Hey everyone,

I'm currently working through some existing project, and would like to set up a RadComboBox that will complain if it doesn't have a current selection, or the current selection is an empty string. The current ComboBox is the stock WPF control, and populates itself like this:

I'm new to MVVM and WPF, and this doesn't seem standard. So, what I want to know is if there's a nice way to have the RadComboBox control complain about an invalid SelectedItem? Do I need to rip this apart and do data binding? If so, is there an example I can look at to get an idea?

As always, thanks for the help,

Lee

Hi guys,

I am currently working on a way to display data, that is structured on 3 levels.
On first level is a week, on second level a day, and on the third level a basic entry.

Based on that system I thought about the RadGridView and the Child-Relations.
My main problems now are, that I have especially on the third level way too less space in the child-table so its basically unreadable. 
Is there any way to give the childtables more space? 

The other problem is, that I haven't found out, how I could set different Templates for the childtables.
The HierarchyChildTemplate only works for one Child as it seems.

The reason why I not just Group by the Days and weeks is, that I later want to use Drag and Drop entries between the days. 
I thought this would be more possible in a hierarchical system.

I also tested the RadPanelBar, but there I would need to create somethin like a table with frozen headers and so on manually.

Greetings,

Benedikt

Hello,

I am using a Docking-Layout in my Application with some RadPane's in it. Each RadPane is bound to a different ViewModel. When the RadPane is visible, everything works as expected.

But I struggle with some Binding Errors when the RadPane is hidden on start up of my application. Is there a way to reset/update the DataContext of the RadPane when the PaneStatus changed to visible?

I can provide a code example if you want.

Cheers!

Tobias

I'm trying to spread out the items in my carousel so there is a bit of space between them (and ideally no change in z depth as they animate).

It seems like the items can only spread out to the edges of the screen. In my case I need 3 landscape images visible at once.

Instead of overlapping 3 images on screen like |[--][--][--]| where the center image is raised/focused, I'd like [-|-][--][-|-] where the side images are the same size and partially off screen.

I've tried the following, as well as using bezier curves with control points, etc.

<Path x:Key="horizontalPath" Stretch="Fill">
  <Path.Data>
     <LineGeometry StartPoint="-1000,0" EndPoint="1000,0" />
  </Path.Data>
</Path>

Hi, on RadGridView ShowSearchPanel, 

1. How to change the text 'Full Text Search' ?

2. and How to delete of disable 'x',close boutton, in ShowSearchPanel?

Please give the solution and example Code. 

Thanks.

While editing a value I want to be able to tab to the next item in the grid.  Currently this requires two tabs- the first one commits the edit and the second press to navigate. How can I change this behavior?

I am using RenderMode Flat.

I would accept navigating to the next item on Enter key as well as Tab if it makes the solution easier.

Hi

i use tile in grid without tilelist

when i change tile's content, this can't show very well

if length of text is bigger than old text can't show full of old text

text just showing in size of old text

in pictures' i change "i" to "Hi" and you see what happend

Hey all,

I'm dense when it comes to xaml, wpf, and telerik. I'm looking to extend a regular Textbox with custom validation logic, which is all well and good. What I now want to do is handle errors, like RadMaskedTextInput does, where I can trip the error state/throw a validation error, have the box outlined red with the red arrow on the top right, and the error tool tip pop up when hovering.

There's good documentation that handles each problem individually, but the matter of tying it all together, and which error handling to choose, is the issue. If I could do the error handling/display of RadMaskedTextInput, or other telerik controls, without needing to use it, that would be great.

Thanks,

Lee