EPPlus/FormulaParsing/EpplusNameValueProvider.cs

namespace OfficeOpenXml.FormulaParsing;

public class EpplusNameValueProvider : INameValueProvider {
  private readonly ExcelDataProvider _excelDataProvider;
  private ExcelNamedRangeCollection _values;

  public EpplusNameValueProvider(ExcelDataProvider excelDataProvider) {
    _excelDataProvider = excelDataProvider;
    _values = _excelDataProvider.GetWorkbookNameValues();
  }

  public virtual bool IsNamedValue(string key, string ws) {
    if (ws != null) {
      var wsNames = _excelDataProvider.GetWorksheetNames(ws);
      if (wsNames != null && wsNames.ContainsKey(key)) {
        return true;
      }
    }
    return _values != null && _values.ContainsKey(key);
  }

  public virtual object GetNamedValue(string key) {
    return _values[key];
  }

  public virtual void Reload() {
    _values = _excelDataProvider.GetWorkbookNameValues();
  }
}