$csprojfilename = ".\OnpremsTools.csproj"

[xml]$csprojcontentsdeux = Get-Content -Path $csprojfilename;

"Current version number is " + $csprojcontentsdeux.Project.PropertyGroup.Version

$oldversionNumber = $csprojcontentsdeux.Project.PropertyGroup.Version

$versionparts = ($csprojcontentsdeux.Project.PropertyGroup.Version).split('.')

([int]$versionparts[-1])++

$versionpartsjoined = $versionparts -join('.')

$fileContent = Get-Content $csprojfilename

$textVersionToAdd = "        <Version>$versionpartsjoined</Version>"
$textFileVersionToAdd = "        <FileVersion>$versionpartsjoined</FileVersion>"
$textAssemblyVersionToAdd = "        <AssemblyVersion>$versionpartsjoined</AssemblyVersion>"
$textInformationalVersionToAdd = "        <InformationalVersion>$versionpartsjoined</InformationalVersion>"

$fileContent[12] = $textVersionToAdd
$fileContent[13] = $textFileVersionToAdd
$fileContent[14] = $textAssemblyVersionToAdd
$fileContent[15] = $textInformationalVersionToAdd


$fileContent | Set-Content $csprojfilename