TUserDefinedFunction.TryGetString Method
Tries to retrieve a string from a parameter, and return it if it can be converted or an error if not.
Syntax
Unit: FlexCel.Core
class function TUserDefinedFunction.TryGetString(const xls: TExcelFile; const param: TFormulaValue; out ResultValue: string; out ResultError: TFlxFormulaErrorValue): Boolean; static;
Parameters
| <-> |
Parameter |
Type |
Description |
| const |
xls |
TExcelFile |
ExcelFile used to read the parameter when it is a cell reference. |
| const |
param |
TFormulaValue |
One of the parameters passed to Evaluate |
| out |
ResultValue |
string |
Value of the parameter as string. If TryGetString returns false, this value is undefined. |
| out |
ResultError |
TFlxFormulaError​Value |
Value of the error when converting the parameter. If TryGetString returns true (there was no error), this value is undefined. |
Returns
True if the parameter can be converted to a string, false if there was an error.
See also