Wpf open help file

Figure 3. You can set multiple file types by using the pipe " " operator as a file extension separator. The following code snippet sets the dialog to browse text files only.

View All. Mahesh Chand Updated date Aug 27, Now, let's write a button click event handler. The Filter property of OpenFileDialog is used to set what types of files you want the dialog to browse. The InitialDirectory property is used to set the initial directory of the dialog when the dialog is launched.

You can also select multple files using the dialog by setting OpenFileDialog's Multiselect property to true. Next Recommended Reading. Net Core 6. Create A. NET 4. I have the declarations in the Window and with that using F1 brings up the. And if I try to use a keyword, the. Any idea what I might be doing wrong here? Pingback: My Pocket reads readitlater « Opposable Bits. What path should I use for KeywordProperty? Is there a need to prepend the htm page as Abhishek S suggests, or am i doing something else wrong?

Thanks for your comments. Just want to add that in my. You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account. Notify me of new comments via email.

Notify me of new posts via email. Skip to content. Generic; using System. Linq; using System. Text; using System. Windows; using System. Forms; using System. IsNullOrEmpty fileName args. Share this: Twitter Facebook. Like this: Like Loading Previous Silverlight OverrideCursor. Next Please select your collection. May 2, at pm Reply. Glad you like it. Pete, Nice work sir! Like the way the help file can be scoped.

I assume for a one off topic, the Filename and Keyword could be passed and used. See you soon Mate, Cheers, Karl. Cheers Karl. You could pass the keyword and filename for a one off topic. May 3, at pm Reply. May 25, at am Reply. Cheers, mark. May 28, at pm Reply. Mark, I love the extensibility of WPF. May 29, at am Reply. June 16, at pm Reply. June 17, at am Reply. July 26, at am Reply. Great code for help. It was exactly what I was looking for today.

ShowHelp null, FindFilename parent ; It seems that FindFilename continued to walk up the tree looking for a parent object with the correct Filename dependency property until it ran out of things to check. September 6, at pm Reply. September 8, at pm Reply. I just encountered my error. I have: … When I hit F1 the help comes up as desired. But if I navigate to the Help item in the menu and select it I get the exception I was referring too above: Type: System.

Win32 namespace. In this article we'll focus on the OpenFileDialog class, which makes it very easy to display a dialog for opening one or several files. Let's start off by using the OpenFileDialog without any extra options, to load a file to a TextBox control:. Once you click the Open file button, the OpenFileDialog will be instantiated and shown.

Depending on which version of Windows you're using and the theme selected, it will look something like this:. The ShowDialog will return a nullable boolean value, meaning that it can be either false, true or null. If the user selects a file and presses "Open", the result is True, and in that case, we try to load the file into the TextBox control.

Normally when you want your user to open a file in your application, you want to limit it to one or a couple of file types. For instance, Word mostly opens Word file with the extension. You can specify a filter for your OpenFileDialog to indicate to the user which types of file they should be opening in your application, as well as limiting the files shown for a better overview.

This is done with the Filter property, which we can add to the above example, right after initializing the dialog, like this:.