C# 从绑定源获取行数据绑定到列表框
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getting row data from bindingsource bound to listbox
提问by Daniel Szalay
I have a listbox like so:
我有一个像这样的列表框：
list.DataSource = bindingSource;
list.DisplayMember = "column_name";
Later I would want to get the selected item's IDfrom the DataSetwith bindingSource.Current. I've done this before with bindingNavigatorand bindingSource, where Currentreturns a DataRowView, so I can cast it and I'm done:
后来我想ID从DataSetwith 中获取所选项目bindingSource.Current。我之前用bindingNavigatorand完成了这个bindingSource，其中Current返回 a DataRowView，所以我可以投射它，我就完成了：
Int32.Parse(((DataRowView)bindingSource.Current)["id"].ToString())
But in this case Currentreturns a DataViewManagerListItemTypeDescriptorobject, and I can't cast it.
但在这种情况下Current返回一个DataViewManagerListItemTypeDescriptor对象，我不能投射它。
Any thoughts will be appreciated!
任何想法将不胜感激！
Daniel
丹尼尔
采纳答案by lc.
list.SelectedItemshould contain the selected row's DataRowView. Then you can:
list.SelectedItem应包含所选行的DataRowView. 然后你可以：
var row = (MyRowType)((DataRowView)list.SelectedItem).Row;
