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jampostFlag for United States of America

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WPF code view vs Windows form code view

      I created an identical scenario in both a windows form and a WPF form, but only one of them had a problem; the WPF form. It is all centered around 2 Textboxes and one Label. Here is the very straight forward code.  I need to use the WPF form so I can get a form height that is not limited by my monitor.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      Private Sub Label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click

        TextBox13.Text = TextBox17.Text

    End Sub

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      
In case you are wondering (and I wouldn’t blame you) I did enter the code in the code view of the WPF form. If you know what code to enter in XAML to do the job, I would love to see that.


The Label1 click event where    TextBox13     copies from     TextBox17  worked fine in the windows form, but I got an error in the WPF form.

This error:
      
Handles clause requires a WithEvents variable defined in the containing type or one of it’s base types.
      
I also noticed that I had to declare the two text boxes in WPF, but did not in the windows form.

I guess the remedy is just a little beyond my experience level.
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MikeToole
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There is no Click event on a label in WPF, use a button control instead of the label, you can always use a template to change the appearance of it.
The event can be wired up either by using 'Handles ' on the event procedure or by coding the 'Click' attribute in XAML to define the evet procedure there (as shown below for Button2), I tend to prefer the latter.
The Name attribute is required on a TextBox if you want to refer to it in code.
<Window x:Class="Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="300">
    <Grid>
        <TextBox Height="23" HorizontalAlignment="Left" Margin="70,62,0,0" Name="TextBox1" VerticalAlignment="Top" Width="120" />
        <TextBox Height="23" HorizontalAlignment="Left" Margin="70,105,0,0" Name="TextBox2" VerticalAlignment="Top" Width="120" />
        <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="76,146,0,0" Name="Button1" VerticalAlignment="Top" Width="75" />
        <Button Content="Button Too" Click="Button2_Click"
                Height="23" HorizontalAlignment="Left" Margin="78,184,0,0" Name="Button2" VerticalAlignment="Top" Width="75" />
    </Grid>
</Window>

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles Button1.Click
        TextBox1.Text = TextBox2.Text
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
        ' Do things
    End Sub

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ASKER

MikeToole,

  Thank you. I am going to take your code for a test drive right now.
Avatar of jampost

ASKER

Mike,

      First of all  --  Thank you for your help.   You are right  --  the VB event in WPF is a pain. It wants a with event variable every time and I am not sure about the syntax. In the XAML  --  I don't see any thing in your XAML code that looks like "Copy from TextBox17 and Past to TextBox13".  Or maybe you were just telling me that it can be done. I have gotten on first base with VB in the Windows forms and I just need to get there with WPF also.  
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MikeToole
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