Question

In a C# WPF program I have a grid that I have successfully populated with my data. One column has a button that I want to link to an edit page. The code is below.

var col = new DataGridTemplateColumn();
col.Header = "Edit";
var template = new DataTemplate();
var textBlockFactory = new FrameworkElementFactory(typeof(Button));
textBlockFactory.SetBinding(Button.ContentProperty, new System.Windows.Data.Binding("rumId"));
textBlockFactory.SetBinding(Button.NameProperty, new System.Windows.Data.Binding("rumId"));
textBlockFactory.AddHandler( Button.ClickEvent, new RoutedEventHandler((o, e) => System.Windows.MessageBox.Show("TEST")));
template.VisualTree = textBlockFactory;
col.CellTemplate = template;
template = new System.Windows.DataTemplate();
var comboBoxFactory = new FrameworkElementFactory(typeof(Button));
template.VisualTree = comboBoxFactory;
col.CellEditingTemplate = template;
dgData.Columns.Add(col);

The code successfully runs and I get a message box every time I choose a button.

How can I get this to call another method and then retrieve from this the row number of the button that I chose?

The subsequent method would look something like, how can I call it?

void ButtonClick(object sender, MouseButtonEventArgs e)
{
MessageBox.Show("hi Edit Click 1");
// get the data from the row
string s = myRumList.getRumById(rumid).getNotes();
// do something with s
}

Answer 1

Just bind the Id, or better yet the entire data object, as the CommandParameter

void ButtonClick(object sender, MouseButtonEventArgs e)
{
    MessageBox.Show("hi Edit Click 1");

    Button b = sender as Button;

    // Get either the ID of the record, or the actual record to edit 
    // from b.CommandParameter and do something with it
}

This will also work if you decide to switch your application so it uses the MVVM design pattern. For example, the XAML would look like this:

<Button Command="{Binding EditCommand}"
        CommandParameter="{Binding }" />