CODEWITHSUNDEEP
c#wpfxamlwindows-phone-8
user2161228
user2161228

Reputation:

Property error in Windows phone development in C# and XAML

This is a Water Hackathon, 2014 Project. I am a newbie in windows phone. I was developing an app for a project. part of the app is that user will write his number and some text and the number and text will be emailed to a particular person. I used drag n drop UI and wrote the code of email send in Visual C#. Here is the error:

Failed to assign to property 'System.Windows.UIElement.AllowDrop'.[Line: 53 Position: 76]
at
System.Windows.Application.LoadComponent(Object component, Uri resourceLocator)
at
PhoneApp2.MainPage.InitializeComponent()
at PhoneApp2.MainPage..ctor()

part of the C# code:

   private void emailSend(object sender, RoutedEventArgs e)
    {
        // Create a new instance of the class EmailComposeTask with which you can send email
        var emailcomposer = new EmailComposeTask

        {
            // I enter the recipients to send the email using the To property of the class                         
                 EmailComposeTask
            To = string.Concat("mailto:","[email protected]"),

            // Set the title of the property by Subject
            Subject = "number",

            // Enhanced the value of the Body property EmailComposeTask class, this is the 
                   content that will display the recipient
            Body = bigText.Text,
        };

        // Start the email application on your device to send the Email
        emailcomposer.Show();
    }

part of the XAML file:

      <TextBlock Text="Wheres the problem" Style="{StaticResource PhoneTextNormalStyle}" 
             FontSize="36" FontFamily="Andalus"/>

    </StackPanel>

    <!--ContentPanel - place additional content here-->
    <Grid x:Name="ContentPanel" Grid.Row="1" Margin="10,0,14,0" 
      RenderTransformOrigin="0.463,0.232">
        <TextBox Name="number" HorizontalAlignment="Left" Height="88" Margin="0,98,0,0"   
        TextWrapping="Wrap" Text="Please enter your phone number" VerticalAlignment="Top" 
        Width="456"/>

        <TextBlock Name="bigText" HorizontalAlignment="Left" AllowDrop="True" TextWrapping="Wrap" 
           Text="Users will write their problem in here." VerticalAlignment="Top" 
            Margin="0,231,0,0" Height="414" Width="456" Foreground="White"/>

    </Grid>
    <Button Name="sendButton" Content="Send your problem" HorizontalAlignment="Stretch" 
      VerticalAlignment="Top" Margin="10,658,0,0" Grid.Row="1" BorderBrush="#FF996D6D" 
     Background="#FF081359"/>

Thank you in advance.

Upvotes: 0

Views: 224

Answers (1)

steveg89
steveg89

Reputation: 1827

You need to replace TextBlock. TextBlock is only used for displaying text, so you can't edit it (eg, drop text onto it). TextBox allows input and will let you drop text into it.

<!--ContentPanel - place additional content here-->
    <Grid x:Name="ContentPanel" Grid.Row="1" Margin="10,0,14,0" 
      RenderTransformOrigin="0.463,0.232">
        <TextBox Name="number" HorizontalAlignment="Left" Height="88" Margin="0,98,0,0"   
        TextWrapping="Wrap" Text="Please enter your phone number" VerticalAlignment="Top" 
        Width="456"/>

        <TextBox Name="bigText" HorizontalAlignment="Left" AllowDrop="True" TextWrapping="Wrap" 
           Text="Users will write their problem in here." VerticalAlignment="Top" 
            Margin="0,231,0,0" Height="414" Width="456" Foreground="White"/>

    </Grid>
    <Button Name="sendButton" Content="Send your problem" HorizontalAlignment="Stretch" 
      VerticalAlignment="Top" Margin="10,658,0,0" Grid.Row="1" BorderBrush="#FF996D6D" 
     Background="#FF081359"/>

Upvotes: 1

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