I want to loop through files and always make sure its just one item in the array I am looping through
var files = Request.Form.Files;
var singleFile = files[0];
foreach (var file in singleFile)
{
}
I am getting the error foreach statement cannot operate on variables of type '?' because '?' does not contain a public definition for 'GetEnumerator'
How can I fix this ! Thanks
You can't loop through an item that is not a collection type. You have assigned the first file in Request.Form.Files to a variable. So this variable references a single file not all.
You can use the Count-property of the HttpFileCollection:
int fileCount = Request.Form.Files.Count;
if(fileCount > 0)
{
HttpPostedFile firstFile = Request.Form.Files[0];
// do something with it ....
}
If you want to enumerate all you can use a loop but on Request.Form.Files:
foreach (HttpPostedFile file in Request.Form.Files)
{
// do something with it
}
The error is pretty clear. singleItem is just one single item from your original collection, not the actual collection. If you want to check, that the collection has only one element, use files.Count:
if(files.Count != 1)
Console.WriteLine("Evil, evil");
else
{
var singleFile = files[0];
// ....
}
try this, it will give the first item of collection. if the collection count is 0, then it will return null.
Request.Form.Files.FirstOrDefault()
Request.Form.Files is not an array but a HttpFileCollection which doesn't implement IEnumerable<T> this won't compile
singleFilealready contains first item of the array.files[0]will always get the first item in the collection. If that's all you want you're done. You can't iterate that item because it is an item, not a collection.