Added new kb article grid-autofill-default-value-double-click

knowledge-base/grid-autofill-default-value-double-click.md

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+---
+title: Autofill a Default Value on Double-Click in Grid Edit Mode
+description: Learn how to autofill a default value in a Telerik Grid cell during inline editing when double-clicking the cell.
+type: how-to
+page_title: Automatically Fill Default Value on Double-Click in Grid Inline Editing
+meta_title: Automatically Fill Default Value on Double-Click in Grid Inline Editing
+slug: grid-kb-autofill-default-value-double-click
+tags: grid, gridcolumn, double-click, editing
+res_type: kb
+ticketid: 1700794
+---
+
+## Environment
+<table>
+    <tbody>
+        <tr>
+            <td>Product</td>
+            <td>Grid for Blazor</td>
+        </tr>
+    </tbody>
+</table>
+
+## Description
+
+I want to autofill a default value for a specific cell in the Grid when double-clicking on it. The cell is in edit mode.
+
+## Solution
+
+To autofill a default value in the cell on double-click during inline editing, use the [`EditorTemplate`](slug:grid-templates-editor) of the Grid column and handle the `ondblclick` event.
+
+````Razor
+<TelerikGrid Data="@Products"
+             EditMode="@GridEditMode.Inline"
+             OnUpdate="@OnGridUpdate">
+    <GridColumns>
+        <GridColumn Field="@nameof(Product.Name)" Width="200px">
+            <EditorTemplate>
+                @{
+                    var item = (Product)context;
+
+                    <div ondblclick="@(() => OnEditorDoubleClick(item))" style="border: 1px solid transparent; padding: 4px;">
+                        <TelerikTextBox @bind-Value="@item.Name" />
+                    </div>
+                }
+            </EditorTemplate>
+        </GridColumn>
+        <GridColumn Field="@nameof(Product.Description)" Width="200px" />
+        <GridCommandColumn Width="200px">
+            <GridCommandButton Command="Edit" Icon="@SvgIcon.Pencil">Edit</GridCommandButton>
+            <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 List<Product> Products { get; set; }
+
+    private async Task OnGridUpdate(GridCommandEventArgs args)
+    {
+        var item = (Product)args.Item;
+        var index = Products.FindIndex(x => x.Id == item.Id);
+
+        Products[index] = item;
+    }
+
+    private void OnEditorDoubleClick(Product product)
+    {
+        product.Name = $"{product.Name} (edited)";
+    }
+
+    protected override void OnInitialized()
+    {
+        Products = new List<Product>() {
+            new Product()
+            {
+                Name = "Product Name",
+                Description = "Description text",
+            }
+        };
+
+        base.OnInitialized();
+    }
+
+    public class Product
+    {
+        public int Id { get; set; }
+        public string Name { get; set; }
+        public string Description { get; set; }
+    }
+}
+````
+
+## See Also
+
+* [Grid Overview](slug:grid-overview)
+* [Grid Editor Template](slug:grid-templates-editor)