asp.net mvc - NullDisplayText Data Attribute -

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i have mvc application , trying assign nulldisplaytext property fields in model, not getting results.

here portion of model data attribute, null value should cause output "(none)"...

public class task     ...     <displayformat(nulldisplaytext:="(none)", applyformatineditmode:=true, convertemptystringtonull:=true)>     public property estimatedprice nullable(of decimal)     ... end class

when access property in view (strongly typed task of course) so...

@modeltype projectname.task @html.valuefor(function(model) model.estimatedprice)

the debugger says model.estimatedprice = nothing output nothing. why nulldisplaytext attribute not correctly working here?

any ideas going wrong?

in order <displayformat> attribute apply in view, have use @html.displayfor , @html.editorfor helpers. example:

@html.displayfor(function(model) model.estimatedprice)

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