<SolidColorBrush x:Key="LegendBorderBrush"  Color="White" />
        <Thickness x:Key="LegendBorderThickness">0</Thickness>
        <Style x:Key="CustomLegendItemStyle" TargetType="telerik:ChartLegendItem">
            <Setter Property="BorderBrush"
            Value="{StaticResource LegendBorderBrush}" />
            <Setter Property="BorderThickness"
            Value="{StaticResource LegendBorderThickness}" />


            <Setter Property="Template" >
                <Setter.Value>
                    <ControlTemplate TargetType="telerik:ChartLegendItem" >
                        <Border BorderBrush="{TemplateBinding BorderBrush}"
                                BorderThickness="{TemplateBinding BorderThickness}"
                                Background="{TemplateBinding Background}">
                            <Grid x:Name="PART_MainContainer" HorizontalAlignment="Stretch" VerticalAlignment="Top" Margin="0,0,5,0"  >


                                <Path x:Name="PART_LegendItemMarker"                                 
                                  Height="20"
                                  Width="80"
                                  Style="{TemplateBinding ItemStyle}"
                                  Stretch="Fill"
                                  >
                                    <Path.Data>
                                        <PathGeometry x:Name="PART_ItemMarkerGeometry" />
                                    </Path.Data>
                                </Path>


                                <CheckBox IsChecked="True"
                                      VerticalAlignment="Center"
                                      Margin="2,0"
                                      Content="{TemplateBinding Label}"
                                      Foreground="{TemplateBinding Foreground}"                                      
                                      BorderThickness="0"
                                      Checked="CheckBox_Checked" Unchecked="CheckBox_Checked"   />


                            </Grid>
                        </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

Above code used to set the radchart legend items. I do not need to display border color for legend items. Setting white,transparant or borderthickness 0 is not helping. Please throw some light. Thanks.

Hello!

I follow the documentation and i manage to use the GridView ComboBox Column perfectly. The one issue is, I have to click three times
in order to change its value.

Since i already worked with CheckBoxColumn i follow that approach:
http://www.telerik.com/help/wpf/gridview-checkbox-column-clicks.html

I Set the "EditTriggers" property of the ComboBoxColumn to CellClick but I still need to click two times. The ComboBox Column doesn't have the AutoSelectOnEdit="True" as the CheckBoxColumn has. I realy like the ComboBoxColumn, is there a way to workaround this without creating a DataTemplate  with a Combobox?

Thank you.

Collapse All       RadControls for Wpf Number of clicks in the CheckBox column Send Feedback PROBLEM If you have a GridViewCheckBox column to your gridview you need to click three times by default in order to change the value of the checkbox - the first two clicks will enter the edit mode and the last one will change the value. The following solutions will give you options to control the number of clicks needed to change the value of the checkbox column. SOLUTION First approach 2 clicks solution By setting the EditTriggers="CellClick" property of the GridViewCheckBoxColumn the cells will enter edit mode with a single click only. Now you will need one more click to change the value of the checkbox. 1 clicks solution In addition to the EditTriggers="CellClick" property, you can set the AutoSelectOnEdit="True" property of the GridViewCheckBox column. This property will alter the checked state of the checkbox as soon as the cell enters edit mode, thus changing the value on a single click. Please note that the GridView has to be focused. This could be done in XAML or in code behind when the columns are AutoGenerated: CopyXAML <telerik:GridViewCheckBoxColumn Name="CheckBoxColumn" EditTriggers="CellClick" AutoSelectOnEdit="True" DataMemberBinding="{Binding IsChampion}" /> CopyC# private void gridView_AutoGeneratingColumn(object sender, GridViewAutoGeneratingColumnEventArgs e) { var dataColumn = e.Column as GridViewDataColumn; if (dataColumn != null) { if (dataColumn.UniqueName.ToString() == "IsChampion") { // create GridViewCheckBoxColumn GridViewCheckBoxColumn newColumn = new GridViewCheckBoxColumn(); newColumn.DataMemberBinding = dataColumn.DataMemberBinding; newColumn.Header = dataColumn.Header; newColumn.UniqueName = dataColumn.UniqueName; newColumn.EditTriggers = Telerik.Windows.Controls.GridView.GridViewEditTriggers.CellClick; newColumn.AutoSelectOnEdit = true; e.Column = newColumn; } } } CopyVB.NET Private Sub gridView_AutoGeneratingColumn(sender As Object, e As GridViewAutoGeneratingColumnEventArgs) Dim dataColumn = TryCast(e.Column, GridViewDataColumn) If dataColumn IsNot Nothing Then If dataColumn.UniqueName.ToString() = "IsChampion" Then ' create GridViewCheckBoxColumn Dim newColumn As New GridViewCheckBoxColumn() newColumn.DataMemberBinding = dataColumn.DataMemberBinding newColumn.Header = dataColumn.Header newColumn.UniqueName = dataColumn.UniqueName newColumn.EditTriggers = Telerik.Windows.Controls.GridView.GridViewEditTriggers.CellClick newColumn.AutoSelectOnEdit = True e.Column = newColumn End If End If End Sub Second approach Another approach you can use is to leverage the CellTemplate of the GridViewDataColumn and put a checkbox in it: CopyXAML <telerik:GridViewDataColumn DataMemberBinding="{Binding IsActive}" IsReadOnly="True"> <telerik:GridViewDataColumn.CellTemplate> <DataTemplate> <CheckBox IsChecked="{Binding IsActive, Mode=TwoWay}" telerik:StyleManager.Theme="Office_Black"/> </DataTemplate> </telerik:GridViewDataColumn.CellTemplate> </telerik:GridViewDataColumn> The checkbox is two-way bound to the IsActive bool property so with single click you change it. The benefit here is that the checkbox looks enabled, because it is in the CellTemplate while in the first approach the checkbox looks disabled (because the cells are not in edit mode yet). Note that the column is read-only, since this is a checkbox with two-way binding and there is no need to enter the edit mode at all. Send comments on this topic to documentation@telerik.com © 2002-2011 Telerik, All Rights Reserved.

Hi,

We are using DevExpress wpf datagrid in our projects but we came into conflict on a very critical issue. We are creating our columns dynamically in a way compliant to MVVM pattern in our project. The column headers of columns created dynamically contains date information(year and week of year) as it can be seen in unbanded.png attached. but we want the column headers to be banded according to year month week  hierarchy as it is explained in banded.png attached. I have also attached the sample code that creates the columns.

This is a very critical issue for us because most of our project's  functionality comes from Grid. If Telerik grid can give us this flexibility we will be giving back our license to DevExpress and buy Telerik licenses for developers. We are on a very critical time schedule any solid proof (based on sample) that this can be done by telerik component will lead us to change our component source. Urgent response will be appreciated.

Thanks

XAML



ViewModel

Hello Telerik team,

I am trying to bind my RowHeight property on the RadTreeListView to the FontSize. 

The reason I am doing this is that the user can change the FontSize at the application level using a setting on the menu and setting the RowHeight=20 (lets say) works for small fonts, but as the user increases the FontSize, the RowHeight hard set to 20 does not work well anymore as the content overflows

Any ideas on how to adjust the RowHeight property based on the FontSize property?

Thanks,
Kumar

Hello,
I'm using Entity Framework to provide data to the treeview and I have a tree like this:

<CollectionViewSource x:Key="categoriesViewSource" d:DesignSource="{d:DesignInstance Model:Category, CreateList=True}" />

Assigning DataContext and so on, so everything works fine and correctly displays hierarchical data.

<telerik:RadTreeView HorizontalAlignment="Stretch" IsEditable="True" 
                                     ItemsSource="{Binding}" 
                                     Name="CategoryTreeView" 
                                     VerticalAlignment="Stretch" 
                                         SelectionChanged="CategoryTreeView_OnSelectionChanged" 
                                         KeyUp="CategoryTreeView_KeyUp"
                                         Edited="CategoryTreeView_Edited">
                        <telerik:RadTreeView.ItemEditTemplate>
                            <DataTemplate>
                                <TextBox Text="{Binding Name, Mode=TwoWay}"/>
                            </DataTemplate>
                        </telerik:RadTreeView.ItemEditTemplate>
                        <telerik:RadTreeView.ItemTemplate>
                            <HierarchicalDataTemplate ItemsSource="{Binding Subcategories}">
                                <TextBlock Text="{Binding Name}" />
                            </HierarchicalDataTemplate>
                        </telerik:RadTreeView.ItemTemplate>
                    </telerik:RadTreeView>

And I want to add root category programmatically. This is what I do:

Category parent = CategoryTreeView.SelectedItem == null 
                    ? null 
                    : _context.Categories.FirstOrDefault(
                            c => c.CategoryID == ((Category) CategoryTreeView.SelectedItem).CategoryID);
            
            Category newCategory = new Category
                                       {
                                           Name = "New category",
                                           ParentCategory = parent,
                                           ParentID = parent == null ? (Guid?) null : parent.CategoryID
                                       };
            _context.Categories.AddObject(newCategory);

Everything also works fine and child items are inserting to selected node. Works until I try to add a root node. When no selected item is available, this code won't work. New category adds to collection but never displays on tree. Can you please help me?
Thank you.

Hi,
  I need to create GridView with Header & other rows with rounded corners with shadow effect to it & also its should be flexible for all resolution. Please find the attached image for the requirement.

Thank U
Selva

I have the need to extend the DatePicker. I try to do this as I have done when I have extended the standard WPF controls (e.g. TextBox), but I have some problems. I can't make my extended control use its own template.

The control has this code:

Then I have a folder in the root called "Themes" which contains a file called "Generic.xaml". This XAML file contains the template that i want to apply to the control:

But the template is never applied. Instead the default template for the DatePicker is used, and I don't now how to replace this with my own...

So the question is: How can I make my custom control inheriting from DatePicker use a custom template?

Hello,

Right now my grid is as this image shows: http://j.mp/xyQpwB, but I want to apply the color to all the "black bar".

I have the following code:

<Window x:Class="WpfApplication2.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        Title="MainWindow"

        Height="350"

        Width="525"

        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation">

    <Window.Resources>

        <SolidColorBrush x:Key="GridView_HeaderBackground"  Color="LightBlue" />

        <Style TargetType="telerik:GridViewHeaderCell">

            <Setter Property="Background" Value="{StaticResource GridView_HeaderBackground}"/>

        </Style>

    </Window.Resources>

    <Grid>

        <telerik:RadGridView

            Name="radGridView1"

            ShowGroupPanel="False"

            RowIndicatorVisibility="Collapsed"

            >

            <telerik:RadGridView.Columns>

                <telerik:GridViewDataColumn

                    Header="One"

                    Width="100"

                    />

            </telerik:RadGridView.Columns>         

        </telerik:RadGridView>

    </Grid>

</Window>

How can I achieve this?

Thanks,
Joan

Hello
   I'm using RadGridView with RadContextMenu and commads. How can I determine which item/which row got the click for the context menu?

Hi, I have a chart in a view that I would like to use to display 3 different types of data in different instances of the view ...so in one instance the view may be displayed to show Commission and in another  scenario the view may be used to display "Volume"  etc... I have one view which represents the chart and a view model that is used to define the data item to display (among other things) ...I would basically like to set one of the item mappings at runtime (but obviously I am using MvvM).

This is my series definition

                        <telerik:SeriesMapping>
                            <telerik:SeriesMapping.SeriesDefinition>
                                <telerik:PieSeriesDefinition 
                                    LegendDisplayMode="DataPointLabel"
                                    ShowItemLabels="False" 
                                    ShowItemToolTips="True">
                                    <telerik:PieSeriesDefinition.Appearance>
                                        <telerik:SeriesAppearanceSettings ></telerik:SeriesAppearanceSettings>
                                    </telerik:PieSeriesDefinition.Appearance>
                                </telerik:PieSeriesDefinition>
                            </telerik:SeriesMapping.SeriesDefinition>
                            <telerik:ItemMapping DataPointMember="YValue" FieldName="Commission" />
                            <telerik:ItemMapping DataPointMember="LegendLabel" FieldName="Symbol" />
                        </telerik:SeriesMapping>

and I was hoping to be able to do this (where the DataFieldName would be set in the view model depending on what that particular view instance should show  

<telerik:ItemMapping DataPointMember="YValue" FieldName="{Binding ElementName=radChart1, Path=DataContext.DataFieldName}" />

I get an error in Visual Studio, something about a null value. I have tried a number of  options for the binding but it doesn't seem to work so maybe it's not possible 


My question is should I be able to do this and if not do you have any suggestions on how to achieve what I am trying to do.

Thanks in advance