## ClipEffectItem.Expression

### Description

Returns the String representation of the expression used by the ClipEffectItem. The valid tokens that can be used in the context of this expression can be found in the "Animating" user's guide.

### C# Syntax

    // get accessor

    String rtn = ClipEffectItem.Expression;

### Examples

#### Python Example

    oRoot = Application.ActiveSceneRoot

    oCube = oRoot.AddGeometry("Cube", "MeshSurface")

    #Creating the first animation source

    oSource = Application.StoreAction(oRoot, "cube.kine.local.posx,cube.kine.local.posy,cube.kine.local.posz", 1, "StoredStaticPose", 1, 1, 5, 0, 0)

    #Creating the first clip

    oClip = Application.AddClip(oRoot, oSource)

    for i in range(oClip.MappedItems.Count):

    	oCurrMappedItem = oClip.MappedItems(i)

    	oParam = oCurrMappedItem.Destination

    	if oParam.FullName == "cube.kine.local.posy":

    		Application.SetMappingRule(oClip.FullName + ".ActionClip",oParam,"frame",i+1)

    		break

    Application.LogMessage("The expression associated with the posy item is " +oCurrMappedItem.ClipEffectItem.Expression)