Solution
We use the function module /guixt/read_searchhelp_values and the Open Call Interface.

Example
The user selects the sales unit,  order reason, customer price group and sales office via dropdown lists:

For each field, the value list can be read from the respective SAP search help:

The name of the searchhelp can be found in the SAP data dictionary (transaction SE11):

You can test the searchhelp in SE11:

We read these values via the function "/guixt/read_searchhelp_values":

Set V[searchhelp] "H_TVAU"

CreateTable V[dropdowntable] value text

Call "/guixt/read_searchhelp_values" cache="session" _ 

  export.searchHelp="searchhelp" _

  import.values="dropdowntable"

To facilitate reuse of the dropdown lists in other screens while keeping the scripts simple, we implement a separate "process" script for each dropdown list:

GuiXT Script

// get dropdown value lists

process read_dropdown_vrkme  V[dropdown_vrkme] 

process read_dropdown_augru  V[dropdown_augru] 

process read_dropdown_konda  V[dropdown_konda] 

process read_dropdown_vkbur  V[dropdown_vkbur] "1710" "10" "00" 

 

// Sales unit

Text  (16,45)  "Sales unit"  size=20  -label

DropDownList (16,66) table=V[dropdown_vrkme] refer="V[vrkme]" width=40 -showKeys

 

// Order reason

Text  (17,45)  "Order reason"  size=20  -label

DropDownList (17,66) table=V[dropdown_augru] refer="V[augru]" width=40 

 

// Price group

Text  (18,45)  "Customer price group"  size=20  -label

DropDownList (18,66) table=V[dropdown_konda] refer="V[konda]" width=40 

 

// Sales office

Text  (19,45)  "Sales office"  size=20  -label

DropDownList (19,66) table=V[dropdown_vkbur] refer="V[vkbur]" width=40 

InputScript "process_read_dropdown_vrkme.txt"

// read searchhelp for sales unit

Parameter dropdowntable 

Set V[searchhelp] "H_T006"

Set V[columns] "msehi,msehl"

CreateTable V[dropdowntable] value text

Call "/guixt/read_searchhelp_values" cache="session" _

  export.searchHelp="searchhelp" _

  export.columns="columns" _

  import.values="dropdowntable"

Return

InputScript "process_read_dropdown_augru.txt"

// read searchhelp for order reason

Parameter dropdowntable

Set V[searchhelp] "H_TVAU"

CreateTable V[dropdowntable] value text

Call "/guixt/read_searchhelp_values" cache="session" _

  export.searchHelp="searchhelp" _

  import.values="dropdowntable"

Return

InputScript "process_read_dropdown_vkonda.txt"

// read searchhelp for customer price group

Parameter dropdowntable

Set V[searchhelp] "H_T188"

CreateTable V[dropdowntable] value text

Call "/guixt/read_searchhelp_values" cache="session" _

  export.searchHelp="searchhelp" _

  import.values="dropdowntable"

Return

InputScript "process_read_dropdown_vkbur.txt"

// read searchhelp for sales office

Parameter dropdowntable

Parameter vkorg

Parameter vtweg

Parameter spart


Set V[searchhelp] "H_TVKBZ"

Set V[columns] "vkbur,bezei"


// add selections

CreateStructure V[seloptrow] shlpfield sign option low high

CreateTable V[selopt] include=V[seloptrow]


if V[vkorg]

  Set V[seloptrow.shlpfield] "VKORG"

  Set V[seloptrow.sign] "I"

  Set V[seloptrow.option] "EQ"

  Set V[seloptrow.low] "&V[vkorg]"

  AppendRow V[seloptrow] table=V[selopt]

endif


if V[vtweg]

  Set V[seloptrow.shlpfield] "VTWEG"

  Set V[seloptrow.sign] "I"

  Set V[seloptrow.option] "EQ"

  Set V[seloptrow.low] "&V[vtweg]"

  AppendRow V[seloptrow] table=V[selopt]

endif


if V[spart]

  Set V[seloptrow.shlpfield] "SPART"

  Set V[seloptrow.sign] "I"

  Set V[seloptrow.option] "EQ"

  Set V[seloptrow.low] "&V[spart]"

  AppendRow V[seloptrow] table=V[selopt]

endif


CreateTable V[dropdowntable] value text


Call "/guixt/read_searchhelp_values" cache="session" _

  export.searchHelp="searchhelp" _

  export.columns="columns" _

  export.selopt="selopt" _

  import.values="dropdowntable"


Return

Components InputAssistant