Rama, one of our readers emailed this:
Hello Chandoo I am very new to vba. Help me with this
Q) I Have Many List boxes In That I need to Hide Few Of them Using Check box
Example:If I have List boxes Like A,A1,B,B1
If I Check On Check box A(Captioned As A) It Should show A,A1 List boxes. If I Unchecked it Should Hide A,A1 List boxes
In a similar manner if i checked Check box B .It Should show B,B1 List boxes. If I Unchecked it Should Hide B,B1 List boxes
Show Hide list boxes by using a check box
We can use check box and a bit of VBA to do this easily. First see this demo:

How to show or hide list boxes – Video
Although the concept behind this is very simple, explaining it in a post will make it very long. So I made a 10 minute video. Please watch it below:
[Watch this on our youtube page]
For more on this technique – see Customer Service Dashboard article.
To insert check boxes & list boxes see this tutorial.
Download example workbook
Click here to download the example workbook to understand this technique better. Examine the code in module 1 & 2 to know more.
How do you hide / show things using VBA?
Selectively hiding or showing is a great way to enhance your models, dashboards or reports. I use this technique very often. Most of my dashboards, products etc. contain interactive help that user can see or hide with a click. In background, I use few lines of VBA to do this magic.
What about you? Do you face similar situations? How do you handle them? Share your VBA tips & ideas using comments.
Are you new to VBA?
If so, you have hit a treasure chest. Start with our Excel VBA page and get the basics. Once you are ready to take a deep dive, go thru dozens of VBA / Macro Examples.
And when you want more, consider joining our VBA classes.














8 Responses to “What is LAMBDA? 4 Practical examples to REALLY understand it”
Thanks so much for this, it's utterly brilliant!
Silly question - I assume LAMDA will work with dynamic arrays?
Very much so. Many of the new functions like MAP only make sense in the context of dynamic arrays and Lambda functions.
As usual, very informative material. Easy to understand and apply!
Thanks for making everyone awesome!
Easy to understand Lambda function through this tutorial. Thanks Chandoo.
I have Officce 365 (updated), but I can't see LAMBDA function. 🙁
I dont see "Office Insider" option in my excel 365.
Another option for First Monday...
=LAMBDA(anydate,WORKDAY.INTL(EOMONTH(anydate,-1),1,"0111111"))
Loving the binary options in WORKDAY.INTL David...