WinForms - check if MainFrame.IsValid before calling LoadUrl

amaitland · amaitland · commit 8b6065d82726 · 2021-12-15T09:39:19.000+10:00
- Check MainFrame.IsValid As yet I've not seen a way to reproduce the actual problem, single reported case so far at TV-Rename/tvrename#862
diff --git a/CefSharp.WinForms/ChromiumWebBrowser.cs b/CefSharp.WinForms/ChromiumWebBrowser.cs
@@ -454,7 +454,10 @@ public void Load(string url)
             {
                 using (var frame = this.GetMainFrame())
                 {
-                    frame.LoadUrl(url);
+                    if (frame.IsValid)
+                    {
+                        frame.LoadUrl(url);
+                    }
                 }
             }
             else

Original file line number	Diff line number	Diff line change
`@@ -454,7 +454,10 @@ public void Load(string url)`
`454`	`454`	`{`
`455`	`455`	`using (var frame = this.GetMainFrame())`
`456`	`456`	`{`
`457`		`- frame.LoadUrl(url);`
	`457`	`+ if (frame.IsValid)`
	`458`	`+ {`
	`459`	`+ frame.LoadUrl(url);`
	`460`	`+ }`
`458`	`461`	`}`
`459`	`462`	`}`
`460`	`463`	`else`