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Created attachment 6246 [details]
.xml layout file
Visual Studio is only recognizing .axml files as valid layout files. The attached file opens correctly in the designer in Xamarin Studio on windows, but not in Visual Studio. The "Open With..." selector does not list the designer as a valid option for these files either 
X.A. 4.12.02000 (eb70cdfd)
XIVS 1.10.45 (a45a407c)
=== Xamarin Studio ===
Version 4.2.3 (build 60)
Installation UUID: 0a846c8f-f4f7-44a8-9ab1-8dccd7e02db0
Microsoft .NET 4.0.30319.34011
GTK+ 2.24.22 theme: MS-Windows
=== Xamarin.Android ===
Version: 4.12.2 (Enterprise Edition)
Android SDK: C:\Users\XamarinQA\AppData\Local\Android\android-sdk
Supported Android versions:
1.6 (API level 4)
2.1 (API level 7)
2.2 (API level 8)
2.3 (API level 10)
3.1 (API level 12)
3.2 (API level 13)
4.0 (API level 14)
4.0.3 (API level 15)
4.1 (API level 16)
4.2 (API level 17)
4.3 (API level 18)
4.4 (API level 19)
Java SDK: C:\Program Files (x86)\Java\jdk1.6.0_31
java version "1.6.0_31"
Java(TM) SE Runtime Environment (build 1.6.0_31-b05)
Java HotSpot(TM) Client VM (build 20.6-b01, mixed mode)
=== Build Information ===
Release ID: 402030060
Build date: 2014-03-05 16:53:54Z
Xamarin addins: f8a9589b57c2bfab2ccd73c880e7ad81e3ecf044
=== Operating System ===
Windows 6.2.9200.0 (64-bit)
I am also seeing this in the latest from the XVS 1.12 branch:
XA 18.104.22.168 (eb8e9b5)
XVS 22.214.171.124 (53529de)
At this point we're likely not going to get non-regression behavior changes into 1.12, moving to 1.1x
Fixed in commit https://github.com/xamarin/XamarinVS/commit/635d8e522ffb3cd08b7b244704f495dc526cd2cf
Note that just like for any other XML with namespaces, the Open Designer will NOT automatically open our designer. This works the same way as for a renamed .xsd to .xml.
Today I have tried to verify this issue with Xamarin 3.1.187 and now we are getting option to open attached xml file with Android designer as shown in screencast : http://screencast.com/t/QVI5eIleWW.
But we are still not able to open this file in designer. Not sure about the expected result.
Please let me know if I have to verify something else?
What is the content of the XmlFile1.xml file? It should contain a valid layout content. If you for example rename the Main.axml to Main.xml, are you able to open it by selecting the "Android Designer" option in the "Open With..." dialog?
Otherwise please provide more details on the error or behavior you're getting when select the Open With Android designer option.
I have checked this issue with following build:
Microsoft Visual Studio Professional 2013
Version 12.0.21005.1 REL
Microsoft .NET Framework
Xamarin 126.96.36.199 (c376d19d2984310ff50a6e741e3e3e9ce4f920a5)
I observed that when I add an android layout file in layout directory and rename that layout.axml file to layout.xml file. I am able to open that file on "android designier". I have also rename the Main.axml file to Main.xml and I am also able to open that file on "Android designer".
I have also check this issue whith ".xml" file when I add the ".xml" file and add a linear layout in it I am able to open that ".xml file" in "android designer".
This issue has been fixed. Hence, closing this issue.