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2013-03-01T20:02:03.223
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2013-03-01T20:38:48.350
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2013-03-01T20:38:48.350
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text
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You're looking for a helpers that will take a string and: <ol> <li>If the string is not empty, render that string.</li> <li>If the string is not empty, render a given template.</li> <li>If the string is empty, render "N/A" html.</li> <li>If the string is empty, render a given template.</li> </ol> When passing a razor block to a function as a parameter, razor packages the block as Func. Change the parameters in the helper functions to take that type of delegate and don't forget to call those delegates (I chose to pass null). These helpers should handle those scenarios. Solution <pre><code>@helper RenderThisOrThat(string stringToRender, Func<object, IHtmlString> leftTemplate = null, Func<object, IHtmlString> rightTemplate = null) { var shouldRenderLeft = !string.IsNullOrWhiteSpace(stringToRender); leftTemplate = leftTemplate ?? (o => MvcHtmlString.Create(stringToRender)); @RenderThisOrThat(shouldRenderLeft, leftTemplate, rightTemplate) } @helper RenderThisOrThat(bool shouldRenderLeft, Func<object, IHtmlString> leftTemplate, Func<object, IHtmlString> rightTemplate = null) { var shouldRenderRight = !shouldRenderLeft; if (shouldRenderRight) { if (rightTemplate != null) { @rightTemplate(null) } else { N/A } } else { @leftTemplate(null) } } </code></pre> Examples <pre><code>1. @Helpers.RenderThisOrThat(Model.StringWithBob) 2. @Helpers.RenderThisOrThat(Model.StringWithNull) 3. @Helpers.RenderThisOrThat(Model.StringWithBob, @I'm @Model.StringWithBob) 4. @Helpers.RenderThisOrThat(Model.StringWithNull, @I'm @Model.StringWithBob) 5. @Helpers.RenderThisOrThat(Model.StringWithBob, @I'm @Model.StringWithBob, @What about Bob?) 6. @Helpers.RenderThisOrThat(Model.StringWithNull, @I'm @Model.StringWithBob, @What about Bob?) </code></pre> Will output: <ol> <li><code>Bob</code></li> <li><code>N/A</code></li> <li><code>I'm Bob</code></li> <li><code>N/A</code></li> <li><code>I'm Bob</code></li> <li><code>What about Bob?</code></li> </ol>
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1. POMVC Razor: Helper method to render alternate content when empty
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1. USNick VanderPyle
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1. USNick VanderPyle
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1. POMVC Razor: Helper method to render alternate content when empty
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1. COThis is great! Also since you are my coworker all I have to do is accept this answer and then `hg pull` !
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 USChris Barr

Querying!

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