public static async Task <List <ItemMaster> > LoadFromFile(this List <ItemMaster> itemMasters, string filePath = "")
{
if (string.IsNullOrEmpty(filePath))
{
filePath = defaultFilePath;
}
if (itemMasters.Count > 0) // clear all existing items so only loaded ones are in list
{
itemMasters.Clear();
}
using (ZipArchive zip = ZipFile.Open(filePath, ZipArchiveMode.Read))
{
foreach (ZipArchiveEntry entry in zip.Entries)
{
using (StreamReader sr = new StreamReader(entry.Open()))
{
var text = await sr.ReadToEndAsync();
var itemMaster = ItemMaster.FromJson(text);
itemMasters.Add(itemMaster);
}
}
}
return(itemMasters);
}
