blazor-devexpress-dot-blazor-57fa5733.md
Contains data for the Showing event.
Namespace : DevExpress.Blazor
Assembly : DevExpress.Blazor.v25.2.dll
NuGet Package : DevExpress.Blazor
public class WindowShowingEventArgs :
CancelEventArgs
WindowShowingEventArgs is the data class for the following events:
The Showing event fires before the Window is displayed in one of the following ways:
true.Handle the Showing event to process show actions. You can set the event argument’s Cancel property to true to cancel a show action. You can also handle the Shown event that fires after the Window is displayed.
The following example displays the window only after users enable the checkbox:
<div>
<DxCheckBox @bind-Checked="@Checked">
Allow Window
</DxCheckBox>
@*...*@
<DxButton RenderStyle="ButtonRenderStyle.Secondary"
Click="OnShowAtPositionClick">SHOW A WINDOW</DxButton>
</div>
<DxWindow HeaderText="Header"
BodyText="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris sit amet metus vel
nisi blandit tincidunt vel efficitur purus. Nunc nec turpis tempus, accumsan orci auctor,
imperdiet mauris. Fusce id purus magna."
Width="max(25vw, 250px)"
@ref=WindowRef
Showing="WindowShowing"
Shown="WindowShown">
</DxWindow>
@code {
DxWindow WindowRef;
bool Checked { get; set; }
bool WindowVisible { get; set; }
void WindowShowing(WindowShowingEventArgs args) {
args.Cancel = !Checked;
}
void WindowShown(WindowShownEventArgs args) {
Checked = false;
}
async Task OnShowAtPositionClick(MouseEventArgs args) {
await WindowRef.ShowAtAsync(args.ClientX, args.ClientY);
}
}
Object EventArgs CancelEventArgs WindowShowingEventArgs
See Also