CODEWITHSUNDEEP
c#.netwpfxaml
Night Walker
Night Walker

Reputation: 21280

Bind MenuItems dynamically

I am trying to bind MenuItem dynamically.

I have public List<string> LastOpenedFiles { get; set; } is my data source. My command that I try to run is public void DoLogFileWork(string e) 

<MenuItem Header="_Recent..."
          ItemsSource="{Binding LastOpenedFiles}">
  <MenuItem.ItemContainerStyle>
    <Style TargetType="MenuItem">
      <Setter Property="Header"
              Value="What should be here"></Setter>
      <Setter Property="Command"
              Value="What should be here" />
      <Setter Property="CommandParameter"
              Value="What should be here" />
    </Style>
  </MenuItem.ItemContainerStyle>
</MenuItem>

I want on each entry from LastOpenedFiles is I click on it to go to DoLogFileWork function with the entry value that I clicked on.

Thanks for assistance.

Upvotes: 1

Views: 179

Answers (1)

Psytronic
Psytronic

Reputation: 6113

<Setter Property="Header" Value="What should be here"></Setter>

Nothing, you've already set this above to _Recent...

<Setter Property="Command" Value="What should be here"/>
<Setter Property="CommandParameter" Value="What should be here"/>

Are you using a MVVM approach? If so, you'll need an ICommand exposed on the ViewModel that the Window/Control is bound to, take a look at the RelayCommand mentioned in this article (or is native in VS2012 I believe).

This is the sort of thing you'd setup in your VM:

    private RelayCommand _DoLogFileWorkCommand;
    public RelayCommand DoLogFileWorkCommand {
        get {
            if (null == _DoLogFileWorkCommand) {
                _DoLogFileWorkCommand = new RelayCommand(
                    (param) => true,
                    (param) => { MessageBox.Show(param.ToString()); }
                );
            }
            return _DoLogFileWorkCommand;
        }
    }

Then in your Xaml:

<Setter Property="Command" Value="{Binding ElementName=wnLastOpenedFiles, Path=DataContext.DoLogFileWorkCommand}" />
<Setter Property="CommandParameter" Value="{Binding}"/>

So here, you're binding the Command of the MenuItem to be the DoLogFileWorkCommand declared above, and CommandParameter is being bound to the string in the List that the MenuItem is bound to.

Upvotes: 1

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