Question

Is it possible to pass parameters to a catch block?
Here is some example code:

try 
{           
    myTextBox.Text = "Imagine, that could fail";
}
catch (Exception e)
{
    MessageBox.Show(e.Message); 
}

Can I pass the Textbox (myTextBox) now to my catch block if it would fail? smth. like that:

try 
{           
    myTextBox.Text = "Imagine, that could fail";
}
catch (Exception e, TextBox textBox)
{
    textBox.BorderBrush = Colors.Red;
    MessageBox.Show(e.Message); 
}

How I would do that?

Answer 1

No it’s not possible by standart.

What you can do, is to define your custom exception and assign parameters there, for example:

public class MyCustomException : Exception
{
    public string SomeAdditionalText {get;set;}
    ....
    //any other properties
    ...
}

and inside the method which raises an exception raise your own MyCustomException