Added new kb article grid-popup-in-cell

knowledge-base/grid-popup-in-cell.md

@@ -0,0 +1,127 @@
+---
+title: How to Display a Popup in a Grid Cell
+description: Learn how to display a popup beside an icon embedded in a cell of the Grid for Blazor.
+type: how-to
+page_title: How to Display Popup Next to Icon in Grid for Blazor
+slug: grid-kb-popup-in-cell
+tags: blazor, grid, popup, template
+res_type: kb
+ticketid: 1689992, 1640846
+---
+
+## Environment
+
+<table>
+    <tbody>
+        <tr>
+            <td>Product</td>
+            <td>Grid for Blazor</td>
+        </tr>
+    </tbody>
+</table>
+
+## Description
+
+I want to display a popup beside an icon embedded within a cell in the [Grid for Blazor](slug:grid-overview). The popup should appear when the icon is clicked.
+
+## Solution
+
+To display a popup within a Grid cell:
+
+1. Add a button that triggers the popup for each row by using a `GridCommandColumn` or a column [`Template`](slug:grid-templates-column).
+
+2. Anchor the [`Popover`](slug:popover-overview) to the button via `AnchorSelector`.
+
+Here is an example implementation:
+
+````RAZOR
+<TelerikGrid Data="@GridData"
+             TItem="@SampleModel"
+             Pageable="true"
+             Sortable="true"
+             FilterMode="GridFilterMode.FilterRow">
+    <GridColumns>
+        <GridCommandColumn>
+            @{
+                var dataItem = (SampleModel)context;
+            }
+            <GridCommandButton Id="@( $"button{dataItem.Id}" )" Icon="@SvgIcon.DocumentManager"
+                               OnClick="@OnPopupShowButtonClick" />
+        </GridCommandColumn>
+        <GridColumn Field="@nameof(SampleModel.Price)" />
+        <GridColumn Field="@nameof(SampleModel.Quantity)" />
+    </GridColumns>
+</TelerikGrid>
+
+<TelerikPopover @ref="@PopoverRef"
+                AnchorSelector="@PopoverAnchorSelector"
+                Position="@PopoverPosition.Right"
+                Offset="20"
+                Width="240px"
+                Height="140px">
+    <PopoverHeader>
+        Popover for @ModelInPopup?.Name
+    </PopoverHeader>
+    <PopoverContent>
+        <div style="padding:2em;">
+            <TelerikButton OnClick="@( () => PopoverRef?.Hide() )">Hide</TelerikButton>
+        </div>
+    </PopoverContent>
+</TelerikPopover>
+
+@code {
+    private List<SampleModel> GridData { get; set; } = new();
+    private TelerikPopover? PopoverRef { get; set; }
+
+    private string PopoverAnchorSelector { get; set; } = "#button1";
+
+    private SampleModel? ModelInPopup { get; set; }
+
+    private async Task OnPopupShowButtonClick(GridCommandEventArgs args)
+    {
+        ModelInPopup = (SampleModel)args.Item;
+
+        PopoverRef?.Hide();
+        PopoverAnchorSelector = $"#button{ModelInPopup.Id}";
+        await Task.Delay(1);
+
+        PopoverRef?.Show();
+    }
+
+    protected override void OnInitialized()
+    {
+        var rnd = new Random();
+        for (int i = 1; i <= 7; i++)
+        {
+            GridData.Add(new SampleModel()
+            {
+                Id = i,
+                Name = $"Name {i}",
+                GroupName = $"Group {i % 3 + 1}",
+                Price = rnd.Next(1, 100) * 1.23m,
+                Quantity = rnd.Next(0, 1000),
+                StartDate = DateTime.Now.AddDays(-rnd.Next(60, 1000)),
+                IsActive = i % 4 > 0
+            });
+        }
+    }
+    public class SampleModel
+    {
+        public int Id { get; set; }
+        public int? ParentId { get; set; }
+        public string Name { get; set; } = string.Empty;
+        public string GroupName { get; set; } = string.Empty;
+        public decimal Price { get; set; }
+        public int Quantity { get; set; }
+        public object Icon { get; set; } = SvgIcon.File;
+        public DateTime StartDate { get; set; }
+        public DateTime EndDate { get; set; }
+        public bool IsActive { get; set; }
+    }
+}
+````
+
+## See Also
+
+* [Grid Overview Documentation](slug:grid-overview)
+* [Popover Overview Documentation](slug:popover-overview)