Hang during databinding of large amount of data to WPF DataGrid
- by nihi_l_ist
Im using WPFToolkit datagrid control and do the binding in such way:
<WpfToolkit:DataGrid x:Name="dgGeneral" SelectionMode="Single"
SelectionUnit="FullRow"
AutoGenerateColumns="False"
CanUserAddRows="False"
CanUserDeleteRows="False"
Grid.Row="1" ItemsSource="{Binding Path=Conversations}" >
public List<CONVERSATION> Conversations
{
get { return conversations; }
set
{
if (conversations != value)
{
conversations = value;
NotifyPropertyChanged("Conversations");
}
}
}
public event PropertyChangedEventHandler PropertyChanged;
public void NotifyPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
public void GenerateData()
{
BackgroundWorker bw = new BackgroundWorker();
bw.WorkerSupportsCancellation = bw.WorkerReportsProgress = true;
List<CONVERSATION> list = new List<CONVERSATION>();
bw.DoWork += delegate { list = RefreshGeneralData(); };
bw.RunWorkerCompleted += delegate
{
try
{
Conversations = list;
}
catch (Exception ex)
{
CustomException.ExceptionLogCustomMessage(ex);
}
};
bw.RunWorkerAsync();
}
And than in the main window i call GenerateData() after setting DataCotext of the window to instance of the class, containing GenerateData().
RefreshGeneralData() returns some list of data i want and it returns it fast.
Overall there are near 2000 records and 6 columns(im not posting the code i used during grid's initialization, because i dont think it can be the reason) and the grid hangs for almost 10 secs!
