IHTMLElement2::removeExpression method

This element is obsolete and should no longer be used. Removes the expression from the specified property.

Syntax

Boolean* removeExpression(
  [in]  String sPropertyName
);

Parameters

sPropertyName [in]

String that specifies the name of the property from which to remove an expression.

Return value

C++

JavaScript

Remarks

After the expression is removed from the specified property, the value of the property equals the last computed value of the expression. To remove expressions set by the setExpression method, use removeExpression.

The following syntax sections show how to remove an expression from supported Cascading Style Sheets (CSS) attributes and DHTML Properties.

• Use this syntax to remove an expression from a read/write property or from an expando property.
  Copy

  
  object.removeExpression(sPropertyName)
  
  

• Use this syntax to remove an expression from a CSS attribute.
  Copy

  
  object.style.removeExpression(sPropertyName)
  
  

Examples

This example uses the removeExpression method to remove an expression from the width property of a blue box.

Code example: http://samples.msdn.microsoft.com/workshop/samples/author/dhtml/refs/removeExpression.htm

<INPUT TYPE=text ID=oBox1 value=40>The sum of the values in these two text boxes determines the width <BR><INPUT TYPE=text ID=oBox2 value=40>of the blue text box below.
<BR><INPUT TYPE=text ID=oBox3 STYLE="background-color:blue">
<BR><BR><INPUT TYPE=button ID=Button1 
    value="Step 1: Get expression" onclick="getexp()">
<INPUT TYPE=button ID=Button2 value="Step 2: Remove expression" 
    onclick="remexp()">
<INPUT TYPE=button ID=Button3 value="Step 3: Get expression again" 
    onclick="getexp()">
<BR>
<HR>
<BR>
Right-click anywhere on this page to view the source code.
 
<SCRIPT>
var s;
var b;
oBox3.style.setExpression("width","eval(oBox1.value) + 
    eval(oBox2.value)","jscript");
function getexp()
{
    s=oBox3.style.getExpression("width");
    alert("Expression for the width of the blue box is \n\n" + s + 
    "\n\nThe width property has a value of " + oBox3.style.width);
}
function remexp()
{
    b = oBox3.style.removeExpression("width");
    alert("Expression removed successfully? \n" + b);
}
</SCRIPT>

See also

IHTMLElement2

IHTMLStyle2

runtimeStyle

style

Reference

getExpression

recalc

Conceptual

About Dynamic Properties

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Build date: 11/29/2012