DataGridView.SwipeItemShowing Event

Fires when a swipe item is about to be shown when a user swipes a row from left to right or from right to left, and allows you to cancel the action.

Namespace: DevExpress.Maui.DataGrid

Assembly: DevExpress.Maui.DataGrid.dll

NuGet Package: DevExpress.Maui.DataGrid

Declaration

public event EventHandler<SwipeItemShowingEventArgs> SwipeItemShowing

Event Data

The SwipeItemShowing event's data class is SwipeItemShowingEventArgs. The following properties provide information specific to this event:

Property	Description
Cancel	Gets or sets a value indicating whether the event should be canceled. Inherited from CancelEventArgs.
IsStartSwipeItem	Gets whether the processed swipe item is about to be displayed on the left side of a grid row.
Item	Gets the data item that corresponds to the processed grid row.
RowHandle	Gets the handle of the row that contains the item that is about to be swiped.
SwipeItem	Returns the swipe item for which the SwipeItemShowing event is raised.

Remarks

For more information about swipe items, refer to the following help topic: Swipe Actions in .NET MAUI Data Grid.

Example

In the markup below, the right-side swipe item is Reply. The code below shows how to prevent this item from showing if the sender’s email contains “donotreply”.

XAML

<dxg:DataGridView x:Name="grid" ItemsSource="{Binding OutlookData}" SwipeItemShowing="grid_SwipeItemShowing">
    <dxg:DataGridView.StartSwipeItems>
        <dxg:SwipeItem Caption="Sender Info" BackgroundColor="#26a95e" Tap="OnShowCustomerInfo" />
    </dxg:DataGridView.StartSwipeItems>
    <dxg:DataGridView.EndSwipeItems>
        <dxg:SwipeItem Caption="Reply" BackgroundColor="#797bff" Tap="OnReply" />
    </dxg:DataGridView.EndSwipeItems>
    <dxg:DataGridView.Columns>
        <dxg:TextColumn FieldName="From.Email" Caption="From" Width="150">
            <dxg:TextColumn.Width>
                <OnIdiom x:TypeArguments="GridLength" Phone="110" Tablet="150"/>
            </dxg:TextColumn.Width>
        </dxg:TextColumn>
        <dxg:TextColumn FieldName="Subject" />
        <dxg:DateColumn FieldName="Sent" Width="150">
            <dxg:DateColumn.IsVisible>
                <OnIdiom x:TypeArguments="x:Boolean" Phone="false" Tablet="true"/>
            </dxg:DateColumn.IsVisible>
        </dxg:DateColumn>
    </dxg:DataGridView.Columns>
</dxg:DataGridView>

C#

using DevExpress.Maui.DataGrid;

private void grid_SwipeItemShowing(object sender, SwipeItemEventArgs e) {
    DataGridView dataGridView = sender as DataGridView;
    string from = (string)dataGridView.GetCellValue(e.RowHandle, "From.Email");
    if (from.Contains("donotreply") && !e.IsStartSwipeItem)
        e.Cancel = true;
}