After writing about the longest palindromic substring, now it is time to see the longest palindromic subsequence. What is the difference? Pretty much, if we take the word abracadabra: the longest substring is ada in abracadabra the longest subsequence is…
Inserting an image to Excel with VBA is actually one line: ThisWorkbook.Worksheets(1).Pictures.Insert ("C:\Users\myPic.png") The interesting part happens, when it should be correctly positioned. In order to position it the way we want, we need to give 3 parameters – the image…
The idea of the article is to make an updateable combobox, which takes all the keys of column A and writes them to the ComboBox. Then, upon selection of the corresponding values in the combobox, it provides the corresponding values…
The idea of the article is to show how to add, edit and remove specific entries of the ListBox in Excel through VBA: ListBox is a control, which is available through Developer>Insert>ActiveX>ListBox in Excel: Once you add it, it has…
Reversing words in a sentence with VBA in Excel is quite easy, using the built-in StrReverse function. StrReverse takes a string and reverses it. Thus, “VitoshAcademy.com” becomes “moc.ymedacAhsotiV”: The idea of reversing the order of the words in a sentence…
Some months ago #VBA was finally considered the most dreaded language in the 2019 StackOverflow survey: One of the reasons for this, is probably that #VBA is quite too easy to enter, thus plenty of non-IT professionals feel fascinated about…
There are parts of #VBA, that can scare any VBA developer, who has not bumped into other languages. Although, the “abstract class” term is quite popular in C# and other languages, and is quite easy to be created, in VBA,…
Reading from Excel in C# is actally not at tough as many VBA developers would assume. The simple reading is actually quite straightforward – there is only small little trick, requiring the adding of the Microsoft.Office.Interop.Excel reference to the Visual…
Some time ago I wrote an article for Data scraping from Internet with Excel , which was scraping book information from amazon.com, based on a given word. Thus, for a keyword as “VBA”, this is the data, printed in the immediate…
Adding shapes to a range in VBA with Excel is actually a trivial task, if you are aware of the Shapes.AddShape method. It has 5 parameters, 4 of which could be pretty easily remapped to the parameters of the range:…
Animation consists of some pictures. In general, there are about 24 pictures per second, in order to do the “magic”. This could be easily automated with Excel, using Application.Wait (Now + #12:00:01 AM#), if we agree to make it a bit old-fashioned, with 1 picture…
Writing for RegEx in VBA is sometimes a good idea and sometimes a bad idea. Anyway, if you need to write one, you better be careful. These are the RegEx articles in VBA in VitoshAcademy so far: https://www.vitoshacademy.com/vba-regex-in-excel-part-2/ https://www.vitoshacademy.com/vba-regex-in-excel/ So,…
=VLOOKUP and =INDEX(MATCH(),MATCH()) are well known formulas, if you need to get some value corresponding to another value from a specific column. The problem comes, when you are having more than one column or row, and you need to locate the…
So, the idea is the following – imagine that you have an NxN range, which should be filled out with consecutive numbers. Thus, if the range is 6×6, you start filling the numbers normally and once you reach the 6.…
Formatting a substring of a string in an Excel Cell is actually quite a challenging task. There are two ways to do it – select part of the substring that you wish to format and change its color. Then make…
Changing tab color of Excel is somehow useful. With VBA, it is easily programmed, as far as one can use the macro recorder to see the correct way to do it. However, if you need to change the color of…
Selecting multiple cells in Excel through VBA may be quite a difficult task. Although, using Select is not always a good practice, sometimes it should be done. To generate some random values, let’s run the following:
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Public Sub FullMe() Dim myCell As Range Dim myRange As Range Dim cnt As Long Set myRange = Range("A1:F20") For Each myCell In myRange myCell = cnt If cnt = 6 Then cnt = 1 cnt = cnt + 1 Next myCell End Sub |
After this, we have…
Excel and VBA are a powerful tool for simulation. The idea is to simulate dice throwing and to keep the best N throws as our score. Other model variables are Times I roll, which stands for how many times do…
Markov model is a a stochastic model describing a sequence of possible events in which the probability of each event depends only on the state attained in the previous event. Wikipedia This is a good introduction video for the Markov…
The worksheet events which are built within VBA are quite useful. One may build them quite easily in Excel and they work satisfactory. However, let’s imagine, that you have a merged cell as in the picture above and you want…
There is an ERP joke, claiming that the third most popular button of an ERP system is “Export to Excel” (after OK and Cancel). Thus, working with Excel from .Net is happens often. There are some pitfalls, that you should…
Imagine one of the most trivial tasks in Excel – remove rows from Excel, for which contain the number 1 in their first column. Or in the column below, these are the rows, which are selected. If you are familiar with…
The formulas in Excel, used through VBA are not easy. You need to write a string like “=IFERROR(OR((1=A1),(2=A2)),””No Error””,””Error””)” and this is really not easy and fun to debug. Furthermore, if it is false, VBA will nicely throw a runtime…
Trimming is a function, that reduces spaces. There are at least 4 ways to Trim a string in Excel/VBA: Trim VBA.Trim =Trim() WorksheetFunction.Trim Thus, is there a difference between these 4 actually? This is what MSDN says about String.Trim: Returns…
Using Visual Studio and Excel is actually quite fun – the Visual Studio advanced environment provides a bit more possibilities than the Visual Basic Editor, built-in Excel. In this article, about a year ago I have shown how to loop…
After writing that the built-in Find() function in VBA does not return the first value by default, a new interesting case with the Find function appeared. In order to simulate it, the following task could be imagined: Write the first…
If you are coding professionally in VBA, most probably you are using arrays every now and then and you have your own function for sorting an array. Something like this bubble sort or anything similar is what you have written…
There is a lot over the Internet, written for the dates in Excel, VBA and SQL Server, but still, there is quite much to be written. In general, it all has started, when the developers of Lotus 1-2-3 have decided…
Add comments in Excel with VBA
Adding comments with VBA is somehow quite a trivial task, if you already have the text of the comment and you are allowed to delete the comment if it is present. In general, the only difficult part is the check,…