How add a dash to the beginning of all lines of the text box except the first line in vb .net? #7464

VahidEra · 2023-01-20T19:41:51Z

VahidEra
Jan 20, 2023

hi guys,
i have a multiline textbox in my visualbasic project like this:

line1
line2
line3
line4

and i want to add a dash to beginig of all lines execpt the first line like this:

line1
- line2
- line3
- line4

with loop like for each line in textbox1.lines add dash to all lines, but i want to add dash to all lines except line one.

I have no idea how to do this
thank you helping me guys.

Answered by miloush

Assuming you don't care about performance very much, you would need:

split the string using String.Split, use e.g. Environment.NewLine as a seperator, this will give you an array of strings
go through the array and add dashes at the beginning of the strings you want (i.e. replace the element in the array with a new string)
join the array back into single string using String.Join and Environment.NewLine as a separator
set the TextBox.Text to the joined string

miloush · 2023-01-20T22:29:32Z

Assuming you don't care about performance very much, you would need:

split the string using String.Split, use e.g. Environment.NewLine as a seperator, this will give you an array of strings
go through the array and add dashes at the beginning of the strings you want (i.e. replace the element in the array with a new string)
join the array back into single string using String.Join and Environment.NewLine as a separator
set the TextBox.Text to the joined string

1 reply

@miloush Dear friend thank you very much.
that is exactly what i wanted.