Questions on UI for WinForms Forum

11 answers

255 views

Large number of controls disappearing while editing ribbon UI

I have entire button groups, ribbon groups, winForms controls, etc. that have disappeared from the form since I started creating my UI with the RibbonBar.

I looked in the designer and the controls are still there, they are just not being rendered.

Is this a known issue? Is there anything I can do?

RibbonBar

answered on 23 Nov 2011

1 answer

291 views

TelerikMetroBlue Theme Customization

How do I customize TelerikMetroBlue theme?

Themes and Visual Style Builder

answered on 23 Nov 2011

1 answer

191 views

Chart does not display data when datasource is reset

I have the following code that gets called on form load and when a button is clicked:

rcSummary.Series.Clear()

rcSummary.RemoveAllSeries()

rcSummary.Clear()

rcSummary.DataSource = PersistenceHelper.GetResponseContentDailySummary(_dbContext, rdtStartDate.Value.Date)

The chart displays with the proper data when the form loads. If the button is clicked on the form, the chart displays "There is no or empty series".

I have verified the correct data is returned by the GetResponseContentDailySummary function.

Any help would be much appreciated,
-jm

Chart (obsolete as of Q1 2013)

answered on 22 Nov 2011

1 answer

281 views

How to create Custom Node Element in TreeView?

Hello,
I want to show large image in tree node and create border for node.
So I think, I need to create treeview custom node, am I right?
Please give me advice how to do, create custom node and do other things?

Please help me,
Thank you so much.
Myat Su

Treeview

answered on 22 Nov 2011

8 answers

888 views

RadGridView extremely slow

Hi,

I do a little tests with RadGridView and I have to say that the RadGridView ist extremely slow, especially the scrolling. I first added a DataTable object as data source with 130 rows and 20 columns. The application was running full screen with 1920x1200 screen resolution. Scrolling is nearly impossible, the grid takes 2 or more seconds to update the position of the rows. After that I added a List<T> with 500 DateTime objects to see if the problem lies elsewhere, but without success.

My computer is a Pentium Quad Code @ 2.8Ghz, 8GB ram, NVidia Quadro NVS. I know that the graphic adapter isn't the fastes in the world, but for scrolling a table it should be enough.

What can I do to improve the performance!? The problem is that our customers have way slower computers. So the RadGridView is not useable for me.

Thanks in advance

Martin Horst

GridView

answered on 22 Nov 2011

3 answers

290 views

How to set GrdViewComboBoxColumn by DisplayMember sorting?

Hi :

How to set GrdViewComboBoxColumn by DisplayMember sorting?

Now,I find the GridViewComboBoxColumn by ValueMember sorting.

Greetings!
Look forward to you!
Ajing

GridView

answered on 22 Nov 2011

3 answers

211 views

Numeric datatypes

I have noticed both in the demo and my own test code that if a property is any numeric type, the max value is 100. How do I control this?

Also, I noticed that on the validating, the data types of the OldValue and NewValue are not the same, e.g. OldValue is Integer but NewValue is Decimal.

PropertyGrid

answered on 22 Nov 2011

2 answers

131 views

[Solved] RadProgressBar passed as Byref fails

Hi,
I have a radProgressBar that I'm using in a sync component. I pass the RadProgressBar with a byref into the sync class expecting that when I update the Value1 parameter it will change the bar position.

If I set the Value1 field just before the sync command from within the form it works fine but if I try the same thing once in the sync component it doesn't update the field.

Now I thought that using byRef would work - it certainly used to.

Any pointers (pun intended)?

Regards,

Jon

ProgressBar

answered on 22 Nov 2011

5 answers

281 views

Q3 2011 upgrade problems

Hi,

I just installed the Q3 2011 and I'm having a lot of problems. My installation process was like this:
1. Uninstall prevous release (Q2 2011)
2. Install Q3 2011
3. Start VS - 2010
4. When I try to use the "Telerik|Radcontrols for WinForms|Upgrade Wizard" menu option I'm receive the following error message:
---------------------------
Microsoft Visual Studio
---------------------------
Object reference not set to an instance of an object.
---------------------------
OK
---------------------------

Any suggestions?

Francisco

General Discussions

answered on 22 Nov 2011

1 answer

119 views

Navigate through Radchart using Binding navigator

Hello,
I'm unsing the RadChart and it's very interesting. but sometimes my Rachart datasource has many datas and the XAxis can not display them all (of course, because sometimes more than a thousand chartitems are returned to the radChart).
So I want to use a bindingnavigator to navigate through them. is it possible? how?
Else, can you explain me another solution to navigate through my radchart when there is a lot of datas returned?

Thank you.

Chart (obsolete as of Q1 2013)

answered on 22 Nov 2011