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%%=FORMULA_NAME(DataSource.ColumnName) |
To do - create demo for PowerPointWriter
The following formulas are valid with PowerPointTemplate and will be evaluated when the data are bound to the document: AVERAGE, COUNT, COUNTA, MAX, MIN, PRODUCT, STDEV, STDEVP, SUM, VAR, and VARP. Additional information is available on the How to use Data Markers page.
The WordTemplate Formula Demo example below uses formulas to display the average, standard deviation, maximum, and minimum college entrance exam scores of a group of fictional students as part of a table including their individual scores. A repeat block on the first row allows WordTemplate to bring in all of the values of the referenced fields.
The following code opens the template and binds data to it using the SetDataSource and SetRepeatBlock methods, then streans streams the resulting document to the user:
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protected void OnDownload(object sender, EventArgs e)
{
WordTemplatePowerPointTemplate wtpptt = new WordTemplatePowerPointTemplate();
wtpptt.Open(Page.MapPath("templates/TestScoreReport.docx"FormulaTemplate.pptx"));
string[] fields = new string[] { "TestDate", "School", "Town", "Version" };
object[] values = new object[] {
new DateTime(2009, 11, 16).ToShortDateString(), //Get a Data Table of scores using the helper method
DataTable ScoreData = GetScores();
//Create DataBindingProperties
"Samuel Adams HS", DataBindingProperties dataBindProps "Milbury",
wt.Version
};
wt.SetDataSource(values, fields, ""= pptt.CreateDataBindingProperties();
DataTable//Bind dtthe =data
GetScores(); wtpptt.SetRepeatBlockBindData(dtScoreData, "ItemsData", dataBindProps);
wt.Process();
wt.Save(Response, "ScoreReport.docx", false);
}
private DataTable GetScores()
{
DataTable dt = new DataTable();
dt.Columns.Add("StudentID", typeof(string));
dt.Columns.Add("ReadingScore", typeof(int));
dt.Columns.Add("WritingScore", typeof(int));
dt.Columns.Add("MathScore", typeof(int));
dt.Columns.Add("TotalScoreScore", typeof(int));
Random rand = new Random();
int rScore, wScore, mScore;
for (int i = 0; i < 30; ++i)
{
rScore = rand.Next(400, 800);
wScore = rand.Next(400, 800);
mScore = rand.Next(400, 800);
dt.Rows.Add(
string.Format("S{0:000000}", rand.NextDouble() * 1000000),
rScore, wScore, mScore, rScore + wScore + mScore
);
}
DataTable dtSorted = dt.Clone();
foreach (DataRow row in dt.Select("", "StudentID asc"))
dtSorted.ImportRow(row);
return dtSorted;
}
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The formulas are evaluated by WordTemplatePowerPointTemplate, as you can see in the sample output fileslide:
