problem is when a LinkButton is clicked, it performs validation on the entry portion of the form, fails, and the delete is not processed. I didn't write this form and I'm not up on the validation controls, and I'm just adding the delete buttons, so how would I work around this?
Set CausesValidation to false for the control in question?
Are you saying that there are buttons on the form that when clicked are causing validation to take place...and that these buttons should not peform the validation?
If so, then you probably need to group all the controls and buttons that are part of the validation. To do this you set the 'ValidationGroup' property for each control involved in the validation (this includes the buttons that fire off the validation).
This should stop buttons that are not part of the validation, firing the validation process.
Check this link out:
http://www.w3schools.com/ASPNET/prop_webcontrol_imagebutton_validationgroup.asp
and
http://www.dotnet-guide.com/validationgroups.html