By default, the ValueToOffsetY property is empty. If the ValueToOffsetY property is empty, missing or invalid it has no effect. If the ValueToOffsetY property is valid, the result of evaluation of it, indicates the value of the OffsetY property, while the OnDrag property is exDoMove. The OffsetYValid property limits / validates the y-offset value of the layer. The OffsetX / OffsetY property specifies the (x,y)-position of the layer, relative to the upper-left corner of the control. The Change event occurs when the layer's Value property is changed. During the Change event, you can change values of other layers as well. For instance, if the second-hand of the clock is rotated, you can rotate the hour and the minute-hands of the clock as well. The ValueToOffsetX property specifies the expression to convert the value to x-offset. Use the DefaultLayer(exDefLayerValueToOffsetY) property to specify the default value for the ValueToOffsetY property, before adding the layer.

For instance:

• the control shows a switch, so the value could indicate the state of the switch
• the control shows a thermometer, so the value could be the current temperature

For instance:

• "0", no vertical move, or assigns always 0 to OffsetY property 
• "value / 2", specifies half of the layer's Value
• "value = 0 ? 0 : 48", indicates that the OffsetY property is 0 if the layer's Value is 0 or 48 if different than 0

The ValueToOffsetY property supports the following keywords:

• value keyword indicates the layer's Value property.

Also, this property supports all constants, operators and functions defined here.

The Value property indicates the value keyword in the following properties:

• ValueToOffsetX, Specifies the expression to convert the value to x-offset. The layer's OffsetX property is the result of evaluating the ValueToOffsetX expression, while the OnDrag property is exDoMove. The OffsetToValue converts the current offset to a value.
• ValueToOffsetY, Specifies the expression to convert the value to y-offset. The layer's OffsetY property is the result of evaluating the ValueToOffsetY expression, while the OnDrag property is exDoMove. The OffsetToValue converts the current offset to a value.
• ValueToRotateAngle, Specifies the expression to convert the value to rotating angle. The layer's RotateAngle property is the result of evaluating the ValueToRotateAngle expression, while the OnDrag property is exDoRotate or exDoRotamove. The RotateAngleToValue converts the current rotation angle to a value.

The Value property works in association with the layer's OnDrag property like follows:

• If the OnDrag property is exDoMove, evaluating the ValueToOffsetX property indicates the layer's OffsetX property.
• If the OnDrag property is exDoMove, evaluating the ValueToOffsetY property indicates the layer's OffsetY property.
• If the OnDrag property is exDoRotate or exDoRotamove, evaluating the ValueToRotateAngle property indicates the layer's RotateAngle property.