ListView Grid.Row="3" x:Name="lstDetail" HorizontalAlignment="Center" ItemContainerStyle="{StaticResource ListViewItemContainerStyle}" SelectionMode="None"> -->
above is the XAML code. I want to get foreground color and
and id.
like = StackPanel cluster = sender as StackPanel;
cluster_id = cluster.Tag.ToString();
Related
I have a simple listbox that loads items (in my test case 135).
I logged all the ID's of the items that are loaded, and they all have a unique ID. The listbox datatemplate is a usercontrol, so in the usercontrol I also logged the ID's to see which ones are loaded.
Now is where it starts going wrong, it only loads about the first 10 items (I think whatever is initially visible), and then keeps repeating those first items over and over again. So instead of 135 unique objects, I have 135 objects that are one of the first 10 or so loaded.
You can see the logging here (there are a lot more ID's not visible):
After the User Control ID's line, that's the only ID's it loads and keeps looping those 10 ID's until there are 135 items in the listbox.
This is the full page code
<Style x:Key="ListBoxItemStyle1" TargetType="ListBoxItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListBoxItem">
<Border x:Name="LayoutRoot" BorderThickness="3">
<ContentControl x:Name="ContentContainer"
VerticalContentAlignment="Top"
HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
Foreground="{TemplateBinding Foreground}" />
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Page.Resources>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition></RowDefinition>
</Grid.RowDefinitions>
<SearchBox x:Name="sbSearch" QuerySubmitted="sbSearch_QuerySubmitted" Margin="12,12,12,0"></SearchBox>
<ListBox x:Name="lbResults" Grid.Row="1" ItemContainerStyle="{StaticResource ListBoxItemStyle1}" Background="{x:Null}">
<ListBox.ItemTemplate>
<DataTemplate>
<userControls:WantlistItem Tag="{Binding}"></userControls:WantlistItem>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</Grid>
What am I doing wrong?
Edit1: Loading of listbox in main page
private void Page_Loaded(object sender, RoutedEventArgs e)
{
if(Variables.WantsAll == null) Helpers.GetWantList();
foreach (var v in Variables.WantsAll)
{
Debug.WriteLine(v.id);
}
Debug.WriteLine("--- USER CONTROL ID's ---");
lbResults.ItemsSource = Variables.WantsAll;
}
In the UserControl Page_Loaded I'm logging them as well.
In this screenshot you can see I scrolled down, and it starts repeating the same items again (sometimes it messes up, as you can see the first item is not correctly repeated, it's a different one).
Note that in front of the names I added the ID's it prints out, you can see it's repeating the same ID's (for example the green album: 1301162), even tho in the list I set as ItemsSource it only exists once (all items are unique).
The comment provided by Jay Zuo - MSFT provided the solution, the answer in this thread solved my problem exactly.
how to take value of tapped column/bar of winrt xaml column series chart.
i want to open other chart using the value of each bar..
my code is:
<Charting:Chart x:Name="chart" Title="My Performance" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="0,0,0,0" Width="895" Height="548" Foreground="Black" FontSize="10" >
<Charting:ColumnSeries x:Name="mychart" Padding="10" BorderThickness="5" BorderBrush="#FF233083" Background="Yellow" IndependentValuePath="TestCode" DependentValuePath="Percentage" IsSelectionEnabled="True" Margin="0,0,0,4" Tapped="mychart_Tapped" >
i didn't get values from selecteditem thanks........
Let say that we have the above xaml in wp7 platform:
<controls:Panorama x:Name="MainPanorama">
<controls:PanoramaItem x:Name="Panorama1" TabIndex="1">
<controls:PanoramaItem.Header>
<StackPanel Orientation="Vertical" Margin="12,70,0,-30">
<TextBlock x:Name="Header1" Text="Downloader" FontSize="50" Margin="-5,-70,0,0" />
</StackPanel>
</controls:PanoramaItem.Header>
///////////////////////////////
other xaml code like grids and other
</controls:PanoramaItem>
///////////////////////////////
other xaml code like PanoramaItems
</controls:Panorama>
How can i get the TextBlock.Text (string) of Header1, notice that i want something dynamically as i have many PanoramaItems and i want to get header of every PanoramaItem dynamically like an array of MainPanorama.
I have tried this:
PanoramaItem gen_panorama = MainPanorama.SelectedItem as PanoramaItem;
gen_panorama_head = Convert.ToString(gen_panorama.Header);
but there is no Header as the header is in template of every PanoramaItem, how can i get this?
I found the solution with 'Binding' header data template!
<controls:Panorama x:Name="MainPanorama">
<controls:Panorama.HeaderTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical" Margin="12,70,0,-30">
TextBlock Text="{Binding}" FontSize="50" Margin="-12,-70,0,0" HorizontalAlignment="Left" Foreground="Black" />
</StackPanel>
</DataTemplate>
</controls:Panorama.HeaderTemplate>
<controls:PanoramaItem Header="Here any we want" x:Name="Panorama1" TabIndex="1">
</controls:PanoramaItem>
</controls:Panorama>
I have a list of items bound to a GridView. The list contains multiple types of data. I use an ItemTemplateSelector to apply a DataTemplate to the different data types so they each have a unique look and feel.
I'm at a loss for how to remove the hover over effect of the GridViewItem in the DataTemplate for SubClass1 without DataTriggers.
public class Base
{
public string Name {get;set;}
}
public class SubClass1 : Base
{
}
public class SubClass2 : Base
{
}
public PageViewModel : ViewModelBase
{
public List<Base> ListOfBases {get;set;}
}
<GridView
x:Name="baseGridView"
ItemsSource="{Binding ListOfBases}"
ItemTemplateSelector="{StaticResource itemsTemplateSelector}"
SelectionMode="Multiple"
IsSwipeEnabled="false"
IsItemClickEnabled="True"
>
<DataTemplate x:Key="SubClass1Template">
<Grid Margin="0" Width="346" VerticalAlignment="Stretch" >
<TextBlock Grid.Column="0" Text="{Binding Name}" />
</Grid>
</DataTemplate>
You will need to edit the VisualState styles of the GridViewItem. To do this right click on the GridView within within VisualStudio or Blend. Do this within the Design view or the Document outline. Select Edit Additional Template -> Edit Generated Item Container (ItemContainerStyle) -> Edit a Copy
If you want to remove it completely, the remove the elements within the PointerOver state
<VisualState x:Name="PointerOver"/>
You can use this to make any changes to it as well. Maybe you do not like the default hover color, but like another, here is where you would make those changes.
UPDATE Based on comment
To only have the hover style for a certain class, set the Visibility of the controls used for the hover style (eg: a border) to bind directly to the class. Then a ValueConverter would return Visible or Collapsed based on the type of the class
I have a control that I create hundreds of times during the application.
I have noticed that my app freezes because in the Initializecomponent function,
there is
System.Windows.Application.LoadComponent(this, new System.Uri("/fa;component/Controls/Common/Popup/PopupItem.xaml", System.UriKind.Relative));
if I comment this out, the application runs smoothly (of course without the control rendered).
How can I avoid/increase performance so the XAML won't be loaded each time, but somehow to recycle the control??
for (int i = 5; i < colValues.Count; i++)
{
if (colValues[i].Count == "1")
continue;
PopupItem pi = new PopupItem(colValues[i], false, this, FilterCategorySearch.PopupContent);
FilterCategorySearch.PopupContent.spItemsContainer.Children.Add(pi);
}
and the XAML is
<UserControl x:Class="FacetedSearch.Controls.Common.Popup.PopupItem"
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:FacetedSearch.Controls.Common"
mc:Ignorable="d">
<UserControl.Resources>
<SolidColorBrush x:Key="TextNormalBrush" Color="#FF656565"/>
<SolidColorBrush x:Key="TextHoverBrush" Color="#FFA39F9F"/>
</UserControl.Resources>
<StackPanel MouseEnter="LayoutRoot_MouseEnter" MouseLeave="LayoutRoot_MouseLeave" Orientation="Horizontal" Margin="0,4,0,0">
<local:CTLCheckBox x:Name="cbFilter" MouseLeftButtonUp="cbFilter_MouseLeftButtonUp" Cursor="Hand" Height="14" Width="10" Margin="4,0" />
<TextBlock x:Name="tbFilterName" Foreground="{StaticResource TextNormalBrush}" MouseLeftButtonUp="tbFilterName_MouseLeftButtonUp" TextWrapping="Wrap" FontFamily="Arial" Margin="0,0,4,0" Cursor="Hand"/>
<TextBlock x:Name="tbFilterCount" TextWrapping="Wrap" Foreground="{StaticResource TextNormalBrush}" FontFamily="Arial"/>
</StackPanel>
thanks
The xaml for UserControls is parsed by Silverlight for every new instance of the UserControl. This means that if you add 100 instances of the same UserControl, the xaml will be read, parsed, instantiated as objects then visual objects 100 times.
You have 2 possibilities:
Access your UserControl from another location by referencing it from within a DataTemplate (used by means of, say, a ContentControl)
Rewrite your UserControl to be a "real" control (i.e. a sublass of Control or ContentControl)