C# with keyword equivalent

There’s no with keyword in C#, like Visual Basic.
So you end up writing code like this:

this.StatusProgressBar.IsIndeterminate = false;
this.StatusProgressBar.Visibility = Visibility.Visible;
this.StatusProgressBar.Minimum = 0;
this.StatusProgressBar.Maximum = 100;
this.StatusProgressBar.Value = percentage;

Here’s a work around to this:

this.StatusProgressBar.Use(p =>
{
  p.IsIndeterminate = false;
  p.Visibility = Visibility.Visible;
  p.Minimum = 0;
  p.Maximum = 100;
  p.Value = percentage;
});

Saves you repeatedly typing the same class instance or control
name over and over again. It also makes code more readable since it
clearly says that you are working with a progress bar control
within the block. It you are setting properties of several controls
one after another, it’s easier to read such code this way
since you will have dedicated block for each control.

It’s a very simple one line function that does it:

public static void Use<T>(this T item, Action<T> work)
{
    work(item);
}

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You could argue that you can just do this:

var p = this.StatusProgressBar;
p.IsIndeterminate = false;
p.Visibility = Visibility.Visible;
p.Minimum = 0;
p.Maximum = 100;
p.Value = percentage;

But it’s
not elegant. You are introducing a variable “p” in the
local scope of the whole function. This goes against naming
conventions. Morever, you can’t limit the scope of
“p” within a certain place in the function.

Update: Previously I proposed a way to do it without generic
extention method which was not so clean. Andy T posted this cleaner
solution in comments.