private void Child_Update(Order order, SqlConnection connection)
{
bool cancel = false;
OnChildUpdating(order, connection, ref cancel);
if (cancel) return;
if(connection.State != ConnectionState.Open) connection.Open();
const string commandText = "UPDATE [dbo].[LineItem] SET [OrderId] = @p_OrderId, [LineNum] = @p_LineNum, [ItemId] = @p_ItemId, [Quantity] = @p_Quantity, [UnitPrice] = @p_UnitPrice WHERE [OrderId] = @p_OriginalOrderId AND [LineNum] = @p_OriginalLineNum; SELECT [OrderId], [LineNum] FROM [dbo].[LineItem] WHERE [OrderId] = @p_OriginalOrderId AND [LineNum] = @p_OriginalLineNum";
using(var command = new SqlCommand(commandText, connection))
{
command.Parameters.AddWithValue("@p_OriginalOrderId", order != null ? order.OrderId : this.OriginalOrderId);
command.Parameters.AddWithValue("@p_OrderId", order != null ? order.OrderId : this.OrderId);
command.Parameters.AddWithValue("@p_OriginalLineNum", this.OriginalLineNum);
command.Parameters.AddWithValue("@p_LineNum", this.LineNum);
command.Parameters.AddWithValue("@p_ItemId", this.ItemId);
command.Parameters.AddWithValue("@p_Quantity", this.Quantity);
command.Parameters.AddWithValue("@p_UnitPrice", this.UnitPrice);
// result: The number of rows changed, inserted, or deleted. -1 for select statements; 0 if no rows were affected, or the statement failed.
int result = command.ExecuteNonQuery();
if (result == 0)
throw new DBConcurrencyException("The entity is out of date on the client. Please update the entity and try again. This could also be thrown if the sql statement failed to execute.");
// Update foreign keys values. This code will update the values passed in from the parent only if no errors occurred after executing the query.
if(order != null && order.OrderId != this.OrderId)
LoadProperty(_orderIdProperty, order.OrderId);
// Update non-identity primary key value.
LoadProperty(_originalOrderIdProperty, this.OrderId);
// Update non-identity primary key value.
LoadProperty(_originalLineNumProperty, this.LineNum);
}
// A child relationship exists on this Business Object but its type is not a child type (E.G. EditableChild).
// TODO: Please override OnChildUpdated() and update this child manually.
// FieldManager.UpdateChildren(this, connection);
OnChildUpdated();
}
private void Child_Insert(Order order, SqlConnection connection)
{
bool cancel = false;
OnChildInserting(order, connection, ref cancel);
if (cancel) return;
if(connection.State != ConnectionState.Open) connection.Open();
const string commandText = "INSERT INTO [dbo].[OrderStatus] ([OrderId], [LineNum], [Timestamp], [Status]) VALUES (@p_OrderId, @p_LineNum, @p_Timestamp, @p_Status)";
using(var command = new SqlCommand(commandText, connection))
{
command.Parameters.AddWithValue("@p_OrderId", order != null ? order.OrderId : this.OrderId);
command.Parameters.AddWithValue("@p_LineNum", this.LineNum);
command.Parameters.AddWithValue("@p_Timestamp", this.Timestamp);
command.Parameters.AddWithValue("@p_Status", this.Status);
//result: The number of rows changed, inserted, or deleted. -1 for select statements; 0 if no rows were affected, or the statement failed.
int result = command.ExecuteNonQuery();
if (result == 0)
throw new DBConcurrencyException("The entity is out of date on the client. Please update the entity and try again. This could also be thrown if the sql statement failed to execute.");
// Update foreign keys values. This code will update the values passed in from the parent only if no errors occurred after executing the query.
if(order != null && order.OrderId != this.OrderId)
LoadProperty(_orderIdProperty, order.OrderId);
// Update the original non-identity primary key value.
LoadProperty(_originalOrderIdProperty, this.OrderId);
// Update the original non-identity primary key value.
LoadProperty(_originalLineNumProperty, this.LineNum);
}
// A child relationship exists on this Business Object but its type is not a child type (E.G. EditableChild).
// TODO: Please override OnChildInserted() and insert this child manually.
// FieldManager.UpdateChildren(this, connection);
OnChildInserted();
}
