How do I pass the information from View to ViewModel with DelegateCommand?

Question

In my View, I have a button.

When the user clicks this button, I want to have the ViewModel save the context of the TextBlock in the database.

Answer 1

You're asking about passing data via the button Command.

What you actually want, I think, is to bind your Textbox's text to a public property in your ViewModel:

public string FirstName{ get; set; }
...
private void Save()
{
    //textBox's text is bound to --> this.FirstName;
}