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Default Value for Class


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QUOTE(NormKirchner @ Sep 26 2007, 04:02 PM)

If the data type of a class (alpha) is another class(beta), how would one set the default value of beta to one of it's children class?

That sounds a little bit like, "how much wood would a woodchuck chuck if a woodchuck could chuck wood? :laugh:

Your question is not very clear to me and I don't understand the context. What are you trying to accomplish?

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QUOTE(NormKirchner @ Sep 26 2007, 06:02 PM)

If the data type of a class (alpha) is another class(beta), how would one set the default value of beta to one of it's children class?

Translation: An element of class Alpha is a control of class Beta. You want to set the default value of this control to be Gamma, which is a child class of Beta.

To do this, you must have LV8.5. It won't work in LV8.2.

Open a blank VI. Drop a control of type Gamma. Popup on the control and choose "Copy Data". Then go to the private data control of Alpha and popup on the Beta control and select Paste Data. Then popup again and choose "Make Current Value Default." Save Alpha.

Viola!

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QUOTE(Jim Kring @ Sep 26 2007, 07:43 PM)

That sounds a little bit like, "how much wood would a woodchuck chuck if a woodchuck could chuck wood? :laugh:

Your question is not very clear to me and I don't understand the context. What are you trying to accomplish?

It's part of what AQ does in his map structure. The structure of the map class is simply a container of a parent class, but the default value of the map class is not a container of that parent class but rather a container of the parent class who's default value is of a child class.

So I think there may be some clever way of exploiting this so that we can make a parent class aware of it's children somehow.... hmmm...

I don't like to work outside of the box... I like to take the box and fashion it into a trebuchet and use it to smash down the walls of everyone elses box.

~,~ in full effect

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