I am using InCell Grid editing. I want to prevent an edit cell from closing on certain condition. However, when I cancel the update with args.IsCancelled = true in OnUpdate, the user can still close the edited cell with Enter or Tab. This is inconsistent with inline or popup editing.
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A possible workaround is to cancel both OnUpdate and the subsequent OnEdit.
https://blazorrepl.telerik.com/QykMHkks10APuDLQ47
@using System.ComponentModel.DataAnnotations
<TelerikGrid Data="@GridData"
EditMode="@GridEditMode.Incell"
OnEdit="@OnGridEdit"
OnUpdate="@OnGridUpdate">
<GridColumns>
<GridColumn Field="@nameof(SampleModel.Name)" />
<GridColumn Field="@nameof(SampleModel.Min)" />
<GridColumn Field="@nameof(SampleModel.Max)" />
</GridColumns>
</TelerikGrid>
<TelerikNotification @ref="@NotificationRef"
HorizontalPosition="@NotificationHorizontalPosition.Center"
VerticalPosition="@NotificationVerticalPosition.Top" />
@code {
private TelerikNotification? NotificationRef { get; set; }
private List<SampleModel> GridData { get; set; } = new();
private bool ShouldCancelOnEdit { get; set; }
private int LastId { get; set; }
private void OnGridEdit(GridCommandEventArgs args)
{
if (ShouldCancelOnEdit)
{
ShouldCancelOnEdit = false;
args.IsCancelled = true;
}
}
private void OnGridUpdate(GridCommandEventArgs args)
{
var updatedItem = (SampleModel)args.Item;
if (updatedItem.Min > updatedItem.Max)
{
NotificationRef?.Show(new NotificationModel()
{
ThemeColor = ThemeConstants.Notification.ThemeColor.Error,
Text = "Min must be smaller than Max"
});
args.IsCancelled = true;
ShouldCancelOnEdit = true;
}
else
{
var originalItemIndex = GridData.FindIndex(i => i.Id == updatedItem.Id);
if (originalItemIndex != -1)
{
GridData[originalItemIndex] = updatedItem;
}
ShouldCancelOnEdit = false;
}
}
protected override void OnInitialized()
{
for (int i = 1; i <= 5; i++)
{
GridData.Add(new SampleModel()
{
Id = ++LastId,
Name = $"SampleModel {LastId}",
Min = Random.Shared.Next(1, 10),
Max = Random.Shared.Next(11, 20)
});
}
}
public class SampleModel
{
public int Id { get; set; }
[Required]
public string Name { get; set; } = string.Empty;
public int Min { get; set; }
public int Max { get; set; }
}
}