/// <summary>
/// Activates the data area on the specified cube on the Olap server. This method can be called only
/// once and deactivate must be called when done. If activate is called two times without calling deactivate
/// in between an exception is thrown.
/// </summary>
public void Activate()
{
if (!NativeOlapApi.DataAreaDefine(_cube.Server.Store.ClientSlot, _cube.Server.ServerHandle, _cube.Name, _elements, _parameters, _cube.Server.DataAreaActive, _cube.Server.LastErrorInternal))
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
sb.Append("The data area could not be activated!");
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);
}
_data = NativeOlapApi.DataAreaFirst(_cube.Server.Store.ClientSlot, _cube.Server.ServerHandle, _cube.Name, _parameters, _cube.Server.LastErrorInternal);
_currentDataSet = -1;
_isActivated = true;
}