Occurs when a cell reference is invalid.
            
            
            
Syntax
| Visual Basic (Declaration) |   | 
|---|
Public Shared ReadOnly Property Reference As CalcError  | 
 
            
            
            Property Value
CalcError object containing this type of error
 
            
			
			
            
            
            
Example
This example returns the error value.
             
| C# |  Copy Code | 
|---|
//Spread for Windows Forms
FarPoint.CalcEngine.ErrorExpression err = new FarPoint.CalcEngine.ErrorExpression(FarPoint.CalcEngine.CalcError.Reference);
fpSpread1.ActiveSheet.AddCustomName("Alpha", err);
fpSpread1.ActiveSheet.SetFormula(0, 0, "Alpha * 10");
FarPoint.CalcEngine.Expression expr = fpSpread1.ActiveSheet.GetCustomName("Alpha"); 
if (expr is FarPoint.CalcEngine.ErrorExpression) 
{ 
FarPoint.CalcEngine.ErrorExpression ex = ((FarPoint.CalcEngine.ErrorExpression)(expr)); 
MessageBox.Show("The error is " + ex.ErrorValue.ToString()); 
}
//Spread for Web Forms
FarPoint.CalcEngine.ErrorExpression err = new FarPoint.CalcEngine.ErrorExpression(FarPoint.CalcEngine.CalcError.Reference);
FarPoint.Web.Spread.Model.DefaultSheetDataModel dataModel = new FarPoint.Web.Spread.Model.DefaultSheetDataModel();  
dataModel = (FarPoint.Web.Spread.Model.DefaultSheetDataModel)FpSpread1.ActiveSheetView.DataModel;
dataModel.AddCustomName("Alpha", err);
FpSpread1.Sheets[0].SetFormula(0, 0, "Alpha * 10");
FarPoint.CalcEngine.Expression expr = dataModel.GetCustomName("Alpha"); 
if (expr is FarPoint.CalcEngine.ErrorExpression) 
{ 
FarPoint.CalcEngine.ErrorExpression ex = ((FarPoint.CalcEngine.ErrorExpression)(expr)); 
TextBox1.Text = "The error is " + ex.ErrorValue.ToString(); 
} | 
 
| Visual Basic |  Copy Code | 
|---|
'Spread for Windows Forms
Dim err As New FarPoint.CalcEngine.ErrorExpression(FarPoint.CalcEngine.CalcError.Reference)
FpSpread1.ActiveSheet.AddCustomName("Alpha", err)
FpSpread1.ActiveSheet.SetFormula(0, 0, "Alpha")
Dim expr As FarPoint.CalcEngine.Expression = FpSpread1.ActiveSheet.GetCustomName("Alpha")
If TypeOf expr Is FarPoint.CalcEngine.ErrorExpression Then
Dim ex As FarPoint.CalcEngine.ErrorExpression = CType(expr, FarPoint.CalcEngine.ErrorExpression)
MessageBox.Show("The error is " & ex.ErrorValue.ToString())
End If
'Spread for Web Forms
Dim err As New FarPoint.CalcEngine.ErrorExpression(FarPoint.CalcEngine.CalcError.Reference)
Dim dataModel As New FarPoint.Web.Spread.Model.DefaultSheetDataModel
dataModel = FpSpread1.ActiveSheetView.DataModel
dataModel.AddCustomName("Alpha", err)
FpSpread1.Sheets(0).SetFormula(0, 0, "Alpha")
Dim expr As FarPoint.CalcEngine.Expression = dataModel.GetCustomName("Alpha")
If TypeOf expr Is FarPoint.CalcEngine.ErrorExpression Then
Dim ex As FarPoint.CalcEngine.ErrorExpression = CType(expr, FarPoint.CalcEngine.ErrorExpression)
TextBox1.Text = "The error is " & ex.ErrorValue.ToString()
End If | 
 
 
            
            
Requirements
Target Platforms: Windows 2000 Professional (SP4), Windows 2000 Server, Windows 2003 Server (SP1), Windows 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8
 
            
            
See Also