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Configuring Siebel eBusiness Applications > Specialized Behavior Supported by Web Templates > Favorites (Predefined Queries) >
Conditional Tag: <swe:if-var>
Purpose: The <swe:if-var name="[value]"> tag is used within applet templates to conditionally express its body based on a variable set in a parent view template. When an applet is associated with a view, the applet's templates act as a child of the view's template for the purposes of the swe:if-var tag. The applet placeholder in the view template must specify a variable for the swe:if-var tag in the child applet template to evaluate. The swe:if-var expression returns true or false depending on whether the variable it is evaluating is a property of the <swe:applet> tag in the corresponding view template. This construct is useful for conditionally displaying parts of an applet depending on its position within a view. Figure 133 shows a diagram of the relationships among objects and template files.
Figure 133. Object Relationships
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Usage: consider an example where a view uses a template that contains the following tags: <swe:applet hintMapType="Applet" id="1" property="FormattedHtml" hintText="Applet" var="Parent"/>
<swe:applet hintMapType="Applet" id="2" property="FormattedHtml" hintText="Applet" var="Child"/>
The view object also references an applet (through a view Web template item) whose template includes the following tags:
<swe:if-var name="Parent">
<td valign="middle" nowrap>
<swe:menu type="Button" bitmap="MenuBttn" width="38" height="15" bgcolor="gray" fgcolor="blue"/>
</td>
</swe:if-var>
<swe:if-var name="Child">
<td valign="middle" nowrap>
<swe:menu type="Button" bitmap="MenuBttn" width="38" height="15" bgcolor="gray" fgcolor="red"/>
</td>
</swe:if-var>
If the user drags and drops the applet into the placeholder in the view template with an id=1, the first swe:if-var condition will return TRUE and the second will return FALSE. This is because the <swe:applet> placeholder with an id=1 has its var property set to "Parent." As a result, the button menu will be displayed with a foreground color of blue. By contrast, if the user had mapped the applet to the placeholder represented by <swe:applet id="2">, the reverse would be true, and the button menu will be displayed with a foreground color of red.
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