Spread Windows Forms 6.0 Product Documentation
ErrorExpression Constructor
See Also  Example Support Options
FarPoint.CalcEngine Assembly > FarPoint.CalcEngine Namespace > ErrorExpression Class : ErrorExpression Constructor


value
Error value

Glossary Item Box

Creates a new expression with an error constant value.

Syntax

Visual Basic (Declaration) 
Public Function New( _
   ByVal value As CalcError _
)
Visual Basic (Usage)Copy Code
Dim value As CalcError
 
Dim instance As New ErrorExpression(value)
C# 
public ErrorExpression( 
   CalcError value
)

Parameters

value
Error value

Exceptions

ExceptionDescription
System.ArgumentNullExceptionvalue is a null reference (Nothing in Visual Basic)

Example

This example returns the error.
C#Copy Code
FarPoint.CalcEngine.ErrorExpression expr = new FarPoint.CalcEngine.ErrorExpression(FarPoint.CalcEngine.CalcError.NotAvailable);
FarPoint.CalcEngine.Expression[] args = {expr};
FarPoint.CalcEngine.FunctionExpression func = new FarPoint.CalcEngine.FunctionExpression(FarPoint.CalcEngine.FunctionInfo.IsErrorFunction,
args);
//Spread for Windows Forms
((FarPoint.Win.Spread.Model.IExpressionSupport)(fpSpread1.ActiveSheet.Models.Data)).SetExpression(0, 0, func);
MessageBox.Show(FarPoint.CalcEngine.CalcError.Name.ToString());
//Spread for Web Forms
((FarPoint.Web.Spread.Model.IExpressionSupport)(FpSpread1.Sheets[0].DataModel)).SetExpression(0, 0, func);
TextBox1.Text = FarPoint.CalcEngine.CalcError.Name.ToString();
Visual BasicCopy Code
Dim expr As New FarPoint.CalcEngine.ErrorExpression(FarPoint.CalcEngine.CalcError.NotAvailable)
Dim args() As FarPoint.CalcEngine.Expression = {expr}
Dim func As New FarPoint.CalcEngine.FunctionExpression(FarPoint.CalcEngine.FunctionInfo.IsErrorFunction, args)
'Spread for Windows Forms
CType(FpSpread1.ActiveSheet.Models.Data, FarPoint.Win.Spread.Model.IExpressionSupport).SetExpression(0, 0, func)
MessageBox.Show(expr.ErrorValue.Name.ToString)
'Spread for Web Forms
CType(FpSpread1.Sheets(0).DataModel, FarPoint.Web.Spread.Model.IExpressionSupport).SetExpression(0, 0, func)
TextBox1.Text = expr.ErrorValue.Name.ToString()

Requirements

Target Platforms: 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

See Also

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