问题
How to find a value of some column from DataView.CurrentItem.
回答1:
As Paul pointed out in his comment, there is no CurrentItem
member in the DataView
class.
If you know the index of the item, you can access a column by its name as shown below :
string name = dataView[index]["Name"] as string;
Similarly, if you have an instance of a DataRowView
(a view of a DataRow
), you can do that :
string name = dataRowView["Name"] as string;
EDIT: I just noticed the WPF tag on your question... perhaps you're talking about a CollectionView
, not DataView
?
CollectionView
doesn't have "columns" per se, but it can be represented in a GridView
or DataGrid
(which both have columns). It's just a view over a collection of objects. To access a specific field or property of the current object, there are two main options :
- if you statically know the actual type of the collection items : cast the
CurrentItem
to that type, and directly access the members you need - if you don't know the type, you can use reflection on the CurrentItem to access its properties or fields by name
来源:https://stackoverflow.com/questions/1435734/getting-value-from-dataview-c-sharp