<if cond="">

A conditional statement used to determine what the application executes on the basis of the evaluation of one or more variables.

The value in cond="" must be an expression containing the following three elements: 1) a value, variable or function; 2) an operator; and 3) another value, variable or function.

There must be no spaces in the expression other than spaces that may be present in a text string value.

All variables used in the conditional statement must have been defined (using <assign name=""/> or <get>) before the conditional statement, either above the conditional statement in the same node, in a previous node, or in <settings> (using <assign name="" expr=""/>). If they are undefined, they will cause an error. Likewise, if an existing variable is assigned a new value using <assign name="" expr=""/>, this must be done before the conditional statement if the new value is to be evaluated.

Constants in conditional statements must be placed in single quotes; variables must not.

Allowed operators are:

==	is equal to*
!=	is not equal to
>	is greater than
<	is less than
>=	is greater than or equal to
<=	is less than or equal to

* Note that two equal signs are used in evaluation rather than assignment.

Child of: <node name=""> or any multi-line tag at any level within <node name="">

Parent of: Nothing

See also: <assign name="" expr=""/>, <get>

Example:

<medias>

<if cond="user_visits=='1'">

                        <media>

                                    <file>first_time_welcome.mp4</asset>

</media>

<elseif cond="user_visits=='2'"/>

                        <media>

                                    <file>second_time_welcome.mp4</asset>

</media>

<else/>

                        <media>

                                    <file>generic_welcome.mp4</asset>

</media>

</if>

</medias>

Working example: Search for <if cond="">...<elseif cond=""/>...<else/>...</if> in the file trivia_demo.xml.