On a Windows forms application I have tabcontrol with several tab pages.
While on Design mode I can not select tabs , why ?
Related
VS 2017, WPF
I have a WPF project in which several self made User Controls are defined.
On a window, I have added these controls directly on the window grid as well as on grids on tab items of a tab control.
The project compiles and runs fine.
There are no errors in the XAML view or designer view of the User Controls.
There are no errors in the XAML view of the window.
Here is my problem:
in the designer view of the window, all my User Controls get the yellow triangle warning sign.
How can I find out what these warnings mean and why they are there ?
Are there any guidelines to this? WPF windows are shown in taskbar by default. You must excplicitly set them not be shown there by
ShowInTaskbar = False
However it seems that many Microsoft programs seem to have only main window in taskbar.
Please refer to MSDN.
Make the following window types appear on the taskbar (for Windows 7, by using a taskbar button thumbnail):
Primary windows (which includes dialog boxes without owners)
Property sheets
Modeless progress dialog boxes
Wizards
For Windows 7, use taskbar button thumbnails to group the following window types with the primary window taskbar button it was launched from. Each program (specifically, each program perceived as a separate program) should have a single taskbar button.
Secondary windows
Workspace tabs
Project windows
MDI child windows
When the WPF window is opened in design view in Visual Studio, the Toolbox pane automatically loads WPF controls into "Common WPF Controls" tab and "All WPF Controls" tab.
Does anyone know how Visual Studio does this?
Seems like they would be loaded through either the Project References or the (more likely) user options saved when you rightclick on the tookbox and choose "Choose Items...".
I would imagine that somewhere, there is a setting where by default when a XAML page is open, it loads a bunch of items in System.Windows.Controls into the Toolbox. If you want, you can deselect those items you dont want, and put different items in the toolbox
I've got this situation. (.net 3.5)
A Winform application that with OleAutomation and Office Interop create an excel, a toolbar and handlers for buttons in the toolbar.
Now we've got some functionality that shows the user modal windows (winform 2.0) with the method:
form.ShowDialog(new ExcelHwndWrapper(objExcelApplication.HWND))
And the "owner" of the modal form is set to the "excel" window.
Now I would like to create some WPF Window instead of Winforms due to layout requirements for new functionalities.
Is there any way to Show a WPF ModalDialog "over" excel Window ?
I found something for showing a WPF ModalDialog "over" a winform, but nothing over excel.
Thanks.
When using VSTO and Office 2007, I've had trouble using WPF Windows as modal dialogues. What I found that worked much better was creating a Winforms Form and putting an ElementHost control inside it, then putting my WPF content inside that.
When I used WPF Windows without the Winforms wrapper I ran into trouble with properly capturing keyboard input, among other things.
As long as you make the ElementHost stretch to fill the entire dialogue it'll look like you have a WPF Window.
I have ReportViewer winForms control for showing Microsoft Reports in my WPF application hosted over WindowsFormsIntegration.
When the MouseDown event of my textBlock triggers, I would like it to fade lets say from 0 to 100 visability, like some other elements in my Window. It doesn't, so I was wondering is it the same for all hosted controls or this one specific and how can it be solved?
Regards,
Ivan
The WindowsFormsHost supports Transparency. But some WinForms Controls do not.
See the Supported Scenarios in Windows Presentation Foundation and Windows Forms Interoperation article on MSDN. Especially the first row in the "Behaviour" table:
Some Windows Forms controls do not
support transparency. For example, the
TextBox and ComboBox controls will not
be transparent when hosted by WPF.