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Determines whether the specified value is valid.
protected override bool IsValid(int row, int column, object value)
Protected Overrides Function IsValid(row As Integer, column As Integer, value As Object) As Boolean
| Type | Name | Description | 
|---|---|---|
| int | row | The row of the cell to check.  | 
    
| int | column | The column of the cell to check.  | 
    
| object | value | The value.  | 
    
| Type | Description | 
|---|---|
| bool | 
  |