Spread Windows Forms 10.0 Product Documentation
IsValid Method (ImageCellType)
Example 


Value to validate (as object)
Determines whether the specified value is valid (Image).
Syntax
'Declaration
 
Public Overrides Function IsValid( _
   ByVal value As Object _
) As Boolean
'Usage
 
Dim instance As ImageCellType
Dim value As Object
Dim value As Boolean
 
value = instance.IsValid(value)
public override bool IsValid( 
   object value
)

Parameters

value
Value to validate (as object)

Return Value

true if value in entry is valid; false otherwise

Remarks
The valid range of values is defined by the minimum and maximum value properties.
Example
This example shows the use of the IsValid method for a date-time formatted numeric cell type, but it can be used for other cell types as well.
FarPoint.Win.Spread.CellType.DateTimeCellType dt = new FarPoint.Win.Spread.CellType.DateTimeCellType();
bool b;
dt.DateTimeFormat = FarPoint.Win.Spread.CellType.DateTimeFormat.ShortDate;
dt.MaximumDate = new System.DateTime(2010, 12, 31);
dt.MinimumDate = new System.DateTime(1990, 1, 1);
fpSpread1.ActiveSheet.Cells[0, 0].CellType = dt;
fpSpread1.ActiveSheet.Cells[0, 0].Value = new System.DateTime(2011, 9, 12);
fpSpread1.ActiveSheet.Cells[1, 0].CellType = dt;
fpSpread1.ActiveSheet.Cells[1, 0].Value = new System.DateTime(1989, 9, 12);
b = dt.IsValid(fpSpread1.ActiveSheet.Cells[0, 0].Value);
listBox1.Items.Add(b.ToString());
Dim dt As New FarPoint.Win.Spread.CellType.DateTimeCellType()
Dim b As Boolean
dt.DateTimeFormat = FarPoint.Win.Spread.CellType.DateTimeFormat.ShortDate
dt.MaximumDate = New System.DateTime(2010, 12, 31)
dt.MinimumDate = New System.DateTime(1990, 1, 1)
FpSpread1.ActiveSheet.Cells(0, 0).CellType = dt
FpSpread1.ActiveSheet.Cells(0, 0).Value = New System.DateTime(2011, 9, 12)
FpSpread1.ActiveSheet.Cells(1, 0).CellType = dt
FpSpread1.ActiveSheet.Cells(1, 0).Value = New System.DateTime(1989, 9, 12)
b = dt.IsValid(FpSpread1.ActiveSheet.Cells(0, 0).Value)
ListBox1.Items.Add(b.ToString())
Requirements

Target Platforms: Windows 2000 Professional (SP4), Windows 2000 Server, Windows 2003 Server (SP1), Windows Server 2012 R2, Windows 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10

See Also

Reference

ImageCellType Class
ImageCellType Members

 

 


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