CODEWITHSUNDEEP
c#xamlwindows-store-apps
Ethical
Ethical

Reputation: 1

Linking TextBlock and TextBox in c# xaml

login.xaml

<TextBox x:Name="player1"  HorizontalAlignment="Left" Margin="544,280,0,0" TextWrapping="Wrap"  VerticalAlignment="Top" Height="44" Width="280"  CacheMode="BitmapCache" FontFamily="Century Schoolbook" FontSize="26">
        <TextBox.Foreground>
            <SolidColorBrush Color="White" />
        </TextBox.Foreground>
        <TextBox.Background>
            <SolidColorBrush Color="#FF1EA600" Opacity="0.645"/>
        </TextBox.Background>
    </TextBox>

Now i want to transfer the name provided by user to textblock, so that it can change the default name that is "player 1 turn"

MainPage.xaml

<TextBlock x:Name="playerTurn" TextWrapping="Wrap" Text="Player 1 Turn" VerticalAlignment="Top" Height="70" FontSize="50" 
            Foreground="Cyan" TextAlignment="Center" FontFamily="Century Gothic" />

So therefore i had created two different pages one is 'login.xaml' & 'MainPage.xaml' But i'm not able to access the user input data to textblock!

Upvotes: 0

Views: 534

Answers (3)

szubajak
szubajak

Reputation: 485

MVVM solution:

ViewModel:

public string PlayerName { get; set; }
public ICommand LoginCommand { get; private set; }

private void OnLogin(object obj)
{
    //STORE PlayerName in Global Context and after navigate to MainPage, read it.
    GlobalContext.PlayerName = this.PlayerName;
    this.Frame.Navigate(typeof(MainPage));
}

private bool CanLogin(object arg)
{
    return string.IsNullOrEmpty(PlayerName) ? false : true;
}

public CONSTRUCTOR()
{
    LoginCommand = new DelegateCommand<object>(OnLogin, CanLogin);
}

Xaml:

<TextBox Width="100" Height="20" Text="{Binding PlayerName, Mode=TwoWay}"></TextBox>
<Button Content="Login" Command="{Binding LoginCommand}"></Button>

Upvotes: 1

Stamos
Stamos

Reputation: 3998

I don't know about best practices but when i wanna have many info accessible from many pages:

I create a public class Info, a public static class Helper and I add my Info as

public static Info myInfo = new Info()

and in each page addthis.DataContext = Helper.my or create a property Info do this.Info = Helper.myInfo and bind it or you can also do TextBlock.Text = Helper.myInfo.Player1Name

I ll add some code if you like

Upvotes: 0

user3497034
user3497034

Reputation:

You need to pass the value from login.xaml page to MainPage.xaml. There is no other way you can directly bind values to the control placed on different pages.

  1. I hope you have some button click event handler on login.xaml page. Pass value during navigation to the page and then get value on another page.

Send(login.xaml) :

string s = player1.Text;
this.Frame.Navigate(typeof(MainPage),s );

Receive(MainPage.xaml):

protected override void OnNavigatedTo(NavigationEventArgs e)
{
   string s = Convert.ToString(e.Parameter);
   playerTurn.Text = s;
}
  1. Another way is, take a global variable and and assign textbox value to it and then assign same value to textblock on another page.

Upvotes: 1

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