public Task <string> GetFileNameFromUserForOpen()
{
var fileSpecifications = FileHandlers.Where(fr => fr.Metadata.CanRead).Select(fr => new FileSpecification(fr.Metadata.DisplayName, fr.Metadata.FileExtensions));
var filter = string.Join("|",
from r in fileSpecifications.OrderBy(f => f.DisplayName)
let exts = string.Join(";", r.FileExtensions.Select(x => "*" + x))
select string.Format("{0}|{1}", r.DisplayName, exts));
var all = string.Format("{0}|{1}",
"All supported types",
string.Join(";", fileSpecifications.SelectMany(f => f.FileExtensions).Select(x => "*" + x).OrderBy(x => x)));
filter = string.Join("|", all, filter);
var dialog = new OpenFileDialog();
dialog.DefaultExt = fileSpecifications.First().FileExtensions.First();
dialog.Filter = filter;
var result = dialog.ShowDialog();
if (result != true)
{
return(Task.FromResult <string>(null));
}
return(Task.FromResult(dialog.FileName));
}
public Task <string> GetFileNameFromUserForSave()
{
var x = FileHandlers.Where(fw => fw.Metadata.CanWrite).Select(fw => new FileSpecification(fw.Metadata.DisplayName, fw.Metadata.FileExtensions));
return(GetFileNameFromUserForWrite(x));
}