How to create an undetermined amount of grid columns?

Charles He-MSFT 96 Reputation points Microsoft Employee
2020-02-25T02:32:13.2+00:00

Source thread: How to create an undertermined amount of grid columns?, answered by Peter Fleischer.

I have a text property bound to a TextBox. For each letter in the TextBox, I want to create a gird cell with a TextBlock inside it. So if I have a six letter word in the TextBox I get six grid columns with a TextBlock inside each column. How can I do this?

Windows Presentation Foundation
Windows Presentation Foundation
A part of the .NET Framework that provides a unified programming model for building line-of-business desktop applications on Windows.
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Accepted answer
  1. Alex Li-MSFT 1,096 Reputation points
    2020-02-25T02:42:53.713+00:00

    Hi,

    Welcome to our Microsoft Q&A platform!

    You can use ItemsTemplate in ControlTemplate of TextBox. Try following demo.

    Xaml:

    <Window x:Class="Window80"  
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"  
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"  
            xmlns:d="http://schemas.microsoft.com/expression/blend/2008"  
            xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"  
            xmlns:local="clr-namespace:WpfApp1"  
            mc:Ignorable="d"  
            Title="Window80" Height="450" Width="800">  
      <Window.DataContext>  
        <local:Window80VM/>  
      </Window.DataContext>  
      <StackPanel>  
        <TextBox Text="{Binding Word, UpdateSourceTrigger=PropertyChanged}" Margin="5"/>  
        <TextBox Margin="5">  
          <TextBox.Template>  
            <ControlTemplate>  
              <ItemsControl ItemsSource="{Binding LetterList}">  
                <ItemsControl.ItemTemplate>  
                  <DataTemplate>  
                    <Border BorderBrush="Red" BorderThickness="2" Width="20" Margin="5 0 5 0">  
                      <TextBlock Text="{Binding}" HorizontalAlignment="Center"/>  
                    </Border>  
                  </DataTemplate>  
                </ItemsControl.ItemTemplate>  
                <ItemsControl.ItemsPanel>  
                  <ItemsPanelTemplate>  
                    <VirtualizingStackPanel IsItemsHost="True"   
                                      Orientation="Horizontal"   
                                      VerticalAlignment="Top"/>  
                  </ItemsPanelTemplate>  
                </ItemsControl.ItemsPanel>  
              </ItemsControl>  
            </ControlTemplate>  
          </TextBox.Template>  
        </TextBox>  
      </StackPanel>  
    </Window>  
    

    and ViewModel:

    Imports System.ComponentModel  
    Imports System.Runtime.CompilerServices  
      
    Public Class Window80VM  
      Implements INotifyPropertyChanged  
      
      Private _word As String  
      Public Property Word As String  
        Get  
          Return Me._word  
        End Get  
        Set(value As String)  
          Me._word = value  
          LetterList = (From item In value).ToList  
          OnPropertyChanged(NameOf(LetterList))  
        End Set  
      End Property  
      
      Public Property LetterList As List(Of Char)  
      
      Public Class Letter  
        Public Property l As String  
      End Class  
      
      Public Event PropertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged  
      Private Sub OnPropertyChanged(<CallerMemberName> Optional propName As String = "")  
        RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propName))  
      End Sub  
      
    End Class  
    

    3421-1546480.png

    Thanks.

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  2. cacasdxdd 0 Reputation points
    2023-09-23T10:09:17.2766667+00:00

    افضل معالج روحاني♻️❇️00/966/540/290/979❇️♻️ جلـب الحـبيب السعودية / البحرين

    فلاح بي ان جي

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