[RESOLVED] Line to array help?

[crazy1993]

Hello Everyone!

I am trying to take a line from a text file and get the second half of the line "my.settings.useqs = true" is my example and i want to get true out of the line and then make a textbox contain the text aftter the = sign basicly.

http://www.vbforums.com/showthread.php?t=626903
I posted something similar but i am having a hard time trying to figure this out. I also don't really understand how I used it in the first place.

If anyone can help me that would be great!

Thanks!

[jmcilhinney]

You've already been shown in that other thread how to split a string on an '=' and get the second half. That's all you need to do, once you have the string. To get that, you can either open a StreamReader and call ReadLine until you get the desired line, or you can call File.ReadAllLines (which is also mentioned in that other thread) to get a String array and then get the desired element from that.

[crazy1993]

Yes i am aware of that but i don't understand the part about using a textbox this time. I used a listbox last time and used display member and such then. Textboxs, don't have display member so that is were my problem comes in.

        Dim items = (From line In IO.File.ReadAllLines(FILE_NAME) Where line.StartsWith("my.settings") Let parts = line.Split(New String() {" = "}, StringSplitOptions.None)
                                                   Select New With {.setting = parts(0).Split("="c)(1), .value = parts(1).Split("="c)(1)}).ToArray()

I think i made a mistake - the bolded code is in yellow and tells me:

"Index was outside the bounds of the array."

My file contains this

2.1.0.0
my.settings.font = "Arial"
my.settings.indent = "10"

[jmcilhinney]

When you call Split it returns a String array. Wen you get an element from a string array it returns a String. The Text property of a TextBox is type String. You assign the String to the property.

[crazy1993]

i somewhat understand but not fully. Would you be able to explain more please?

Appreciate the help

[jmcilhinney]

This is doing almost exactly what you want:

.setting = parts(0).Split("="c)(1)

You just have to assign the String to the Text of the TextBox instead of the 'setting' property of a dynamically created object.

[Shaggy Hiker]

The file that you are showing is much different than the file that you were showing in that other thread. The code certainly isn't going to work the same for one as for the other. For example, in the first thread, there were two = signs, but in the current file, as you have shown it, there is only one per line. Therefore, when you split on =, there will be a parts(0) and a parts(1), but neither of them will have = signs in them, so if you do split them on = (which is what you are doing), then the resulting arrays will only have one element. Therefore, when you attempt to look at the second element with (1), you are out of bounds.

[Shaggy Hiker]

Ah, JMC has not gone to bed yet.

[jmcilhinney]

Any moment now. It's 2:20 AM. Yawwwwnn! Tehe. I just yawned when I typed "yawn". Maybe I should type "get rich".

[crazy1993]

I apologize i completely forgot about this thread over Thanksgiving break! - Anyways, I have, with the help of a friend, figured out a way to do what was inteneded, we took a completly different aproach to the problem and foujnd some way to do it with an array and loops - I will look at what you guys have psoted though still and (due to harddrive failure that night! ARG) May end up rebuilding doing a new method since that friend has returned back to school - Recovery of hds is expensive Stupid logic file whatever hd! lol At least its under warrenty still!

Thank you all! You guys are always a great help! Peace