Developer's Guide - EPiServer World

104 | Developer’s Guide EPiServer Community 3.1
Get the Current State
In the example below, we will create a table of integer values that represent percentage distribution of votes among
poll choices. In a real life scenario, these numbers can be used e.g. to display a percentage bar chart that will show how
people voted in this poll.
// Get the poll get state
Poll poll = PollHandler.GetPoll(11);
// Create table to keep the percentages
int[] percentage = new int[poll.Choices.Count];
int choiceVoteCount = 0;
int totalVotes = poll.VotesCount;
// Fill the table with calculated percentages
for( int ix = 0; ix < poll.Choices.Count; ix++ )
{
choiceVoteCount = poll.Choices[ix].VoteCount;
percentage[ix] = (int)((((float)choiceVoteCount)/totalVotes)*100);
}
After a poll ha been retrieved from the database, we have access to all the properties of the poll itself, as well as its
choices. There is no need to use other PollHandler methods to retrieve information about the poll – the properties
provide all necessary data.
2.25.5 Adding Choices after Creation
The poll choices do not have to be added before the poll is committed in the database. It is possible to create a poll
with its text (a question), and after that to add choices (e.g. after a research on what choices are available). This
example will present how to update a poll with new choices.
Import Necessary Namespaces
First, import the necessary namespaces that will be used to add choices to a poll. The namespace
StarCommunity.Modules.Poll is described by clicking on its name. Make sure you add the assembly as a reference,
mentioned in section 1.1.1.
using StarCommunity.Modules.Poll;
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