'Declaration Public Event FormulaReferenceError As FormulaCalculationErrorEventHandler
public event FormulaCalculationErrorEventHandler FormulaReferenceError
The event handler receives an argument of type Infragistics.Win.CalcEngine.FormulaCalculationErrorEventArgs containing data related to this event. The following FormulaCalculationErrorEventArgs properties provide information specific to this event.
Property | Description |
---|---|
Context (Inherited from Infragistics.Win.CalcEngine.FormulaErrorEventArgsBase) | |
ErrorDisplayIcon | |
ErrorDisplayText (Inherited from Infragistics.Win.CalcEngine.FormulaErrorEventArgsBase) | |
ErrorInfo | |
ErrorValue |
This event fires whenever the UltraCalcManager attemps to calculate a formula which refers to a reference that cannot be found in the calculation network.
Imports Infragistics.Shared Imports Infragistics.Win Imports Infragistics.Win.UltraWinGrid Imports Infragistics.Win.CalcEngine Imports Infragistics.Win.UltraWinCalcManager Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles button1.Click Me.UltraCalcManager1.NamedReferences.Clear() ' Here the formula references N2 which does not exist. This will cause the ' FormulaReferenceError to be raised. Me.ultraCalcManager1.NamedReferences.Add("N1", "2 * [N2]") End Sub Private Sub UltraCalcManager1_FormulaReferenceError(ByVal sender As Object, ByVal e As Infragistics.Win.CalcEngine.FormulaCalculationErrorEventArgs) Handles ultraCalcManager1.FormulaReferenceError ' Context is the object associated with the formula that has the circularity. ' It could an instance of NamedReference, CalcSettings or a grid object like ' UltraGridColumn or SummarySettings. If TypeOf e.Context Is NamedReference Then Dim nr As NamedReference = DirectCast(e.Context, NamedReference) MessageBox.Show(Me, nr.Formula & " formula has a reference error.") End If ' If the formula with the reference error was on a control on the form then ' this error icon will be displayed with the control. Note that this does not ' apply to UltraGrid column and summary formulas. 'e.ErrorDisplayIcon = new Icon( "erroricon.ico" ); ' You can set the text of the tool tip that will displayed when the user hovers ' the mouse over the error icon beside the control associated with the formula. e.ErrorDisplayText = "Formula refers to something non existant." End Sub
using Infragistics.Shared; using Infragistics.Win; using Infragistics.Win.UltraWinGrid; using System.Diagnostics; using Infragistics.Win.CalcEngine; using Infragistics.Win.UltraWinCalcManager; private void button1_Click(object sender, System.EventArgs e) { this.ultraCalcManager1.NamedReferences.Clear( ); // Here the formula references N2 which does not exist. This will cause the // FormulaReferenceError to be raised. this.ultraCalcManager1.NamedReferences.Add( "N1", "2 * [N2]" ); } private void ultraCalcManager1_FormulaReferenceError(object sender, Infragistics.Win.CalcEngine.FormulaCalculationErrorEventArgs e) { // Context is the object associated with the formula that has the circularity. // It could an instance of NamedReference, CalcSettings or a grid object like // UltraGridColumn or SummarySettings. if ( e.Context is NamedReference ) { NamedReference nr = (NamedReference)e.Context; MessageBox.Show( this, nr.Formula + " formula has a reference error." ); } // If the formula with the reference error was on a control on the form then // this error icon will be displayed with the control. Note that this does not // apply to UltraGrid column and summary formulas. //e.ErrorDisplayIcon = new Icon( "erroricon.ico" ); // You can set the text of the tool tip that will displayed when the user hovers // the mouse over the error icon beside the control associated with the formula. e.ErrorDisplayText = "Formula refers to something non existant."; }
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