Class BeforeOpenEventArgs

Event argument for the BeforeOpen event, triggered just prior to rendering a popup/dropdown in Syncfusion dropdown controls.

Inheritance

System.Object

BeforeOpenEventArgs

MentionOpeningEventArgs

ComboBoxPopupOpenEventArgs

Namespace: Syncfusion.Blazor.DropDowns

Assembly: Syncfusion.Blazor.dll

Syntax

public class BeforeOpenEventArgs : Object

Remarks

BeforeOpenEventArgs lets the handler cancel, alter, or style a popup before it shows. Setting Cancel prevents opening.

Examples

void OnBeforeOpen(BeforeOpenEventArgs args)
{
    if (!UserHasPermission) args.Cancel = true;
}

Constructors

BeforeOpenEventArgs()

Declaration

public BeforeOpenEventArgs()

Properties

Cancel

Gets/sets whether to cancel the display of the popup/dropdown (true prevents opening).

Declaration

public bool Cancel { get; set; }

Property Value

Type	Description
System.Boolean	true cancels the popup open; false allows rendering.