Added new kb article grid-kb-loader-during-contextmenu-actions

Author: KB Bot

knowledge-base/grid-kb-loader-during-contextmenu-actions.md

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+---
+title: Displaying Loader During Actions in TelerikGrid with ContextMenu
+description: Learn how to show a loading indicator while performing actions from a ContextMenu in a TelerikGrid for Blazor.
+type: how-to
+page_title: How to Display a Loader in TelerikGrid for Blazor During ContextMenu Actions
+slug: grid-kb-loader-during-contextmenu-actions
+tags: contextmenu,grid,loader,loading, loadercontainer,actions
+res_type: kb
+ticketid: 1675767
+---
+
+## Environment
+
+<table>
+    <tbody>
+        <tr>
+            <td>Product</td>
+            <td>Grid for Blazor</td>
+            <td>Context Menu for Blazor</td>
+        </tr>
+    </tbody>
+</table>
+
+## Description
+
+When using the TelerikGrid with ContextMenu for various row actions, there is a noticeable delay between selecting an action and its execution. This delay could be due to data retrieval or data manipulation. The goal is to display a loading notice to the user while the data loads and the result is not yet visible.
+
+This knowledge base article also answers the following questions:
+- How to use the TelerikLoaderContainer during data fetch operations in Blazor?
+- How to show a loading indicator while waiting for an action?
+- How to improve user experience during delayed operations in TelerikGrid with ContextMenu in Blazor?
+
+## Solution
+
+To display a spinner during delayed operations initiated from a ContextMenu in a TelerikGrid, utilize the [TelerikLoaderContainer](https://www.telerik.com/blazor-ui/documentation/components/loadercontainer/overview) component. Display the TelerikLoaderContainer while the data is being loaded or an action is being performed, and hide it once the operation is complete.
+
+````RAZOR
+@using System.Collections.Generic
+@using System.Collections.ObjectModel
+@using Telerik.Blazor.Components
+
+<TelerikContextMenu @ref="@ContextMenuRef" Data="@MenuItems"
+OnClick="@((MenuItem item) => ContextMenuClickHandler(item))">
+</TelerikContextMenu>
+
+<TelerikLoaderContainer Visible="@LoaderVisible" Text="Loading, please wait..."></TelerikLoaderContainer>
+
+<TelerikGrid Data="@GridData" @ref="@GridRef"
+EditMode="@GridEditMode.Inline"
+Height="500px"
+Pageable="true"
+OnCreate="@CreateItem" OnUpdate="@UpdateHandler"
+OnRowContextMenu="@OnContextMenu"
+SelectionMode="@GridSelectionMode.Multiple"
+@bind-SelectedItems="@SelectedItems">
+    <GridToolBarTemplate>
+        <GridCommandButton Command="Add" Icon="@SvgIcon.Plus">Add Employee</GridCommandButton>
+    </GridToolBarTemplate>
+    <GridColumns>
+        <GridColumn Field=@nameof(SampleData.ID) Editable="false" />
+        <GridColumn Field=@nameof(SampleData.Name) />
+        <GridCommandColumn>
+            <GridCommandButton Command="Save" Icon="@SvgIcon.Save" ShowInEdit="true">Save</GridCommandButton>
+            <GridCommandButton Command="Cancel" Icon="@SvgIcon.Cancel" ShowInEdit="true">Cancel</GridCommandButton>
+        </GridCommandColumn>
+    </GridColumns>
+</TelerikGrid>
+
+@code {
+    private ObservableCollection<SampleData> GridData { get; set; }
+    private List<MenuItem> MenuItems { get; set; }
+    private IEnumerable<SampleData> SelectedItems { get; set; } = Enumerable.Empty<SampleData>();
+    private SampleData SelectedPerson { get; set; }
+    private TelerikContextMenu<MenuItem> ContextMenuRef { get; set; }
+    private TelerikGrid<SampleData> GridRef { get; set; }
+    private bool LoaderVisible { get; set; }
+
+    private async Task ContextMenuClickHandler(MenuItem item)
+    {
+        LoaderVisible = true;
+        // Perform the action, such as data loading or another operation.
+        await Task.Delay(3000); // Simulate a delay for demonstration.
+        LoaderVisible = false;
+        // Proceed with action-specific logic after the delay.
+    }
+
+    // Additional component logic such as data initialization and CRUD operations.
+}
+````
+
+## See Also
+
+- [TelerikLoaderContainer Overview](https://www.telerik.com/blazor-ui/documentation/components/loadercontainer/overview)
+- [TelerikGrid Documentation](https://docs.telerik.com/blazor-ui/components/grid/overview)
+- [TelerikContextMenu Documentation](https://docs.telerik.com/blazor-ui/components/contextmenu/overview)