razor if statements

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Ryan 35 posts 129 karma points

Jun 26, 2012 @ 17:46
0

Razor If Statements

Razor
Hi, I'm new to Umbraco and Razor. I'm testing with Umbraco 4.7.2.

I'm trying to see if a field has a value and checkbox is checked. "myLink" is a textstring and "newWindow" is a true/false. Basically, I'm trying to see if the link should be opened in a new window. I know you can do this easily in the WYSIWYG editor, however, I'm trying to build some custom functionality for an image rotator.
```
<umbraco:Macro runat="server" language="cshtml">
@using umbraco.MacroEngines
@inherits umbraco.MacroEngines.DynamicNodeContext
@{
   if (Model.HasValue("myLink") && Model.newWindow == 1){
      <a href="@Model.myLink" target="_blank">@Model.myLink</a>
   }else if(Model.HasValue("myLink")){
      <a href="@Model.myLink"">@Model.myLink</a>
   }
}
</umbraco:Macro>
```
While I'm asking, if this the best way to check if a field has text?
```
if (Model.HasValue("someField")){@Model.someField}
```
Thanks your input!
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Barry Fogarty 493 posts 1129 karma points

Jun 26, 2012 @ 19:00
0
Hi Ryan, welcome to the forum!

Yes as far as I know @Model.HasValue("someField") is the recommended way in Razor to check for a value in a field, as it will also handle a null reference too (if the field is not found).

Re your if statement, you could try something like this:
```
@{
    var linkTarget = (Model.newWindow == 1) ? " target=\"_blank\"" : "";   
 <a href="@Model.myLink"@Html.Raw(linkTarget)>@Model.myLink</a>
}
```
Good luck!
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Ryan 35 posts 129 karma points

Jun 26, 2012 @ 19:16
0
Thanks for the reply Barry! I'm still having some trouble. I've tested the true/false field and have seen both "0/1" or "False/True" as the value. Currently, its showing as "True" I tried to modify your code to use "True" but it's throwing an error. Any suggestions? I really appreciate the help!
```
@{
    var linkTarget =(Model.newWindow =="True")?" target=\"_blank\"":"";
    <a href="@Model.myLink"@linkTarget>@Model.myLink</a>
}
```
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Dan Diplo 1554 posts 6205 karma points MVP 5x c-trib

Jun 26, 2012 @ 22:03
0
A true/false field should convert to an actual boolean, so you can do:
```
var linkTarget = (Model.newWindow) ? " target=\"_blank\"" : String.Empty;
```
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Ryan 35 posts 129 karma points

Jun 26, 2012 @ 22:41

0

Thank you Dan! That worked.

I did have another if statement question. How do you check if a media picker field has a value?

Thanks again. The community here is great!

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Dan Diplo 1554 posts 6205 karma points MVP 5x c-trib

Jun 27, 2012 @ 09:28
1
In 4.7.2 probably the safest way is to use
```
if (Model.HasValue("YourPropertyAlias")) { }
```
You can also do
```
if (!String.IsNullOrEmpty(Model.YourPropertyAlias.ToString()) { }
```
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