What is the trick for binding Errors to the tooltips of GridViewDataColumns and GridViewComboboxColumns?

This is what I have and it only displays the default red line.




thanks in advance.
Gene.

I have the need to lock a grouped column... in other words, to not allow the user to close (un-group) the selected column.  Is this possible?

Take for instance grouping by the demo column "Title".  I do not want to also then display the "Title" column seeing that it is now shown in the group.  However, if you hid the "Title" column, and then programmatically group by that column... and then if the user closes that group - Oops! No "Title" column shown to re-group by later.

Thanks!

I'm using the Windows 7 Theme for my WPF controls with the following code:


The controls use the theme as expected at runtime.  However, when viewing the controls at design-time in Expression or Visual Studio they show up with the default (Office Black?) theme.  How do I select WIndows 7 (or any other theme) at design time?

Cheers,
Mike

Hi..
How can I programmatically create a TreeView with several nodes as Hyperlinks that can be clicked?
Say I want to have the Mac Node as hyperlink and nav to  a URL.
thx

Fruit
    Apples
         -  Mac
         -  etc...
    Oranges
         - 

Hello,

I have a trouble whith the color of the numericindicator in my application namely altough the foreground  is setted to blue and it is the same color like scale, color of th numericindicator darker.

Could please check code below and screenshot.

Thnx

Daniel

Hi,

I'm using the RadTreeView in a MVVM scenario.
Depending on the model's IsSelectable property the corresponding item should be either selectable by the user or not.
Since this doesn't seem to be supported by the RadTreeViewItem container itself (which would be a nice new feature ;)),
the only way I found in this case is to listen on the container's PreviewSelected event and setting the "e.Handled" value to "true" if the item shouldn't be selectable.
So it looks like:

void RadTreeView_PreviewSelected(object sender, RadRoutedEventArgs e)
{
  var item = e.GetItem<IMyModel>(); // extension helper method
 
  // check item that will be selected   
  if (item != null && !item.IsSelectable)
    e.Handled = true;
} 

But this results in a major drawback:
Upon canceling selection of the new item 'X', i'm loosing the currently selected item.
Afterwards the item 'X' has the focus rectangle and the selected item is null.
So the question is:
Is there a possiblity to cancel the selection of a new item without loosing the previous selection ?

It tried to hook the PreviewSelected, PreviewUnselected, Unselected, Selected events.
But even if set an additional flag on "PreviewSelected" which indicates that I want to revert/ignore the next unselection, I'm out of luck.
- PreviewUnselected is called before PreviewSelected => I can't determine whether to cancel or not since i don't know the future ;)
- Unselected gets actually called directly after PreviewSelected, but the RadTreeView's SelectedItem is still unchanged.
  Setting the "e.Handled" value to "true" won't change anything.
 
The second question would be:
Upon the "Unselected"-Event shouldn't the treeview's currently selected item be either the next selected item or null ?

Thanks in advance

Thorsten Klingert

Hi,

I've just recently started using the Telerik tools and I'm rapidly becoming a fan.

I have one feature request though;

I have a chart which can be seen in the attached file, currentgraph.png. As you can see, I'm using the Marked Zones feature - which is great - but what I would really like to see, is the option of doing what I've done in the other attached file, newgraph.png (made in Paint, but I'm sure you get the idea).

This way, I don't have to stare at the ugly red block of background all the time, and when something red appears on my chart, I know it needs my attention.

Is there a feature that I don't know or is there any hope of seeing this feature in a future release?

hi
how can i Get Value of Cell from Selected Item in RadGridView .

I have an ObservableCollection of POI's that I bind to an InformationLayer. The results are that I get a bunch of silver balloons with a red dot in the middle. How can I control the color inside the balloon? This would be great to color code my balloon by priority. Also, how can I get a tooltip to display stuff like the address, misc text, etc?

I'm trying to use the Tab key to navigate between items in an OutlookBar. I've noticed that Ctrl-Tab works, but Tab by itself doesn't. The Silverlight version of the OutlookBar does navigate between controls using only the Tab key.
Is there something that I'm missing to get this working the same way on both WPF and Silverlight, with just the Tab key?

Here's some XAML that's similar to the layout that I'm trying to create:
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition />
            <ColumnDefinition Width="2*" />
        </Grid.ColumnDefinitions>
        <telerik:RadOutlookBar>
            <telerik:RadOutlookBarItem>
                <StackPanel>
                    <TextBox>Try to</TextBox>
                    <TextBox>tab</TextBox>
                    <TextBox>between</TextBox>
                    <TextBox>us</TextBox>
                </StackPanel>
            </telerik:RadOutlookBarItem>
        </telerik:RadOutlookBar>
        <StackPanel Grid.Column="2">
            <TextBox></TextBox>
            <TextBox></TextBox>
            <TextBox></TextBox>
            <TextBox></TextBox>
        </StackPanel>
    </Grid>