WPF中的内联事件处理程序

Question

I create textbox controls dynamically through code behind. I have to bind a handker on 'LostFocus' event of the newly created textbox. And then add it to a Listbox. I am able to do this with below code.

TextBox txtBox = new TextBox();
txtBox.Text ="XXXX";
txtBox.Width = 100;
txtBox .LostFocus += new RoutedEventHandler(updateTextHandler);
listBox.Items.Add(txtBox);

But, I want to shorten this code and do like

listServer.Items.Add(new TextBox()
                {
                    Text = "XXXXX",
                    Width = 100

                });

How do I add event handler for the controls initialized inline? I tried, but doesn't work

this.LostFocus +=new RoutedEventHandler(updateButtonHandler) 

Answer 1

As you can read in MSDN :

Object initializers let you assign values to any accessible fields or properties of an object at creation time

Events aren't fields or properties so you can't set them in initializer. Especially as they are not accessible by = but only by += .