winforms - w3toppers.com

How do I turn off Compatibility View on the IE WebBrowserControl in a WinForms app?

There is no way to do this other than configuring the following registry settings: HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION or if it’s a 32 bit app on 64 bit Windows: HKLM\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_BROWSER_EMULATION` These settings aren’t surfaced in the WebBrowser control. For more information please see: What IE compatibility mode does the webbrowser control use? In case the link … Read more

UI Design Pattern for Windows Forms (like MVVM for WPF)

I have tried MVP and it seems to work great with windows forms too. This book has an example of windows forms with MVP pattern (sample payroll application). The application is not that complex but will give you an idea about how to go about creating it. Agile Principles, Patterns, and Practices in C#… You … Read more

How to control the font DPI in .NET WinForms app

Assuming you do not try to honor the user’s UI font choice (SystemFonts.IconTitleFont), and hard-code your forms for one font size only (e.g. Tahoma 8pt, Microsoft Sans Serif 8.25pt), you can set your form’s AutoScaleMode to ScaleMode.Dpi. This will scale the size of the form and most of it child controls by the factor CurrentDpiSetting … Read more

System.Windows.Threading.Dispatcher and WinForms?

You can use Dispatcher even in a WinForms app. If you are sure to be on a UI thread (e.g. in an button.Click handler), Dispatcher.CurrentDispatcher gives you the UI thread dispatcher that you can later use to dispatch from background threads to the UI thread as usual.

Show Properties of a Navigation Property in DataGridView (Second Level Properties)

You can use either of these options: Use DataGridViewComboBoxColumn Add corresponding properties to child entity partial class Shape the query to include properties of navigation property using Linq Use CellFormatting event to get value for sub property bounded columns Show string representation of object by overriding ToString() Use a custom TypeDescriptor to enable data binding … Read more

Invoke or BeginInvoke cannot be called on a control until the window handle has been created

It’s possible that you’re creating your controls on the wrong thread. Consider the following documentation from MSDN: This means that InvokeRequired can return false if Invoke is not required (the call occurs on the same thread), or if the control was created on a different thread but the control’s handle has not yet been created. … Read more

Why the form load can’t catch exception?

Rewrite, I’ve since figured out where it comes from. Windows misbehaves when an exception is raised in a 32-bit process when it runs on a 64-bit version of Windows 7. It swallows any exception raised by code that runs in response to a Windows message that’s triggered by the 64-bit windows manager. Like WM_SHOWWINDOW, the … Read more

Winforms-How can I make MessageBox appear centered on MainForm?

It is possible with some servings of P/Invoke and the magic provided by Control.BeginInvoke(). Add a new class to your project and paste this code: using System; using System.Text; using System.Drawing; using System.Windows.Forms; using System.Runtime.InteropServices; class CenterWinDialog : IDisposable { private int mTries = 0; private Form mOwner; public CenterWinDialog(Form owner) { mOwner = owner; … Read more

How do I create a C++/CLI Winforms app in VS2012?

It is an unsubtle hint that they want you to stop creating C++/CLI Winforms applications. The plumbing is still in place however, at least for VS2012 and VS2013. This might not be the case in a future one. You can turn a CLR console application into a Winforms application with these steps: Start with File … Read more