Or alternatively you might want to simplify that to one line, and encapsulate it into some method:
private void RefreshMyListBoxData()
{
((CurrencyManager) this.BindingContext[myArra
}
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Question
ListBox datasource updated (how to refresh listbox?)
I have a Windows.Forms.ListBox which is bound to a C# array through its DataSource property.
The content of the array displays properly in the listbox.
But when I modify an element in the array, I want the listbox to reflect the array changes, and I can't figure how to do this.
Do I have to call some method on the listbox, and/or the bindingcontext, and/or the datasource?
For the moment, the only way I found to refresh the data displayed in the listbox was to call :
listBox.DataSource = null ;
listBox.DataSource = myArray ;
which is slow and heavy.
What's the proper way to refresh the contents displayed in a listbox bound to an array datasource when the array contents change?
Thanks.
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by: Zephyr__Posted on 2005-12-22 at 05:52:31ID: 15533805
Hi,
the proper way would be to obtain a CurrencyManager reference through the BindingContext of your form and calling its Refresh() method - whenever you modify the array:
//Global to your form
CurrencyManager cm;
//When you set the DataSource of your ListBox, add the following line below it
cm = (CurrencyManager) this.BindingContext[myArra
//Whenever you modify your array, add this below
cm.Refresh();
This should update your ListBox control whenever a modification is made to the underlying datasource (your array)
Hope this helps!