The PowerPointTemplate object supports some basic formulas. Each of the formulas will perform a specific operation on the values referenced. |
The formula must follow the syntax %%=FORMULA_NAME(DataSource.ColumnName)
where:
PowerPointTemplate.BindData
method is called. There must be a call to PowerPointTemplate.BindData
to bind a data source to the template, however, you do not need to include a full data marker (%%=DataSource.ColumnName) in the template to use the formula.
PowerPointWriter supports the following data marker formulas:
AVERAGE |
Calculates the average of the column values |
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COUNT |
Returns the number of values (that is, the number of rows in the data source) of the column |
COUNTA |
Returns the number of non-null values of the column |
MAX |
Returns the maximum value from the column |
MIN |
Returns the minimum value from the column |
PRODUCT |
Calculates the product of the column values |
STDEV |
Returns the standard deviation of the column values, treating the values as a sample |
STDEVP |
Returns the standard deviation of the column values, treating the values as a population |
SUM |
Calculates the sum of the column values |
VAR |
Returns the variance of the column values, treating the values as a sample |
VARP |
Returns the variance of the column values, treating the values as a population |
The TemplateThe 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. The CodeThe following code opens the template and binds data to it using the SetDataSource and SetRepeatBlock methods, then streams the resulting document to the user:
ResultsThe formulas are evaluated by PowerPointTemplate, as you can see in the sample output slide: |