Spread Windows Forms 12.0 Product Documentation
PreventFocusLeave Property
Example 


FarPoint.Win.Spread Assembly > FarPoint.Win.Spread Namespace > FocusProcess Class : PreventFocusLeave Property
Gets or sets whether to keep the focus on the validating Cell.
Syntax
'Declaration
 
Public Property PreventFocusLeave As Boolean
'Usage
 
Dim instance As FocusProcess
Dim value As Boolean
 
instance.PreventFocusLeave = value
 
value = instance.PreventFocusLeave
public bool PreventFocusLeave {get; set;}

Property Value

true to keep the focus on the validating Cell; otherwise, false. The default is true.
Example
This example keeps focus in the cell if the value is invalid.
//Typing a value outside the range prevents focus from leaving the cell
FarPoint.Win.Spread.FocusProcess cnotify = new FarPoint.Win.Spread.FocusProcess();
cnotify.PreventFocusLeave = true;
FarPoint.Win.Spread.TextLengthValidator tvalid = new FarPoint.Win.Spread.TextLengthValidator();
tvalid.LengthUnit = FarPoint.Win.Spread.LengthUnit.Char;
tvalid.MaximumLength = 6;
tvalid.MinimumLength = 0;
tvalid.Actions.Add(cnotify);
fpSpread1.Sheets[0].AddValidators(new FarPoint.Win.Spread.Model.CellRange(1, 1, 1, 1), tvalid);
'Typing a value outside the range prevents focus from leaving the cell
Dim cnotify As New FarPoint.Win.Spread.FocusProcess()
cnotify.PreventFocusLeave = True
Dim tvalid As New FarPoint.Win.Spread.TextLengthValidator()
tvalid.LengthUnit = FarPoint.Win.Spread.LengthUnit.Char
tvalid.MaximumLength = 6
tvalid.MinimumLength = 0
tvalid.Actions.Add(cnotify)
FpSpread1.Sheets(0).AddValidators(New FarPoint.Win.Spread.Model.CellRange(1, 1, 1, 1), tvalid)
See Also

Reference

FocusProcess Class
FocusProcess Members