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Hyd Reg: Distinct values from the object
Hi,
My object is : student__c with custom fields name,city__c.
It has 4 records.
In city__c the values like Hyd,Bang,Hyd,Bang
when i get these values into picklist all 4 values are displaying.
But i would like to display only (Hyd,Bang) distinct values in picklist .
I wrote the below code..
public class vvnr {
List<Student__c> obj;
public List<selectOption> getLstdata()
{
List<selectOption> options=new List<selectOption>();
options.add(new SelectOption('--None--','--None--'));
for(Student__c obj: [select name,city__c from student__c ])
{
options.add(new selectOption(obj.city__c,obj.city__c));
}
return options;
}
public String lst { get; set; }
}
can any one suggest me....!
Thanks....
Try the sample code given below:
public List<selectOption> getLstdata()
{
List<selectOption> options=new List<selectOption>();
options.add(new SelectOption('--None--','--None--'));
Set<String> city= new Set<String>();
for(Student__c obj: [select name,city__c from student__c ])
{
if(!city.contains(obj.city__c))
{
city.add(obj.city__C);
options.add(new selectOption(obj.city__c,obj.city__c));
}
}
return options;
}
All Answers
Try the sample code given below:
public List<selectOption> getLstdata()
{
List<selectOption> options=new List<selectOption>();
options.add(new SelectOption('--None--','--None--'));
Set<String> city= new Set<String>();
for(Student__c obj: [select name,city__c from student__c ])
{
if(!city.contains(obj.city__c))
{
city.add(obj.city__C);
options.add(new selectOption(obj.city__c,obj.city__c));
}
}
return options;
}
I got it.....
Thanks .