Please check the below code we should use predefined methods which are provided in schema class and also check the code to retrieve object through SOQL Queries.
public class schemademo2 {
public string selectedobject{get;set;}
public List<selectoption> objname{get;set;}
public string selectedfield{get;set;}
public List<selectoption> fldname{get;set;}
public string selectedvalue{get;set;}
public List<selectoption> valname{get;set;}
public boolean pb1{get;set;}
Map<string,schema.sobjectType> mobj = schema.getGlobalDescribe();
public schemademo2(){
objname = new List<selectoption>();
Map<string,schema.sobjectType> mobj = schema.getGlobalDescribe();
List<string> entities = new List<string>(mobj.keyset());
entities.sort();
objname.add(new selectoption('---Select Object---','----Select Object---'));
for(string f:entities){
if (f.contains('__c'))
// if (!f.contains('__c'))
objname.add(new selectoption(f,f));
}
}
public PageReference searchFields() {
Map<string,sobjectField> mfld = mobj.get(selectedobject).getDescribe().fields.getMap();
fldname = new List<selectoption>();
List<string> fldentities = new List<string>(mfld.keyset());
pb1=true;
fldentities.sort();
fldname.add(new selectoption('---Select Field---','----Select Field---'));
for(string sf:fldentities){
fldname.add(new selectoption(sf,sf));
}
return null;
}
public PageReference searchValues() {
string dquery = 'select '+selectedfield+' from '+selectedobject;
List<Sobject> vals = Database.query(dquery);
valname= new List<selectoption>();
for(sobject val:vals){
if(val.get(selectedfield)!=null)
valname.add(new selectoption(string.valueof(val.get(selectedfield)),string.valueof(val.get(selectedfield))));
}
return null;
}
}
I hope it will be helpful.
Please mark it as solved.so they removed from unanswered questions.and more apparent as the proper solution to similar kind of issue. Thanks Rahul Kumar
- For The Above requirement, you should need to use "Schema Class" Check the below document which salesforce has provided in apex developer guide.
- https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_methods_system_schema.htm
Please check the below code we should use predefined methods which are provided in schema class and also check the code to retrieve object through SOQL Queries.VisualForce Page:
ApexClass:
I hope it will be helpful.
Please mark it as solved.so they removed from unanswered questions.and more apparent as the proper solution to similar kind of issue.
Thanks
Rahul Kumar