text多条件过滤gf_condition

/**

            Retrun Type ： string    

            Argument Name    as_tj[] 

*/

long count,i
string ls_filter

count=upperbound(as_tj)
if count<=0 then return ''
//单个过滤条件
if trim(as_tj[1])<>'' and not isnull(as_tj[1]) then ls_filter=as_tj[1]
//多个过滤条件
for i=2 to count
    if trim(as_tj[i])<>'' and not isnull(as_tj[i]) then
             if ls_filter<>'' then
                     ls_filter=ls_filter+" and ("+as_tj[i]+")"
            else
                  ls_filter="("+as_tj[i]+")"
            end if
     end if
next

return ls_filter

// 使用例子

// function  :  wf_Filter()  

// 使用Event ID  pbm_enchange

string ls_filter
//模糊查找   
ls_filter=sle_1.text
if ls_filter='' or isnull(ls_filter) or ls_filter= '...' then
is_filter[1]=""
else
      is_filter[1]="((upper( dw_field) like '%"+upper(ls_filter)+"%'))"

end if

dw_orig.setfilter(gf_condition(is_filter))
dw_orig.filter()