Drag and Drop

ALV as a DragSource

You can enable the ALV as DragSource by adding a DragSourceInfo to the ALV. The enduser is then able to drag the selected rows to a drop target. Note that every row selected is dragged.

You can make the following settings:

• Create a DragSourceInfo

• Get the DragSourceInfo

• Set and get information about a DragSourceInfo

• Delete the DragSourceInfo

Create a DragSourceInfo

To generate a DragSourceInfo, you use the methods of interface class IF_SALV_WD_DRAG_AND_DROP (implementing class CL_SALV_WD_CONFIG_TABLE).

Get the DragSourceInfo

To be able to modify properties of the DragSourceInfo, you must first call the GET_DRAG_SOURCE_INFO method of interface class IF_SALV_WD_DRAG_AND_DROP (implementing class CL_SALV_WD_CONFIG_TABLE).

Set and get information about a DragSourceInfo

A DragSourceInfo has the following properties:

• DATA

  When an object is dropped, an event is triggered and DragSourceInfo.data is passed as the event parameter DATA. In the case of ALV for Web Dynpro ABAP, the application must specify at this point the ALV from which the object was dropped. The application can then ask the ALV context of that ALV for the current selections in the implementation of the ON_DROP event in the DropTarget.

• ENABLED

  The enabled flag enables or disables the DragSourceInfo. That way you can specify whether the ALV can be used for a drag operation.

• TAGS

  To define which drag source can be moved to which drag target, specify the corresponding string (same name) in the tag property of the relevant DragSourceInfo and DropTargetInfo. You can also use multiple tags. You separate the tags with blank spaces. The system does not differentiate between uppercase and lowercase letters in tags. You can use an asterisk (*) as a wild card at the end of the tags for example, grid*. You may not use the following characters: Colon (:) Comma (,) Semicolon (;) Backslash (\) Slash (/) Point (.)

For retrieving and setting properties of the DragSourceInfo, you use methods from interface class IF_SALV_WD_DRAG_SOURCE_INFO.

Delete the DragSourceInfo

To delete the DragSourceInfo you previously defined, you use the method of interface class IF_SALV_WD_DRAG_AND_DROP (implementing class CL_SALV_WD_CONFIG_TABLE).

ALV as a DropTarget

You can enable the ALV as Drop Target by adding one or more DropTargetInfos to the ALV.

The ALV supports only dropping items on a table row.

The enduser is then able to drop an item onto a row of an ALV.

You can make the following settings:

• Create a Row-DropTargetInfo

• Get Row-DropTargetInfos

• Set and get information about a Row-DropTargetInfo

• Delete Row-DropTargetInfo

Create a Row-DropTargetInfo

To generate a RowDropTargetInfo, you use the methods of interface class IF_SALV_WD_DRAG_AND_DROP (implementing class CL_SALV_WD_CONFIG_TABLE).

Get Row-DropTargetInfos

To be able to modify properties of a Row-DropTargetInfo, you must first call the get method of interface class IF_SALV_WD_DRAG_AND_DROP (implementing class CL_SALV_WD_CONFIG_TABLE).

Set and get information about a Row-DropTargetInfo

A DropTargetInfo has the following properties:

• ENABLED

  The enabled flag enables or disables the Row-DropTargetInfo. That way you can specify whether the ALV can make use of this Row-DropTargetInfo for a drop operation.

• NAME

  Name of a Row-DropTargetInfo.

• TAGS

  To define which drag source can be moved to which drag target, specify the corresponding string (same name) in the tag property of the relevant DragSourceInfo and DropTargetInfo. You can also use multiple tags. You separate the tags with blank spaces. The system does not differentiate between uppercase and lowercase letters in tags. You can use an asterisk (*) as a wild card at the end of the tags for example, grid*. You may not use the following characters: Colon (:) Comma (,) Semicolon (;) Backslash (\) Slash (/) Point (.)

For retrieving and setting properties of the DragSourceInfo, you use methods from interface class IF_SALV_WD_DRAG_SOURCE_INFO.

Specifying which Row-DropTargetInfos can be used for dropping onto rows

You specify which DropTargetInfo can be used for which row in the ALV as follows: You either define exactly one DropTargetInfo in the method SET_DROP_ROW_NAME; or you tell the ALV the fieldname, in which the name of each DropTargetInfo for each row in the ALV is stored.

Deleting Row-DropTargetInfos

To delete the Row-DropTargetInfos you previously defined, you use the methods of interface class IF_SALV_WD_DRAG_AND_DROP (implementing class CL_SALV_WD_CONFIG_TABLE).