sql - Select Statement with Variable not working C# -


i have done bunch of select statements addwithvalue's , add's 1 can't seem work. works fine when put number in instead of @ordernum. tried @ordernum , '@ordernum' when put '' nothing happens on button click when use @ordernum says can't find ordernum in table. value in sql table char bit data maybe has it? ideas?

end of select statement:

where poitem.ordno  = @ordernum

add : 

cmd.parameters.add(new oledbparameter("@ordernum", potextbox.text));

the entire select statement (the resulting big c# string concatenated smaller chunks):

"select      cast(poitem.itnbr char(15) ccsid 37) itemno,      cast(poitem.itdsc char(15) ccsid 37) itdsc,      cast(poitem.house char(15) ccsid 37) hou,      cast(poitem.refno char(15) ccsid 37) ref,      cast(poitem.staic char(15) ccsid 37) staic,     poitem.qtyor,     cast(poitem.unmsr char(15) ccsid 37) unmsr,     poitem.umcnv,     poitem.dkqty,     poitem.stkqt,     cast(poitem.jobno char(15) ccsid 37) job,     cast(poitem.dptno char(15) ccsid 37) dept,      cast(poitem.vclnb char(15) ccsid 37) vclnb,      cast(poitem.whslc char(15) ccsid 37) whsloc,     poitem.ucorq,      cast(poitem.blcod char(15) ccsid 37) blcod,      cast(pomast.vndnr char(15) ccsid 37) vendor,      cast(pomast.pstts char(15) ccsid 37) pstts,     cast(vennam.vname char(15) ccsid 37) vname,      cast(overrd.bname char(15) ccsid 37) bname  pomast  left outer join poitem on pomast.ordno = poitem.ordno left outer join overrd on pomast.ordno = overrd.ordno left outer join vennam on pomast.vndnr = vennam.vndnr  poitem.ordno = @ordernum"

you said able put number instead of @ordernum, mean store integer order numbers in char bit data column type or can there order numbers like: po1234?

as others have suggested need convert line:

where poitem.ordno  = @ordernum

to 

where poitem.ordno = ?

and set parameter if poitem.ordno column contains integers no alpha characters:

int ponum = 0;  if (!string.isnullorwhitespace(potextbox.text))     int32.tryparse(potextbox.text.trim(), out ponum);  cmd.parameters.addwithvalue("?", ponum);

if poitem.ordno column contains alpha characters send string instead of int parameter:

string ponum = "";  if (!string.isnullorwhitespace(potextbox.text))     ponum = potextbox.text.trim();  cmd.parameters.addwithvalue("?", ponum);

try out , let know if works.


Comments

Post a Comment

Popular posts from this blog

angular - Ionic slides - dynamically add slides before and after -

hi i'm using ngfor create set of 3 slides while starting in middle i'm guaranteed able slide left or right on start. when slide right can simple listen reachedend , push slide array i'm looping. but have problem adding slide beginning. if same above , use e.g. array.unshift() or spread add item beginning, view think it's on position 0 , snaps view new slide. the code below work animates slide change index 1. slide = [0,1,2] //example loop slidechanged(event) { if(this.slides.isbeginning()){ this.slide = [this.slide[0]-1, ...this.slide]; this.slides.update(); this.slides.slideto(1) } } <ion-slides [initialslide]="1" (ionslidedidchange)="slidechanged($event)"> <ion-slide *ngfor="let item of slide"> <h1>slide {{item}}</h1> </ion-slide> </ion-slides> any appreciated! you can using ionslidenextend , ionslideprevend events slides . please
Read more

minify - Minimizing css files -

i want know how css files can minimized. currently, using external sites css minifier compress css files. however, after removing whitespaces, comments, etc, file sizes reduced 10-15%. how frameworks bootstrap manage make minimized versions kilobytes. as example, css is: body { background-color: #ff0; } the reduction goes 28 bytes 22 bytes other css files have lot more characters still smaller this. actually minifying code means it's remove thing code white space characters new line characters comments block delimiters it reduces amount of code has transferred on web , speed site load fastly.but unreadable format.
Read more

Add a dynamic header in angular 2 http provider -

i have http interceptor built via tutorial https://scotch.io/@kashyapmukkamala/using-http-interceptor-with-angular2 the problem need have dynamic header changes automatically once changes 'mode' in app. service able tell interceptor change header, or have interceptor pull header (which string)from service each request. able throwing away patch method, call http.patch('new header string') set header string. call in service controls 'mode' setting. wondering if there way interceptor pull recent value service each request or if can add method http provider via interceptor? i've tried call service in interceptor each request returns undefined. because creating new instance of service or copying value before service fired , loaded/changed data. i don't want pass header string every http provider call because defeats purpose of having interceptor, id able set once changes or have provider fetch service before makes request. tl;dr : need add autom
Read more