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asp.net-mvcrazor

If value is null put an empty string on razor template?

I have a razor template like below. I want to check if the value in the input field is null, put a empty string, if the @UIManager.Member.EMail has a value, put its value. How can I do that?

Normal Input:

<input name="EMail" id="SignUpEMail" type="text" class="Input" 
       value="@UIManager.Member.EMail" validate="RequiredField" />

Razor Syntax Attempt:

<input name="EMail" id="SignUpEMail" type="text" class="Input" validate="RequiredField"
       value="@(UIManager.Member == null) ? string.Empty : UIManager.Member.EMail" />

The value is shown in the input field is:

True ? string.Empty : UIBusinessManager.MemberCandidate.EMail
Solution

  • If sounds like you just want:

    @(UIManager.Member == null ? "" : UIManager.Member.Email)

    Note the locations of the brackets is critical; with razor, @(....) defines an explicit range to the code - hence anything outside the brackets is treated as markup (not code).