How to: Store Multiple Data Formats in a Data Object

The following example shows how to use the SetData(String, Object) method to add data to a data object in multiple formats.


DataObject dataObject = new DataObject();
string sourceData = "Some string data to store...";

// Encode the source string into Unicode byte arrays. 
byte[] unicodeText = Encoding.Unicode.GetBytes(sourceData); // UTF-16 
byte[] utf8Text = Encoding.UTF8.GetBytes(sourceData);
byte[] utf32Text = Encoding.UTF32.GetBytes(sourceData);

// The DataFormats class does not provide data format fields for denoting 
// UTF-32 and UTF-8, which are seldom used in practice; the following strings  
// will be used to identify these "custom" data formats.
string utf32DataFormat = "UTF-32";
string utf8DataFormat  = "UTF-8";

// Store the text in the data object, letting the data object choose 
// the data format (which will be DataFormats.Text in this case).
// Store the Unicode text in the data object.  Text data can be automatically 
// converted to Unicode (UTF-16 / UCS-2) format on extraction from the data object;  
// Therefore, explicitly converting the source text to Unicode is generally unnecessary, and 
// is done here as an exercise only.
dataObject.SetData(DataFormats.UnicodeText, unicodeText);
// Store the UTF-8 text in the data object...
dataObject.SetData(utf8DataFormat, utf8Text);
// Store the UTF-32 text in the data object...
dataObject.SetData(utf32DataFormat, utf32Text);
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