CallbackEventArgsBase Class

Provides data for events which concern callback processing.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v19.2.dll

Declaration

C#

public class CallbackEventArgsBase :
    EventArgs

VB.NET

Public Class CallbackEventArgsBase
    Inherits EventArgs

Related API Members

CallbackEventArgsBase is the data class for the following events:

Show 15 events

Library	Related API Members
ASP.NET Controls and MVC Extensions	ASPxAutoCompleteBoxBase.Callback
	ASPxBinaryImage.CustomCallback
	ASPxCallbackPanel.Callback
	ASPxDataViewBase.CustomCallback
	ASPxDockManager.Callback
	ASPxFileManager.CustomCallback
	ASPxGaugeControl.CustomCallback
	ASPxHiddenField.CustomCallback
	ASPxListBox.Callback
	ASPxPageControl.Callback
	ASPxRichEdit.Callback
	ASPxSchedulerDataWebControlBase.CustomCallback
	ASPxSpreadsheet.Callback
ASP.NET Bootstrap Controls	BootstrapCallbackPanel.Callback
	BootstrapPopupControl.Callback

Remarks

The CallbackEventArgsBase serves as a base for classes that are used as arguments for server Callback event of web controls.

CallbackEventArgsBase objects with proper settings are automatically created and passed to the corresponding event handlers.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the CallbackEventArgsBase class.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-change-an-appointments-custom-field-values-via-the-appointment-context-menu-like-fo-t164645/CS/WebApplication1/Default.aspx.cs#L102

protected void ASPxScheduler1_CustomCallback(object sender, DevExpress.Web.CallbackEventArgsBase e) {
    if (ASPxScheduler1.SelectedAppointments.Count > 0)

how-to-implement-the-copy-paste-appointment-operation-via-the-context-menu-t164287/CS/WebApplication1/Default.aspx.cs#L94

protected void ASPxScheduler1_CustomCallback(object sender, DevExpress.Web.CallbackEventArgsBase e) {
    if(e.Parameter == "PasteAppointment" && hdCopiedAppointmentID.Value != "") {

VB.NET

how-to-change-an-appointments-custom-field-values-via-the-appointment-context-menu-like-fo-t164645/VB/WebApplication1/Default.aspx.vb#L104

Protected Sub ASPxScheduler1_CustomCallback(ByVal sender As Object, ByVal e As DevExpress.Web.CallbackEventArgsBase)
    If ASPxScheduler1.SelectedAppointments.Count > 0 Then

how-to-implement-the-copy-paste-appointment-operation-via-the-context-menu-t164287/VB/WebApplication1/Default.aspx.vb#L97

Protected Sub ASPxScheduler1_CustomCallback(ByVal sender As Object, ByVal e As DevExpress.Web.CallbackEventArgsBase)
    If e.Parameter = "PasteAppointment" AndAlso hdCopiedAppointmentID.Value <> "" Then

Inheritance

Object

EventArgs

CallbackEventArgsBase

CallbackEventArgs

CustomDataCallbackEventArgs

PopupWindowCallbackArgs

RoundPanelContentCallbackEventArgs