This topic provides examples for using PollManager methods to manage question items.

Creating Questions:

Finding Questions:

Modifying Questions:

Deleting Questions:

Creating Questions

Create a question for specified poll item:

A poll item could contain one or more questions of type IQuestionItem. The following example demonstrates how to create a new question for a newly-created poll:

CreateQuestion(IPollItem poll)

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// create new instance of PollManager Telerik.Polls.PollManager pollManager = new Telerik.Polls.PollManager(); // create new PollItem to which we are going to add a question Telerik.Polls.IPollItem pollItem = pollManager.CreatePoll(); // set title of new poll pollItem.Title = "My Poll with Question"; // update the poll item pollManager.UpdatePoll(pollItem); // create new QuestionItem Telerik.Polls.IQuestionItem question1 = pollManager.CreateQuestion(pollItem); // assign values to some properties of the question item // assign text to question question1.Text = "Question 1 - text"; // the question will be displayed with RadioButton control question1.Layout =  Telerik.Polls.QuestionLayout.RadioButton; // this question will be the first one for the poll named pollItem question1.SortOrder = 0; // update the question item pollManager.UpdateQuestion(question1);

Finding Questions

Get a specific question by its ID:

GetQuestionById(Guid id)

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// create new instance of PollManager Telerik.Polls.PollManager pollManager = new Telerik.Polls.PollManager(); // get all polls IList<Telerik.Polls.IPollItem> listOfAllPolls = pollManager.GetAllPolls(); if (listOfAllPolls.Count > 0) {    // get reference to the first poll    Telerik.Polls.IPollItem firstPoll = (Telerik.Polls.IPollItem)listOfAllPolls[0];    //find ID of second question    if (firstPoll.Questions.Count > 2)    {        // get the ID of the second question - this process is actually redundant, but we        // are using it here for the purpose of demonstration        Guid secondQuestionId = ((Telerik.Polls.IQuestionItem)firstPoll.Questions[1]).ID;        // retrieve the QuestionItem by passing the ID to the GetQuestionById method        Telerik.Polls.IQuestionItem secondQuestion = pollManager.GetQuestionById(secondQuestionId);        // write the headline of the secondItem to see the result        Response.Write(secondQuestion.Text);    } }

Get all questions for a given poll item:

GetQuestions(Guid pollId)

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// create new instance of PollManager Telerik.Polls.PollManager pollManager = new Telerik.Polls.PollManager(); // get all polls IList<Telerik.Polls.IPollItem> listOfAllPolls = pollManager.GetAllPolls(); if (listOfAllPolls.Count > 0) {    // get reference to the first poll    Telerik.Polls.IPollItem firstPoll = (Telerik.Polls.IPollItem)listOfAllPolls[0];    //find ID of the first poll    Guid firstPollId = firstPoll.ID;    // get all the questions belonging to the first poll by passing the ID of the    // first poll to the GetQuestions function    IList<Telerik.Polls.IQuestionItem> questionsOfFirstPoll = pollManager.GetQuestions(firstPollId);              // write all the texts so that we can see the result    foreach (Telerik.Polls.IQuestionItem questionItem in questionsOfFirstPoll)        Response.Write(questionItem.Text + "<br />"); }

Modifying Questions

Updating a QuestionItem is a very simple process:

1. Get a QuestionItem associated with a transaction
2. Change its properties
3. Save the QuestionItem with PollManager

UpdateQuestion(IQuestionItem updatedQuestion)

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// create a new instance of PollManager Telerik.Polls.PollManager pollManager = new Telerik.Polls.PollManager(); //get all polls IList<Telerik.Polls.IPollItem> listOfAllPolls = pollManager.GetAllPolls(); if (listOfAllPolls.Count > 0) {    // get reference to the first poll    Telerik.Polls.IPollItem firstPoll = (Telerik.Polls.IPollItem)listOfAllPolls[0];    //find ID of the first poll    Guid firstPollId = firstPoll.ID;    if (firstPoll.Questions.Count > 0)    {         // get the ID of the second question - this process is actually redundant, but we         // are using it here for the purpose of demonstration         Guid secondQuestionId = ((Telerik.Polls.IQuestionItem)firstPoll.Questions[0]).ID;         // retrieve the QuestionItem by passing the ID to the GetQuestionById method         Telerik.Polls.IQuestionItem secondQuestion = pollManager.GetQuestionById(secondQuestionId);         //modify the properties of the QuestionItem         secondQuestion.Text = "The modified text";         //update the question         pollManager.UpdateQuestion(secondQuestion);    } }

Deleting Questions

Delete a question specified by ID:

DeleteQuestion(Guid id)

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// create a new instance of PollManager Telerik.Polls.PollManager pollManager = new Telerik.Polls.PollManager(); //get all polls IList<Telerik.Polls.IPollItem> listOfAllPolls = pollManager.GetAllPolls(); if (listOfAllPolls.Count > 0) {    // get reference to the first poll    Telerik.Polls.IPollItem firstPoll = (Telerik.Polls.IPollItem)listOfAllPolls[0];    //find ID of the first poll    Guid firstPollId = firstPoll.ID;    if (firstPoll.Questions.Count > 2)    {        // get the ID of the second question - this process is actually redundant, but we        // are using it here for the purpose of demonstration        Guid secondQuestionId = ((Telerik.Polls.IQuestionItem)firstPoll.Questions[1]).ID;        // retrieve the QuestionItem by passing the ID to the GetQuestionById method        Telerik.Polls.IQuestionItem secondQuestion = pollManager.GetQuestionById(secondQuestionId);        // finally, delete the second question of the first poll        pollManager.DeleteQuestion(secondQuestionId);    } }

See Also

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