Window.external null

Hosting a webpage inside a Windows Form. Shooter Rate me:. Please Sign up or sign in to vote. Download source files - 87 Kb Introduction This article discusses my journey toward having a web page run inside of a WinForm client and fire events back to it. In it, the author said: "In my growing years of development, I have had several unanswered questions arise. The Code For this application I am going to have a webpage present buttons and graphics for a product catalog.

This is the code that accomplishes that: C. Copy Code. A list of licenses authors might use can be found here. I was born. I'm currently coding. I'll die some time in the future. I have interests outside of programming and if you knew me then you'd know what those interests are. First Prev Next window. Ramesh Babu Sivaraju 1-Nov Sean Mollet Sep Gibson 9-Feb VidyasagarB 3-Aug Eyezed Jan Samar A 3-Mar Shooter 3-Mar IainF Oct Go to top.

Layout: fixed fluid. Article Copyright by LongRange. Software Developer Senior currently : Avantia, Inc. United States. First Prev Next. Ramesh Babu Sivaraju. I have downloaded the code and I am able to run the application. But when I click on any of the buttons on the browser It is showing an error message "object is null". After debugging, I came to know it is in the script. I have a similar application which opens an IE8 browser to show PrintPreview from a Windows application.

The problem is similar there also. I have googled and found that this is problem with IE8. I would like to know if there is any work around for this. Please help. Thank you. My vote of 5 thatraja 1-Apr BTW where are you Shooter? Come back here Also notify me Cheers. My vote of 5 varun 8-Jan Hey Shooter This article means a lot to me..

I am looking for a sample or example application that works and is functional, and that has a Windows Form embedded inside a Webpage. When the webpage is loaded into a browser, the Windows Form appears in the webpage, without any errors. Fired when an animation unexpectedly aborts. Also available via the onanimationcancel property. Fired when an animation has completed normally. Also available via the onanimationend property. Fired when an animation iteration has completed. Also available via the onanimationiteration property.

Fired when an animation starts. Also available via the onanimationstart property. Fired when the user initiates a copy action through the browser's user interface. Also available via the oncopy property. Fired when the user initiates a cut action through the browser's user interface. Also available via the oncut property. Fired when the user initiates a paste action through the browser's user interface.

Also available via the onpaste property. Fired when the browser has lost access to the network and the value of navigator. Also available via the onoffline property. Fired when the browser has gained access to the network and the value of navigator. Also available via the ononline property. Fired when an element has lost focus.

Also available via the onblur property. Fired when an element has gained focus. Also available via the onfocus property. Also available via the ongamepadconnected property. Fired when the browser detects that a gamepad has been disconnected.

Also available via the ongamepaddisconnected property. Fired when the fragment identifier of the URL has changed the part of the URL beginning with and following the symbol. Also available via the onhashchange property. Sent when the browser hides the current document while in the process of switching to displaying in its place a different document from the session's history. This happens, for example, when the user clicks the Back button or when they click the Forward button to move ahead in session history.

Also available through the onpagehide event handler property. Sent when the browser makes the document visible due to navigation tasks, including not only when the page is first loaded, but also situations such as the user navigating back to the page after having navigated to another within the same tab.

Also available using the onpageshow event handler property. Fired when the active history entry changes. Also available using the onpopstate event handler property.

Fired when the window, the document and its resources are about to be unloaded. Also available via the onbeforeunload property. Fired when the document has been completely loaded and parsed, without waiting for stylesheets, images, and subframes to finish loading. Fired when the whole page has loaded, including all dependent resources such as stylesheets images. Also available via the onload property. Fired when the document or a child resource is being unloaded.

Also available via the onunload property. Fired when the browser has successfully installed a page as an application. Also available via the onappinstalled property. Fired when a user is about to be prompted to install a web application. Also available via the onbeforeinstallprompt property.

Fired when the window receives a message, for example from a call to Window. Also available via the onmessage property. Fired when a Window object receives a message that can't be deserialized. Also available via the onmessageerror property. Fired after the associated document has started printing or the print preview has been closed. Also available via the onafterprint property.

Fired when the associated document is about to be printed or previewed for printing. Also available via the onbeforeprint property.

Why Request. HasFile always return false. Web browser control issue:. Layout: fixed fluid. Web04 2. Strip HTML. Encode HTML. Paste as-is. Code block. Quoted Text. Best guess. Optional Password. Richard Deeming. Richard MacCutchan. Podcast Making Agile work for data science. Stack Gives Back Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Related Hot Network Questions. Question feed. Stack Overflow works best with JavaScript enabled.

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