xamlreader

XamlReader with Click Event

由 ▼魔方 西西 提交于 2021-02-07 10:44:55
问题 I am using XamlReader in my WPF project. And it works (My reference) My current sample Xaml is like that: <Grid xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" Width="800" Height="600"> <Button Name="Test1" Content="Test1" Width="357" Height="88" Margin="14,417,0,0" ></Button> <Button Name="Test2" Content="Test2" Width="357" Height="88" Margin="14,529,0,0" ></Button> </Grid> and adding button's click event like this: button = LogicalTreeHelper.FindLogicalNode(rootObject,

Give a name and declare event handler of a button Created at run time with C# XamlReader

由 冷暖自知 提交于 2021-02-05 09:43:44
问题 I am working on a project in C# and WPF that dynamically creates a grid layout that has some text, an image, and a button. I create many of these grids, and add them to a stack panel. I create this grid using the XamlReader.Create() function. Here is the whole code, and i apologize that the Xaml code is so long string xaml = "<Grid Height='92' Margin='0,10,0,0' xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'>"+ "<Grid.Background>"+ "<LinearGradientBrush EndPoint='0.5,1'

Using Events/Commands with XamlReader

由 丶灬走出姿态 提交于 2020-01-21 12:08:13
问题 I am dynamically building my datatemplate using XamlReader.Parse(string). The problem I have is that I can't put any events on any of the controls I create using the XamlReader. After doing some research online I've learned that this is a known limitation of XamlReader. I don't know a lot about commands in WPF but could I somehow use them to gain the same result? If so how? If not is there any way I can handle an event in my code behind from a control created using Xaml Reader? Below is an

Using XamlReader for controls that does not have a default constructor

由 ╄→尐↘猪︶ㄣ 提交于 2020-01-11 09:57:12
问题 I have some string representations of Xaml objects, and I want to build the controls. I'm using the XamlReader.Parse function to do this. For a simple control such as Button that has a default constructor not taking any parameters this works fine: var buttonStr = "<Button xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\">Text</Button>"; var button = (Button)XamlReader.Parse(buttonStr); However, when I try to do this to e.g. a Stroke control it fails. First trying a simple

Using XamlReader for controls that does not have a default constructor

由 依然范特西╮ 提交于 2020-01-11 09:57:04
问题 I have some string representations of Xaml objects, and I want to build the controls. I'm using the XamlReader.Parse function to do this. For a simple control such as Button that has a default constructor not taking any parameters this works fine: var buttonStr = "<Button xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\">Text</Button>"; var button = (Button)XamlReader.Parse(buttonStr); However, when I try to do this to e.g. a Stroke control it fails. First trying a simple

Problems with XamlReader generating DataTemplate

由 别等时光非礼了梦想. 提交于 2019-12-30 19:52:08
问题 I'm trying to implement the code below in my WPF project in order to generate DataTemplates on the fly for a DataGrid with dynamic columns. I found the code on StackOverflow here public DataTemplate Create(Type type) { return (DataTemplate)XamlReader.Load( @"<DataTemplate xmlns=""http://schemas.microsoft.com/client/2007""> <" + type.Name + @" Text=""{Binding " + ShowColumn + @"}""/> </DataTemplate>" ); } However, on the XamlReader.Load code, I get the error "cannot convert from 'string' to

Weird XAML parsing error when trying to set TextBox.IsReadOnly

由 浪尽此生 提交于 2019-12-22 01:25:57
问题 I've managed to reduce this to a simple test case. An exception is thrown during the parsing of this XAML using XamlReader.Parse() : <DockPanel xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <DockPanel.Resources> <Style TargetType="TextBox"> <Style.Triggers> <Trigger Property="IsReadOnly" Value="True"> <Setter Property="Background" Value="#FFEEEEEE" /> </Trigger> </Style.Triggers> </Style> </DockPanel.Resources>

Bindings not applied to dynamically-loaded xaml

由 戏子无情 提交于 2019-12-06 01:44:43
问题 I'm using XamlReader successfully to load a xaml file and create a FrameworkElement to work with. The xaml I'm loading has binding expressions in it such as: <TextBlock Text="{Binding DataContextTextProperty}" /> If I place the FrameworkElement I get back from XamlReader.Load() into a WPF window, the binding all works fine. However, in this case I'm using Laurent Bugnion's excellent article on creating PNGs from WPF/XAML. Since the result of XamlReader.Load() is written directly to a PNG via

XamlReader.Load in a Background Thread. Is it possible?

由 被刻印的时光 ゝ 提交于 2019-12-05 21:45:58
问题 A WPF app has an operation of loading a user control from a separate file using XamlReader.Load() method: StreamReader mysr = new StreamReader(pathToFile); DependencyObject rootObject = XamlReader.Load(mysr.BaseStream) as DependencyObject; ContentControl displayPage = FindName("displayContentControl") as ContentControl; displayPage.Content = rootObject; The process takes some time due to the size of the file, so UI becomes frozen for several seconds. For keeping the app responsive I try to

Bindings not applied to dynamically-loaded xaml

由 不羁的心 提交于 2019-12-04 05:19:40
I'm using XamlReader successfully to load a xaml file and create a FrameworkElement to work with. The xaml I'm loading has binding expressions in it such as: <TextBlock Text="{Binding DataContextTextProperty}" /> If I place the FrameworkElement I get back from XamlReader.Load() into a WPF window, the binding all works fine. However, in this case I'm using Laurent Bugnion's excellent article on creating PNGs from WPF/XAML . Since the result of XamlReader.Load() is written directly to a PNG via a VisualBrush , it seems the necessary mechanics of WPF to invoke binding expressions are bypassed.
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