Question

I am trying to split my current applications version number, but is removes the leading zeros.

How do i change my split to not remove the leading zeros.

Getting the currentVersionNo:

startUpAssembly.GetName().Version.ToString()

So for testing:

string versionNo = "7.01.7000.0";

string[] versionInfo = versionNo.Split('.');

This produces:

7
1 //Here i need it to be 01
7000
0

And i need it to NOT remove the leading zero. How do i achieve this?

Maybe there is a better solution using regex?

Answer 1

A System.Version isn’t an arbitrary string – it’s four integers. Leading zeroes are irrelevant, so not included when converting back to a string. That’s where you’re losing information – not in String.Split. You can see this very easily:

using System;

class Test
{
    static void Main()
    {
        Version version = new Version("7.01.7000.0");
        Console.WriteLine(version); // 7.1.7000.0
    }
}

Basically, your plan is fundamentally flawed, and you should change your design. You shouldn’t be trying to represent a version of “7.01.7000.0” to start with.

Additionally, you should take a step back and think about your diagnostic procedure: what made you think that String.Split was to blame here? Why wasn’t your first step looking at the result of startUpAssembly.GetName().Version.ToString()?