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Intro
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Excerpt |
This guide will explain how to import a single row of values into a PowerPoint presentation using data markers. This assumes a basic understanding of data markers. |
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Setting up the Template
The template file should contain data markers following proper data marker syntax. Each copy of a given data marker will be populated with the same value. If the data marker appears in a table row or list entry, nothing will be automatically repeated if only one row is imported.
Binding Data
PowerPointTemplate has a single method for binding data to the data markers that are located in the template: PowerPointTemplate.BindData. Depending on the data source type and the number of rows in the data source, PowerPointWriter will either import a single row of data or import multiple rows.
There are several ways to import a single row of data into a presentation:
- Use a single dimensional array
- Use a multi-dimensional data source AND
- The data source only has one row of data
- DataBindingProperties.MaxRowsToImport is set to 1
Single Dimensional Arrays
Arrays don't have built-in means to store column names. The user must specify the column names in a string array that is passed to {{PowerPointTemplate.BindData}}
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at
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run
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time.
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{csharp} PowerPointTemplate pptt = new PowerPointTemplate(); pptt.Open(@"C:\DataBinding\ArrayBindingTemplate.pptx"); string[] values = {"Hello World", "subtitle"}; string[] colNames = {"header", "subtitle"}; DataBindingProperties DataProps = pptt.CreateDataBindingProperties(); pptt.BindData(values, colNames, "DataSource1", DataProps); pptt.Process(); pptt.Save(Page.Response, "ArrayBinding.pptx", false); {csharp} {vb} |
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Dim pptt As New PowerPointTemplate(); pptt.Open("C:\DataBinding\ArrayBindingTemplate.pptx") Dim values = New String() {"Hello World", "subtitle"} Dim colNames = New String() {"header", "subtitle"} Dim DataProps As DataBindingProperites = pptt.CreateDataBindingProperties() pptt.BindData(values, colnames, "DataSource1", DataProps) pptt.Process() pptt.Save(Page.Repponse, "ArrayBinding.pptx", False) {vb} h2. |
Multi-dimensional
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data
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sources
If a multi-dimensional
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data
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source
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has
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only
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one
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row
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of
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data,
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the
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automatic
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repeating
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behavior
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will
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not
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occur.
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This
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is
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consistent
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for
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any
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of
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the
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multi-dimensional
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data
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sources
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supported
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by
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:
- Jagged and multi-dimensional arrays
- Custom objects (IEnumerable<T>)
- System.IDataReader and System.DataTable
Setting MaxRowsToImport to 1
MaxRowsToImport is a property on the DataBindingProperties object that can be used to limit the number of rows that are imported, regardless of how many rows are actually in the data source.
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DataBindingProperties dataProps = ppt.CreateDataBindingProperties();
dataProps.MaxRowsToImport = 1;
ppt.BindData(getDataTable(), "DataSourceName", dataProps);
{csharp}
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