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Toolbar Commands

The Telerik UI for ASP.NET MVC FileManager component contains a nested Telerik UI for ASP.NET MVC Toolbar component.

The toolbar has a predefined set of tools which you can show or hide, depending on your preferences and business scenario. By default, the toolbar contains the following tools:

  • New Folder button, allowing you to create new folders in the current location.
  • Upload Button prompting you with a window to upload files.
  • Sort By dropdown, allowing you to sort by a number of predicates
  • Views button group to control
  • View Details switch button to toggle the Preview Pane visibility
  • Search textbox to filter the content

Inbuilt Sort functionality in Telerik UI for ASP.NET MVC FileManager:

Customizing the Toolbar Commands

To Enable/Disable a Toolbar command button or update the its text you can use the Toolbar.Items() configuration option:

    .Toolbar(toolbar => toolbar.Items(items =>
            items.Add("").Text("Add New Folder").Enable(false).Command("CreateFolderCommand").Type("button");

Adding Custom Commands to the Toolbar

As of Kendo UI R1 2020 SP1 the kendo.ui.filemanager namespace exposes the FileManagerCommand class that could be extended to implement a custom FileManager command. The example below demonstrates how to create a custom command that shows the total size of the selected files.

First, create a new command by extending the FileManagerCommand class.

        var filemanagerNS = kendo.ui.filemanager;

        filemanagerNS.commands.MyCustomCommand = filemanagerNS.FileManagerCommand.extend({
            exec: function () {
                var that = this,
                    filemanager = that.filemanager, // get the kendo.ui.FileManager instance
                    options = that.options, // get the options passed through the tool
                    target =, // is available only when command is executed from the context menu
                    selectedFiles = filemanager.getSelected(); // get the selected files

                var totalSize = 0;
                selectedFiles.forEach(function (fileEntry) {
                    totalSize += fileEntry.size;

                kendo.alert(selectedFiles.length + ' file(s) selected; Total size: ' + kendo.getFileSizeMessage(totalSize))

Then add the custom command to the FileManager Toolbar:

    .Toolbar(toolbar => toolbar.Items(items =>
            items.Add("").Type("button").Name("GetInfo").Text("Get Info").Command("MyCustomCommand");

You can also add the custom command to the ContextMenu of the FileManager

    .ContextMenu(context => context.Items(items =>
            items.Add("custom").Name("GetInfo").Text("Get Info").Command("MyCustomCommand").SpriteCssClass("k-icon k-i-info");

See Also

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