Button in a column, getting the row from which it came on the Click event handler

Question

I\'ve set the itemsource of my WPF Datagrid to a List of Objects returned from my DAL. I\'ve also added an extra column which contains a button, the xaml is below.

Answer 1

MyObject obj= (MyObject)((Button)e.Source).DataContext;

Answer 2

Another way which binds to command parameter DataContext and respect MVVM like Jobi Joy says button inherits datacontext form row.

Button in XAML

<RadButton Content="..." Command="{Binding RowActionCommand}" 
                         CommandParameter="{Binding RelativeSource={RelativeSource Mode=Self}, Path=DataContext}"/>

Command implementation

public void Execute(object parameter)
    {
        if (parameter is MyObject)
        {

        }
    }

Answer 3

Basically your button will inherit the datacontext of a row data object. I am calling it as MyObject and hope MyObject.ID is what you wanted.

private void Button_Click(object sender, RoutedEventArgs e)
{
    MyObject obj = ((FrameworkElement)sender).DataContext as MyObject;
    //Do whatever you wanted to do with MyObject.ID
}

Answer 4

Another way I like to do this is to bind the ID to the CommandParameter property of the button:

<Button Click="Button_Click" CommandParameter="{Binding Path=ID}">View Details</Button>

Then you can access it like so in code:

private void Button_Click(object sender, RoutedEventArgs e)
{
    object ID = ((Button)sender).CommandParameter;
}

Answer 5

If your DataGrid's DataContext is a DataView object (the DefaultView property of a DataTable), then you can also do this:

private void Button_Click(object sender, RoutedEventArgs e) {
   DataRowView row = (DataRowView)((Button)e.Source).DataContext;
}