c# - Remove duplicate values in list box -


i have list box , bind table position , display column position. inserted 2 values w/ same position in table , list box displays 2 of same values inserted. so, can me display 1 of same value in list box? have code far:

private void listbox1_selectedindexchanged(object sender, eventargs e)     {         try         {             string select;               select = listbox1.selectedvalue.tostring();              datagridview1.datasource = this.maindatabasedataset.tblposition.select("position '%" + select + "%'");                 int numrows = datagridview1.rows.count;              txtcount.text = convert.tostring(numrows);              txtsearchcategory.text = select.tostring();              try             {                 maindatabasedataset.tblcategorizationdatatable getcategorycommand1 = getcategorydata(this.txtsearchcategory.text.trim());                 maindatabasedataset.tblcategorizationrow getcategorycommand2 = (maindatabasedataset.tblcategorizationrow)getcategorycommand1.rows[0];                  this.txtsg.text = getcategorycommand2.salarygrade.tostring();                 this.txtmales.text = getcategorycommand2.male.tostring();                 this.txtfemales.text = getcategorycommand2.female.tostring();              }              catch             {                 messagebox.show("this position not saved yet!", "information".toupper(), messageboxbuttons.ok, messageboxicon.information, messageboxdefaultbutton.button1);                 txtsg.text = "";                 txtmales.text = "";                 txtfemales.text = "";             }         }          catch         {             return;         }       }

you can selecting distinct in linq. try data source: 

 datagridview1.datasource = this.maindatabasedataset .groupby(i => i.position) .select(i => i.first()) .where(i => i.position.contains(select));

include using system.linq; namespace in project or reference it. let me know if works you.


Comments

Post a Comment

Popular posts from this blog

Android layout hidden on keyboard show -

i have strange problem layout. when tap on edittext , keyboard shown edittext stay on bottom , when tap on to hide keyboard , keyboard hides , edittext go should when want input text. when tap again, keyboard shown , edittext goes down behind keyboard... <relativelayout android:layout_width="match_parent" android:layout_height="match_parent" > <scrollview android:layout_width="match_parent" android:layout_height="fill_parent" android:above="@+id/rl_commands"> <textview android:layout_width="match_parent" android:layout_height="wrap_content"/> </scrollview> <relativelayout android:layout_width="match_parent android:layout_height="24dp" android:id="@+id/rl_commands" android:alignparentbottom="true">
Read more

google app engine - 403 Forbidden POST - Flask WTForms -

i have flask application running on google app engine. trying submit form built using wtform , keep getting following error. 403 forbidden: don't have permission access requested resource. either read-protected or not readable server. location.html (part of code) <form method=post action="/home/location"> .... <button type="submit" class="btn btn-primary" value="submit"> directions </button> </form> main.py @app.route('/home/location', methods=['post', 'get']) def location(): form = cfcdirections.direction(request.form) print(request.method) if request.method == 'post' , form.validate(): print("after if") directions = cfcdirections() street_no = directions.no street = directions.street suburb = directions.suburb postcode = directions.postcode
Read more

c - Why would PK11_GenerateRandom() return an error -8023? -

i looking through internet trying find source of pk11_generaterandom() function see why function fail. have program uses function when moved new flavor of linux, fails after forking ( fork() ) since not believe there problem nss, suspect doing incorrectly disregarded in older versions of linux new 1 there issue. the openssl package same on 'good' , 'bad' server: openssl 0.9.8e-fips-rhel5 01 jul nss rpm differs though. 'good' has nss-3.12.2.0-2.el5 and bas has version nss-3.15.3-4.el5_10 the 'good' server uses quite obsolete linux: linux 2.6.18-128.el5 #1 smp wed jan 21 08:45:05 est 2009 x86_64 x86_64 x86_64 gnu/linux enterprise linux enterprise linux server release 5.3 (carthage) red hat enterprise linux server release 5.3 (tikanga) the 'bad' server newer: linux bad 2.6.18-371.4.1.el5 #1 smp wed jan 29 11:05:49 pst 2014 x86_64 x86_64 x86_64 gnu/linux oracle linux server release 5.10 red hat enterprise linux server release
Read more