FormulaSyntaxError イベント

数式に誤字があるか、演算子の使用方法が誤っていることが原因で数式の解析が失敗したときに発生します。

シンタックス

Visual Basic

public event FormulaSyntaxErrorEventHandler FormulaSyntaxError

C#

'宣言
 
Public Event FormulaSyntaxError As FormulaSyntaxErrorEventHandler

 

イベント データ

イベント ハンドラが、このイベントに関連するデータを含む、FormulaSyntaxErrorEventArgs 型の引数を受け取りました。次の FormulaSyntaxErrorEventArgs プロパティには、このイベントの固有の情報が記載されます。

プロパティ	解説
Context Infragistics.Win.CalcEngine.FormulaErrorEventArgsBaseから継承されます。
DisplayErrorMessage	エラーメッセージをエンドユーザーに表示するかどうかを取得または設定します。
ErrorDisplayText Infragistics.Win.CalcEngine.FormulaErrorEventArgsBaseから継承されます。

解説

このイベントは、UltraCalcManager が構文が無効な数式を計算しようと試みるたびに発生します。

使用例

Visual Basic

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()
        ' Deliberately add a formula that contains a syntax error.
        Me.ultraCalcManager1.NamedReferences.Add("N1", "2 ** 4")
    End Sub

    Private Sub UltraCalcManager1_FormulaSyntaxError(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinCalcManager.FormulaSyntaxErrorEventArgs) Handles ultraCalcManager1.FormulaSyntaxError
        ' You can prevent the default behavior of displaying the message box by
        ' setting the DisplayErrorMessage to false.
        e.DisplayErrorMessage = False

        ' 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 syntax error. Here is the original error message:" & vbCrLf & e.ErrorDisplayText)
        End If
    End Sub

'宣言
 
Public Event FormulaSyntaxError As FormulaSyntaxErrorEventHandler

 

C#

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( );
			// Deliberately add a formula that contains a syntax error.
			this.ultraCalcManager1.NamedReferences.Add( "N1", "2 ** 4" );
		}

		private void ultraCalcManager1_FormulaSyntaxError(object sender, Infragistics.Win.UltraWinCalcManager.FormulaSyntaxErrorEventArgs e)
		{
			// You can prevent the default behavior of displaying the message box by
			// setting the DisplayErrorMessage to false.
			e.DisplayErrorMessage = false;

			// 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 syntax error. Here is the original error message:\r\n" + e.ErrorDisplayText );
			}
		}

'宣言
 
Public Event FormulaSyntaxError As FormulaSyntaxErrorEventHandler