How do you set a value to null?
I need to clear the DataSource property on a combo box. In C# this can be achieved by writing:
comboBox.DataSource = null;
In Robotis Studio, I achieved the same by creating a script. I also can create an uninitialized variable and pass it as the data source. Both work, but neither area ideal. Is there a better way to set a value to null?
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Accepted Solution
Pegasystems Inc.
US
I don't think there is a "correct" way of doing it. I came up with adding a hidden Combobox on my Windows Form. By default, the DataSource is null so I pass the DataSource from my hidden Combobox to the Combobox that I want to be null.
Another method would be to pass an empty array into the DataSource, which will also clear the items in the Combobox.
UnitedHealthcare
US
I was hoping there was null variable I was missing similar to the string, bool, etc. components. I'll try the empty array method. That seems more elegant.