BeforeActionButtonPressed Event (UltraCalculator)

/// Fires on before action occurs, allowing user to cancel default calculation and or change the values

Syntax

Visual Basic

'Declaration
 
Public Event BeforeActionButtonPressed As BeforeCalculateImmediateEventHandler

C#

public event BeforeCalculateImmediateEventHandler BeforeActionButtonPressed

Event Data

The event handler receives an argument of type OnCalculateImmediateEventArgs containing data related to this event. The following OnCalculateImmediateEventArgs properties provide information specific to this event.

Property	Description
Cancel (Inherited from System.ComponentModel.CancelEventArgs)
CurrentValue	Gets/Sets CurrentValue
CurrentValueDecimal	Get/Sets the current value as decimal.
Operation	Operation string, this value may be changed by the user and handled by the user.

Example

This event fires before a CalculatorButton with the Type designation of 'ActionButton' is pressed. 'This event provides the parameters of the calculation which are modifiable. The 'event itself is cancellable.

For an overview of how to handle events in Visual Basic or Visual C#, see Event Handlers in Visual Basic and Visual C#. For specific information and code examples illustrating how to consume events in your application, see Consuming Events in the .NET Framework Developer's Guide.

Visual Basic

Private Sub UltraCalculatorDropDown1_BeforeActionButtonPressed(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinEditors.UltraWinCalc.OnCalculateImmediateEventArgs) Handles UltraCalculatorDropDown1.BeforeActionButtonPressed
    
    ' This event fires before a CalculatorButton with the Type designation of 'ActionButton' is pressed.
    ' This event provides the parameters of the calculation which are modifiable. The 
    ' event itself is cancellable.
    Debug.WriteLine("BeforeActionButtonPressed: Cancel = " + e.Cancel.ToString())
    Debug.WriteLine(String.Format("Params: Operation {0}, Current Value {1}", e.Operation, e.CurrentValue))

End Sub

C#

using System.Diagnostics;

	private void ultraCalculatorDropDown1_BeforeActionButtonPressed(object sender, Infragistics.Win.UltraWinEditors.UltraWinCalc.OnCalculateImmediateEventArgs e)
	{
		
		// This event fires before a CalculatorButton with the Type designation of 'ActionButton' is pressed.
		// This event provides the parameters of the calculation which are modifiable. The 
		// event itself is cancellable.
		Debug.WriteLine("BeforeActionButtonPressed: Cancel = " + e.Cancel.ToString());
		Debug.WriteLine(string.Format("Params: Operation {0}, Current Value {1}",e.Operation, e.CurrentValue));

    }

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2