asp.net mvc 3 - ViewData is empty when returning view -

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i baffled s have never came across this. have shared view called "error" outputs standard message followed custom message:

@model system.web.mvc.handleerrorinfo  @{     viewbag.title = "error"; }  <h2>     sorry, error occurred while processing request. @{ viewdata["errormessage"].tostring(); } </h2>

inside controllers catch block setting viewdata custom message:

    catch (exception ex)     {         ...         viewdata["errormessage"] = "this custom message";         return view("error");     }

however, when view loaded, viewdata shows key "errormessage" never outputs string.

your expression not display because don't write out viewdata["errormessage"] response.

with @{ ... } create razor code block not write output executes code inside.

to write output need use @ sign:

<h2>     sorry, error occurred while processing request. @viewdata["errormessage"] </h2>

more info razor syntax.


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