Java WD table attributes

[Former Member]

Hello all,

I'll explain the issue first:

I made a screen where I can search some Business Partners (via RFC). Each time I push the "Search" button I get a result table with my Business Partners. But when I go to the next pages of my result table and then push "Back" and search again, the result table is on the page I last visited.

The question is obvious: how can I have the first page instead of the last page I visited.

I know there's a table property "firstVisibleRow" but I don't know how to get and set it. BTW, it is set on 0.

I found that there's an interface that has methods to bind and set the first visible row (see link) but when I want to implement it (public class Anything implements IWDTable) it doesn't work. I don't know the import I have to make to be possible to implement this interface.

[http://help.sap.com/javadocs/NW04/current/wd/com/sap/tc/webdynpro/clientserver/uielib/standard/api/IWDTable.html#getFirstVisibleRow()]

I thought I could put the correct code that is setting the "firstVisibleRow" to zero in the wdDoInit()-method and thus call it every time the page is called. Would this be OK or shouldI solve the issue in another way?

Kr,

RS

[nikhil_bose · Accepted solution]

hi Rob,

try

 
wdContext.nodePartners().setLeadSelection( 0);

or go to context - node properties, set initializeLeadSelection to false

plz let me know the status.

[Former Member · Accepted solution]

It doesn't work. I tested it also by setting some other integer in setLeadSelection (for example: wdContext.nodePartners().setLeadSelection( 6);). The first time it works and the requested row is displayed but the next time I perform the search, the first row of the table is selected but the last page you visited is displayed (and not the one with the lead selection thus).

Should I place the functionality in another method than wdDoInit()?

Thanks,

RS

[Former Member · Accepted solution]

Please read my post and set the context attribute to the desired row index in the action handler that reads the new table data.

Armin

[Former Member · Accepted solution]

Armin,

I created a Value Node (FirstRowNode) and a value attribute (FirstRowAttr, type integer) and assigned FirstRowNode.FirstRowAttr as value for the attribute firstVisibleRow from my table.

I call the value attribute like this in my wdDoInit() method: this.wdContext.currentFirstRowNodeElement().setFirstRowAttr(0);

I get a NullPointerException in my application even if I try to place it in the OnActionGoBack() method linked to my "Back" button.

Greetz and thanks allready,

RS

[Former Member · Accepted solution]

Either put the attribute directly under the context root, or give the value node cardinality=1:1, selection=1:1.

Armin

[Former Member · Accepted solution]

Thank you very much for your help!

[Former Member]

To control the first visible row you have to create a context attribute A (integer), bind the "firstVisibleRow" property of the Table UI element to A and set the value of A to the index (zero-based) of the row.

Armin