CODEWITHSUNDEEP
c#wpfmvvm
SKN
SKN

Reputation: 538

Generic Context Menu for multiple controls in MVVM

I have a WPF window with 4 read-only TextBoxes in it, to all of which I need to enable a context menu with copy option. Currently I'm doing with code behind. But I heard it is not a good approach.

<TextBox Name="StepsTextBox" 
         Text="{Binding Steps, Mode=OneWay}" 
         IsReadOnly="True" 
         Click="Copy_click"/>

Code-Behind: 

private void Copy_click(object sender, RoutedEventArgs e)
{
    StepsTextBox.Copy();
}

I tried using MVVM as follows:

<TextBox.ContextMenu>
    <ContextMenu>
        <MenuItem Header="Copy" Command="{Binding OnCopyButtonClick}" CommandParameter="{Binding ElementName=StepsTextBox}"/>
    </ContextMenu>
</TextBox.ContextMenu>

But how do I access this text box from the code if I pass it as parameter. And also how can I keep this code generic for all the textboxes?. Could anyone help?. Thanks in advance.

private void OnCopyButtonClick(TextBox textBox)
{
    //??
}

Upvotes: 0

Views: 379

Answers (1)

Novitchi S
Novitchi S

Reputation: 3741

You can use the build-in ApplicationCommands.Copy. No need to implement anything, the copy functionality is already implemented.

<TextBox.ContextMenu>
    <ContextMenu>
        <MenuItem Header="Copy" Command="Copy" />
    </ContextMenu>
</TextBox.ContextMenu>

You will still have to select the text before copying it, but that's to be expected when copying text.

Upvotes: 1

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