Class SelectAllEventArgs<T>

Event data for select-all and deselect-all actions in ListBox and MultiSelect, tracking state, triggering context, and user interaction.

Inheritance
System.Object
SelectAllEventArgs<T>
SelectingAllEventArgs<T>
Namespace: Syncfusion.Blazor.DropDowns
Assembly: Syncfusion.Blazor.dll
Syntax
public class SelectAllEventArgs<T> : Object
Type Parameters
Name Description
T

Type of the items being selected/deselected (e.g., string).
Remarks

SelectAllEventArgs records whether select-all was user-driven, the affected values, and the full selection state. Use it to audit or block select-all flows.

Examples
void OnSelectAll(SelectAllEventArgs<MyType> args) {
    if (args.IsChecked) {
        Console.WriteLine($"All values selected: {string.Join(",", args.ItemData ?? new List<MyType>())}");
    }
}

Constructors

SelectAllEventArgs()

Declaration
public SelectAllEventArgs()

Properties

Event

[Obsolete] Browser event for old select-all API; not supported now.

Declaration
public object Event { get; set; }
Property Value
Type
System.Object

IsChecked

Gets whether select-all has checked or unchecked items.

Declaration
public bool IsChecked { get; }
Property Value
Type Description
System.Boolean

true for select-all activation; false for deselect-all.

IsInteracted

Gets a value indicating whether select-all was triggered by direct user interaction.

Declaration
public bool IsInteracted { get; }
Property Value
Type Description
System.Boolean

true if changed by the user; false if programmatic.

ItemData

Enumerable of the selected item data objects after the select-all action is performed.

Declaration
public IEnumerable<T> ItemData { get; }
Property Value
Type
System.Collections.Generic.IEnumerable<T>

Items

(Obsolete) Old-style selected element list for compatibility only.

Declaration
public List<DOM> Items { get; set; }
Property Value
Type
System.Collections.Generic.List<DOM>