/// <summary>
/// Convert to the data operation exception.
/// </summary>
/// <param name="databaseUpdateException">The database update exception.</param>
/// <returns>Data operation exception.</returns>
public static DataOperationException ToDataOperationException(this System.Data.Entity.Infrastructure.DbUpdateException databaseUpdateException)
{
DataOperationException result;
Exception innerMostException = databaseUpdateException.InnerMostException();
var sqlException = innerMostException as SqlException; // if (innerMostException is SqlException) if (innerMostException.GetType().IsAssignableFrom(typeof(SqlException)))
if (sqlException != null)
{
result = sqlException.ToDataOperationException();
}
else
{
result = new DataOperationException("Unknown Data Error", databaseUpdateException);
}
return result;
}
/// <summary>
/// Convert to the data operation exception.
/// </summary>
/// <param name="ex">The ex.</param>
/// <returns>Data operation exception</returns>
public static DataOperationException ToDataOperationException(this SqlException ex)
{
DataOperationException dataException = null;
// Assume the interesting stuff is in the first error
if (ex.Errors.Count > 0)
{
switch (ex.Errors[0].Number)
{
case 547: // Foreign Key violation
dataException = new DataOperationException("This record is in use.");
break;
case 2601: // Primary key violation
dataException = new DataOperationException("Primary key violation.");
break;
default:
dataException = new DataOperationException("Unknown data exception.");
break;
}
}
return dataException;
}