CODEWITHSUNDEEP
vb.netstringvb.net-2010
Jonathan Geers
Jonathan Geers

Reputation: 37

Working with a string in Visual Basic

I know a string is just a set of characters. I have entered a string in to visual basic using a textbox.

message = textbox1.text

Can i now go and change the position of the characters in the string? 

"Dogs" //string entered 
"odsg" //that must be output in textbox2
textbox2.text = Encrypted

How do i do this?

Upvotes: 0

Views: 245

Answers (2)

Olivier Jacot-Descombes
Olivier Jacot-Descombes

Reputation: 112259

I assume that you are trying to create a kind of autocorrect function like the one MS Word uses. I would use a dictionary to store corrections. The wrong word would be used as key and the right word as value

Dim dict = new Dictionary(Of String, String)

dict.Add("dogs", "odsg")
dict.Add("fiel", "file")
...

After having setup the dictionary

Dim input As String = textbox2.Text
Dim corrected As String

If dict.TryGetValue(LCase(input), corrected) Then
    textbox2.Text = corrected
End If

Upvotes: 0

Konrad Rudolph
Konrad Rudolph

Reputation: 545488

Can i now go and change the position of the characters in the string?

No. Strings in .NET are immutable – they cannot be changed. In order to modify a string in VB, you call a function which creates a new string based off the modified contents of the old string. That’s what all the string methods are doing.

It’s not entirely clear what your encryption function is supposed to do though. It seems to permute the letter positions, but what schema does it use for that?

Upvotes: 4

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