VS Code extension, debugging: .cshtml files not found when at breakpoint

[dougbu]

An Exception thrown within a view (or the code a view calls) correctly breaks execution. But the display shows neither the Razor-generated C# code nor the .cshtml source. It seems the C# extension does not support the project directory being the virtual root used in generated #line pragmas. The same code works fine in Visual Studio.

The above image is from a Windows system. The behaviour is the same on a Linux (Ubuntu 14.04 LTS) system except the slashes go in the opposite direction.

[gregg-miskelly]

@wesrupert FYI I am assigning this to you

[wesrupert]

This is a bug in Razor (#803) that we don't really have a good way to work around on our side. To work around it per-project in the meantime, please add a sourceFileMap to your launch.json configuration to redirect relative .cshtml paths to their absolute counterparts.

Windows:

"name": ".NET Core Launch (web)",
...
"sourceFileMap": {
    "/Views": "${workspaceRoot}\\Views"
}

macOS/Linux

"name": ".NET Core Launch (web)",
...
"sourceFileMap": {
    "/Views": "${workspaceRoot}/Views"
}

The next version of the extension will add this to projects automatically, as well as let you set breakpoints and view/set variables and watch expressions in .cshtml files.

[gregg-miskelly]

@wesrupert can we use the forward slash version on Windows also? If not, we should fix it so that you can.

[wesrupert]

@gregg-miskelly in the next version of the C# extension, yes. In the meantime, windows needs the backslash.