Hello. I have many(dozens) of elements with blur effects. The problem is it's working slow.
Then I tried such settings:
<BlurEffect x:Key="Effect"
KernelType="Box"
RenderingBias="Performance"
Radius="1.5"/>It became better but still not good enough. What can you advice to solve this issue? I can try to write custom blur effect but it would be the last resort.
DataGridTemplateColumn tc = new DataGridTemplateColumn();publicstaticstring GetHeaderDataTemplate(string bindingPath) {return@"<DataTemplatexmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation""xmlns:x=""http://schemas.microsoft.com/winfx/2006/xaml"" ><TextBlock Text=""{Binding Path="+ bindingPath + @"}""TextWrapping=""Wrap""Foreground=""#FF1EA800""FontWeight=""Bold"" /></DataTemplate>";
} tc.HeaderTemplate = (DataTemplate)XamlReader.Parse(GetHeaderDataTemplate(someText));
When WPF application runs on windows 10 tablet pc, do we have any option to detect its shift to sleep state? PowerModeChanged event can be handled on desktop pc if it goes to sleep, but that cannot be handled on tablet.
As some service stop during sleep, I need to detect the state.
Thanks in advance.
I am working in WPF for converting bookmarks into xml doc and then binding the xml into tree view to display the bookmarks into tree view.
My code is:
<Window.Resources>
<HierarchicalDataTemplate x:Key="NodeTemplate"
ItemsSource="{Binding XPath=./*}">
<TextBlock x:Name="nodetext"/>
<HierarchicalDataTemplate.Triggers>
<DataTrigger Binding="{Binding Path=NodeType}" Value="Element">
<Setter TargetName="nodetext" Property="Text" Value="{Binding XPath = Title}" />
</DataTrigger>
</HierarchicalDataTemplate.Triggers>
</HierarchicalDataTemplate>
</Window.Resources>
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<TreeView Name="trvItems" Grid.Row="0"
ItemsSource="{Binding}" ItemTemplate="{StaticResource NodeTemplate}">
Using this:
<SetterTargetName="nodetext"Property="Text"Value="{BindingXPath= Title}" />
I am getting simple text in display but not in tree view, need to display in tree view format.
CS code:
public MainWindow()
Hi,
I meet one strange problem in writing a visual including ArcSegment control.
Here is the xaml code:
<Canvas x:Name="canvas" Margin="20" Width="300" Height="300">
<Path Stroke="Red" StrokeThickness="3" Fill="Yellow">
<Path.Data>
<PathGeometry>
<PathFigure StartPoint="113 113" IsClosed="True">
<LineSegment Point="113 0" IsStroked="True" />
<ArcSegment x:Name="arc" Size="113 113" IsLargeArc="True" SweepDirection="Clockwise"
RotationAngle="340.5"
Point="75.18 6.51"/>
<LineSegment Point="113 113" />
</PathFigure>
</PathGeometry>
</Path.Data>
</Path>
<Path Stroke="Red" StrokeThickness="3" Fill="Red">
<Path.Data>
<PathGeometry>
<PathFigure StartPoint="113 113" IsClosed="True">
<LineSegment Point="113 0" />
<ArcSegment x:Name="arc2" Size="113 113" IsLargeArc="False" SweepDirection="Counterclockwise"
RotationAngle="19.5"
Point="75.18 6.51"/>
<LineSegment Point="113 113"/>
</PathFigure>
</PathGeometry>
</Path.Data>
</Path>
</Canvas>
and here the code to write this canvas to an xps document:
//var cultureInfo = CultureInfo.GetCultureInfo("en-US");
var cultureInfo = CultureInfo.GetCultureInfo("fr-FR");
Thread.CurrentThread.CurrentCulture = cultureInfo;
Thread.CurrentThread.CurrentUICulture = cultureInfo;
string strXpsFile = $"C:\\temp\\{Guid.NewGuid().ToString()}.xps";
var document = new XpsDocument(strXpsFile, FileAccess.ReadWrite);
var xpsdw = XpsDocument.CreateXpsDocumentWriter(document);
var vToXpsD = xpsdw.CreateVisualsCollator();
vToXpsD.Write(canvas);
vToXpsD.EndBatchWrite();
document.Close();
I get a broken xps document.
If I change the culture to en-US, or the InvariantCulture. or make the RotationAngle to an integer instead of a decimal value, I can get the correct xps document. Seems related to the decimal separator.
Do you have any idea about this?
Hi,
I am having some issues with getting my vector icons into my WPF application.
Whenever I paste my path data in to draw my image I place the path data inside a grid which is inside a button and the content isn't displayed correctly.
Here is what it looks like.
Am I going wrong somewhere?
Also is there a way to group the two path data together so it makes it easier to move the graphic around?
Thanks!
Hi,
I want to set word by word navigation i n richtextbox. I already done.But In that navigation,each word highlight in the left corner and the hide.But i want to highlight a word in center position of the richtextbox. So my query is,
1.How to get that top center position of the WPF Richtextbox and how to set words in that position?
2.How to set that current caret position into center top of the Richtextbox?
3.Any predefined API is there for setting a caret position in top center of the richtextbox?
Regards
Sanju
this code only shows the text when you click the dropdown and select(it is correct)
the drop down does not show text from a separate table
any help would be appreciated, maybe a project I can download.
thanks, tom
<DataGridTemplateColumnx:Name="AC_Limit_FrequencyColumn"Header="Frequency"Width="SizeToHeader">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<ComboBoxSelectedItem="{BindingFrequency Required}"TextElement.Foreground="ForestGreen">
<ComboBoxItemContent="{BindingAC Limit Frequency}"TextElement.Foreground="Red"/>
</ComboBox>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
Tom
Hello,
I'm struggling getting started on this one so I hope someone can point me in the right direction.
I need a window that allows users to enter a number and from that number I generate that number of buttons in a grid. These buttons require a tag and a right click context menu.
<Button x:Name="button" Content="" Margin="6,15,1,1" Click="Button_Click" Grid.Row="1" Style="{StaticResource MyButton}" Tag="button" Grid.Column="1"><Button.ContextMenu><ContextMenu><MenuItem Header="{x:Static p:Resources.Add}" Click="RightClickButton_Click" Tag="button" /><MenuItem Header="{x:Static p:Resources.Delete}" Click="RightClickReset_Click" Tag="button" /></ContextMenu></Button.ContextMenu></Button>I use the tag to read and write values to user settings. button(x)label, button(x)file.
I have looked at dynamically creating a grid but I cannot seem to create new colums/rows based upon an int as they seem to need a hard coded name rather than a dynamic one.
Hopefully someone can point me in the right direction.
Sorry for what is potentially a very simple solution.
How I can add treeview item into tree view item with more then one level with DataTemplate and Item Source in WPF?
I have tree view in that I have multilevel treeview items each item of tree have child into item and child item also have item then if I want to fill this details with item source, How I can manage to do it without use of hierarchicaldatatemplate
How to add GroupBox with inside controls into grid When each Checkbox clicks Dynamically in WPF.
When CheckBox1 Click in ListBox1 into grid it will adding another ListBox2 with checkbox values into same grid.it is working fine.
But When i check another checkbox2 click in ListBox1 it will adding checkbox value into same listbox2 .
Error: In this I want to add Another listbox or groupbox list for check box2 click below listbox2 into same grid . Dynamically
We want to show sleeted value in the combo box. We are coding as follows.
1-I have created property for showing the value
private string _severityValue = "Select...";
public string SeverityValue
{
get { return _severityValue; }
set
{
SetProperty(ref this._severityValue, value);
RaisePropertyChanged("SeverityValue");
}
}And xaml design is as follows
<ComboBox Grid.Row="5" Grid.Column="0" Name="SeverityComboBox" Width="150" Height="30" StaysOpenOnEdit="True" IsSynchronizedWithCurrentItem="True"
SelectedValue="{Binding RepairRecommendationsModel.SeverityValue, Mode=TwoWay}" HorizontalAlignment="Left" VerticalAlignment="Top"
IsEditable="False" IsTextSearchCaseSensitive="False" Margin="5,0,0,0" MaxHeight="30" MinHeight="30"><ComboBoxItem Content="Select..."/><ComboBoxItem Content="Unit Down" /><ComboBoxItem Content="Possible Failure" /><ComboBoxItem Content="Preventative Maintenance" /></ComboBox>When we run the application then it's not showing selected value. We are unable to determine the issue.
Please help to find out solution. thanks
Hi to all,
I want to use multiple progressbar controll used in listview . how its possible.
When my data is uploaded than progresbar status is done show.
Thanks,
A.Acharya Feedback to us Develop and promote your apps in Windows Store Please remember to mark the replies as answers if they help and unmark them if they provide no help.
Hi. I have a problem with displaying .chm help from wpf application.
After calling
Help.ShowHelp(null, filePath);
Help is displayed but Glossary Tab is blank.
If I open .chm file using
Process.Start(filePath);
Glossary displayes correctly.
Can you please advice?
listBox.Refresh() works great in WinForms. But there is no equivalent in WPF. I'm looking for a way to accomplish this, I have come across several ways of doing this. All of which are confusing to me as a beginning programmer. There is...
Asych/Await
Backgroundworker
OberservableCollections with INotifyProperty Changed
etc...
It seems crazy to me that a single line of code has to be replaced with quite a few more to accomplish the goal with what is a newer technology. Don't get me wrong, WPF looks great and I really want to start using it as a replacement for WinForms. Below is a simplified version of what I'm looking to do. Can anyone tell me which direction to go please?
My XAML:
<Window x:Class="ListBoxUpdate.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:ListBoxUpdate"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525"><Grid><StackPanel><ListBox x:Name="listBox" HorizontalAlignment="Left" Height="187" VerticalAlignment="Top" Width="260"/><Label x:Name="label" Content="Label" HorizontalAlignment="Left" VerticalAlignment="Top"/><Button x:Name="button" Content="Button" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Click="button_Click"/></StackPanel></Grid></Window>My C#
using System;
using System.IO;
using System.Windows;
namespace ListBoxUpdate
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void button_Click(object sender, RoutedEventArgs e)
{
string[] filesFound = Directory.GetFiles(@"c:\Test\", "*.txt", SearchOption.AllDirectories);
foreach (String file in filesFound)
{
listBox.Items.Add(file);
label.Content = file;
}
label.Content = "Done";
}
}
}Thanks.
Hi,
I have following piece of code.
<UserControl.Resources>
<DataTemplate DataType="{x:Type BaseControls:MainMenuViewModel+MenuItem}">
<Grid x:Name="OuterGrid" Height="20">
<!-- some xaml -->
</Grid>
</DataTemplate>
<!-- some xaml -->
</UserControl>
I do not understand this line of code.
<DataTemplate DataType="{x:Type BaseControls:MainMenuViewModel+MenuItem}">
Can someone please explain me what is happening with + here "MainMenuViewModel+MenuItem"
Thanks.