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How to add custom button in toolbar

The toolbar items can be customized using the toolbarSettings API and toolbarClick event.

The following example shows adding a custom item in the toolbar.

The new toolbar button is added using toolbarSettings. The toolbarClick event is used to add an event handler to the new toolbar button.

    string[] items = new string[] { "NewFolder", "Upload", "Delete", "Download", "Rename", "SortBy", "Refresh", "Selection", "View", "Details", "Custom" };
<div class="control-section">
    <div class="sample-container">
        <!--  Filemanager element declaration -->
        @Html.EJS().FileManager("file").AjaxSettings(new Syncfusion.EJ2.FileManager.FileManagerAjaxSettings()
            Url = "/Home/FileOperations",
            GetImageUrl = "/Home/GetImage",
            UploadUrl = "/Home/Upload",
            DownloadUrl = "/Home/Download"
        }).ToolbarSettings(new Syncfusion.EJ2.FileManager.FileManagerToolbarSettings()
            Items = items
        <!-- end of filemanager element -->
    // event for custom toolbar item
    function toolbarClick(args) {
        if (args.item.text === 'Custom') {
            alert('You have clicked custom toolbar item')
    function onCreate(args) {
        for (var i = 0; i < args.items.length; i++) {
            if (args.items[i].id === + '_tb_custom') {
                args.items[i].prefixIcon = 'e-icons e-fe-tick';
    .e-fe-tick::before {
        content: '\e614';

Output be like the below.

FileManager getting started