/// <summary>
/// Calculate the hash value for the data area.
/// </summary>
/// <param name="key">A key to calculate the hash. The default value is an empty string.</param>
/// <param name="treatZeroAsNa">If true, the hash calculation will produce the same hash values for #NA and zero, or #NA and empty string for text cells.</param>
/// <returns>A unique hash value for the data area.</returns>
public string CalculateHash(string key, bool treatZeroAsNa)
{
MdsSetValueProlog();
string result = NativeOlapApi.DataAreaCalculateHash(_cube.Server.Store.ClientSlot, _cube.Server.ServerHandle, _parameters, key, _cube.Server.LastErrorInternal);
if (_cube.Server.LastErrorInternal.Value != 0)
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
sb.Append("The hash value could not be calculated!");
sb.Append(", Error: ");
sb.Append(System.Convert.ToString(_cube.Server.LastErrorInternal.Value));
sb.Append(", ");
sb.Append(ToString());
throw new OlapException(sb.ToString(), _cube.Server.LastErrorInternal.Value);
}
MdsSetValueEpilog();
_isActivated = false;
_cube.Server.DataAreaActive.Value = false;
return(result);
}