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  [Expand]DevExpress.Web.Bootstrap
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   [Expand]BootstrapClientAccordion Class
   [Expand]BootstrapClientAccordionGroup Class
   [Expand]BootstrapClientAccordionGroupCancelEventArgs Class
    BootstrapClientAccordionGroupCancelEventHandler Delegate
   [Expand]BootstrapClientAccordionGroupClickEventArgs Class
    BootstrapClientAccordionGroupClickEventHandler Delegate
   [Expand]BootstrapClientAccordionGroupEventArgs Class
    BootstrapClientAccordionGroupEventHandler Delegate
   [Expand]BootstrapClientAccordionItem Class
   [Expand]BootstrapClientAccordionItemEventArgs Class
    BootstrapClientAccordionItemEventHandler Delegate
   [Expand]BootstrapClientBinaryImage Class
   [Expand]BootstrapClientButton Class
   [Expand]BootstrapClientButtonEdit Class
   [Expand]BootstrapClientCalendar Class
   [Collapse]BootstrapClientCallbackPanel Class
     BootstrapClientCallbackPanel Members
     BootstrapClientCallbackPanel Constructor
    [Expand]BootstrapClientCallbackPanel Events
    [Collapse]BootstrapClientCallbackPanel Methods
      GetContentHtml Method
      GetEnabled Method
     [Collapse]PerformCallback Method
       PerformCallback(String) Method
       PerformCallback(String, Action<String>) Method
      SetContentHtml Method
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   [Expand]BootstrapClientCardView Class
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   [Expand]BootstrapClientChartBase Class
    BootstrapClientChartBaseDoneEventHandler Delegate
    BootstrapClientChartBaseLegendClickEventHandler Delegate
    BootstrapClientChartBasePointClickEventHandler Delegate
    BootstrapClientChartBasePointHoverChangedEventHandler Delegate
    BootstrapClientChartBasePointSelectionChangedEventHandler Delegate
    BootstrapClientChartBaseTooltipHiddenEventHandler Delegate
    BootstrapClientChartBaseTooltipShownEventHandler Delegate
   [Expand]BootstrapClientChartZoomEndEventArgs Class
    BootstrapClientChartZoomEndEventHandler Delegate
    BootstrapClientChartZoomStartEventHandler Delegate
   [Expand]BootstrapClientCheckBox Class
   [Expand]BootstrapClientCheckBoxList Class
   [Expand]BootstrapClientComboBox Class
    BootstrapClientCoordinateSystemChartArgumentAxisClickEventHandler Delegate
    BootstrapClientCoordinateSystemChartSeriesClickEventHandler Delegate
    BootstrapClientCoordinateSystemChartSeriesHoverChangedEventHandler Delegate
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   [Expand]BootstrapClientDateEdit Class
   [Expand]BootstrapClientDropDownEdit Class
   [Expand]BootstrapClientFormLayout Class
   [Expand]BootstrapClientGridView Class
   [Expand]BootstrapClientHyperLink Class
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    BootstrapClientMenuItemClickEventHandler Delegate
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   [Expand]BootstrapClientPageControl Class
   [Expand]BootstrapClientPager Class
   [Expand]BootstrapClientPieChart Class
   [Expand]BootstrapClientPolarChart Class
   [Expand]BootstrapClientPopupControl Class
   [Expand]BootstrapClientPopupMenu Class
   [Expand]BootstrapClientProgressBar Class
   [Expand]BootstrapClientRadioButton Class
   [Expand]BootstrapClientRadioButtonList Class
   [Expand]BootstrapClientRangeSelector Class
   [Expand]BootstrapClientRangeSelectorValueChangedEventArgs Class
    BootstrapClientRangeSelectorValueChangedEventHandler Delegate
   [Expand]BootstrapClientSparkline Class
    BootstrapClientSparklineOptionChangedEventHandler Delegate
    BootstrapClientSparklineTooltipHiddenEventHandler Delegate
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   [Expand]BootstrapClientSpinEdit Class
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   [Expand]BootstrapClientTabControl Class
   [Expand]BootstrapClientTabControlTabCancelEventArgs Class
    BootstrapClientTabControlTabCancelEventHandler Delegate
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    BootstrapClientTabControlTabClickEventHandler Delegate
   [Expand]BootstrapClientTabControlTabEventArgs Class
    BootstrapClientTabControlTabEventHandler Delegate
   [Expand]BootstrapClientTagBox Class
   [Expand]BootstrapClientTextBox Class
   [Expand]BootstrapClientTimeEdit Class
   [Expand]BootstrapClientToolbar Class
   [Expand]BootstrapClientTreeView Class
   [Expand]BootstrapClientTreeViewNode Class
   [Expand]BootstrapClientTreeViewNodeCancelEventArgs Class
    BootstrapClientTreeViewNodeCancelEventHandler Delegate
   [Expand]BootstrapClientTreeViewNodeClickEventArgs Class
    BootstrapClientTreeViewNodeClickEventHandler Delegate
   [Expand]BootstrapClientTreeViewNodeEventArgs Class
    BootstrapClientTreeViewNodeEventHandler Delegate
   [Expand]BootstrapClientTreeViewNodeProcessingModeEventArgs Class
    BootstrapClientTreeViewNodeProcessingModeEventHandler Delegate
   [Expand]BootstrapClientUploadControl Class
   [Expand]BootstrapClientUtils Class
   [Expand]BootstrapUIWidgetBase Class
    BootstrapUIWidgetDisposingEventHandler Delegate
    BootstrapUIWidgetDrawnEventHandler Delegate
   [Expand]BootstrapUIWidgetElementActionEventArgs Class
   [Expand]BootstrapUIWidgetElementClickEventArgs Class
   [Expand]BootstrapUIWidgetErrorEventArgs Class
    BootstrapUIWidgetErrorEventHandler Delegate
   [Expand]BootstrapUIWidgetEventArgsBase Class
    BootstrapUIWidgetExportedEventHandler Delegate
   [Expand]BootstrapUIWidgetExportEventArgs Class
    BootstrapUIWidgetExportingEventHandler Delegate
    BootstrapUIWidgetFileSavingEventHandler Delegate
    BootstrapUIWidgetInitializedEventHandler Delegate
   [Expand]BootstrapUIWidgetOptionChangedEventArgs Class
    BootstrapUIWidgetOptionChangedEventHandler Delegate
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 End-User Documentation

BootstrapClientCallbackPanel.PerformCallback(String, Action<String>) Method

Sends a callback to the server and generates the server-side BootstrapCallbackPanel.Callback event, passing it the specified argument.

Namespace:DevExpress.Web.Bootstrap.Scripts
Assembly:DevExpress.Web.Bootstrap.v18.1.Scripts.dll

Expanded Syntax

Parameters

parameter
Type: String
A string value that represents any information that needs to be sent to the server-side BootstrapCallbackPanel.Callback event.
onSuccess
Type: Action<String>
A client action to perform if the server round-trip completed successfully.

Expanded Remarks

Use the PerformCallback method if you need to asynchronously go to the server and perform some server-side processing using AJAX-based callback technology. You can pass the required information which can be collected on the client side as a string of arguments (for instance, in the "Name = Value;" form) via the PerformCallback method's parameter parameter. The onSuccess parameter allows you to specify a client function that should be executed after the server round-trip completed successfully.

The PerformCallback method posts back to the server using the callback technology, and generates a server-side BootstrapCallbackPanel.Callback event. The method's parameter argument is passed to the BootstrapCallbackPanel.Callback event's handler as the DevExpress.Web.CallbackEventArgsBase.Parameter property. So, the necessary server-side actions can be performed in the event's handler, based upon the values of the arguments which can be obtained by parsing the passed information string.

Note that the necessary actions can be additionally performed on the client side before and after callback processing by using the BeginCallback and EndCallback client event.

Expanded Example

This example demonstrates the basic functionality of the Callback Panel.

The image below shows the result:

Expanded See Also

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