Ability to see which item was checked initially in tri state mode

[Kristjan Einarsson]

Hi I can see this from your release notes "Ability to see which item was checked initially in tri state mode"  here http://www.telerik.com/versionnotes.aspx?id=2268

any info on how to use this ?

Best regards
Kristján.

[Petar Mladenov]

Hi Kristjan ,

In order to access the initially checked item in tri state mode, a new EventArgs class was introduced with the Q2 SP1 release - RadTreeViewCheckEventArgs which inherits RadRoutedEventArgs and contains the boolean property  IsUserInitiated. This property indicates whether the item is the initially checked one.

Therefore, when handling the Checked() event you can cast the e parameter (of type RadRoutedEventArgs) to RadTreeViewCheckEventArgs and if the IsUserInitiated property is true, then the source of the event is the initially checked item.

I prepared a sample project illustrating how to implement this scenario and displaying the initially checked RadTreeViewItem's Header in a TextBox. 

We will add this info in the CheckBox Support help article as soon as possible. We'd appreciate any additional comments on the matter. I also updated your Telerik points. 

Best wishes
Petar Mladenov
the Telerik team

[Kristjan Einarsson]

Thank you very much :)

[Anthony]

I need to be able to know if the item checked or unchecked is user initiated in both the PreviewChecked and PreviewUnchecked events. Currently (2010 third quarter release), a RadRoutedEventArgs is passed as a parameter to both preview event handlers, which is a RadTreeViewCheckEventArgs, but the IsUserInitiated property is always false, even on the tree view item node that actually was the user initiated item. The IsUserInitiated property is only set properly once the Checked and Unchecked events are called.

[Petar Mladenov]

Hi Anthony,

Thank you for your feedback. I logged your feature request in our PITS where you can vote for it (TreeView: Ability to see which item is initially checked (IsUserInitiated=true) in PreviewChecked event when TreeView is in TriState mode) from tomorrow the latest. I also updated your Telerik points.

Feel free to ask if you need further assistance.

Kind regards,
Petar Mladenov
the Telerik team

[Anthony]

Thank you for the quick response.

As I mentioned before, I also need to be able to know if the item going to be unchecked was user initiated in the PreviewUnchecked event, not just the PreviewChecked event. Please take this into consideration as well. Thanks.

[Tina Stancheva]

Hello Anthony,

We will definitely consider your feedback. I updated the PITS item accordingly. You can vote for it from here thus increasing its priority.

All the best,
Tina Stancheva
the Telerik team

[Arpit]

Is the requested feature "Ability to check which item was selected" in PreviewChecked event is available in latest release?

[Petar Mladenov]

Hello Kristjan Einarsson,

This feature request is already implemented it and you can use the Official Q1 2011 dlls (0315) or the SP1 0419. Thank your for your interest.

Best wishes,
Petar Mladenov
the Telerik team