Naming a variable/object with a string in WPF

Question

Hello

I'm fairly new to programming and was just wondering if it was possible to use a string to dynamically name a new variable or object in WPF. I have seen on windows forms you could use me.controls to name things but this is not included on WPF and I haven't been able to find a definitive answer.

an example of this would be:

for i = 0 to 10
dim ("variable name " + i ) as new rectangle
next

The only reason I ask is I want to make a grid of rectangles that can be dynamically created when needed and that can be edited when needed too.

Thank you

Answer 1

You could use strings to dynamically name new variables or objects in WPF. For dynamically creating and editing Grid, you can refer to the following example
The code of xaml:

<StackPanel>  
        <ScrollViewer Height="300">  
            <ItemsControl Name="itemsControl" Background="Pink" ItemsSource="{Binding GridCollection}">  
  
            </ItemsControl>  
        </ScrollViewer>  
        <TextBox Name="tb" Text="{Binding Path=Num}" Width="200" Background="LightGreen"  HorizontalAlignment="Right"/>  
        <Button Click="Button_Click" Width="200" HorizontalAlignment="Right"  >create</Button>  
    </StackPanel>  

The code of xaml.cs:

using System.Collections.ObjectModel;  
using System.ComponentModel;  
using System.Windows;  
using System.Windows.Controls;  
using System.Windows.Data;  
using System.Windows.Media;  
namespace GridOfRectangles  
{  
  public partial class MainWindow : Window,INotifyPropertyChanged  
  {  
    public MainWindow()  
    {  
      InitializeComponent();  
      tb.DataContext = this;  
    }  
    private string num;  
    public string Num  
    {  
      get { return num; }  
      set  
      {  
        if (value != num)  
        {  
          num = value;  
          OnPropertyChanged("Num");  
        }  
      }  
    }  
    private ObservableCollection<Grid> GridCollection { get; set; }  
    private void CreateGridDynamic ()  
    {  
      GridCollection = new ObservableCollection<Grid>();  
      for (int i = 0; i < 10; i++)  
      {  
        Grid dynamicGrid = new Grid();  
          
        var myBinding = new Binding("")  
        {  
          Source = int.Parse(Num)  
        };  
        dynamicGrid.SetBinding(Grid.WidthProperty, myBinding);  
  
        dynamicGrid.Height = 100;  
        dynamicGrid.Background = new SolidColorBrush(Colors.AliceBlue);  
        ColumnDefinition co1 = new ColumnDefinition();  
        ColumnDefinition co2 = new ColumnDefinition();  
        dynamicGrid.ColumnDefinitions.Add(co1);  
        dynamicGrid.ColumnDefinitions.Add(co2);  
        RowDefinition gridRow1 = new RowDefinition();  
        gridRow1.Height = new GridLength(45);  
        RowDefinition gridRow2 = new RowDefinition();  
        gridRow2.Height = new GridLength(45);  
        dynamicGrid.RowDefinitions.Add(gridRow1);  
        dynamicGrid.RowDefinitions.Add(gridRow2);  
  
        TextBox textBox = new TextBox();  
        textBox.Text = i.ToString();  
        textBox.FontWeight = FontWeights.Bold;  
        textBox.Foreground = new SolidColorBrush(Colors.Green);  
        Grid.SetRow(textBox, 0);  
        Grid.SetColumn(textBox, 0);  
        dynamicGrid.Children.Add(textBox);  
  
        GridCollection.Add(dynamicGrid);  
      }  
    }  
    private void Button_Click(object sender, RoutedEventArgs e)  
    {  
      CreateGridDynamic();  
       
      itemsControl.ItemsSource = GridCollection;  
    }  
    public event PropertyChangedEventHandler PropertyChanged;  
    protected void OnPropertyChanged(string propertyName)  
    {  
      PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));  
    }  
  }  
}  

The picture of result:

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