I have done grouping in the Telerik Gridview,My task is to Alter the header of the Group item at the run time , So i have implemented the below Code while clicking on the Expander i could able to get the content Nothing is displayed. 
Please help me on this 


 <telerik:RadGridView x:Name="telerikGrid" ItemsSource="{Binding Path=Collection}"  GridLinesVisibility="Horizontal" KeyboardNavigation.TabNavigation="Cycle" ShowGroupPanel="False"
 AutoGenerateColumns="False"  CanUserInsertRows="False" AutoExpandGroups="True" CanUserFreezeColumns="False" RowIndicatorVisibility="Collapsed" CanUserResizeColumns="False" CanUserSortColumns="True" CanUserReorderColumns="False" 
 MinHeight="360" MaxHeight="360" MaxWidth="880" MinWidth="880"  ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.HorizontalScrollBarVisibility="Visible">
      <telerik:RadGridView.GroupRowStyle>

<Style TargetType="telerik:GridViewGroupRow">
                    <Setter Property="Background" Value="Red"/>
                    <Setter Property="BorderBrush" Value="Yellow"/>
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="{x:Type telerik:GridViewGroupRow}">
                                <telerik:RadExpander IsExpanded="True" Background="#2A5581" BorderThickness="1,1,1,1">
                                    <telerik:RadExpander.Header>
                                        <DockPanel>
                                            <Grid>
                                                <Rectangle Fill="White" Width="Auto" Margin="0,1,0,1" Stroke="Black"/>
                                                <TextBlock Text="{Binding Path=TextName}" Margin="4,0,4,0" Grid.Column="0" Grid.Row="0" Foreground="Black"/>
                                            </Grid>
                                            <Grid>
                                                <Rectangle Fill="Black" Width="Auto" Margin="0,1,0,1"/>
                                                <TextBlock Text="{Binding Path=TextName}" Margin="4,0,4,0" Foreground="White" />
                                            </Grid>
                                        </DockPanel>
                                  
                                    </telerik:RadExpander.Header>
                                    <telerik:RadExpander.Content>
                                        <ItemsPresenter/>
                                    </telerik:RadExpander.Content>
                                </telerik:RadExpander>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>

                </Style>
            </telerik:RadGridView.GroupRowStyle>
<telerik:RadGridView.Columns>
 <telerik:GridViewColumn  MaxWidth="40" MinWidth="40">

          </telerik:GridViewcolumn>
</telerik:RadGridView.Columns>
         <telerik:RadGridView.Columns>
 <telerik:GridViewColumn  MaxWidth="40" MinWidth="40">

          </telerik:GridViewcolumn>
</telerik:RadGridView.Columns>
         <telerik:RadGridView.Columns>
 <telerik:GridViewColumn  MaxWidth="40" MinWidth="40">

          </telerik:GridViewcolumn>
</telerik:RadGridView.Columns>
</telerik:RadGridView>

Howdy. I know this component is fairly new... but is there anyway to set the Add and Delete commands? Basically, they need to do things in my view model. As far as I can tell, they seem currently hard coded to actually add or remove items from the underlying collection.

I have a custom style for my connections. I set the target cap type as follows:
<Setter Property="TargetCapType" Value="Arrow1Filled" />

The result is an arrow pointing in the wrong direction, which is kind of ugly. See attached image!

How can I fix this?

Hello,

My list of data containing an image in byte [].
How I can include that image in a mail merge.
I tried using the INCLUDEPICTURE but does not work.

Is there any way?

Thanks and sorry for my English,

Jose

With the help of a sample application I found a memory leak in Richtextbox.
It just displays a Dialog with a RichTextBox and then closes the window. After closing a call to GC.Collect() is made.
If you repeat that (e.g. 15 times) than the consumed memory is growing.

Please, can you confirm it is a bug or tell me the solution?

sample project: Here

Hi everyone,

I use a RadRichText box and I need to insert a Telerik.Windows.Documents.Model.Table object(It is generated in Runtime)
into a Document, and in each cell I add a placeholder using InlineUIContainer,
so the question is how can I disable editing of my cell that contains a placeholder,
because currently all my functionality works perfect but cells are editable.

Method below initializes a TableCell instance where a placeholder is injected.

private double InitDataCell(TableCell dataCell, DynamicColumnViewModel columnVm, bool isWidth100, double percent)

{

            double cellHeight = 0;

 

            dataCell.Tag = columnVm.DynamicCellData.TableID.ToString();

 

            if (isWidth100)

            {

                dataCell.PreferredWidth = new TableWidthUnit(TableWidthUnitType.Percent, percent);

            }

            else

            {               

                dataCell.PreferredWidth = new TableWidthUnit(TableWidthUnitType.Fixed, columnVm.Width);

            }           

 

            dataCell.TextAlignment = columnVm.Alignment;

            dataCell.VerticalAlignment = RadVerticalAlignment.Center;

            var paragraph = new Paragraph();

            paragraph.TextAlignment = columnVm.Alignment;

            dataCell.Blocks.Add(paragraph);

 

            dataCell.Background = columnVm.DynamicCellData.Background;         

 

            var tb = new TextBlock

            {

                Text = columnVm.Expression,

                Tag = string.Format("{0}{1}", DynamicTableCommon.DynamicTable.TABLE_TAG_ID_PREFIX, columnVm.DynamicCellData.TableID.ToString()),

                FontSize = columnVm.DynamicCellData.FontSize,

                Background = new SolidColorBrush(columnVm.DynamicCellData.Background),

                Foreground = new SolidColorBrush(columnVm.DynamicCellData.Foreground),

                FontFamily = columnVm.DynamicCellData.FontFamily,

                FontWeight = columnVm.DynamicCellData.FontWeight,

                FontStyle = columnVm.DynamicCellData.FontStyle,

                TextDecorations = columnVm.DynamicCellData.TextDecoration

            };

 

            tb.VerticalAlignment = VerticalAlignment.Bottom;

 

            tb.HorizontalAlignment = PlaceHolderReplaceManager.ConvertRadTextAlignmentToHorAlignment(columnVm.Alignment);

 

            System.Windows.Controls.Border border = new System.Windows.Controls.Border();

            border.BorderThickness = new Thickness(0);

            border.BorderBrush = Brushes.Transparent;

            border.Background = new SolidColorBrush(columnVm.DynamicCellData.Background);           

            border.VerticalAlignment = VerticalAlignment.Center;

            border.HorizontalAlignment = HorizontalAlignment.Center;

            border.Child = tb;

 

            border.Measure(new Size(Double.PositiveInfinity, Double.PositiveInfinity));        

 

            Size s = new Size(border.DesiredSize.Width + 1, tb.DesiredSize.Height - 1);

            var uic = new DynamicCellInlineUIContainer(border, s);                         

 

            paragraph.Tag = columnVm.DynamicCellData.TableID.ToString();

            paragraph.Inlines.Add(uic);

 

            cellHeight = uic.Height + 10;

 

            return cellHeight;

 }

and another question is - In what Table property can I save my ViewModel ID(table ID) value, because when
I try to save it in a Tag property, it dissapears when I do an export my Document(contains a table with Tag initialized property) to Html using HtmlFormatProvider?

Thanks in advance.

Hello,

I'd like to show/hide a radpane following a user choice, store in my code.

When user clicks on menu "hide/show zoom"
  I set the ishidden property by program and it works.

Now, I'd like that my code boolean will be update when user close directly the radpane (x).

I use this code :
 
but, my DisplayZoom property is not setting.

Have you an idea ?
Aurore

Hi,

From what I understand the purpose of data virtualization is to only keep a finite number of records in memory at any given time.  However, while experimenting I found that the ItemsLoading event only gets called while I scroll down to the bottom of the RadGridView.  Once I am at the final row and start scrolling back up it is no longer being called.  This has led me to believe that records are not being unloaded from memory once they have been scrolled out of view.

I am wondering if I am missing something as I do not see any cache size member to set how many things to hold in memory at one time.  Any guidance on how to properly utilize the VirtualQueryableCollectionView with the RadGridView would be greatly appreciated.  The example posted is for RIA services, but we are not using RIA.

Hello,

how can I change the Style of the FilterRow e.g. to change Background and remove Borders...
It would be great if you have some XAML CodeExamples for that!

regards

Hi,

When I click on Overflow Button Inside the toolbar then it shows the remaining control which are not visible, here in this case I want to stop/disable the animation when it shows the overflow controls.
Could anyone please tell me how can I disable this animation.

Thanks,
KK