How do TabControl like this
TabControl
I want to make the options tab, which is located on the bottom left
but dont know how to change the position of the title for Tab2
<Grid>
<TabControl TabStripPlacement="Left">
<TabControl.Resources>
<Style TargetType="TabItem">
<Setter Property="Height" Value="50" />
<Setter Property="Width" Value="50" />
</Style>
</TabControl.Resources>
<TabItem>
<TabItem.Header>
<TextBlock Text="Tab1" />
</TabItem.Header>
<TabItem.Content>
<TextBlock Text="Tab1 content" />
</TabItem.Content>
</TabItem>
<TabItem>
<TabItem.Header>
<TextBlock Text="Tab2" />
</TabItem.Header>
<TabItem.Content>
<TextBlock Text="Tab2 content" />
</TabItem.Content>
</TabItem>
</TabControl>
</Grid>
The easiest solution is to insert a invisible dummy TabItem whose height matches the gap before the last TabItem.
<TabItem Visibility="Hidden"/>
You can set its height in designer or at run time by the following method.
void SetDummyTabItemHeight(TabItem dummyItem)
{
var tabPanel = (TabPanel)VisualTreeHelper.GetParent(dummyItem);
var otherItemsActualHeight = tabPanel.Children
.Cast<TabItem>()
.Where(x => x != dummyItem)
.Sum(x => x.ActualHeight);
dummyItem.Height = tabPanel.ActualHeight - otherItemsActualHeight;
}
Related
At the moment my grid is changing to Autogenerate columns so I cannot predefine the column style. I'm wondering how abouts do I set a style trigger for a column based on header value.
Working code with predefined columns with AutoGenerateColumns="True"
<telerik:GridViewColumn Header="Test">
<telerik:GridViewColumn.CellEditTemplate>
<DataTemplate x:Key="ToggleDataTemplate">
<telerik:RadToggleButton Content="+" Width="20" Height="20"
HorizontalContentAlignment="Center"
VerticalContentAlignment="Center"/>
</DataTemplate>
</telerik:GridViewColumn.CellEditTemplate>
</telerik:GridViewColumn>
What I've tried with AutoGenerateColumns="False"
<telerik:RadGridView.Resources>
<Style TargetType="telerik:GridViewColumn">
<Style.Triggers>
<Trigger Property="Header" Value="Test">
<Setter Property="CellTemplate" Value="{StaticResource ToggleDataTemplate}" />
<Setter Property="CellEditTemplate" Value="{StaticResource ToggleDataTemplate}" />
</Trigger>
</Style.Triggers>
</Style>
</telerik:RadGridView.Resources>
<DataTemplate x:Key="ToggleDataTemplate">
<telerik:RadToggleButton Content="+" Width="20" Height="20"
HorizontalContentAlignment="Center"
VerticalContentAlignment="Center"/>
</DataTemplate>
With what I tried above, the cell remains blank. How abouts do I get the button to appear dynamically?
You should be able to handle the AutoGeneratingColumn event and set the CellEditTemplate of all columns programmatically:
<telerik:RadGridView x:Name="grid" AutoGeneratingColumn="grid_AutoGeneratingColumn">
<telerik:RadGridView.Resources>
<DataTemplate x:Key="ToggleDataTemplate">
<telerik:RadToggleButton Content="+" Width="20" Height="20"
HorizontalContentAlignment="Center"
VerticalContentAlignment="Center"/>
</DataTemplate>
</telerik:RadGridView.Resources>
</telerik:RadGridView>
private void grid_AutoGeneratingColumn(object sender, Telerik.Windows.Controls.GridViewAutoGeneratingColumnEventArgs e)
{
e.Column.CellEditTemplate = grid.Resources["ToggleDataTemplate"] as DataTemplate;
}
My customer developing a property editor of sorts that contains multiple property sections that are presented as WPF Expanders with Datagrids contained within. We have everything laid out in a WPF Grid, currently with auto sized rows.
The problem we're trying to solve is proportional sizing of each property section when the screen height changes. When expanders are opened they should take up a proportional amount of space with vertical scrollbars kicking automatically when needed. When they are closed they should collapse and give the remaining space to the remaining sections.
In real life we have 4 expanders with content. The first one is a fixed height, the remaining three are Lists and DataGrids that need to size proportionally with the last one getting the largest portion of the remaining space. Keep in mind, users might resize the screen, or users might be running in different screen resolutions, so we need it to react accordingly.
We've tried messing with the DataGrid RowDefinition Height (fixed, proportional and auto) and MaxHeight, and also the MaxHeight of each datagrid, but I can't seem to find a combination that causes the whole area to be consumed when needed. We're researching a code based solution, but we're curious what others may suggest.
Here's a simple code sample that will give you the layout we're after. We just need it to work as described above.
Here's The Code (this would be a view model in real world)
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
datagrid1.DataContext = GetCustomerVM();
datagrid2.DataContext = GetCustomerVM();
datagrid3.DataContext = GetCustomerVM();
}
private List<Customer> GetCustomerVM()
{
var CustomerList = new List<Customer>();
CustomerList.Add(new Customer() { FirstName = "A" });
CustomerList.Add(new Customer() { FirstName = "A" });
CustomerList.Add(new Customer() { FirstName = "A" });
CustomerList.Add(new Customer() { FirstName = "A" });
CustomerList.Add(new Customer() { FirstName = "A" });
CustomerList.Add(new Customer() { FirstName = "A" });
CustomerList.Add(new Customer() { FirstName = "A" });
CustomerList.Add(new Customer() { FirstName = "A" });
return CustomerList;
}
}
public class Customer
{
public string FirstName { get; set; }
}
The XAML
<Window x:Class="StackOverflow_SidePanelGridScrolling.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:StackOverflow_SidePanelGridScrolling"
mc:Ignorable="d"
Loaded="Window_Loaded"
Title="MainWindow" Height="500" Width="300">
<Window.Resources>
<DataTemplate x:Key="ExpanderHeaderTemplate">
<DockPanel Height="30">
<TextBlock Margin="4,0,0,0"
VerticalAlignment="Center"
DockPanel.Dock="Left"
FontSize="16"
Text="{Binding}" />
</DockPanel>
</DataTemplate>
<Style TargetType="Expander">
<Setter Property="HeaderTemplate"
Value="{StaticResource ExpanderHeaderTemplate}" />
</Style>
</Window.Resources>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Expander x:Name="expander1" Grid.Row="0" Header="Area 1">
<DataGrid Name="datagrid1"
ItemsSource="{Binding}" AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridTextColumn Header="First Name"
Binding="{Binding FirstName}"
Width="100*" />
</DataGrid.Columns>
</DataGrid>
</Expander>
<Expander x:Name="expander2" Grid.Row="1" Header="Area 2">
<DataGrid Name="datagrid2"
ItemsSource="{Binding}" AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridTextColumn Header="First Name"
Binding="{Binding FirstName}"
Width="100*" />
</DataGrid.Columns>
</DataGrid>
</Expander>
<Expander x:Name="expander3" Grid.Row="3" Header="Area 3">
<DataGrid Name="datagrid2"
ItemsSource="{Binding}" AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridTextColumn Header="First Name"
Binding="{Binding FirstName}"
Width="100*" />
</DataGrid.Columns>
</DataGrid>
</Expander>
</Grid>
</Window>
As far as I'm able to understand your requirements, I think this does about what you want:
Every expander, when not expanded, takes up whatever minimal space it requires.
The top row, when expanded, is sized to its content.
Rows two, three, and four divide up the remainder of the space. When expanded, they stretch. Two gets one share of the available space, Three gets two shares, Four gets three shares. If Two and Three are open, Two gets one of four shares and Three gets the other three.
Those shares are handed out by the * Height values in the setters in the triggers. Here's the trigger for Row Four:
<DataTrigger
Binding="{Binding Children[3].IsExpanded, RelativeSource={RelativeSource AncestorType=Grid}}"
Value="True"
>
<Setter Property="Height" Value="3*" />
</DataTrigger>
The nice thing about doing this in XAML is that it will never spring any ugly surprises on you.
So here's the XAML:
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition>
<RowDefinition.Style>
<Style TargetType="RowDefinition">
<Setter Property="Height" Value="Auto" />
<Style.Triggers>
<DataTrigger
Binding="{Binding Children[1].IsExpanded, RelativeSource={RelativeSource AncestorType=Grid}}"
Value="True"
>
<Setter Property="Height" Value="1*" />
</DataTrigger>
</Style.Triggers>
</Style>
</RowDefinition.Style>
</RowDefinition>
<RowDefinition>
<RowDefinition.Style>
<Style TargetType="RowDefinition">
<Setter Property="Height" Value="Auto" />
<Style.Triggers>
<DataTrigger
Binding="{Binding Children[2].IsExpanded, RelativeSource={RelativeSource AncestorType=Grid}}"
Value="True"
>
<Setter Property="Height" Value="2*" />
</DataTrigger>
</Style.Triggers>
</Style>
</RowDefinition.Style>
</RowDefinition>
<RowDefinition>
<RowDefinition.Style>
<Style TargetType="RowDefinition">
<Setter Property="Height" Value="Auto" />
<Style.Triggers>
<DataTrigger
Binding="{Binding Children[3].IsExpanded, RelativeSource={RelativeSource AncestorType=Grid}}"
Value="True"
>
<Setter Property="Height" Value="3*" />
</DataTrigger>
</Style.Triggers>
</Style>
</RowDefinition.Style>
</RowDefinition>
</Grid.RowDefinitions>
<Expander
Grid.Row="0"
VerticalAlignment="Stretch"
Header="One" Background="LightGreen">
<StackPanel>
<Label>Content One</Label>
<Label>Content One</Label>
<Label>Content One</Label>
</StackPanel>
</Expander>
<Expander
Grid.Row="1"
VerticalAlignment="Stretch"
Header="Two" Background="LightSkyBlue">
<StackPanel>
<Label>Content Two</Label>
<Label>Content Two</Label>
<Label>Content Two</Label>
</StackPanel>
</Expander>
<Expander
Grid.Row="2"
VerticalAlignment="Stretch"
Header="Three" Background="LightGoldenrodYellow">
<StackPanel>
<Label>Content Three</Label>
<Label>Content Three</Label>
<Label>Content Three</Label>
</StackPanel>
</Expander>
<Expander
Grid.Row="3"
VerticalAlignment="Stretch"
Header="Four" Background="Khaki">
<StackPanel>
<Label>Content Four</Label>
<Label>Content Four</Label>
<Label>Content Four</Label>
</StackPanel>
</Expander>
</Grid>
These don't show scrollbars because I didn't take the time to create content that will scroll.
i have a WPF DataGrid with a GroupStyle
<DataGrid.GroupStyle>
<GroupStyle>
<GroupStyle.ContainerStyle>
<Style TargetType="{x:Type GroupItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type GroupItem}">
<Expander IsExpanded="True">
<Expander.Header>
<StackPanel>
<TextBlock Text="{Binding Path=citta}" Margin="5,0,0,0" Width="100" FontWeight="Bold"/>
<TextBlock Text="{Binding Path=ItemCount}" />
</StackPanel>
</Expander.Header>
<Expander.Content>
<ItemsPresenter />
</Expander.Content>
</Expander>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</GroupStyle.ContainerStyle>
</GroupStyle>
</DataGrid.GroupStyle>
code behind:
var qq = (from a in q select new { formareg = a.Get("formareg"), citta = a.Get("citta"), conteggio = a.Get("conteggio"), parametro = a.Get("idcitta").ToString() + "|" + a.Get("formareg") }).OrderBy(x => x.citta).ToList();
ListCollectionView cv = new ListCollectionView(qq);
cv.GroupDescriptions.Add(new PropertyGroupDescription("citta"));
GrigliaDati.ItemsSource = cv;
All works fine but in Header of each group i see only ItemCount and not Path=citta.
What's wrong??
Same as my earlier answer to this question, it's because you bind to wrong field. You need to bind to group name and not to the field you group by. Try somethink like this:
<TextBlock Text="{Binding Path=Name}">
Each group is a CollectionViewGroup and it has its own properties that you can use when specifying group header.
I have a listview for which i have implemented grouping and have defined an expander inside the groupstyle as shown below :
<ListView.GroupStyle>
<GroupStyle>
<GroupStyle.ContainerStyle>
<Style TargetType="{x:Type GroupItem}">
<Setter Property="Margin" Value="0,0,0,5"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type GroupItem}">
<Expander IsExpanded="True" >
<Expander.Header>
<DockPanel>
<TextBlock FontWeight="Bold" Text="{Binding Path=Name}" Margin="5,0,0,0" Width="100"/>
<TextBlock FontWeight="Bold" Text="{Binding Path=ItemCount}"/>
<TextBlock FontWeight="Bold" Text=" Items"/>
</DockPanel>
</Expander.Header>
<Expander.Content>
<ItemsPresenter />
</Expander.Content>
</Expander>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</GroupStyle.ContainerStyle>
</GroupStyle>
</ListView.GroupStyle>
I want to modify the expander such that only one is expanded and the rest are collapsed if more than one are there and also if i want to programmatically expand any one of the expanders i.e. suppose i add an object from cs and want to show that expander opened, it should be possible, any suggestions ??
Thanks in advance
Edit : The code to bind the listview and the group :
CollectionViewSource viewSource = new CollectionViewSource { Source = TO_DOlst };
viewSource.GroupDescriptions.Add(new PropertyGroupDescription("timeCategory"));
lstView.ItemsSource = viewSource.View;
timecategory is a member of the class
You can Bind IsExpanded property by creating a boolean property in your class just like Name and define all Business rules in CS directly.
if(ItemsSource.Count() > 1)
//set IsExpanded = false;
else
// set only first item and so on.
Regards.
I have a problem.
In my WPF application, if i press a tabItem with middle mouse button, this tabItem should close. Just like in FireFox.
But I try to do this using MVVM, and i need to use commands. Also my tabItems are created dynamically.
Help me plz!
Thank you!
Create a DataTemplate for your tab items like this:
<DataTemplate x:Key="ClosableTabTemplate">
<Border>
<Grid>
<Grid.InputBindings>
<MouseBinding Command="ApplicationCommands.Close" Gesture="MiddleClick" />
</Grid.InputBindings>
<!-- the actual contents of your tab item -->
</Grid>
</Border>
</DataTemplate>
In your application window, add a the close command
<Window.CommandBindings>
<CommandBinding Command="ApplicationCommands.Close" Executed="CloseCommandExecuted" CanExecute="CloseCommandCanExecute" />
</Window.CommandBindings>
and finally assign the data template as item template to your tab control.
You could add a MouseBinding to some InputBindings perhaps?
Closing a TabItem (Not Selected) - TabControl
<TabControl x:Name="TabControlUser" ItemsSource="{Binding Tabs}" Grid.RowSpan="3">
<TabControl.Resources>
<Style TargetType="TabItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="TabItem">
<Border Name="Border" BorderThickness="1,1,1,0" BorderBrush="Gainsboro" CornerRadius="4,4,0,0" Margin="2,0">
<ContentPresenter x:Name="ContentSite"
VerticalAlignment="Center"
HorizontalAlignment="Center"
ContentSource="Header"
Margin="10,2"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter TargetName="Border" Property="Background" Value="LightSkyBlue" />
</Trigger>
<Trigger Property="IsSelected" Value="False">
<Setter TargetName="Border" Property="Background" Value="GhostWhite" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</TabControl.Resources>
<TabControl.ItemTemplate>
<!-- this is the header template-->
<DataTemplate>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding Header}" FontWeight="ExtraBold" VerticalAlignment="Center" HorizontalAlignment="Center"/>
<Image Source="/Images/RedClose.png" Width="22" Height="22" MouseDown="Image_MouseDown" HorizontalAlignment="Right" Margin="10 0 0 0"/>
</StackPanel>
</DataTemplate>
</TabControl.ItemTemplate>
<TabControl.ContentTemplate>
<!-- this is the body of the TabItem template-->
<DataTemplate>
<UserControl Content="{Binding UserControl, UpdateSourceTrigger=PropertyChanged}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>
</DataTemplate>
</TabControl.ContentTemplate>
</TabControl>
C# Code - Image MouseDown Click Event
try
{
int matches = 0;
DependencyObject dependency = (DependencyObject)e.OriginalSource;
// Traverse the visual tree looking for TabItem
while ((dependency != null) && !(dependency is TabItem))
dependency = VisualTreeHelper.GetParent(dependency);
if (dependency == null)
{
// Didn't find TabItem
return;
}
TabItem selectedTabItem = dependency as TabItem;
var selectedTabContent = selectedTabItem.Content as MainWindowViewModel.TabItem;
foreach (var item in MainWindowViewModel.Tabs)
{
if (item.Header == selectedTabContent.Header)
{
matches = MainWindowViewModel.Tabs.IndexOf(item);
}
}
MainWindowViewModel.Tabs.RemoveAt(matches);
}
catch (Exception ex)
{
System.Windows.Application.Current.Dispatcher.Invoke((System.Action)(() => new View.MessageBox(ex.Message).ShowDialog()));
}
This event finds with the exact Mouse clicked position (as TabItem)and this will remove
MainWindowViewModel.Tabs.RemoveAt(matches); the TabItem(even if it is not selected).