Parent window freezes when I open a window on click of a button. It works properly again if I minimize and maximize parent window again.
System configuration
Windows 7, 64 bit OS.
.Net framework 3.5 SP1
Visual studio express 2008
Following is the simple application where I can reproduce this issue.
Window1.xaml
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window1" Height="300" Width="300">
<StackPanel>
<TextBox Width="200"/>
<Button Content="click" Click="Button_Click"/>
</StackPanel>
</Window>
Window1.xaml.cs
namespace WpfApplication1 {
/// <summary>
/// Interaction logic for Window1.xaml
/// </summary>
public partial class Window1 : Window {
public Window1() {
InitializeComponent();
}
private void Button_Click(object sender, RoutedEventArgs e) {
(new Window2()).ShowDialog();
}
}
}
Window2.xaml
<Window x:Class="WpfApplication1.Window2"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window2" Height="300" Width="300" WindowStyle="ToolWindow">
<Grid>
</Grid>
</Window>
It works fine if I remove WindowStyle="ToolWindow" !!!!!!
App.xaml
<Application x:Class="WpfApplication1.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
StartupUri="Window1.xaml">
<Application.Resources>
</Application.Resources>
</Application>
The call to ShowDialog() is blocking your GUI thread.
See this question for alternative approaches which don't block the main thread.
Use Show instead of ShowDialog which opens a window in Modal mode
If you use ShowDialog() try set Window1 as Owner for Window2:
Window2 w = new Window2 { Owner = this };
w.ShowDialog();
Show instead of show dialog will work, but maybe you intention was something more like a child window see http://wpftoolkit.codeplex.com/wikipage?title=ChildWindow&referringTitle=Home for details.
Related
I am creating Radio button on Visual Studio and I am having a trouble with Binding
This is my button:
<RadioButton VericalAlignment="Center" GroupName="group1" Content="name"></RadioButton>
I want that if the button was selected then the value of {"someString " + Content Value} will be bind
to SomeClass.variable
is something like this possible?
Thank you!
Something like this should work:
XAML:
<Window x:Class="StackOverflowRadioButton.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:StackOverflowRadioButton"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Grid Margin="81,36,-81,-36">
<RadioButton Content="RadioButton" HorizontalAlignment="Left" Margin="111,135,0,0" VerticalAlignment="Top"
Name="myRadioButton" Checked="myRadioButton_Checked"/>
</Grid>
CS file:
using System.Windows;
namespace StackOverflowRadioButton
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public string someVariable;
public MainWindow()
{
InitializeComponent();
}
private void myRadioButton_Checked(object sender, RoutedEventArgs e)
{
someVariable = "someString " + myRadioButton.IsChecked;
}
}
}
I'm trying to access a winform from the wpf usercontrol that is sitting on it. I realize that there is an ElemetHost that is automatically created when you drop a WPF usercontrol onto a winform but I'm not sure how to get something simple to work. For instance:
If I have a button on the WPF control, how could I get it to close the winform that the usercontrol is sitting on?
Thanks
Form1 Loaded
this.elementHost1.Child = new UserControl1() { Tag = this };
XAML of WpfUserControl
<UserControl x:Class="WindowsFormsApp7.UserControl1"
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:local="clr-namespace:WindowsFormsApp7"
mc:Ignorable="d"
d:DesignHeight="450" d:DesignWidth="800">
<Grid Background="DarkSlateGray">
<Button Name="btnClose" Width="100" Height="25" Content="Close" Click="BtnClose_Click" />
</Grid>
</UserControl>
btnClose Click of WpfUserControl
private void BtnClose_Click(object sender, RoutedEventArgs e)
{
Form1 form = (Form1)this.Tag;
form.Close();
}
Use Tag property of WPFUserControl as a refence holder.
I have a child window of type:
Xceed.Wpf.Toolkit.ChildWindow
and my main window is of type System.Windows.Window
How can I programmatically all my child window into my Main window?
I found the solution:
in your xaml of main window:
<Window x:Class="WpfApplicationTestChildWindow.Window2"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApplicationTestChildWindow"
xmlns:xceed="clr-namespace:Xceed.Wpf.Toolkit;assembly=Xceed.Wpf.Toolkit"
xmlns:primitive="clr-namespace:Xceed.Wpf.Toolkit.Primitives;assembly=Xceed.Wpf.Toolkit"
Title="MainWindow" Height="350" Width="525">
<Grid>
<primitive:WindowContainer Name="cntr1">
</primitive:WindowContainer>
</Grid>
</Window>
and in the code behind:
using System.Windows;
namespace WpfApplicationTestChildWindow
{
public partial class Window2 : Window
{
public Window2()
{
InitializeComponent();
ChildWindow1 child1 = new ChildWindow1();
cntr1.Children.Add(child1);
child1.Show();
}
}
}
I'm trying to navigate to a different page from my MainWindow in a WPF application. The MainWindow just has some welcome text and I want it to move to another page after 4 seconds. The timer is working just fine but I am getting an error that says,
"Error 1 'UbiTutorial.MainWindow' does not contain a definition for 'Frame' and no extension method 'Frame' accepting a first argument of type 'UbiTutorial.MainWindow' could be found (are you missing a using directive or an assembly reference?) c:\users\thomas\documents\visual studio 2012\Projects\UbiTutorial\UbiTutorial\MainWindow.xaml.cs 54 22 UbiTutorial"
in my method
if (introTime > 4)
{
this.Frame.Navigate(typeof(Touch));
}
Visual Studio is complaining about the Frame part of it.
Frame is a Control Type not a Control Instance, without seeing your Xaml I have no idea of what the name of the Frame that you added is, it probably defaulted to frame1 that is what you will need to use to access the Navigate Method. Hopefully this will give you an idea.
MainWindow.xaml
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid>
<Frame Height="100" HorizontalAlignment="Left" Margin="10,10,0,0" Name="frame1" VerticalAlignment="Top" Width="200" />
</Grid>
</Window>
MainWindow.xaml.cs
using System.Windows.Threading;
namespace WpfApplication1
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
DispatcherTimer introTime = new DispatcherTimer();
public MainWindow()
{
InitializeComponent();
introTime.Interval = TimeSpan.FromSeconds(4);
introTime.Tick += new EventHandler(introTime_Tick);
introTime.Start();
}
void introTime_Tick(object sender, EventArgs e)
{
//this.frame1.Navigate(new Uri(#"http://www.google.com"));
this.frame1.Navigate(new UserControl1());
}
}
}
UserControl1.xaml
<UserControl x:Class="WpfApplication1.UserControl1"
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"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300" Background="Red" >
<Grid>
</Grid>
</UserControl>
Can someone please tell me how to hit test the scrollbars of a scrollviewer in WPF?
Thanks,
Andy
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window1" Height="300" Width="300">
<StackPanel>
<ScrollViewer Name="myScrollViewer" Width="280" Height="200" MouseMove="ScrollViewer_MouseMove" >
</ScrollViewer>
<TextBox Name="myTextBox"></TextBox>
</StackPanel>
</Window>
Code behind ...
using System.Windows.Input;
namespace WpfApplication1
{
/// <summary>
/// Interaction logic for Window1.xaml
/// </summary>
public partial class Window1
{
public Window1()
{
InitializeComponent();
}
private void ScrollViewer_MouseMove(object sender, MouseEventArgs e)
{
myTextBox.Text = e.GetPosition(myScrollViewer).X + "," + e.GetPosition(myScrollViewer).Y;
}
}
}
With VisualTreeHelper.HitTest, the MouseEventArgs is relatif to the scrollviewer, so the first parameter is your ScrollViewer.
Then use PointHitTestParameter with the coordinate of the MouseEventArgs.