public async Task <StorageFile> SaveInFile()
{
var file = await TmpBaseFolder.CreateFileAsync(XmlDocName, CreationCollisionOption.ReplaceExisting);
var strBdr = new StringBuilder();
using (var xw = XmlWriter.Create(new StringWriter(strBdr)))
{
var dataSer = new DataContractSerializer(typeof(List <CanvasData>));
dataSer.WriteObject(xw, Datas);
XmlKeeping?.Invoke(xw);
xw.Flush();
await FileIO.WriteTextAsync(file, strBdr.ToString());
}
var imgfile = await TmpBaseFolder.CreateFileAsync(ImageFileName, CreationCollisionOption.ReplaceExisting);
using (var fs = await imgfile.OpenAsync(FileAccessMode.ReadWrite))
{
await SaveInStreamAsync(fs);
await fs.FlushAsync();
}
return(await Wrapper());
}
private async Task GetTmpSaveFolder()
{
TmpBaseFolder = await ApplicationData.Current.LocalCacheFolder.CreateFolderAsync(BaseFolderName, CreationCollisionOption.ReplaceExisting);
TmpSaveBackgroundFolder = await TmpBaseFolder.CreateFolderAsync(TmpSaveBackgroundsFolderName, CreationCollisionOption.ReplaceExisting);
TmpSaveLayersFolder = await TmpBaseFolder.CreateFolderAsync(TmpSaveLayersFolderName, CreationCollisionOption.ReplaceExisting);
}