simple razr if statement

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Tom Cowling 144 posts 343 karma points

Nov 20, 2013 @ 15:09
0

Simple razr if statement
Hi everyone,

I'm trying to run a simple if test in Razr, but I'm not familiar with the language so wondered if anyone could help.

What I'm looking to do is the following:

If a field is empty, don't display it - simple right!

Here's what I have so far, but I don't know where to start as I'm getting a runtime error..
```
<umbraco:Macro runat="server" language="cshtml">
@if(Model.GetProperty("heading").Value!=String.Empty){
   <h1><umbraco:Item field="heading" runat="server" /></h1>
}
</umbraco:Macro>
```
Any help would be much appreciated!

Thanks,

Tom
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Jeavon Leopold 3074 posts 13632 karma points MVP 11x admin c-trib

Nov 20, 2013 @ 15:12
100
Hi Tom

Give this a try:
```
<umbraco:Macro runat="server" language="cshtml">

@if(Model.HasValue("heading")){
   <h1>@Model.heading</h1>
}
</umbraco:Macro>
```
Jeavon
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Tom Cowling 144 posts 343 karma points

Nov 20, 2013 @ 15:14

0

Perfect thanks a lot!

So is the hasvalue statement a shorthand for checking if something exists in the page as it's being built?

Could anyone recommend a good solid starting place to learn Razr too?

Thanks!

Tom

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Dennis Aaen 4500 posts 18255 karma points admin hq c-trib

Nov 20, 2013 @ 15:19

0

Hi Tom,

A goog starting point could be:

http://our.umbraco.org/documentation/Reference/Templating/Macros/Razor/basic-razor-syntax

http://our.umbraco.org/documentation/reference/templating/macros/razor

And the Umbraco TV.

http://umbraco.tv/

The documentation for working with some you the dbuilt-in-property-editors:

http://our.umbraco.org/documentation/using-umbraco/backoffice-overview/property-editors/built-in-property-editors/

Hope this can helps you and of course keep asking in the forum.

/Dennis

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Jeavon Leopold 3074 posts 13632 karma points MVP 11x admin c-trib

Nov 20, 2013 @ 15:26
1
Hi Tom,

Yes, to be really really sure you can do this which will first check the property exists and then check if it has a value
```
@if(Model.HasProperty("heading") && Model.HasValue("heading")){
   <h1>@Model.heading</h1>
}
```
Are you just starting out with this project/Umbraco? If you are, I would recommend that you use Mvc templating rather than WebForms? The DynamicNode object you are using here (Model) is now legacy and has been fully replaced by IPublishedContent/UmbracoHelper either native in Mvc views or using a Partial View Macro with a WebForms (.master) template.

I would also recommend umbraco.tv as Dennis has above.

Jeavon
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