I need help with some things regarding windows form validation:
closing form using standard form closing button (X) triggers validation of all controls.
Is there a way to supress it when closing form using this button, and force it only when pressing my own button?
validation of textbox (possibly other controls, I tested only textboxes) wont invoke when i change text (value) programatically. I need to type text directly into textbox if I want validation to be triggered later, before form is closed. How to tell the form that some control needs validation (but not to trigger it immedidately)?
Thanks.
EDIT:
(1) solved, using this answer.
(2) now, after i set AutoValidate property to false and added ValidateChildren() to my button, only 1 control is being validated with its current value, values of all other controls are revert to value binded to them from DataSource object . I checked it in Validating event - only first control validating keeps its current value, after this validation is finished, other controls' values are replaced with values from DataSource object. I don't understand why. Any clues?
Try this, maybe it could help you. ( for 1)
In the Forms Load event you can put
this.ControlBox = false;. This will hide your X button with the other buttons at the top.
The Form has a Form1_FormClosing event. In that Event you could call the triggers you need. Put a button on the form, and in button_Click event you type this.Close().
Related
What I am trying to accomplish:
Use button to open a form, filter the form, and set specific value to an unbound textbox in the opened form's header. There are multiple buttons being used open the same form and I would like this textbox to changed every time a specific button is clicked.
What I have done so far:
Used a macro to open the form and the "where" condition to filter the records. I also used "SetProperty" to change the value of the unbound textbox in the opened form's header depending on which button was clicked. When I do used the SetProperty option in the macro I get the error "The control name ... is misspelled or refers to a control that doesn't exist. Error 32004
I have verified numerous times that this is the correct name for the textbox and everything. I am pretty new to access and don't do VBA all that much so any assistance would be greatly appreciated. Thanks.
First Form and Macro for the "Physical Security" Button
Second form with error and unbound txt box I want to change to "Physical Security"
A few Ideas to track down your problem:
Maybe there's a problem with opening and (immediately) accessing the forms controls(?) You could try to fire a macro from within the same from that (only) changes the value of this text-box to make sure it definitely works there. Of course you'd want to make it work there if it failed before you'd go back to your original problem.
Is the property called value? Could it be text?
Are you sure you need to separate (all) hierarchies using !? Just by desperation: Maybe try using Forms!frmVW.txtXY or Forms.frmVW.txtXY
If that doesn't solve it:
It's often best to reduce your problem to it's very basics. Copy your application (!!!!) and radically delete unneeded stuff. Or start a short experiment from scratch (one or two forms, maybe only a button and a textbox, a macro, most probably not even a single Datatable/Source).
I'm trying to validate an input field which is 'disabled' when the page loads, but it will, somehow, become visible and editable.
I excluded [disabled] from parsley, but when I'm trying to refresh constraints on that field, nothing is working. I tried to call addValidation() when the field appears but no success.
Is there any method to do this? I can't destroy the form (that's not working either).
Found out how to do this.
Just call _refreshFields() on your form.
$('form').parsley()._refreshFields()
I have a Zend_Form object that generates a form in my view.
It does POST processing and submits data to my database.
Sometimes, I notice that my submit button, which simply says "Update Your Changes" is stripped of its value, so its just a button with no text value. I'm surprised Zend_Form is not coded to ignore clearing values from submit buttons.
Is there a way to stop this from happening?
You can try setting the value forcefully in the decorator:
<?php echo $this->element->update_btn->setLabel('Update Your Changes');?>
In addition to s-rupali's answer, you might also try isValidPartial(). This method, regardless of how you implement it (I'm a c# kinda guy) will not validate disabled elements You can then temporarily set your button to disabled, whilst the submission occurs. Afterwards, you can create another method to re-enable it.
http://framework.zend.com/manual/en/zend.form.quickstart.html#zend.form.quickstart.validate
I am currently programming in MS Access VBA. I have a form with a textbox on it. I am executing some code on LostFocus event of the textbox.
However, when I close the form using mouse and by clicking on close button on right-top corner of the form, with cursor in the text box, I have noticed that LostFocus event is getting executed before Form_Unload event.
Is there a way to avoid this?
Also, where can I find priorities of the events?? Or How are priorities decided in VBA?
EDIT:
My exact application is like this.
I have a form in MS Access which is used for accepting users' login credentials.
I want to disble textbox for Password and Login button till a valid Username is entered. I check if the username is valid or not on onLostFocus event. Now, consider a case where this form is closed without entering anything in Username textbox. In that case, onLostFocus event gets executed before Form_Unload event.
However, for normal operation, I require onLostFocus event because, on that event I enable Password textbox and login button.
Could there be a different way of doing it??
The lost focus event is not usually the best event for code. Did you have a specific reason for using it? If so, you will need to add a condition to the execution.
The order of events for an Access form are:
Exit → LostFocus
If you are closing a form, the Exit and LostFocus events occur before
the events associated with closing the form (such as Unload,
Deactivate, and Close), as follows:
Exit (control) → LostFocus (control) → Unload (form) → Deactivate
(form) → Close (form)
-- http://office.microsoft.com/en-ie/access-help/order-of-events-for-database-objects-HP005186761.aspx
"I check if the username is valid or not on onLostFocus event."
Do your validation in the after update event of the username text box ... enable/disable the password text box as appropriate when the username value changes.
You can initially disable the the password text box at form load, assuming the form loads with the username text box empty.
using onDirty or onChange is probably better for what you're doing if it is a control that you're inserting data into. There's a bunch of better choices than onLostFocus. Without knowing anything specific makes it tough to know how to help you more specifically. I'd say just try another on Event, because due to the nature of onLostFocus, it'd be impossible to prepare for this contingency.
Is it possible to programatically disable form validation in MVC2?
I'm hoping there is some kind of command that I can put in a custom ActionMethodSelectorAttribute, making it possible to prefix ActionResults where I want form validation disabled.
The reason for this is that I have a form with multiple buttons, one button adds a new row to a child object of the model - which consequently creates a new row on the form.
This works fine, but validation is fired for the form each time "add" is pressed, and so the new fields flag up validation errors before the user has a chance to enter data.
I've found an alternative solution to this.
Rather than use multiple form buttons, I've used a custom html helper which produces a "Add" link.
This helper places the current Model in TempData and produces a Link to Add/{id}.
I'm not sure this is the cleanest solution, but it allows child elements to be added without validation firing. To tidy things up a bit, I specified the form as such:
Html.BeginForm(view, controller, new { id = Model.ID })