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Developing Microsoft® .NET Controls with Microsoft Visual Basic® .NET by John Connell

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Custom Type Converters

As you just saw, we’ll have to set the target position for the Plutonic Nebulizer in four-dimensional hyperspace. This means that we’ll require a custom type converter to provide a mechanism to set each composite dimensional property. Since the property FourDimensions really consists of four individual aggregate properties, it is helpful to provide the property with a plus icon that can be clicked to expand the category. (See Figure 5-6.)

Figure 5-6. A property with the potential to be expanded

When the user sets the FourDimensions property, he is really setting the Cartesian coordinates of X, Y, and Z. Of course, the ...

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