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Using a Surrogate Character Validator

You can create a validator that checks if surrogate characters have been entered in the cell

A validation error occurs if the value is not valid. You can also create an action, such as adding a backcolor to the cell, that lets the user know the value is invalid.

Use the SurrogateCharValidator class to create the validator. Specify a notification type such as CellStyleNotify. Then use the AddValidators method to add the validator to a cell range.

Using Code

The following example uses the surrogate character validator.

FarPoint.Win.Spread.CellStyleNotify cnotify = new FarPoint.Win.Spread.CellStyleNotify();
                cnotify.InvalidCellStyle.BackColor = Color.Aqua;
                FarPoint.Win.Spread.SurrogateCharValidator surchar = new FarPoint.Win.Spread.SurrogateCharValidator();
                surchar.Actions.Add(cnotify);
                fpSpread1.Sheets[0].AddValidators(new FarPoint.Win.Spread.Model.CellRange(1, 1, 1, 1), surchar);
                fpSpread1.Sheets[0].Cells[1, 1].Value = "In the game of mahjong \U0001F01C denotes the Four of circles";
Dim cnotify As New FarPoint.Win.Spread.CellStyleNotify()
                cnotify.InvalidCellStyle.BackColor = Color.Aqua
                Dim surchar As New FarPoint.Win.Spread.SurrogateCharValidator()
                surchar.Actions.Add(cnotify)
                fpSpread1.Sheets(0).AddValidators(New FarPoint.Win.Spread.Model.CellRange(1, 1, 1, 1), surchar)
                fpSpread1.Sheets(0).Cells(1, 1).Text = "In the game of mahjong" + Char.ConvertFromUtf32(&H1F01C) + "denotes the Four Of circles"

See Also

Using a Cell Comparison Validator

Using a Character Format Validator

Using a String Comparison Validator

Using a Value Comparison Validator

Using an Encoding Validator

Using the Exclude List Validator

Using the Include List Validator

Using a Pair Validator

Using the Range Validator

Using a Regular Expression Validator

Using a Required Field Validator

Using a Required Type Validator

Using a Text Length Validator