I have observed that any application with a RadGridView consumes CPU time even when the application is idle.  Using Spy++, you can verify this and see thousands of WM_TIMER messages being posted when a RadGridView is added to an application.  I have a simple repro app.  Full XAML below.  Just comment out the RadGridView, and the behavior goes away.  You can see using Process Explorer that even when the application is idle there is CPU usage, and using Spy++ you can see the timer events being fired rapidly.  This causes a large number of context switches and slows down performance noticeably.

Framework: .Net 4.5
Telerik Version: 2014.1.331.45

<Window x:Class="GridViewTimer.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
        Title="MainWindow" Height="350" Width="525">
    <telerik:RadGridView />
</Window>

In GridViewRowTemplate - ValueStates - RowInvalid VisualState, there is a storyboard to change ErrorIndicator.Visibility to Visible, but how can I change it in code behide?

I've tried

,but it seems no working.

Hi,
I Have a ComboBox and I set IsEditable to True.
the ComboBox have Following Items:
Alex
Bernard

in loaded Event I set ComboBocx.Text to "A"
it makes SelectedItem will be Alex
but I don't want change SelectedItem.
there is a solution for that?

1.

I have a radgridview, which contains RadRibbonGroups, which contains comboxboxes and textboxes.

However, I would also like to be able to resize the textboxes and comboboxes in the medium state. I could program it in XAML if I knew how to bind to  the RadRibbonGroup to get the current variant used. Or how to use wrap my controls in RadCollapsiblePanel inside the ribbongroup and bind to a property which contains the current state (small, medium, large).

? Is there a way to bind to the the current size variant of the group? I dont know which property to use.

 

2.

On another RadGridView, the RadRibbonGroups does not contain RadCollapsiblePabel and when it collapses, it collapses into a single collapse into a single button with an (ugly) standard picture.

? Is there any way to change this picture?

 

Thanks

Hi,

I am working on an application where I have to display the Current Time Indicator in UTC but there is no option or property to set it on the control.

Is there a way to do this? Do you plan to have this in the next release (The R2 2017 release of UI for WPF)?

I found a similar issue here: http://www.telerik.com/forums/currenttimeindicator-in-utc

Kind regards,

Soares

Hi,

The scenario: a zoommable chart with a DateTime axys that contains a lot of points, approxymately one each 5 or 6 minutes for years.

I set the X Axys MaximumTicks property to 10 and all work good.

But:

1) If I'm looking a range of years the time is not interesting for me
2)  If I'm looking a range of years I prefer that any ticks go exaclty to one day (1/3/2013 00:00:00 instead of 1/3/2013 12:23:45)
3)  If I'm looking a range of hours the time is really important

How to menage manually the parameters MajorStepUnit and MajorStep?
The ActualRangeChanged event don't exists!

Thank's
marc.

Hello everybody,

I have a RaDiagram which will be filled via MVVM.

Additionally my shapes and connections have custom properties - for the sake of convenience let's say every shape has a status property.

I customized the SettingsPane, so when entering a shape's SettingsPane I have a checkbox which changes the status property of the shape.
Checked -> shape.status = 1
Unchecked -> shape.status = 0

This is working fine.

Additionally I have a flag in my ViewModel which will be updated after the status change, so that my CanExecuteUndoCommand will set

 

Unfortunately the UndoRedoStack of the diagram tells me that there is nothing in the stack.
I guess that the UndoCommand (and of course the RedoCommand) only handles the default "Content" property of a shape.

Can you give me an example how I can extend your functionality, to the RadDiagram, that changing custom properties of a shape also fill the UndoRedoStack.

Thanks in advance,
Timon

Hello Team,

 

I am getting 2 times row loaded getting fired in my application. How to handle this problem.

 

More detail : First time e.Row is GridViewHeaderRow and Second time e.Row is GridViewFooterRow.. But we are not using Footer row in our application.

 

How to handle this situation any help .

 

Thanks,

Sundar M.

 

I have implemented a chart which displays a dynamic set of series (displayed as points), using BitmapRenderOptions with a SeriesProvider in an MVVM environment.  However, I have been unable to figure out how to control the color of each series.  The color of the series lives in each DataObject instance in the ChartSeriesProvider Source collection.

I have been able to set the color of the series based on this value if I chart the data as a LineSeries (by setting the Stroke property in the LineSeries style within the CategoricalSeriesDescriptor.Style declaration), but I haven't found a solution for PointSeries' yet.  In other charts in the project (that don't require a SeriesProvider), I have been able to set the color for the point series via PointSeries.DefaultVisualStyle.

I am able to get each series to be a different color using a palette, but since I need the series to match a specific color, even a custom palette wouldn't work (as I have no way to link the correct color to the series).

I know that I can't use a PointTemplate, as I want/need the BitmapRenderOptions, so how do I bind the color?  I know there must be a simple solution that I'm missing!

Thanks

Hi telerik,

We are plotting ScatterlineSeries on a RadCartesianChart. Works well.

However, as we plot several series in same chart, our users request a tooltip with the name of series to distinguish them.

I've tried to set the TooltipTemplate of the chart in which case I can get the tooltip for *points* and thought I could use that as a workaround and place Curve Name on each point. However, when I try to bind to an 'enriched' Datapoint I get an error as the points in the serie are ScatterDataPoints (though I've tried to add my 'customized' points, see below).

So I guess I'm missing the point here - or quite a few ;)

First of all, what is the recommended way of providing a serie-specific text on each curve as a tooltip?

And if my approach is not to far off, can you see what I do wrong?

Thanks,

Anders, Denmark