can't save file in required location in C# metro app

Question

I'm developing a metro app that uses file input and output. The code I used to save the file is

StorageFolder appfolder = await Windows.Storage.KnownFolders.DocumentsLibrary.CreateFolderAsync("Appdata.abc", Windows.Storage.CreationCollisionOption.ReplaceExisting);
StorageFile file = await Windows.Storage.KnownFolders.DocumentsLibrary.CreateFileAsync(DateFileName + ".uvraj", Windows.Storage.CreationCollisionOption.ReplaceExisting);

Now how can I create/save my file inside the folder I created??

Answer 1

Call the method on the appfolder object, instead of the KnownFolder you're using.

Like this:

StorageFolder appfolder = await Windows.Storage.KnownFolders.DocumentsLibrary.CreateFolderAsync("Appdata.abc", Windows.Storage.CreationCollisionOption.ReplaceExisting);
StorageFile file = await appfolder.CreateFileAsync(DateFileName + ".uvraj", Windows.Storage.CreationCollisionOption.ReplaceExisting);