I have a path shape, i want to set a label above the path ,i put a textblock above the path then i handle the Path_MouseEnter , Path_MouseLeave and change the path background the problem is when the mouse leave the path shape to textblock the background changed the other problem when i handle the Path_MouseDown , the textblock also make a problem is there a beter way to set a label above the path shape ?
private void Path_MouseEnter(object sender, MouseEventArgs e)
{
(sender as Path).Fill = System.Windows.Media.Brushes.Yellow;
}
private void Path_MouseLeave(object sender, MouseEventArgs e)
{
(sender as Path).Fill = System.Windows.Media.Brushes.LightGray;
}
private void Path_MouseDown(object sender, MouseButtonEventArgs e)
{
}
Your question is difficult to follow, but I think you mean that you have a TextBlock overlayed on top of a Path, and when the mouse hits the textblock, your Path_MouseLeave() is triggered but your don't want it to be?
If this is the case, just set IsHitTestVisible="False" on the TextBlock to make it transparent to mouse events.
Related
How to know whether a control such as TextBox has the input focus in a Windows Phone Silverlight app?
You have to use FocusManager
bool b = FocusManager.GetFocusedElement() == myTextbox;
There are events like GotFocus and LostFocus for controls.
If you subscribe to these events they automatically get called when your input receives or looses focus
you can use those events for your purpose.
XAML Declaration
<TextBox Name="myTextbox" GotFocus="myTextbox_GotFocus" />
and inside the cs
private void myTextbox_GotFocus(object sender, RoutedEventArgs e)
{
}
private void ContentPanel_LostFocus(object sender, RoutedEventArgs e)
{
}
I have a WPF Canvas with .NET-4.5.
I added events (which autocreated methods for) MouseLeftButtonDown and MouseDown. Using MessageBox, I have confirmed these methods are called when a user clicks on the canvas, but I can't find a way to get the mouse position from MouseButtonEventArgs.
When I added events (and autocreated methods for) ManipulationStarted and ManipulationStarting those MessageBoxes don't show up.
private void CenterCanvas_ManipulationStarted(object sender, ManipulationStartedEventArgs e)
{
MessageBox.Show("Doesn't show up"); // never shows up
}
private void CenterCanvas_MouseDown(object sender, MouseButtonEventArgs e)
{
MessageBox.Show("Shows up"); // shows up, but can't seem to get click position
}
In order to get the mouse position from a MouseEventArgs you would have to call the GetPosition method.
private void Canvas_MouseDown(object sender, MouseButtonEventArgs e)
{
var pos = e.GetPosition((IInputElement)sender);
System.Diagnostics.Trace.TraceInformation("MouseDown at {0}", pos);
}
For getting manipulation events you need to set IsManipulationEnabled to true. You may want to take a look at the Touch and Manipulation section in the MSDN Input Overview.
I'm newbie in Silverlight and I need to activate MouseRightButtonDown(object sender, MouseButtonEventArgs e) from an another event handler in my application.
I have found, that in WPF it is possible to do somthing like this:
public void OnContextMenuOpened(object sender, RoutedEventArgs e) {
MouseButtonEventArgs args = new MouseButtonEventArgs(
InputManager.Current.PrimaryMouseDevice,
0,
MouseButton.Right);
MouseRightButtonDown(sender, args);
}
But I have in Silverlight neither InputManager-Class nor MouseButton-Class... It is generally possible to realise something like that?
I want to do it, because I try to select an DataGridRow(within an custom control) with help of right-mouse-button. Without context menu it is easily possible, but when I switch context menu on, then context menu opens and event will not fired...
My code snippet:
public override void OnApplyTemplate() {
DataGrid = (DataGrid)GetTemplateChild("DataGrid");
DataGrid.MouseRightButtonDown += DataGridMouseRightButtonDown;
ContextMenu = (ContextMenu)GetTemplateChild("ContextMenu");
ContextMenu.Opened += OnContextMenuOpened;
}
private void DataGridMouseRightButtonDown(object sender, MouseButtonEventArgs e) {
//My code to select an DataGridRow
}
public void OnContextMenuOpened(object sender, RoutedEventArgs e) {
//This event-handler now will be always activated if I do
//right-mouse-button-click
}
Thanks a lot for help!
The Results of my research has shown, that it is impossible in silverlight -.-
I have MainWindow which has a button that allows it to open another WPF Window. I want this window to open always on the right hand side of the MainWindow practically right next to it.
How can I do this? This needs to work even if the width of the MainWindow changes as I have various buttons on the MainWindow that can change the size of the MainWindow depending on what panel is visible.
You can calculate where you want the new window if you have a reference to the other window.
Get the other windows position by accessing the Left and Top properties and its width by accessing the ActualWidth or the Width property.
Now you can calculate the new windows position by adding Left + Width + Some spacing.
Check out the documentation for the Left property here:
http://msdn.microsoft.com/en-us/library/system.windows.window.left.aspx
The others behave similarily.
You need to set manual startup location for second window in properties or in code:
WindowStartupLocation = WindowStartupLocation.Manual;
On events Loaded, SizeChanged, LocationChanged of first window, you should adjust position of second window like this:
public void AdjustPosition()
{
window2.Left = Application.Current.MainWindow.Left + Application.Current.MainWindow.ActualWidth;
window2.Top = Application.Current.MainWindow.Top;
}
private void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
AdjustPosition();
}
private void MainWindow_SizeChanged(object sender, SizeChangedEventArgs e)
{
AdjustPosition();
}
void MainWindow_LocationChanged(object sender, EventArgs e)
{
AdjustPosition();
}
I have a contextmenu that's located inside a grid. In the contextmenu's closed-event I need to get hold of the encapsulating grid. I'm aware that I can, in the newest silverlight toolkit, use:
var cm = sender as ContextMenu;
var grid = cm.Owner as Grid;
However, i want to solve it with my current (older) toolkit-version.
private void Contextmenu_Closed(object sender, RoutedEventArgs e)
{
// insert solution here
}
Does anyone know how i can achieve this?
Update: tried about everything, couldnt figure it out. Ended up installing the newest toolkit.
<toolkit:MenuItem Header="Add" Click="MenuItem_Click"/>
private void MenuItem_Click(object sender, RoutedEventArgs e)
{
MenuItem menuItem = (MenuItem)sender;
MessageBox.Show("You chose to " + menuItem.Header.ToString(),"Result",MessageBoxButton.OK);
}