How to get index of selected image??

hi all
I have a set of images that is displayed for the user and when he choose one image click on it and it will do sime action ... these images are stored in an array of images . How can i know the index of selected image ??

i woul like to append an array of images in the screen and whenever i choose one of this images it link me to the class

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please,help me.

That information is not required to be stored in the PDF. It present, it could be present in the XMP-based metadata of the image.
Consult ISO 32000-1, ISO 16684-1 and the XMP specification for details.

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Is anyone know how to get the old selection index/value in the ListSelectionListener valueChanged() method? The list.selectedValue() always return the same value which is the new selection. The ListSelectionEvent.getFirstIndex() and getLastIndex are always firstIndex <= lastIndex so that you cant' tell which one is the old selection.
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Just test the two indexes (first and last): if the corresponding row is selected, then the other is unselected. That gives you the old (unselected) and new (selected) item.
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Hi,
In the action method for onSelect try using,
DATA:
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DATA:
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field-symbols: <fs_value> type any. "Attribute value in events table
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read table lt_events into ls_events with key name = 'TABSTRIPID'.
if sy-subrc eq 0.
 assign ls_events-value->* to <fs_value>.
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 endif.
endif.
Hope it helps!
Regards,
Radhika,

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How to utilize index in selection statement

hi
how to utilize index in selection statement and how is it reduces performance whether another alternative is there to reduce performance .
thanks

Hi Suresh,
For each SQL statement, the database optimizer determines the strategy for accessing data records. Access can be with database indexes (index access), or without database indexes (full table scan).The cost-based database optimizer determines the access strategy on the basis of:
*Conditions in the WHERE clause of the SQL statement
*Database indexes of the table(s) affected
*Selectivity of the table fields contained in the database indexes
*Size of the table(s) affected
*The table and index statistics supply information about the selectivity of table fields, the selectivity of combinations of table fields, and table size. Before a database access is performed, the database optimizer cannot calculate the exact cost of a database access. It uses the information described above to estimate the cost of the database access.The optimization calculation is the amount by which the data blocks to be read (logical read accesses) can be reduced. Data blocks show the level of detail in which data is written to the hard disk or read from the hard disk.
Inroduction to Database Indexes
When you create a database table in the ABAP Dictionary, you must specify the combination of fields that enable an entry within the table to be clearly identified. Position these fields at the top of the table field list, and define them as key fields.
After activating the table, an index is created (for Oracle, Informix, DB2) that consists of all key fields. This index is called a primary index. The primary index is unique by definition. As well as the primary index, you can define one or more secondary indexes for a table in the ABAP Dictionary, and create them on the database. Secondary indexes can be unique or non-unique. Index records and table records are organized in data blocks.
If you dispatch an SQL statement from an ABAP program to the database, the program searches for the data records requested either in the database table itself (full table scan) or by using an index (index unique scan or index range scan). If all fields requested are found in the index using an index scan, the table records do not need to be accessed.
A data block shows the level of detail in which data is written to the hard disk or read from the hard disk. Data blocks may contain multiple data records, but a single data record may be spread across several data blocks.
Data blocks can be index blocks or table blocks. The database organizes the index blocks in the form of a multi-level B* tree. There is a single index block at root level, which contains pointers to the index blocks at branch level. The branch blocks contain either some of the index fields and pointers to index blocks at leaf level, or all index fields and a pointer to the table records organized in table blocks. The index blocks at leaf level contain all index fields and pointers to the table records from the table blocks.
The pointer that identifies one or more table records has a specific name. It is called, for example, ROWID for Oracle databases. The ROWID consists of the number of the database file, the number of the table block, and the row number within the table block.
The index records are stored in the index tree and sorted according to index field. This enables accelerated access using the index. The table records in the table blocks are not sorted.
An index should not consist of too many fields. Having a few very selective fields increases the chance of reusability, and reduces the chance of the database optimizer selecting an unsuitable access path.
Index Unique Scan
If, for all fields in a unique index (primary index or unique secondary index), WHERE conditions are specified with '=' in the WHERE clause, the database optimizer selects the access strategy index unique scan.
For the index unique scan access strategy, the database usually needs to read a maximum of four data blocks (three index blocks and one table block) to access the table record.
select * from VVBAK here vbeln = '00123' ......end select.
In the SELECT statement shown above, the table VVBAK is accessed. The fields MANDT and VBELN form the primary key, and are specified with '=' in the WHERE clause. The database optimizer therefore selects the index unique scan access strategy, and only needs to read four data blocks to find the table record requested.
Index Range Scan
select * from VVBAP here vbeln = '00123' ......end select.
In the example above, not all fields in the primary index of the table VVBAP (key fields MANDT, VBELN, POSNR) are specified with '=' in the WHERE clause. The database optimizer checks a range of index records and deduces the table records from these index records. This access strategy is called an index range scan.
To execute the SQL statement, the DBMS first reads a root block (1) and a branch block (2). The branch block contains pointers to two leaf blocks (3 and 4). In order to find the index records that fulfill the criteria in the WHERE clause of the SQL statement, the DBMS searches through these leaf blocks sequentially. The index records found point to the table records within the table blocks (5 and 6).
If index records from different index blocks point to the same table block, this table block must be read more than once. In the example above, an index record from index block 3 and an index record from index block 4 point to table records in table block 5. This table block must therefore be read twice. In total, seven data blocks (four index blocks and three table blocks) are read.
The index search string is determined by the concatenation of the WHERE conditions for the fields contained in the index. To ensure that as few index blocks as possible are checked, the index search string should be specified starting from the left, without placeholders ('_' or %). Because the index is stored and sorted according to the index fields, a connected range of index records can be checked, and fewer index blocks need to be read.
All index blocks and table blocks read during an index range scan are stored in the data buffer at the top of a LRU (least recently used) list. This can lead to many other data blocks being forced out of the data buffer. Consequently, more physical read accesses become necessary when other SQL statements are executed
DB Indexex :Concatenation
In the concatenation access strategy, one index is reused. Therefore, various index search strings also exist. An index unique scan or an index range scan can be performed for the various index search strings. Duplicate entries in the results set are filtered out when the search results are concatenated.
Select * from vvbap where vbeln in ('00123', '00133', '00134').
endselect.
In the SQL statement above, a WHERE condition with an IN operation is specified over field VBELN. The fields MANDT and VBELN are shown on the left of the primary index. Various index search strings are created, and an index range scan is performed over the primary index for each index search string. Finally, the result is concatenated.
Full Table Scan
select * from vvbap where matnr = '00015'.
endselect
If the database optimizer selects the full table scan access strategy, the table is read sequentially. Index blocks do not need to be read.
For a full table scan, the read table blocks are added to the end of an LRU list. Therefore, no data blocks are forced out of the data buffer. As a result, in order to process a full table scan, comparatively little memory space is required within the data buffer.
The full table scan access strategy is very effective if a large part of a table (for example, 5% of all table records) needs to be read. In the example above, a full table scan is more efficient than access using the primary index.
In Brief
Index unique scan: The index selected is unique (primary index or unique secondary index) and fully specified. One or no table record is returned. This type of access is very effective, because a maximum of four data blocks needs to be read.
Index range scan: The index selected is unique or non-unique. For a non-unique index, this means that not all index fields are specified in the WHERE clause. A range of the index is read and checked. An index range scan may not be as effective as a full table scan. The table records returned can range from none to all.
Full table scan: The whole table is read sequentially. Each table block is read once. Since no index is used, no index blocks are read. The table records returned can range from none to all.
Concatenation: An index is used more than once. Various areas of the index are read and checked. To ensure that the application receives each table record only once, the search results are concatenated to eliminate duplicate entries. The table records returned can range from none to all.
Regards,
Balaji Reddy G
***Rewards if answers are helpful

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I am using below method, but not getting any result from this method.
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please suggest any methods are avaliable to get selected index?
Thanks & Regards
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Hi Venkat,
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Also I need to get only the selected area in a particular layer. When I checked FilterRecordPtr, haveMask flag is TRUE if the part of the layer is selected. But how do I get only the part of the layer that is selected for displaying preview image?
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Thanks Tom Ruark for the response.
That is exactly the same thing what I'm seeing.
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We are implementing ECC6.0
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I do comparison in current 4.7 and ECC6.0 systems (I have SAP_ALL and SAP_NEW in both systems).
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Hi,
The reports are modified if am right as of ECC 5.0. Refer to note - 747469 which gives a list of all reports modified.
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<GuidSymbol name="guidTeamExplorerBuildDefContextMenu" value="{34586048-8400-472E-BBBF-3AE30AF8046E}" >
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Microsoft.TeamFoundation.Build.Controls.dl
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I need to get result of select from a stored function.
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Hi,
A function can only return one value, but it sounds like you want to return 4 values.
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Regards,
Sastry Vadlamani
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National Instruments
Attachments:
test.vi ‏27 KB

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How to get index of selected image??

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