casting issue

[Glenn]

I am kind of new to c# language and looking for assistance on how the
following piece of code works.

objectDefinitions.Add((ObjectDefinition)((ArrayLis t)myGenericAnalysisWindow.comboBox2.Tag)[myGenericAnalysisWindow.comboBox2.SelectedIndex]);

- ObjectDefinition: is a self defined class
- objectDefinitions: is an instance of the ArrayList class
- myGenericAnalysisWindow is some window with a combobox
I do not understand how the casting works here and in what way squared
brackets are used.

Help is very much appreciated. Thanx.

[Hans Kesting]

> I am kind of new to c# language and looking for assistance on how the

following piece of code works.

objectDefinitions.Add((ObjectDefinition)((ArrayLis t)myGenericAnalysisWindow.comboBox2.Tag)[myGenericAnalysisWindow.comboBox2.SelectedIndex]);

- ObjectDefinition: is a self defined class
- objectDefinitions: is an instance of the ArrayList class
- myGenericAnalysisWindow is some window with a combobox
I do not understand how the casting works here and in what way squared
brackets are used.

Help is very much appreciated. Thanx.

1) you take myGenericAnalysisWindow.comboBox2.Tag
2) this you cast to ArrayList
3) with the [] you get one item from this list: index is
myGenericAnalysisWindow.comboBox2.SelectedIndex
4) this item you cast to ObjectDefinition
5) you add that to your objectDefinitions list.
Hans Kesting

[cody]

the Tag in the combobox is cast to an arraylist from which the item at the
selectedindex of the combo is chosen. the result is cast to ObjectDefinition
and then added to the objectDefinitions list.

--
"Glenn" <gl****@web.de> schrieb im Newsbeitrag
news:e3**********@sagnix.uni-muenster.de...

I am kind of new to c# language and looking for assistance on how the
following piece of code works.

objectDefinitions.Add((ObjectDefinition)((ArrayLis t)myGenericAnalysisWindow.comboBox2.Tag)[myGenericAnalysisWindow.comboBox2.SelectedIndex]);

- ObjectDefinition: is a self defined class
- objectDefinitions: is an instance of the ArrayList class
- myGenericAnalysisWindow is some window with a combobox
I do not understand how the casting works here and in what way squared
brackets are used.

Help is very much appreciated. Thanx.