sql server - Error assigning pass through query to report recordsource in VBA code -

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i have following code :

    private sub report_open(cancel integer)       on error goto errorhandler         dim isptqueryexists integer     isptqueryexists = isquery("mytestquery")     if isptqueryexists = -1     set qdf = currentdb.querydefs("mytestquery")     qdf.sql ="my sql query"      me.recordsource = "mytestquery"     end if     else     dim databasename string     dim servername string     servername = "xxxx"     databasename = "xxxx"     set qdf = currentdb.createquerydef("mytestquery")     strconnectionstring = "xxxx"      qdf.connect = strconnectionstring    qdf.sql = "my sql query"    me.recordsource = "mytestquery" end if errorhandler:  msgbox err.description end sub  ********************************************************       ' function: istablequery()       '       ' purpose: determine if table or query exists.       '       ' arguments:       '   dbname: name of database. if database name       '           "" current database used.       '    tname: name of table or query.       '       ' returns: true (it exists) or false (it not exist).       '       '********************************************************       function isquery(qname string) integer       dim found integer       dim queryname string       const name_not_in_collection = 3265          ' assume table or query not exist.          found = false          ' trap errors.          on error resume next          ' see if name in queries collection.          queryname = currentdb.querydefs(qname$).name          if err <> name_not_in_collection found = true          isquery = found       end function

i have report . i trying set record source of query dynamically vba code pass through query .

i dont have query def created @ design time , not specifying record source report , design time

in code , checking if query def exists , if , changing sql property of , setting record source .

if query def not available , creating new 1 setting record source.

the problem here : whenever execute code , showing error:

"item not found in collection" . if click on ok button of message box continues run , displays report .

but , not sure why error occuring ,and why code not failing error ?

any thoughts on this? . have put lot of efforts tounderstand in vain

updated :

if dont use error handler , not throwing exception


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