The red frame remains on the TextBox even after entering data.

Question

I am writing an application using WPF, WPF Application Framework and MahApps.Metro. I have a check for the data entry window as follows:

<controls:MetroWindow x:Class="FinancePlus.Presentations.Views.CustomerView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="526" xmlns:controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro" xmlns:presentation="clr-namespace:System.Waf.Presentation;assembly=WpfApplicationFramework" presentation:ValidationHelper.IsEnabled="true" presentation:ValidationHelper.IsValid="{Binding IsValid, Mode=OneWayToSource}" Title="Customer Editor"> <Window.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colours.xaml" /> <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" /> <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" /> <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Green.xaml" /> <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseLight.xaml" /> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Window.Resources> <Grid DataContext="{Binding Customer}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"> <Grid.Resources> <Style TargetType="GroupBox"> <Setter Property="Margin" Value="10,5"></Setter> </Style> </Grid.Resources> <Grid.ColumnDefinitions> <ColumnDefinition Width="*" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <DockPanel Grid.Column="0"> <GroupBox Header="Personal Information" DockPanel.Dock="Top"> <Grid HorizontalAlignment="Stretch" VerticalAlignment="Top"> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> </Grid.RowDefinitions> <Label Content="Title:" Grid.Column="0" Grid.Row="0" Margin="3" VerticalAlignment="Center" /> <TextBox Grid.Column="1" Grid.Row="0" Height="23" Margin="3" Name="titleTextBox" Text="{Binding Path=Title, Mode=TwoWay, ValidatesOnExceptions=true, NotifyOnValidationError=true, ValidatesOnDataErrors=True}" VerticalAlignment="Center" MinWidth="120" /> <Label Content="Full Name:" Grid.Column="0" Grid.Row="1" Margin="3" VerticalAlignment="Center" /> <TextBox Grid.Column="1" Grid.Row="1" Height="23" Margin="3" Name="fullNameTextBox" Text="{Binding Path=FullName, Mode=TwoWay, ValidatesOnExceptions=true, NotifyOnValidationError=true, ValidatesOnDataErrors=True}" VerticalAlignment="Center" MinWidth="120" /> <Label Content="Name With Initials:" Grid.Column="0" Grid.Row="2" Margin="3" VerticalAlignment="Center" /> <TextBox Grid.Column="1" Grid.Row="2" Height="23" Margin="4" Name="nameWithInitialsTextBox" Text="{Binding Path=NameWithInitials, Mode=TwoWay, ValidatesOnExceptions=true, NotifyOnValidationError=true, ValidatesOnDataErrors=True}" VerticalAlignment="Center" MinWidth="120" /> <Label Content="Civil Status:" Grid.Column="0" Grid.Row="3" Margin="3" VerticalAlignment="Center" /> <ComboBox DisplayMemberPath="CivilStatus" Grid.Column="1" Grid.Row="3" Height="23" ItemsSource="{Binding}" Margin="3" Name="civilStatusComboBox" VerticalAlignment="Center" MinWidth="120" HorizontalAlignment="Stretch"> <ComboBox.ItemsPanel> <ItemsPanelTemplate> <VirtualizingStackPanel /> </ItemsPanelTemplate> </ComboBox.ItemsPanel> </ComboBox> <Label Content="Date Of Birth:" Grid.Column="0" Grid.Row="4" Margin="3" VerticalAlignment="Center" /> <DatePicker Grid.Column="1" Grid.Row="4" Height="25" Margin="3" Name="dateOfBirthDatePicker" HorizontalAlignment="Right" SelectedDate="{Binding Path=DateOfBirth, Mode=TwoWay, ValidatesOnExceptions=true, NotifyOnValidationError=true}" VerticalAlignment="Center" Width="115" /> <Label Content="Id Number:" Grid.Column="0" Grid.Row="5" Margin="3" VerticalAlignment="Center" /> <TextBox Grid.Column="1" Grid.Row="5" Height="23" Margin="3" Name="idNumberTextBox" Text="{Binding Path=IdNumber, Mode=TwoWay, ValidatesOnExceptions=true, NotifyOnValidationError=true, ValidatesOnDataErrors=True}" VerticalAlignment="Center" MinWidth="120" /> <Label Content="Profession:" Grid.Column="0" Grid.Row="6" Margin="3" VerticalAlignment="Center" /> <TextBox Grid.Column="1" Grid.Row="6" Height="23" Margin="3" Name="professionTextBox" Text="{Binding Path=Profession, Mode=TwoWay, ValidatesOnExceptions=true, NotifyOnValidationError=true, ValidatesOnDataErrors=True}" VerticalAlignment="Center" MinWidth="120" /> </Grid> </GroupBox> ..... More code. 

The result is as follows:

Which looks good. The problem is that even when I enter valid values ​​for the TextBox , the red frame remains. As you can see in the title and the name of the TextBox here. How to remove this red residue border? Where is he from?

Answer 1

I came across this before, when this happened to me, I had to perform data changes during initialize and ContentRendered . Because I had related items.

Another thing I saw a while ago in Stack Overflow was the problem that happened here, which also caused something similar.

 <Setter Property="Validation.ErrorTemplate"> <Setter.Value> <ControlTemplate> <ControlTemplate.Resources> <BooleanToVisibilityConverter x:Key="converter" /> </ControlTemplate.Resources> <DockPanel LastChildFill="True"> <Border BorderThickness="1" BorderBrush="Red" Visibility="{Binding ElementName=placeholder, Mode=OneWay, Path=AdornedElement.IsVisible, Converter={StaticResource converter}}"> <AdornedElementPlaceholder x:Name="placeholder" /> </Border> </DockPanel> </ControlTemplate> </Setter.Value> </Setter> 

It was my meeting, if this does not help, I will try to recreate the problem and fix it. See if I can help you any better than describing how I fixed it. But hopefully one of these two tips will help you.

Just let me know, hope this helps.