Deleting a particular record in the displayed table

The first thing that would flash in our mind when we are supposed to delete a particular record is the record Id itself. So, let's make sure we are some how able to pass the records id and store/receive it in the apex class in order to do the honours.

Next, we fetch that particular record from the required object and use a simple DML to delete.

Apex Class

public with sharing class DeleteTestingNew {

    public String rId{get;set;}
    DataLoadTest__c delDlt = new DataLoadTest__c();
    public PageReference doDelete() {
        delDlt=[select Id from DataLoadTest__c where id =:rId];
        delete delDlt;

        //re-directing to a new page, please create this page "newdelete"
        pagereference ref=new pagereference('/apex/newdelete');
        ref.setredirect(true);
        return ref;
    }

    List<DataLoadTest__c> lstdlt = new List<DataLoadTest__c>();
    public List<DataLoadTest__c> getRecords() {
        lstdlt =[select id,name,city__c,country__c,phone__c from DataloadTest__c];
        return lstdlt;
    }

}

Visualforce Page

<apex:page controller="DeleteTestingNew" sidebar="false">
  <apex:form >
      <apex:pageBlock >
          <apex:pageBlockSection >
              <apex:pageBlockTable value="{!records}" var="r">
                  <apex:column headerValue="Action">
                      <apex:commandlink value="Delete" action="{!doDelete}">
                          <apex:param name="rId" value="{!r.Id}"

                           assignTo="{!rId}"/>
                      </apex:commandlink>
                  </apex:column>
                  <apex:column headerValue="Name">
                      {!r.name}
                  </apex:column>
                   <apex:column headerValue="city">
                      {!r.City__c}
                  </apex:column>
                   <apex:column headerValue="phone">
                      {!r.Phone__c}
                  </apex:column>
                   <apex:column headerValue="country">
                      {!r.Country__c}
                  </apex:column>
              </apex:pageBlockTable>
          </apex:pageBlockSection>
      </apex:pageBlock>
  </apex:form>
</apex:page>