Prevent Grid Popup Editor from Closing on Update and Create

Environment

Product	Progress Telerik UI for ASP.NET Core Grid
Progress Telerik UI for ASP.NET Core version	Created with the 2023.2.829 version

Description

How can I keep the popup editor of the Telerik UI for ASP.NET Core Grid open after I update or insert a record?

Solution

To achieve the desired scenario:

1. Handle the Edit event of the Grid and attach an event handler for the close event of the Popup window.
2. In the close handler, the e.preventDefault() method will be called to prevent the popup from closing.
3. To allow the user to close the editor, set a preventCloseOnSave flag when the Cancel and Close buttons are clicked.
4. Contrary to the previous step, subscribe to the Save event of the Grid and reset the flag.

Index.cshtml

@(Html.Kendo().Grid<Kendo.Mvc.Examples.Models.ProductViewModelGridPopUp>()
    .Name("grid")
    .Columns(columns =>
    {
        columns.Bound(p => p.ProductName);
        columns.Bound(p => p.UnitPrice).Width(100);
        columns.Bound(p => p.UnitsInStock).Width(100);
        columns.Bound(p => p.Discontinued).Width(100);
        columns.Command(command => { command.Edit(); command.Destroy(); }).Width(200);
    })
    .ToolBar(toolbar => toolbar.Create())
    .Editable(editable => editable.Mode(GridEditMode.PopUp))
    .Pageable()
    .Sortable()
    .Scrollable()
    .Events(ev => {
        ev.Edit("onEdit");
        ev.Save("onSave");
    })
    .HtmlAttributes(new { style = "height:430px;" })
    .DataSource(dataSource => dataSource
        .Ajax()
        .PageSize(20)
        .Model(model => model.Id(p => p.ProductID))
        .Create(update => update.Action("EditingPopup_Create", "Grid"))
        .Read(read => read.Action("EditingPopup_Read", "Grid"))
        .Update(update => update.Action("EditingPopup_Update", "Grid"))
        .Destroy(update => update.Action("EditingPopup_Destroy", "Grid"))
    )
)

Script.js

    <script type="text/javascript">
        var preventCloseOnSave = false;

        function onSave(e) {
            preventCloseOnSave = true;
        }
        var onWindowEditClose = function (e) {
            if (preventCloseOnSave) {
                e.preventDefault();
                preventCloseOnSave = false;
            }
        };

        function onEdit(e) {
             var editWindow = e.container.data("kendoWindow");
             editWindow.unbind("close");
             editWindow.bind("close", onWindowEditClose);

            $(".k-grid-cancel").on("mousedown", function (e) {

                preventCloseOnSave = false;
                editWindow.close();
            });
        }
    </script>

More ASP.NET Core Grid Resources

• ASP.NET Core Grid Documentation

• ASP.NET Core Grid Demos

• ASP.NET Core DataGrid Product Page

• Telerik UI for ASP.NET Core Video Onboarding Course (Free for trial users and license holders)

• Telerik UI for ASP.NET Core Forums

See Also

• Client-Side API Reference of the Grid for ASP.NET Core
• Server-Side API Reference of the Grid for ASP.NET Core
• Server-Side TagHelper API Reference of the Grid for ASP.NET Core
• Telerik REPL: Prevent Grid Popup Editor from Closing on Update and Create
• Telerik UI for ASP.NET Core Breaking Changes
• Telerik UI for ASP.NET Core Knowledge Base