Solved

WPF, C# - Is it Possible to Set the ItemsSource of a Control in a Different Class From A Static Method?

Posted on 2011-03-08
6
364 Views
Last Modified: 2012-06-21
Is it Possible to Set the ItemsSource of a Control in a Different Class From A Static Method?

I have an addin (class 1) that allows you to view and filter table records. Below the filters is a ListView control that displays saved queries and a button to open a window that manages those queries. In the window (class 2) you can add, edit, and delete queries. After the user saves changes, I would like to update the ListView control in class 1 from class 2. If possible I would like to use the following syntax:


//Class 1 Static Method:
public static void SetListViewItemsSource(ObservableCollection<Query> queries)
{
      this.listViewControl.ItemsSource = queries;
}

// To Change ItemsSource From Class2:
Class1.SetListViewItemsSource(queryCollection);

Open in new window


I know this approach is not possible because you cannot use the "this" keyword in a static method. Is there an alternative, WITHOUT having to create and instance of Class1??

Thanks!
0
Comment
Question by:bickes0724
  • 3
  • 3
6 Comments
 
LVL 7

Expert Comment

by:dimaj
ID: 35069768
This might be a dumb question...
How are you planning to see the control if you are not instantiating Class1?

As far as an approach goes, take a look at events. You could pass data via EventArgs when a query changes.
0
 

Author Comment

by:bickes0724
ID: 35070178
Class 1 is already instantiated because it is loaded first. The popup window loads from a button clicked on the Class 1. So, when an update to the user saves changes, in Class 2, I just want to copy the changes/collection to the ItemsSource in Class 1.

The event approach sounds promising, I am not positive how to implement it.
0
 
LVL 7

Expert Comment

by:dimaj
ID: 35070418
0
Networking for the Cloud Era

Join Microsoft and Riverbed for a discussion and demonstration of enhancements to SteelConnect:
-One-click orchestration and cloud connectivity in Azure environments
-Tight integration of SD-WAN and WAN optimization capabilities
-Scalability and resiliency equal to a data center

 

Accepted Solution

by:
bickes0724 earned 0 total points
ID: 35071210
Thank you for your help!!!
0
 
LVL 7

Expert Comment

by:dimaj
ID: 35071797
So, did the events approach work?
0
 

Author Closing Comment

by:bickes0724
ID: 35120641
Thanks
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Extention Methods in C# 3.0 by Ivo Stoykov C# 3.0 offers extension methods. They allow extending existing classes without changing the class's source code or relying on inheritance. These are static methods invoked as instance method. This…
This article describes a simple method to resize a control at runtime.  It includes ready-to-use source code and a complete sample demonstration application.  We'll also talk about C# Extension Methods. Introduction In one of my applications…
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …

828 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