# IsDropSource Element

Specifies whether the shape can be added to a group by dropping it onto the group.

Value | Description
--- | ---
0 | Cannot add the shape to the group.
1 | Can add the shape to the group by dropping it onto the group.

## Syntax

    <IsDropSource>
        [Unit]
        [F]
        [Err]>
    </IsDropSource>

## Attributes

Unit

Optional string. Represents a unit of measure. The default is BOOL. For details about BOOL, see Units of measure.

F

Optional string. Represents the element's formula. This attribute can contain one of the following strings: "someFormula" if the formula exists locally, "No Formula" if the formula is locally deleted or blocked, or "Inh" if the formula is inherited.

If the attribute is not present, the element's formula is a simple constant, for example, <element>5</element>.

Err

Optional string. Indicates that the formula evaluates to an error. The value of Err is the current value (an error message string); the value of the element is the last valid value.

## Element properties

Property | Value
--- | ---
Name | IsDropSource
Minimum Occurrences | 0
Maximum Occurrences | 1

## Element information

Parent elements

Misc

Child elements

None

## Remarks

In addition to enabling this behavior for a shape, you must also enable a group to accept shapes that are dropped onto it. To do this, specify the IsDropTarget element of the group as 1.

The IsDropSource element is relevant only when contained in a Shape element. It is ignored when contained in a DocumentSheet, PageSheet, or StyleSheet element.

## See also

IsDropSource cell (Miscellaneous section)

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