findancestor

Setting style based on existence of an ancestor type

由 左心房为你撑大大i 提交于 2019-12-19 19:46:04
问题 I have 2 sets of textblocks some of them are in an itemcontrol and some of them are not, I want to make an style (just based on type) which sets the background of the textblock if its ancestor is an ItemControl. I can do it by the following code but the problem is that on the log (and output window) a data biding error message will be displayed because of the textblocks which do not have Itemcontrol as ancestore. Is there any better way to do this task and avoid this error message? <Grid>

FindAncestor implementation in WP8 ListBox

由 落花浮王杯 提交于 2019-12-11 07:19:17
问题 I want to implement a Listbox binding directly and here is the code i used in WPF syntax <ListBox Name="lboxData" ItemsSource="{Binding}"> <ListBox.ItemTemplate > <DataTemplate> <StackPanel> <ToggleButton x:Name="toggleChild" Style="{StaticResource ChapterHeadingStyle}" IsChecked="{Binding IsSelected, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ListBoxItem}}}" // This is what i have to change . I want to set it based on the status of the ListBoxItem & Given code is

Why is FindAncestor binding not working in GridViewColumn?

由 天大地大妈咪最大 提交于 2019-12-11 03:18:13
问题 I'm trying to create my own GridViewColumn and having some issus with binding. Can someone explain to me why the following Header-binding does work <GridViewColumn x:Class="interneProzesse_UebersetzungstoolNS.TranslateGridViewColumn" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:conv

Setting style based on existence of an ancestor type

由 回眸只為那壹抹淺笑 提交于 2019-12-01 17:51:13
I have 2 sets of textblocks some of them are in an itemcontrol and some of them are not, I want to make an style (just based on type) which sets the background of the textblock if its ancestor is an ItemControl. I can do it by the following code but the problem is that on the log (and output window) a data biding error message will be displayed because of the textblocks which do not have Itemcontrol as ancestore. Is there any better way to do this task and avoid this error message? <Grid> <Grid.Resources> <local:HasAncestorConverter x:Key="HasAncestorConverter" /> <Style TargetType="TextBlock"

What exactly does WPF Data Binding's “RelativeSource FindAncestor” do?

由 情到浓时终转凉″ 提交于 2019-11-30 04:44:24
I am currently working within a WPF user control (the root element of my XAML file is "UserControl"), which I know is being hosted inside a Window. How can I access a property of the Window using data binding? Does anyone know why simply <Binding RelativeSource="{RelativeSource FindAncestor, AncestorType={x:Type Window}}" Path="..." /> does not work? The error message I get is: System.Windows.Data Warning: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Window', AncestorLevel='1''. Edit: I ended up using a variation on ArsenMkrt's

What exactly does WPF Data Binding's “RelativeSource FindAncestor” do?

由 ℡╲_俬逩灬. 提交于 2019-11-29 02:38:46
问题 I am currently working within a WPF user control (the root element of my XAML file is "UserControl"), which I know is being hosted inside a Window. How can I access a property of the Window using data binding? Does anyone know why simply <Binding RelativeSource="{RelativeSource FindAncestor, AncestorType={x:Type Window}}" Path="..." /> does not work? The error message I get is: System.Windows.Data Warning: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor,
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