Hi,

I saw this text on a Tips and Tricks page (http://www.telerik.com/help/silverlight/radgridview-performance-tips-tricks.html):

Try not to place RadGridView in controls/panels which will measure it with infinity. For example, ScrollViewer, StackPanel and Grid with Row.Height=Auto or Column.Width=Auto will measure with infinity. If RadGridView is measured with infinity the virtualization turns off. Also setting RadGridView.ColumnWidth to a specific width (like 100) will increase both horizontal & vertical scrolling performance. Auto is a little bit slower and Star is the slowest (most noticeable when you have a lot of columns).

What I normally do, is this:

<Grid>
  <Grid.RowDefinitions>
            <RowDefinition Height="Auto " />
            <RowDefinition Height="*" />
          <RowDefinition Height="Auto " />
          </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>

 
<Custom ToolBar Grid.Row="0" />
  <RadGridView Grid.Row="1"  />
 <StatusBar Grid.Row="2" />
</Grid>

But it seems that the tip-and-trick above tells me that this is a bad idea when it comes to performance.
But I am bit at a loss on what to do, then. I want the GridView how have only the available space. If I cannot use the stackpanel or grid, then how? Dockpanel?

I've googled a lot of answers to problems with infinity, but has been unable to spot a solution without Auto or Star.. Seems like everyone knows how to fix it without having it spelled out..  like me :-) ... Help will be appreciated!

I have a two columns with buttons in them:
public class GridViewButtonColumn : Telerik.Windows.Controls.GridViewColumn

Based on the data in the row, I need to enable or disable one of those two buttons.  So, I have a Boolean value on the row but I haven't figured out how to use that value to bind the IsEnabled property of the button. 

Appreciate your help,
Joel

PS.  A code example is always welcome.

I would like to highlight items in my charts when a user moves the mouse over them. For example, placing a border around a bar on a bar series or changing the color of a data point on a line series. When the user moves the mouse off of the item then it would return to it's normal appearance. Does anyone know how I can achieve this?

Hi,

I have a RadMap with many ellipse (created from EllipseData) and I would like to display text beside the left border of these ellipse.
I have been able to do something like this with a MapEllipseGeometry (that have a CaptionLocation) in an InformationLayer, but I wonder if it's possible to do this with ShapeData in VisualizationLayer.

Thank you!

When using the RadRibbonWindow in combination with RadRibbonView, I have an odd problem with the position of the quick access toolbar, and the title/application name. For some reason they become positioned below the title bar. See attached screen shots.

From my tests it appears, that the problem is only present when the property IsBackstageOpen is binded, and the property CollapseThresholdSize is
set. Removing CollapseThresholdSize solves the problem?

I can recreate the problem using this XAML:

Hi!

What is the best way to sort the children of a certain node?

Hi All,

Here "ItemCollection"  having 2 items.I am ssigning one  item to RadTreeViewItem as shown bellow.

Inside i am calling same method and assigning RadTreeViewItem(Insted of ItemCollection), if i call like this i am getting error "Can not convert type RadTreeViewItem  to ItemCollection "


BuildConfigDetailsData_Helper(ItemCollection ndcol, ref string strConfigDetailsData)
        {
            string strImagesPath = "file:///" + _Params.SizerFolderName + "xml\\";
            RadTreeViewItem nd;
            for (int iCount = 0; iCount < ndcol.Count; iCount++)
            {
                nd = (RadTreeViewItem)ndcol[iCount];

   BuildConfigDetailsData_Helper((ItemCollection)nd, ref strConfigDetailsData);


Please help me how can i proceed..........................

Hi 

Is there some way by which we can get the points on a RadDiagramShape. 
Currently we see that the RadDiagramShape has Geometry property. Is there some way to get a PointCollection from the shape.
eg Is it possible to get the four points of a rectangle represented by  RadDiagramShape.

Regards
Jeevan

Hi,

the ColorEditor ist running fine, but is it possible to save the "new" colored pic as new Image?

Thanks
regards
ww

Something is wrong with my event handling. Trying to throw a few events like KeyDown, SelectionChanged, and most importantly a notification that a Pan or Zoom has occurred via ChartPanAndZoomBehavior_Changed event handler.

Here is a XAML snippet, what is going on? Thanks in advance?

<telerik:RadCartesianChart Grid.Row="2" Name="chart2" Palette="Arctic" KeyDown="chart2_KeyDown" IsHitTestVisible="True" DragOver="chart2_DragOver"   >
            <telerik:RadCartesianChart.Behaviors>
                <telerik:ChartSelectionBehavior SelectionChanged="chart2_SelectionChanged">
                </telerik:ChartSelectionBehavior>
                
                <telerik:ChartTrackBallBehavior ShowTrackInfo="True" SnapMode="AllClosePoints" ShowIntersectionPoints="True">
                </telerik:ChartTrackBallBehavior>
                <telerik:ChartSelectionBehavior DataPointSelectionMode="Single" ></telerik:ChartSelectionBehavior>
                <telerik:ChartPanAndZoomBehavior  PanMode="Horizontal" ZoomMode="Horizontal" Changed="ChartPanAndZoomBehavior_Changed">
                </telerik:ChartPanAndZoomBehavior>
            </telerik:RadCartesianChart.Behaviors>