I'm trying to make a simple Minecraft Mod installer and whenever I DownloadString something that is a .jar and try to DownloadFile it, it says that its illegal path. Is there a way around it or does it just accept .txt .exe along that.

var Mod = wc.DownloadString("Link to download that is .jar");

wc.DownloadFile(Mod, @"C:\Users\"   Environment.UserName   @"\AppData\Roaming\.minecraft\mods\Mod.jar");

That's the code I'm currently using worked fine for me when I was using .exe and .txt files but doesn't seem to work on .jar. Any work arounds?

CodePudding user response：

The DownloadFile method documentation says

Downloads the resource with the specified URI to a local file. C#

public void DownloadFile (Uri address, string fileName);

address:Uri

The URI specified as a String, from which to download data.

fileName:String

The name of the local file that is to receive the data.

https://docs.microsoft.com/en-us/dotnet/api/system.net.webclient.downloadfile?view=net-6.0

But in your example looks like you're first downloading the link as a string and then calling DownloadFile with that instead of the original Uri.

i.e. looks like you should be doing

wc.DownloadFile("Link to download that is .jar", Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), ".minecraft\mods\Mod.jar"));