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
Related
I have a situation where I have a form that has some validation controls for required fields. They fire just fine if the user does not have the required fields.
The thing is I also have a menu above the form which allows the user to select another location which is then reflected on the form.
This is where I run into an issue...
If the user already selected a location and then wishes to change to a different location, the form does not allow for this as required fields have not been entered.
I was wondering if there is a way to tell the validation controls not to fire in these situation.
My other option would be to do a validation on click of the submit button in which case I would not be able to take advantage of the ASP.NET required validation control.
Basically I want the validation to occur for the required fields only if the submit button is clicked.
Look at CausesValidation and ValidationGroup properties. I think they will help you to solve your problem
On the menu item set CausesValidation to false.
You can also use validation groups and set the validationgroup property of the validator and the submit button to the same value.
I have two asp.net buttons in my page.If i make button cause validation false then am able to
fire button click event on server side but not able to validate text box values(but i need to validate text boxes) using required field validator.
Thank you very much...
If you want your form to be validated, you need CausesValidation to be true.
For the server side event handler to run, the form needs to be valid, according to the validators you have setup.
Can you post the page markup (including validators), so we can see the issue?
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 little problem with the validation in one form
the form is composed by two taqs. There is a "Save" button in each tap (is the same control for both) and saves the form info. there are validation controls in one tab but not in the second. When we try to save the info from the second tab, and the info has not been filled in the first tab, the validators fire, and nothing happends, but because this validators are shown in the other tab, the end user might be thinking that the operation has been completed, instead, I would like to show a msgBox telling the user about the errors in the other tab. How do I know that the validators in the other tab have been fired, and display the error message when the button is clicked?
You should use the ValidationGroup of your validator controls and the appropriate submit button. You can also use a ValidationSummary control which displays a summary of the validation messages - this can be set to display a message box if you want by setting the property ShowMessageBox=true.
taqs - tap
dear why are you so confused?
All the validators are posted to the page as JavaScript functions. You can call the validation function on button's click and take the appropriate action.
You can use on buttons
onClientClick="Page_ClientValidate();"
Can you disable an ASP validation on an event click before it posts back and performs the validation? This is for ASP with C#.
I would like to load some details into a bunch of text-boxes with field validators on them. However I need to disable the validation of these text-boxes in order to actually fill them, as the validation seems to occur at post-back, before code execution.
If you're wondering why I have field validators on when I'm loading in the data, it's because the fields hold user entered data too.
Buttons have a bool 'Cause Validation' setting.
Turn off validation and call it manually when you are ready.
What you want is to set the "EnableClientScript" set to false, then when your initial load is finished, switch that back on. It will load the client side validation scripts.
You could do the same thing with the "Enabled" switch as well.
So basically, if you want a button to load your forms and then turn on validation, you could just create a method that enables/disables all of your validation controls, and call that to enable them after you have successfully populated your forms.
Cheers!