FileSystemItem.Thumbnail Property

Specifies an icon (URL) to be used as the file system item’s thumbnail.

Namespace: DevExtreme.AspNet.Mvc.FileManagement

Assembly: DevExtreme.AspNet.Core.dll

Declaration

public string Thumbnail { get; set; }

Property Value

Type	Description
String	The URL.

Remarks

The FileManager allows you to provide custom icons to be used as thumbnails.

C#

public IEnumerable<FileSystemItem> GetItems(FileSystemLoadItemOptions options) {
    int parentId = ParseKey(options.Directory.Key);
    var fileItems = GetDirectoryContents(parentId);

    var clientItemList = new List<FileSystemItem>();
    foreach(var item in fileItems) {
        var clientItem = new FileSystemItem {
            Key = item.Id.ToString(),
            Thumbnail = item.Thumbnail,
            //...
        };
        clientItemList.Add(clientItem);
    }
    return clientItemList;
}