VB studio 2010 codes to create listbox that can receive data from textbox and data can be deleted as well.?

Question

Hello everyone. I'm a beginner to VB. I need to create the TextBox which can key in number data only, like -3.58, 999.23 , etc. And once I click the "Add" Button, this data will show up in another ListBox.

I should be able to delete the data in this ListBox as well by click on those individual numbers in the ListBox and either have another button or just simply click delete button on the keyboard to delete it. Then, I might key in 10 numbers to the listbox, but I should be able to select only some numbers (by click on the numbers in the listbox) and click on several other buttons to perform, sum, or average, or product, or standard deviation value of all the numbers I selected.

Could anyone please help to explain how I can write the codes for this operation?
Thank you very much for your time.

Answer 1

Add the inputs for the TextBox..

Answer 2

Well, make sure you don't forget the variables and data types.

Add the inputs for the TextBox and ListBox.

Answer 3

once you delete it out of your recycle bin the guidance of the records are lost, even nevertheless the records call keeps to be imprinted someplace deep indoors the HDD "there are some instructions that could retrieve this, or possibly some it is waiting to retrieve the achieved checklist yet i dont understand of any application like that off hand i in actuality understand that I extremely have considered them someplace" all i understand to declare is to google it...