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Bugs in Grid or old version?

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Dmitry
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Dmitry asked on 01 May 2009, 05:05 PM

I am trying to figure out why I have a few bugs in using the WPF grid. I am open to the possibility that i have an old version of the GridView but since I did download the trail components fairly recently (within the last 4 weeks) im hoping im not too out-of-date.

Here are my three issues that need immediate attention:

Bug: Column Sorting

We have a bug that if we click to sort a column, click again to sort the other way, then click again to reset, it will break sort. Clicking after that will NOT sort anymore. It does nothing!

In your demo that we downloaded we also see this in the following sample of this bug, so we don’t think it sour code:

Populating with Data > Data Sources > Property Path

Online though, this works, so is this a bug that has been fixed and we simply need to get updated components?

Bug: Binding, then Rebinding

I have an application with a BackgroundWorker class that does some work, puts together a custom collection in a LIST<> and in the Worker completed method binds it to the grid. This works fine, but once i run the worker again, the new set of data is not visible. My original content vanishes, grid scrollbars change, but i dont see anything.

The code is VERY simple, MyGrid.Itemsource = e.Results

i've tried adding a .rebind and even setting Itemsource to NULL before assigning the new results, nothing fixes this issue.

I switched to use a LISTBOX standard .NET control instead and now things work perfectly using the same exact code.

Bug: Missing scrollbars

We have a large example that i simply am not allowed to post in full here, but it seems that for whatever reason us NOT auto generating columns and instead creating them manually is not turning on the scrollbars.

We generate the columns in code and add them to the grid.

I made sure its an issue with your control and not a XAML layout problem by putting a border around the grid that shows perfectly with right/bottom ending where I expected it to end visually, but still no scrollbars from your control that clearly has data in both directions that is not visible.

I can press keydown and go off screen!

Next Steps

For next steps and in general can you tell me how i can check if we have the latest build? Is there hot fixes we can apply?

I know we are still in "trial" mode but we need to finish this proof of concept before the work order can go ahead purchasing your control suite. Please help me fix my issues so i can help get you this sale.

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Milan
Telerik team
answered on 05 May 2009, 08:52 AM
Hi Dmitry,

We are currenctly inspecting the problems that you have reported and we will write back as soon as possible. Meanwhile,  you could try our latest builds which you can find in our download section under Rad Controls For WPF -> Latest Internal Builds.
You can check the version of our suite on your machine by taking a look at the assembly version of any of our assemblies. For example, open the properties window of Telerik.Windows.Control.dll and check the file version attribute - our latest official release has a version of 2009.1.413.35.

Best wishes,
Milan
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Milan
Telerik team
answered on 05 May 2009, 12:20 PM
Hi Dmitry,

I was not able to reproduce the Binding and Missing Scrollbards problem. Could you send us a project where the problems that you have described are visible? I am also sending you my test project where I load data using a BackgrondWorkers and I add columns programmatically.

Greetings,
Milan
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