Questions tagged [validationrule]
53 questions
1
vote
1 answer
How do I check if all textboxes inside ItemsControl are valid
I have this template for an itemscontrol:
…
Talha Talip Açıkgöz
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1 answer
Image validation rule not working as expected
Here's my validation rule:
public function rules() {
$channel_id = Auth::user()->channels->first()->id;
return [
'name' => 'required|max:30|unique:channel,name,' . $channel_id,
'slug' =>…
Pritam Bohra
- 3,912
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1 answer
Salesforce Validation Rule - Allow certain user & profile to modify record after it's been approved
I've looked for answers and even looked at a lot of our other validation rules but can't quite seem to finish this off. I feel like I'm almost there but I can't get my syntax correct.
I'm trying to write a Validation Rule that would allow a…
Ryan McKnight
- 11
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1 answer
how to pass a dynamic value for ValidationRule Class
I am new in wpf and i trying to make a validation textbox of some showdialog window. i already make a validation for empty dield and spaces but i need to add a validation for numbers that bigger than some max value that i passed to the dialog but…
yosi
- 23
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3 answers
Binding to a ValidationRule in WPF
I am new to WPF. The form's data context includes a StartTime and an EndTime field (using MVVM), which I have successfully bound to their own text boxes. I am trying to create a validation to check that a new user-entered StartTime is before the…
zambonee
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0 answers
Pass TextBox.Tag into its own ValidationRule
I would like to use the TextBox's 'Tag' property to store invalid characters (or eventually a Regex string) for validation of the text. In my simple example, I'm checking the TextBox text for any instances of 'A'.
I have my custom ValidationRule…
CraigInCali
- 21
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1 answer
Does System.Windows.Controls.ValidationRule only support Value Types for properties
I am using following System.Windows.ValidationRule.
public class XXXValidationRule : ValidationRule
{
public object FooObject { get; set;}
public override ValidationResult Validate(object value, System.Globalization.CultureInfo cultureInfo)
…
kbisang
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2 answers
ValidationRule Red Border Issue
In my WPF Application, I have created ValidationRules for my TextBoxes so that it will not allow an empty string which works fine and shows a red border with text telling the user it can not be empty. When the application launches, all the fields…
barakisbrown
- 1,293
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0 answers
WPF DataGrid on validation error, how to disable buttons on view
I have set up my own ValidationRule so when some validation fails inside a Datagrid, an error appears and you need to correct that error to continue to edit the rest of the grid.
Perfect.
However, you can still "Save" with this error still present.…
user3428422
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Access validation rules Date/Time
I need to set up a small database as an assignment after 3 hours of an access introduction and I'm failing completely. However I youtubed several hours but still no change in the outcome. Do I try to implment too many excel functions into access?
My…
Nina
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Is ValidationRule able to prevent Control status from being updated?
Maybe I am not using ValidationRule correctly, if so, please show me the correct way.
Currently, I have implemented a class WarningForUncheckRule inherited from ValidationRule, and bind it to a binding.
…
winterTTr
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1 answer
PasswordControl and manually showing ValidationRule error
I have custom ValidationRule that returns can error when the entered text is too short. This works fine for a standard TextBox because the Text property can be bound to a source and then the rule added to the binding. When the user enters a string…
Phil Wright
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Parent Child ValidationRule
I have a complicated scenario using ValidationRules that I need some help with. I have a User Control that is roughly organized like this:
Parent (ItemsControl)
Child 1
Property 1
Property 2
Child 2
Property 1
…
tonic889
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1 answer
TextBox is empty but ViewModel still contains the last character when using ValidationRule
I have a TextBox, and I am using ValidationRule.
…
Polar
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Magento 2: How to Implement Validation in UI-Component with parameters
Ok. Everyone's got an answer on how to add validation rules to a ui-component field via XML. Unfortunately, I can't find anyone that seems to know how to implement a rule that requires a parameter or two. I'm sure the knowledge is out there, but…
Toby Crain
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