private void Page_Load(object sender, System.EventArgs e)
{
_questionId =
Information.IsNumeric(Request["QuestionId"]) ? int.Parse(Request["QuestionId"]) : -1;
_filterId =
Information.IsNumeric(Request["FilterId"]) ? int.Parse(Request["FilterId"]) : -1;
_sortOrder =
Request["SortOrder"] == null ? "ans" : Request["SortOrder"];
if (_questionId == -1)
{
Response.End();
}
else if (!NSurveyUser.Identity.IsAdmin &&
!NSurveyUser.Identity.HasAllSurveyAccess)
{
if (!new Question().CheckQuestionUser(_questionId, NSurveyUser.Identity.UserId))
{
Response.End();
}
}
ChartEngine engine = new ChartEngine();
ChartCollection charts = new ChartCollection(engine);
engine.Size = new Size(700, 500);
engine.Charts = charts;
WebChart.ColumnChart chart = new WebChart.ColumnChart();
chart.Fill.Color = Color.FromArgb(98,94,238);
chart.MaxColumnWidth = 80;
chart.DataLabels.Visible = true;
chart.DataLabels.Position = DataLabelPosition.Bottom;
chart.DataLabels.ForeColor = Color.White;
chart.Shadow.Visible = true;
chart.DataLabels.NumberFormat ="0.00";
chart.ShowLineMarkers = true;
SetQuestionData(engine, chart);
SetMoreProperties(engine);
charts.Add(chart);
// send chart to browser
Bitmap bmp;
System.IO.MemoryStream memStream = new System.IO.MemoryStream();
bmp = engine.GetBitmap();
bmp.Save(memStream, System.Drawing.Imaging.ImageFormat.Png);
memStream.WriteTo(Response.OutputStream);
Response.End();
}
private void Page_Load(object sender, System.EventArgs e)
{
_questionId =
Information.IsNumeric(Request["QuestionId"]) ? int.Parse(Request["QuestionId"]) : -1;
_filterId =
Information.IsNumeric(Request["FilterId"]) ? int.Parse(Request["FilterId"]) : -1;
_sortOrder =
Request["SortOrder"] == null ? "ans" : Request["SortOrder"];
if (_questionId == -1)
{
Response.End();
}
else if (!NSurveyUser.Identity.IsAdmin &&
!NSurveyUser.Identity.HasAllSurveyAccess)
{
if (!new Question().CheckQuestionUser(_questionId, NSurveyUser.Identity.UserId))
{
Response.End();
}
}
ChartEngine engine = new ChartEngine();
ChartCollection charts = new ChartCollection(engine);
engine.Size = new Size(700, 500);
engine.Charts = charts;
WebChart.ColumnChart chart = new WebChart.ColumnChart();
chart.Fill.Color = Color.FromArgb(98, 94, 238);
chart.MaxColumnWidth = 80;
chart.DataLabels.Visible = true;
chart.DataLabels.Position = DataLabelPosition.Bottom;
chart.DataLabels.ForeColor = Color.White;
chart.Shadow.Visible = true;
chart.DataLabels.NumberFormat = "0.00";
chart.ShowLineMarkers = true;
SetQuestionData(engine, chart);
SetMoreProperties(engine);
charts.Add(chart);
// send chart to browser
Bitmap bmp;
System.IO.MemoryStream memStream = new System.IO.MemoryStream();
bmp = engine.GetBitmap();
bmp.Save(memStream, System.Drawing.Imaging.ImageFormat.Png);
memStream.WriteTo(Response.OutputStream);
Response.End();
}
private void SetAnswerData(QuestionResultsData.AnswersRow[] answers, float totalOfVotes, ChartEngine engine, WebChart.ColumnChart columnChart)
{
float currentRate = 0;
float totalRate = 0;
float totalRateVotes = 0;
foreach (QuestionResultsData.AnswersRow answer in answers)
{
if ((((AnswerTypeMode)answer.TypeMode & AnswerTypeMode.Selection) > 0))
{
float VotePercent = 0;
if (totalOfVotes != 0)
{
if (answer.VoterCount == 0)
{
VotePercent = 0;
}
else
{
VotePercent = ((float)answer.VoterCount / (float)totalOfVotes) * 100;
}
}
// Add answer text & vote count
answer.AnswerText = Server.HtmlDecode(System.Text.RegularExpressions.Regex.Replace(answer.AnswerText, "<[^>]*>", " "));
string answerChartText;
answerChartText = string.Format("{0} ({1})",
answer.AnswerText, answer.VoterCount.ToString());
columnChart.Data.Add(new ChartPoint(answerChartText, VotePercent));
// Do we include this answer in the
// rating total
if (answer.RatePart)
{
currentRate++;
totalRate += currentRate * answer.VoterCount;
totalRateVotes += answer.VoterCount;
}
}
}
StringFormat horizontalFormat = new StringFormat();
horizontalFormat.LineAlignment = StringAlignment.Far;
engine.XTitle = new ChartText();
engine.XTitle.StringFormat = horizontalFormat;
engine.XTitle.Font = new System.Drawing.Font("Verdana", 7);
// Do we show the average rating
if (_dataSource.Questions[0].RatingEnabled)
{
double meanRate = 0;
if (totalOfVotes == 0)
{
meanRate = 0;
}
else
{
meanRate = totalRate / totalRateVotes;
}
engine.XTitle.Text = string.Format("{0}{1}{2}{3}",
Environment.NewLine,
String.Format(ResourceManager.GetString("TotalOfVotes"), totalOfVotes),
Environment.NewLine,
string.Format(ResourceManager.GetString("RatingResults"), meanRate.ToString("##.##"), currentRate));
}
else
{
engine.XTitle.Text = String.Format(ResourceManager.GetString("TotalOfVotes"), totalOfVotes);
}
}
