Dropdown By Key

[Former Member]

Hi All,

I could not get the difference between Dropwdown By Index and Key. Please help me to understand the usage.

Regards,

Kumar K

[Former Member]

hi,

just go thru this link

http://help.sap.com/saphelp_nw70ehp1/helpdata/en/dd/b0884118aa1709e10000000a155106/content.htm and also refer the standard component: WDR_TEST_EVENTS.

[uday_gubbala2]

Hi Kumar,

As a reference you can try go through this [free sample version|http://www.sap-press.de/download/dateien/1079/sappress_web_dynpro_for_abap.pdf] of Ulli Hoffman's textbook Web Dynpro For ABAP. Go through section 3.3.1 "Using Dropdown Lists". Hope that this helps resolve your problem.

Regards,

Uday

[uday_gubbala2]

Hi Kumar,

Dropdown by index & key differ in the nature of binding properties. Just have a look at the info below:

Index Binding:

1) Selecting a value leads to a round trip only if the corresponding event property is bound to an action.

2) Selecting a value will change the lead selection.

3) The data stored in the context will not be changed by selecting any value.

Key Binding:

1) Selecting a value leads to a round trip only if the corresponding event property is bound to an action.

2) Selecting a value will not change the lead selection.

3) The data stored in the context element at lead selection will be overwritten by the key value related to the selected data.

Regards,

Uday

[arjun_thakur]

Hi

Refer these online help:[DropDownByIndex|http://help.sap.com/saphelp_nw70ehp1/helpdata/en/dd/b0884118aa1709e10000000a155106/content.htm], [DropDownByKey|http://help.sap.com/saphelp_nw70ehp1/helpdata/en/c5/e4884180951809e10000000a155106/content.htm].

Also refer the standard component WDR_TEST_EVENTS.

I hope it helps.

Regards

Arjun