How to Act when ENTER is Pressed with SAPIEN PowerShell Studio

I’m deep into writing a new version of the stock monitor that I use to manage my investments. I like things to work quickly so when I enter a stock symbol in a textbox and press ENTER, I want things to start happening. Here is how you make things happen with the KeyPress event. Remember, I like to instruct with very simple examples.

First off, create a simple form and place a textbox in it. I left the default name of textbox1.

Right click the textbox and select Add Events.

Scroll down and select KeyPress. You need to do it this way so the event registers. If you manual type the event to create it, it will not work.

Now click Create.

This is what you get.

The first thing we are going to do is to suppress the “Ding” noise that you will get if you press ENTER. We reference the event with $_. Check out the members available to this event.

We will set the Handled event to $true to prevent the “Ding”.

Now we will act to the KeyChar property. According to a standard ASCII chart, the carriage return is 13. We will use this with an IF statement to act on it.

We are only changing the color of the text boxes background to Green. This is where you would take your action. Here is the before and after.

Again, this is a very simple example that I hope will allow you to do very complex actions.

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