Reading ListBox's SelectedItem

Question

I have a ListBox and a TextBox on my form. Upon ListBox's SelectedIndexChanged event I want to show what is currently selected in the ListBox. The ListBox is bound to a DataSource, the type of which is unknown at design-time. I do know the value of DisplayMember (which the ListBox apparently uses to display each item's text). How do I get the selected item's Text? Does it need Reflection, or is there a direct way?

Answer 1

If the selected item is a datarowview, then you can use the displaymember to get the displayValue with:

System.Data.DataRowView drv = (DataRowView)listBox1.SelectedItem;
string displayValue = Convert.ToString(drv[listBox1.DisplayMember]);

There's also the getItemText function:

listBox1.GetItemText(listBox1.SelectedItem);