CODEWITHSUNDEEP
c#maui
Freudi
Freudi

Reputation: 155

Get Build Date in .NET MAUI csproj

I tried to get build date in the csproj of a .NET MAUI solution file like I did in a regular WPF Application: 1.0 $([System.DateTime]::Now.ToString())

But I cant compile it , I get an error NETSDK1005 ... project.assets.json I tried it with the current VS2022 17.4.3 and also Preview 17.5.0 2.0

If it don't work with ApplicationDisplayVersion is there any other way to get the build date at runtime ?

Upvotes: 1

Views: 1075

Answers (1)

Liqun Shen-MSFT
Liqun Shen-MSFT

Reputation: 8220

You could use MSBuild property. Besides having only the assembly version we can have the version + time of the build. We could use SourceRevisionId tag to tell .NET compiler do this.

Add these following to yourappname.csproj file

<PropertyGroup>
        <SourceRevisionId>build$([System.DateTime]::UtcNow.ToString("yyyyMMddHHmmss"))</SourceRevisionId>
</PropertyGroup>

Then you could retrieve the build date through AssemblyInformationalVersionAttribute using the following code:

private static DateTime GetBuildDate(Assembly assembly)
{
    const string BuildVersionMetadataPrefix = "+build";

    var attribute = assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>();
    if (attribute?.InformationalVersion != null)
    {
        var value = attribute.InformationalVersion;
        var index = value.IndexOf(BuildVersionMetadataPrefix);
        if (index > 0)
        {
            value = value.Substring(index + BuildVersionMetadataPrefix.Length);
            if (DateTime.TryParseExact(value, "yyyyMMddHHmmss", CultureInfo.InvariantCulture, DateTimeStyles.None, out var result))
            {
                return result;
            }
        }
    }
    return default;
}

Then you could get build date through the method

DateTime dt = GetBuildDate(Assembly.GetExecutingAssembly());

For more info, you could refer to Getting the date of build of a .NET assembly at runtime.

Hope it works for you.

Upvotes: 3

Related Questions