Questions on UI for WinForms Forum

1 answer

181 views

Hi,

Is it possible to get RadTrackBar to progress in fractions rather than whole numbers? (I.e. use double instead of int)

E.g. 0.1, 0.2, 0.3 instead of 0, 1, 2, ..

Thanks,
Brad

TrackBar

answered on 17 Sep 2009

1 answer

180 views

.NET Runtime 2.0 Error

Hello,

I've got a problem with an application using Telerik.WinControls.
Every few hours, seemingly random, it crashes with the following error:
EventType: clr20r3 P1: xcat.exe P2: 1.1.0.0 P3: 4aa9aa27 P4: telerik.wincontrols P5: 2009.2.9.701 P6: 4a535c8e P7: 1ac7 P8: 32 P9: system.nullreferenceexception
this error is also logged in windows event log as .NET Runtime 2.0 Error (Event ID: 5000).

From what I understand it's an unhandled NullReferenceException somewhere in Telerik.WinControls assembly.

Using above event data (P7: 1ac7) and windbg I got the following result:
Module: 00988b00 (Telerik.WinControls.dll)
Token: 0x06001ac7
MethodDesc: 04e95348
Name: Telerik.WinControls.RadControlAnimationTimer.Stop()

And than P8: 32 pointed me to the following disassembly line:
L_0032: callvirt instance void [System.Windows.Forms]System.Windows.Forms.Timer::remove_Tick(class [mscorlib]System.EventHandler)

So I think it happens in Telerik.WinControls.RadControlAnimationTimer.Stop() when Tick event hadler is removed (although I'm not 100% sure).

The application does not use RadControlAnimationTimer but I use other Telerik controls (RadGridViews, RadButtons, RadComboBoxes, RadMenus) and they probably make use of the RadControlAnimationTimer.

I also have a try-catch block around Application.Run() but that particular exception does not get caught there - so I can't look at the stack trace to pinpoint where and if the exception originates in my code.

Could you maybe suggest some way of catching that exception or maybe disabling RadContolAnimationTimer.

Regards,

Piotr.

General Discussions

answered on 17 Sep 2009

7 answers

435 views

Summary Rows

I need to be able to create a summary column that contains the results of a calculation using other columns in the grid. I understand that you can set the aggregate function for the summary column to none, however, the summary column requires a field name and does not allow an expression. What is the best way to achieve this functionality?

Thanks,

James

GridView

answered on 16 Sep 2009

3 answers

493 views

AutoHide Doesn't Seem to Work for Right-Docked ToolWindows

Hello,

I have a RadForm containing a RadDock and one left-docked toolwindow, one fill toolwindow and three right-docked toolwindows. I am experiencing three problems.

First, because I don't want the Right-docked tabs to be visible on form load, I call the .Hide() method to hide the three tool-windows. Later, when I want their tabs to be visible, I call the .AutoHide() Method for the right tool-windows, and for some reason they display their tabs on the left side of the screen. When you hover over the tabs, they slide out from the left side, but if you click the auto-hide button, they dock on the right side of the form. I have found a BAD workaround, which involves calling the .Show() method just before the .AutoHide() method, but this causes a lot of drawing artifacts and ugliness on the screen.

Second, in this same configuration, when I originally launch the form, by clicking a button on the MdiParent, the first thing I see is one of my right-docked toolwindows slide-opening animation, hovering in space, then disappearing, prior to the rest of the form displaying. Weird.

Third, If I have all three right-docked windows auto-hid, and hover over their tabs in sequence, it appears that the tabs do not hide when i move from one to the next, but in fact, all three stay open, with the last one on top of the first two. Thus, when I click the icon to turn off auto-hide and dock the window permanently, it actually opens all three in this manner, not just the last one I hovered over, as you'd expect.

Any help would be appreciated.

Jeremy

Dock

answered on 16 Sep 2009

4 answers

195 views

Problem with persistent configuration, LoadLayout and SaveLayout

I have a problem with persistent configuration in my RadGridView

When my application starts I create a default setup in my code.

After that I check weather a saved grid configuration exists, and if so it is set by using RadGridView.LoadLayout(conf)

The problem is that if a column by default has IsVisible=false it stays false even though the saved grid configuration sets it to true. This does not apply the other way around, - if the default is true and the configuration says false it is false.

The column order has the same problem. There is a default order, which overrides the configured order.

I have checked the string that is written and read by the SaveLayout and LoadLayout, and it is correct.

Is this a known error, or am I doing something wrong?

Regards, Jill-Connie Lorentsen

GridView

answered on 16 Sep 2009

4 answers

385 views

Wrapping Text in Cell

How to mimic behavior of DataGridView TextWrapping in RadGridView ?
I have set RadGridView cell Wrap = true, and AutoRowHeight = true, but the result is Output
Did I miss something?

Best Regards,
Fakhru Rahman

GridView

answered on 16 Sep 2009

1 answer

146 views

custom cell type

I've created a custom cell type and i'm creating it in the CreateCell event.
This cell must look at some values of the databoundItem to adjust itself.
What event should i register to be able to update those cells ?

thanks

GridView

answered on 16 Sep 2009

3 answers

153 views

ComboboxColumn changes to TextboxColumn

Hi, I'm testing the latest release and it seems that whenever I try to add a bound comboboxcolumn or loopkupcolumn in a radgridview, it changes it back to the default textboxcolumn even if I had a datasource attached to the column.

Any idea?

GridView

answered on 16 Sep 2009

4 answers

212 views

Problem with AllowNaturalSort

I am using the Q2 2009 version of the grid control. The AllowNaturalSort property is set to True, but when I click on the grid column header it only toggles between sorting Asc and Desc. The documentation says that it should go from Asc -> Desc - > Unsorted, but this does not happen in my grid. Is there a bug with the AllowNaturalSort property? I want to be able to toggle the sorting simply by clicking the column header (no extra button to remove sorting).

Thanks,
Sean

GridView

answered on 16 Sep 2009

1 answer

230 views

[Solved] RadSchedulerNavigator translation

Hi,

I have made a new scheduler navigatorlocalizationprovider and am setting the SchedulerNavigatorLocalizationProvider.CurrentProvider in my Form.Load() method, but the translation doesn't show. Do I need some other settings?

I have successfully translated everything but the navigator.

Scheduler and Reminder

answered on 16 Sep 2009