Implement the pull-down-to-refresh function of the databoundlistbox

[ellic]

When drop down the top of the listbox, people got used to get the newset items of the  listbox(namely some certain event fires), just like the pull-down-to-refresh listbox in iphone or android. But the official listbox hadn't implement this function.

Would the telerik team of windows phone  implement this function in the databoundlistbox?

thanks.


ellic

[Deyan]

Hi Ellic,

I am happy to inform you that this feature is already planned and we will be researching the different possibilities to implement it.

I would also like to mention that it is currently possible to implement similar behavior on your side by using the ScrollStateChanged event exposed by RadDataBoundListBox and listen for the TopStretch state which is fired when the user pulls down the scrollable list when it is in its starting position.

I hope this helps.

Let me know in case you have further questions or need assistance.

Greetings,
Deyan
the Telerik team

[ellic]

Hi, Deyan, thanks for your reply. 

I got another question. After purchasing the windows phone radcontrols, I downloaded those dll files, and used then in my project.

 

But I got a little confused with the license agreement. Cause when people unzip a xap file(after building the windows phone project), the Telerik.Windows.Controls.dll Telerik.Windows.dll, something like that, are so easy to be seen. People can just copy those dll file and apply them into their own project.

 

So I want to know how to abvoid this situation, I just want that even the dll files are copied, they wouldn't work.

 

Thanks,

 

ellic

[Deyan]

Hi Ellic,

Thanks for your question.

Normally, it isn't that easy to download the XAP of an application that is published on the marketplace so you you should not be worried that someone can use the Telerik DLLs in their application illegally.

Let me know if you have further questions or need assistance.

Kind regards,
Deyan
the Telerik team

[ellic]

Hi,Deyan.

Thanks for your reply.

Actually people will find it so easy to download the XAP of an applicatoin, just like a Chinese website: www.xapcn.com. People can download all kinds of app XAP.

So my suggestion is that a set of Telerik RadControl is associated with the product-id of an applicatoin and the register account, the user login the Telerik account to register an applicatoin with the product id and download the corresponding RadControl which contains the product id info. Then when the RadControl is used in the application. It will check the product id of the application, to find it  matching the info in the coresponding dll or not.  If not matched, a messagebox will show "Illegally user" (something like that);

[Deyan]

Hi Ellic,

Thanks for writing back.

We will evaluate your proposal and will consider different possibilities to cover the cases that you describe.

Let me know in case you have further questions or need assistance.

Kind regards,
Deyan
the Telerik team

[Nathan]

I would also like go about implementing a pull-down-to-refresh control as well, but I need a little bit more than simply catching the ScrollStateChanged event. My goal is to have the refresh notification content sit on top of the DataBoundListBox, expanding and shrinking according the distance traveled by the ScrollContentPresenter during the TopStretch state.

From what I understand, a scale transform is applied to content in the ScrollViewer to simulate the "squishing" effect when scrolling past the top and bottom. Is there a way for me to drill into the DataBoundListBox, grab the scale value, and set my notification height accordingly?

Thanks for your help, and keep up the good work on these RadControls!

[Deyan]

Hi Nathan,

I am happy to inform you that we have already implemented this feature in RadDataBoundListBox and it will be available officially with Q2 2012.

Let us know in case you have further questions or need assistance.

Kind regards,
Deyan
the Telerik team

[Muneesh]

Hi
I need to refresh the control in my application when pull bottom to top in screen. Is there any way to do achieve this.

 

[Ivaylo Gergov]

Hello,

Currently the DataBoundListBox does not provide such an experience.

Please, let me know should you need further assistance.

Regards,
Ivaylo Gergov
Telerik