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Column Property
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FarPoint.CalcEngine Assembly > FarPoint.CalcEngine Namespace > CalcReference Class : Column Property


Glossary Item Box

Gets the index of the first column in the cell or range reference.

Syntax

Visual Basic (Declaration) 
Public MustOverride ReadOnly Property Column As Integer
Visual Basic (Usage)Copy Code
Dim instance As CalcReference
Dim value As Integer
 
value = instance.Column
C# 
public abstract int Column {get;}

Property Value

Integer index of the first column in the cell or range reference

Example

This example creates a custom function.
C#Copy Code
public class Cube : FarPoint.CalcEngine.FunctionInfo 
    { 

        public override string Name 
        { 
            get 
            { 
                return "Cube"; 
            } 
        } 

        public override int MaxArgs 
        { 
            get 
            { 
                return 1; 
            } 
        } 

        public override int MinArgs 
        { 
            get 
            { 
                return 1; 
            } 
        } 

        public override bool AcceptsReference(int i) 
        { 
            if (i == 0) 
            { 
                return true; 
            } 
            else 
            { 
                return false; 
            } 
        } 

        public override object Evaluate(object[] args) 
    { 
        double total; 
        FarPoint.CalcEngine.CalcReference cellref; 
        object value; 
        if (args[0] is FarPoint.CalcEngine.CalcArray) 
    { 
        return FarPoint.CalcEngine.CalcError.Value; 
    } 
    if (args[0] is FarPoint.CalcEngine.CalcReference) 
{ 
    cellref = ((FarPoint.CalcEngine.CalcReference)(args[0])); 
    if (cellref.ColumnCount > 1 | cellref.RowCount > 1) 
{ 
    return FarPoint.CalcEngine.CalcError.Value; 
} 
    value = cellref.GetValue(cellref.Row, cellref.Column); 
    try 
{ 
    total = Math.Pow(FarPoint.CalcEngine.CalcConvert.ToDouble(args[0]), 3); 
} 
    catch 
{ 
} 
} 
    else 
{ 
    try 
{ 
    total = Math.Pow(FarPoint.CalcEngine.CalcConvert.ToDouble(args[0]), 3); 
} 
    catch 
{ 
} 
} 
    return total; 
} 
}
Visual BasicCopy Code
Public Class Cube 
Inherits FarPoint.CalcEngine.FunctionInfo 

Public Overrides ReadOnly Property Name() As String 
Get 
Return "Cube" 
End Get 
End Property 

Public Overrides ReadOnly Property MaxArgs() As Integer 
Get 
Return 1 
End Get 
End Property 

Public Overrides ReadOnly Property MinArgs() As Integer 
Get 
Return 1 
End Get 
End Property 

Public Overrides Function AcceptsReference(ByVal i As Integer) As Boolean 
If i = 0 Then 
Return True 
Else 
Return False 
End If 
End Function 

Public Overrides Function Evaluate(ByVal args() As Object) As Object 
Dim total As Double 
Dim cellref As FarPoint.CalcEngine.CalcReference 
Dim value As Object 
If TypeOf args(0) Is FarPoint.CalcEngine.CalcArray Then Return FarPoint.CalcEngine.CalcError.Value 
If TypeOf args(0) Is FarPoint.CalcEngine.CalcReference Then 
cellref = CType(args(0), FarPoint.CalcEngine.CalcReference) 
If cellref.ColumnCount > 1 Or cellref.RowCount > 1 Then Return FarPoint.CalcEngine.CalcError.Value 
value = cellref.GetValue(cellref.Row, cellref.Column) 
Try 
total = FarPoint.CalcEngine.CalcConvert.ToDouble(value) ^ 3 
Catch 
End Try 
Else 
Try 
total = FarPoint.CalcEngine.CalcConvert.ToDouble(args(0)) ^ 3 
Catch 
End Try 
End If 
Return total 
End Function 
End Class 

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

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