Solved

Edited Entity should not commit changes only when Save button is pressed

Posted on 2010-08-17
1
354 Views
Last Modified: 2012-05-10
Hello,

I have a Mainform + smallDialog.

scenario:

The Mainform has a datagrid with entities bound.

The smallDialog updates the entity double-clicked-on-the-datagrid-in-Mainform wich is passed to the smallDialog and bound there again to a bindingsource.

When I change now some data in the textfiels AND leave the textfield so the focus is lost, the data is immediate updated in the datagrid of the Mainform.

What I want is to update ONLY when the OK-button is pressed.

How can I change that update-behaviour without cloning the entity and do many workarounds?
0
Comment
Question by:MSFanboy
1 Comment
 
LVL 62

Accepted Solution

by:
Fernando Soto earned 500 total points
ID: 33465085
Hi MSFanboy;

You can use the BindingSource.SuspendBinding to cause the updating of bound fields to not take place until you enable updates with BindingSource.ResumeBinding. Please take note from Microsoft documentation :

Using SuspendBinding and prevents changes from being pushed into the data source until ResumeBinding is called, but does not actually prevent any events from occurring. Controls that use complex data binding, such as the DataGridView control, update their values based on change events such as the ListChanged event, so calling SuspendBinding will not prevent them from receiving changes to the data source. For this reason, this SuspendBinding and ResumeBinding are designed for use with simple-bound controls, such as the TextBox control. Alternatively you can use these methods in a complex binding scenario if you suppress ListChanged events by setting the RaiseListChangedEvents property to false.

Fernando
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: Ivo
C# And Nullable Types Since 2.0 C# has Nullable(T) Generic Structure. The idea behind is to allow value type objects to have null values just like reference types have. This concerns scenarios where not all data sources have values (like a databa…
Exception Handling is in the core of any application that is able to dignify its name. In this article, I'll guide you through the process of writing a DRY (Don't Repeat Yourself) Exception Handling mechanism, using Aspect Oriented Programming.
Learn how to create flexible layouts using relative units in CSS.  New relative units added in CSS3 include vw(viewports width), vh(viewports height), vmin(minimum of viewports height and width), and vmax (maximum of viewports height and width).
As a trusted technology advisor to your customers you are likely getting the daily question of, ‘should I put this in the cloud?’ As customer demands for cloud services increases, companies will see a shift from traditional buying patterns to new…

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

27 Experts available now in Live!

Get 1:1 Help Now