Working with FilteredBindingList

Question

Hi guys:

I'm using a FilteredBindingList(which implements the BindingList<T>, IBindingListView interfaces).

Making an instance of FilteredBindingList (FilteredBindingList<SampleObject>), I'm using it as Data Source of a System.Window.Forms.BindingSource object. Using the "Filter" property of BindingSource object, I'm filtering the datasource according to the value of "Filter"

someBindingSource.Filter = string.Format("key={0}",someComboBox.SelectedValue)));

It works fine if I set this "someBindingSource" as datasource of a datagridview. But, if I remove an item from the filtered datasource of the "someBindingSource", the result is wrong, because if I code someBindingSource.RemoveFilter(), the removed item is still on the current DataSource property of "someBindingSource", but the immediatly record which I'm not remove, was removed.

Any of you know why this happens???

Thanks in advance. I' really appreciate.

adrenalin adrenalin · Answer

Guys : please help me how to create for support for Serializable in FilteredBindingList class reference link : http://wiki.visualwebgui.com/pages/index.php?title=BindingSource_CodeSample_-_Databinding_to_Filterable_list_of_custom_objects&oldid=7142

Gabriel Goyo · Answer

Thank you Iftikar. So my real problem is not about how to implement the list and filter the DGV is about how to remove an element from the bindingsource correctly. If I remove programatically an item from the bindingsourtce using the Remove method it happens what I describe. As long as my bindingsourtce is filtered the removed item is the right item(For example if i got A & B and I remove B it suppose that remains A) but if I remove the filter using RemoveFilter() method the remaining item is B instead A.

Iftikar Hussain · Answer

Hi Please refer the below link. http://code.msdn.microsoft.com/DataGridView-Filter-db565575 Let me know if you need more information Regards Iftikar Remember to click Mark as Answer on the post if it helps you.