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XBROWSE Column Question
Posted: Wed May 03, 2023 10:03 pm
by Jimmy
hi,
how can i "optimize" Column wide (STRETCHCOL_WIDEST)
how can i SET Cursor into 5th Column (also when outside Screen)
Re: XBROWSE Column Question
Posted: Thu May 04, 2023 10:08 am
by nageswaragunupudi
how can i "optimize" Column wide (STRETCHCOL_WIDEST)
:nStretchCol := STRETCHCOL_LAST
Stretches the last column to fit the GridWidth
:nStretchCol := STRETCHCOL_WIDEST
Further stretches the widest character column to fit the GridWidth.
:nStretchCol := nCol
Similarly, stretches the column whose nCreationOrder is the same as nCol.
how can i SET Cursor into 5th Column (also when outside Screen)
Code: Select all | Expand
oBrw:nSelCol := 5
oBrw:RefreshCurrent()
[/col]
or use :GoToCol( oCol )
oCol can be creationorder / header / column object
[code]
oBrw:GoToCol( 5 )
But we can go to only a column which is already visible on the screen. (not hidden or outside the grid width)
Re: XBROWSE Column Question
Posted: Thu May 04, 2023 11:02 am
by Jimmy
hi,
nageswaragunupudi wrote:But we can go to only a column which is already visible on the screen. (not hidden or outside the grid width)
thx for Answer
is there a Way to "scroll" horizontal by CODE
Re: XBROWSE Column Question
Posted: Thu May 04, 2023 2:02 pm
by nageswaragunupudi
oBrw:GoRight() // one column to the right
oBrw:GoRightMost() // go to last column
Re: XBROWSE Column Question
Posted: Fri May 05, 2023 4:05 am
by Jimmy
hi,
nageswaragunupudi wrote:oBrw:GoRight() // one column to the right
oBrw:GoRightMost() // go to last column
ok, thx for Answer
Re: XBROWSE Column Question
Posted: Fri May 05, 2023 7:08 am
by Jimmy
hi,
after Answer of Method
Code: Select all | Expand
oBrw:GoRight() // one column to the right
oBrw:GoRightMost() // go to last column
i have search for "more"
there is a
but no Sample how to use it ...
it seem this CODE work
---
when switch ORDSETFOCUS() or SET INDEX TO i try to find Column in XBROWSE
when have NO "own" Header it will display Name of FIELD in Header
in this case this CODE will work where i use INDEXKEY() or OrdKey() to look which FIELD is used
Code: Select all | Expand
STATIC FUNCTION FindColumnHeader( oBro )
LOCAL aHeaders := {}
LOCAL nPosi := 0
LOCAL n, cSeek, aToken
aToken := AtInside( "+", INDEXKEY() ) // -> hb_ATokens()
// get rid of Function like UPPER() in IndexKey()
cSeek := StripFunc( aToken[ 1 ] )
FOR n := 1 TO LEN( oBro:aCols )
AADD( aHeaders, oBro:aCols[ n ] :cHeader )
NEXT
// seek in Header if FIELD match
nPosi := ASCAN( aHeaders, { | x | x = cSeek } )
IF nPosi > 0
// jump to Column
oBro:GoToCol(oBro:aCols[nPosi])
ENDIF
RETURN nPosi
Code: Select all | Expand
STATIC FUNCTION StripFunc( cSeek )
LOCAL cRet := UPPER( cSeek )
LOCAL aToken
cRet := STRTRAN( cRet, "UPPER(", "" )
cRet := STRTRAN( cRet, "DTOS(", "" )
cRet := STRTRAN( cRet, "STRZERO(", "" )
cRet := STRTRAN( cRet, "STR(", "" )
cRet := STRTRAN( cRet, ")", "" )
IF "->" $ cRet
aToken := AtInside( "->", cRet )
cRet := aToken[LEN(aToken)]
ENDIF
IF "," $ cRet
aToken := AtInside( ",", cRet )
cRet := aToken[1]
ENDIF
RETURN cRet
p.s. what is better to use INDEXKEY() or OrdKey()
Re: XBROWSE Column Question
Posted: Sat May 06, 2023 2:03 am
by nageswaragunupudi
in this case this CODE will work where i use INDEXKEY() or OrdKey() to look which FIELD is used
Code: Select all | Expand
SET ORDER TO TAG "CITY"
nCol := AScan( oBrw:aCols, { |oCol| oCol:cSortOrder == OrdSetFocus() } )
? nCol
oCol := oBrw:aCols[ nCol ]
? oCol:nCreationOrder, oCol:cHeader, c:cExpr
// or even better
XBROWSER oCol
Even if cHeader is different from the field name, oCol:cExpr contains the field name.
Now there is a short-cut.
Instead of writing this long code:
Code: Select all | Expand
nCol := AScan( oBrw:aCols, { |oCol| oCol:cSortOrder == OrdSetFocus() } )
oCol := oBrw:aCols[ nCol ]
We can simply write
Code: Select all | Expand
oCol := oBrw:oCol( "cSortOrder", OrdSetFocus() )
XBROWSER oCol
Re: XBROWSE Column Question
Posted: Sat May 06, 2023 2:05 am
by nageswaragunupudi
p.s. what is better to use INDEXKEY() or OrdKey()
OrdKey()
Re: XBROWSE Column Question
Posted: Sat May 06, 2023 2:09 am
by nageswaragunupudi
STATIC FUNCTION StripFunc( cSeek )
XBrowse automatically uses similar logic to indentify which INDEX/ORDER to be used for which column and stores the INDEXNAME in the data oCol:cSortOrder, while initially building the browse.
XBrowse uses this information to do AutoSort
Re: XBROWSE Column Question
Posted: Mon May 08, 2023 12:47 pm
by Jimmy
hi,
nageswaragunupudi wrote:XBrowse automatically uses similar logic to indentify which INDEX/ORDER to be used for which column and stores the INDEXNAME in the data oCol:cSortOrder, while initially building the browse.
XBrowse uses this information to do AutoSort
what about Function in Indexkey() like STRZERO()
it does work when have FIELD only but fail when have Function(FIELD), or
Re: XBROWSE Column Question
Posted: Mon May 08, 2023 1:51 pm
by nageswaragunupudi
what about Function in Indexkey() like STRZERO()
Works
but fail when have Function(FIELD)
Does not fail. It works.
Re: XBROWSE Column Question
Posted: Mon May 08, 2023 3:29 pm
by Jimmy
hi,
FUNCTION FindColumnHeader() is NOT for "increment" Seek, it is to place Cursor on Header which meet IndexKey()
i can´t find e.g. STRZERO, in RddIncrSeek(), of XBROWSE ... but it seems to work ,,, how can it work ... hm
Re: XBROWSE Column Question
Posted: Tue May 09, 2023 9:44 am
by nageswaragunupudi
Do you want to find the column object that is currently sorted on the ordsetfocus() ?
oBrw:oSortCol --> Currently sorted column obect. i.e., the column sorted on the ordsetfocus()
We can now get anything
oBrw:oSortCol:cHeader
oBrw:oSortCol:cExpr // field name
With XBrowse, most of the times, we do not have to write any special code.
Re: XBROWSE Column Question
Posted: Tue May 09, 2023 8:35 pm
by Jimmy
hi,
thx for Answer
nageswaragunupudi wrote:Do you want to find the column object that is currently sorted on the ordsetfocus() ?.
YES
nageswaragunupudi wrote:Code: Select all | Expand
oBrw:oSortCol --> Currently sorted column obect. i.e., the column sorted on the ordsetfocus()
We can now get anything
oBrw:oSortCol:cHeader
oBrw:oSortCol:cExpr // field name
With XBrowse, most of the times, we do not have to write any special code.
it work when have "only" FIELD Name but seems not when have Function "in" INDEXKEY() / Ordkey()
so i "strip" all of String to get FIELD Name "only"
---
more Question :
how is the Syntax to use "Header - click" to SET Order / TAG
in METHOD SetOrder( lSort ) i found OrdDescend()
how does OrdDescend() work
when usig OrdWildSeek() in XBROWSE how to "continue"
i did not found a 2nd OrdWildSeek() or a loop
Re: XBROWSE Column Question
Posted: Wed May 10, 2023 12:12 am
by nageswaragunupudi
it work when have "only" FIELD Name but seems not when have Function "in" INDEXKEY() / Ordkey()
so i "strip" all of String to get FIELD Name "only"
I suggest this function, which can handle index key of any complexity.
If more than one field is used in the key expression, it returns the field name which occurs first in the key.
Code: Select all | Expand
function FieldInKey( cKey )
local aStruct := DBSTRUCT()
local n := 1
local cToken, cSep, nAt
cKey := Upper( cKey )
cKey := StrTran( StrTran( cKey, "->", '!' ), '=', '!' )
cKey := CharRem( " ", cKey )
do while !Empty( cToken := TOKEN( cKey, nil, n, nil, nil, @cSep ) )
if !( cSep $ "!(" )
if ( nAt := AScan( aStruct, { |a| a[ 1 ] = cToken } ) ) > 0
return aStruct[ nAt, 1 ]
endif
endif
n++
enddo
return ""
Please test with any complex expression and see if it fails.