DataSet between Forms

[hxxbin]

Hi I got a question, how can I access to a DataSet or any object from another Form in the same project??. I have a main form, (no MDI), and show a dialog, but I wanna that dialog use a Dataset from the main form. Thanks. ---- hxxbin

[Colin Angus Mackay]

If you design your application properly things like datasets won't be controlled by forms so you shouldn't need to pass a dataset between forms. Here is a good place to start: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnpatterns/html/DesMVC.asp[^] Also, analysing the way you asked your question ("from another Form in the same project") I have some doubts about your understanding of Object Orientation. So you may like to read also http://www.codeproject.com/useritems/beginneroop.asp[^] which was written with examples in C++ but the concept equally applies to C# Finally, to actually answer your question I have provided a example implementation. In the method in the main form that opens the dialog do something like this:

DialogForm dlg = new DialogForm();
dlg.TheDataset = this.myDataset;
dlg.ShowDialog();

where: this.myDataset is your dataset and dlg.TheDataset is defined in your Dialog Form's class as

public Dataset TheDataSet
{
set
{
this.theDataset = value;
}
}

and that the Dialog Form also has a field defined as: private Dataset theDataset Does this help?

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