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Validation range rule doesn't occur dynamically in textbox field from automated calculation


Validation range rule doesn't occur dynamically in textbox field from automated calculation

By : user2950238
Date : November 17 2020, 11:52 AM
Hope that helps From WPFTutorial.net.
code :


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custom validation rule for integer range in jquery validation engine

custom validation rule for integer range in jquery validation engine


By : Julie Oppermann
Date : March 29 2020, 07:55 AM
help you fix your problem Doing maths with regex is always a pain, you should parse it and check the not greater than 12 condition with code. However, it is possible for this simple example by using
code :
[0-9]|1[12]
number(-number)?
input(\s*,\s*input)?
var integerRangeComma = {                    
     "regex": /^([0-9]|1[12])(-[0-9]|-1[12])?(\s*,\s*([0-9]|1[12])(-[0-9]|-1[12])?)?$/,
     "alertText": "a single page number until 12 or an interval in them, or two of those separated by a comma"
};
Dynamically created textbox's value doesnt get updated

Dynamically created textbox's value doesnt get updated


By : Kevin A
Date : March 29 2020, 07:55 AM
it should still fix some issue Use .val() instead of .attr('value')
Conditional validation rule for a textbox in WPF?

Conditional validation rule for a textbox in WPF?


By : Quincy Lassiter
Date : March 29 2020, 07:55 AM
Hope that helps You should move your validation logic away from UI (ValidationRule) and consider implementing IDataErrorInfo in your ViewModel.
A good start is this article.
code :
<StackPanel>
    <CheckBox x:Name="requirePinNumberCheckBox" IsChecked="{Binding Path=RequirePinNumber, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}">Require PIN number</CheckBox>
    <TextBox x:Name="pinNumberTextBox" 
             PreviewTextInput="pinNumberTextBox_PreviewTextInput"
             Text="{Binding PinNumber, ValidatesOnDataErrors=True}"
             ToolTip="{Binding (Validation.Errors).CurrentItem.ErrorContent, RelativeSource={RelativeSource Self}}" />
</StackPanel>
   public class ViewModel : IDataErrorInfo, INotifyPropertyChanged
    {
            private bool _requirePinNumber;
            public bool RequirePinNumber
            {
                get
                {
                    return this._requirePinNumber;
                }
                set
                {
                    this._requirePinNumber = value;
                    if (this.PropertyChanged != null)
                    {
                        this.PropertyChanged(this, new PropertyChangedEventArgs("RequirePinNumber"));
                        this.PropertyChanged(this, new PropertyChangedEventArgs("PinNumber"));
                    }
                }
            }

            private string _pinNumber;
            public string PinNumber 
            { 
                get
                {
                    return this._pinNumber;
                }
                set
                {
                    this._pinNumber = value;
                    if (this.PropertyChanged != null)
                    {
                        this.PropertyChanged(this, new PropertyChangedEventArgs("PinNumber"));
                    }
                }
            }

            public string Error
            {
                get 
                { 
                    throw new NotImplementedException(); 
                }
            }

            public string this[string columnName]
            {
                get 
                {
                    if (columnName == "PinNumber") 
                    {
                        if (this.RequirePinNumber && string.IsNullOrEmpty(this.PinNumber))
                        {
                            return "PIN number cannot be blank.";
                        }
                    }
                    return string.Empty;
                }
            }

            public event PropertyChangedEventHandler PropertyChanged;
        }
Code-behind only validation rule of a textbox

Code-behind only validation rule of a textbox


By : 10batteries
Date : March 29 2020, 07:55 AM
may help you . I have in XAML a Window Resource Style targeted at TextBoxes, which style triggers and validations. These work great with my XAML TextBoxes. So far, so good. , I ended up doing this. Worked great,
code :
    Binding bindingNumberList = new Binding(businessModelObjectName);
    bindingNumberList.Source = currentTestData;
    bindingNumberList.Mode = BindingMode.TwoWay;
    bindingNumberList.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
    bindingNumberList.ValidatesOnDataErrors = true;
    GenericValidationRule gvrCheckValidImageNubers = new GenericValidationRule();
    gvrCheckValidImageNubers.ValidationStep = ValidationStep.RawProposedValue;
    gvrCheckValidImageNubers.WhatToCheck = "Contains Existing Image Numbers";
    bindingNumberList.ValidationRules.Add(gvrCheckValidImageNubers);
    tbNumberList.SetBinding(TextBox.TextProperty, bindingNumberList);
unable to update in gridview when require validation occur in textbox

unable to update in gridview when require validation occur in textbox


By : growthhackerpro
Date : March 29 2020, 07:55 AM
should help you out Please try to add try catch for button1_click to catch Exceptions. Validation group has an effect only when the value of the CausesValidation property is set to true.and validation group need to specify a value Please Refer this Link
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