Working with strings

Adam89 · #1 (**permalink**) 05-17-11, 10:12

Hey up everyone,

I'm just wondering what's the best way to build up a long string in VB? I've tried a few variations but getting errors every time.

For example:

Code:

myVar = "first part of string"
myVar += "second part of string"

Code:

myVar = "first part of string"
myVar &= "second part of string"

Code:

myVar = "first part of string\
second part of string"

As said though I just keep getting errors. It's a long string that will have a lot of variables concatenated within it, so I don't want to be all on the same line for readability purposes.

Thanks for any help,

Adam

healdem · #2 (**permalink**) 05-17-11, 10:21

either all in one
or use the string concatenation symbol '&'
myvar = 'value of my variable: ' & avariable & vbcrlf
myvar = myvar & 'value of my next variable: ' & bvariable
you can use either the ' or " symbols to delimt text

Adam89 · #3 (**permalink**) 05-17-11, 11:00

Thanks for your response. I actually discovered the line continuation character ("_") which allows me to achieve roughly what I wanted:

Code:

myVar = "first part of string" _
      & "second part of string"

healdem · #4 (**permalink**) 05-17-11, 11:22

Code:

myVar = "first part of string" _
      & "second part of string"

is syntactically the same as

Code:

myVar = "first part of string" & _
       "second part of string"

and

Code:

myVar = "first part of string" & "second part of string"

it has no direct impact on string concatenation, thats triggered by the & symbol. providing you leave a space before the _ the VB compiler treats subsequent limes as part of the first line. you can use it to merge several lines into one. perhaps its best use is to made the code more legible

rokslide · #5 (**permalink**) 05-18-11, 00:33

Are you talking classic Vb (eg VB 6.0) or VB.Net?

If you are talking VB.Net and long strings with lots of additions you might want to look at the Stringbuilder class which is a lot more memory friendly.

Adam89 · #6 (**permalink**) 05-18-11, 15:06

Classis VB...

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