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VN Problem with SelectOption
Hi,
We have a requirement where i need to display a drop down menu in a visualforce page. The drop down field should display values which is exact replica of values for the field Marketing Domain in the Accounts object. Iam trying to achieve this using selectList and selectOption tags and this is the piece of code that iam using in my controller class.
public List<SelectOption> getItems() {
List<SelectOption> options = new List<SelectOption>();
domain = [Select Marketing_Domain__c from Account];
for(Account a:domain)
{
String b=a.Marketing_Domain__c;
options.add(new SelectOption(b,b));
}
return options;
List<SelectOption> options = new List<SelectOption>();
domain = [Select Marketing_Domain__c from Account];
for(Account a:domain)
{
String b=a.Marketing_Domain__c;
options.add(new SelectOption(b,b));
}
return options;
The variable items is fetched in page editor as shown below
<apex:selectList id="domain" size="1" >
<apex:selectOptions value="{!items}"/>
<apex:selectOptions value="{!items}"/>
</apex:selectList>
Iam getting exception here(Null Pointer). The selectOption is not taking anything other than string values. Is there any way that i can fetch and display the values stored in the variable 'domain'?
Please help its urgent.
Thanks in advance
Priya Nair
All Answers
Try modifying the query as [Select Marketing_Domain__c from Account where Marketing_Domain__c != null]
Thanks a lot Sham....it worked....Now the problem iam facing is that iam getting duplicate values....since in the for loop i have mentioned
for(Account a:domain)
options.add(...)
do you know how to restrict the loop to the correct number of variables fetched from the select statement.
Thanks again
Priya Nair
Set<string> setOptions = new Set<string>();
for(Account a: [Select Query]) {
setOptions.add(a.Domain);
}
for(string key : setOptions) {
//add to Select
}
Thanks Sham,
Iam getting this error now...
Set<string> setOptions = new Set<string>();
List<SelectOption> options = new List<SelectOption>();
for(Account a: [Select Marketing_Domain__c from Account where Marketing_Domain__c != null]) {
setOptions.add(a.Marketing_Domain__c);
}
options.add(key);
}
return options;
}