void AsyncToolTip_Loaded(object sender, RoutedEventArgs e)
{
GridCellData d = (GridCellData)DataContext;
if (d == null)
{
return;
}
GetToolTipEventArgs args;
if (!Strings.ContainsKey(d.RowData.Row))
{
args = new GetToolTipEventArgs(this, d);
Strings.Add(d.RowData.Row, args);
Text = DefaultToolTip;
}
args = Strings[d.RowData.Row];
Text = args.CurrentToolTip;
if (GetToolTip != null)
{
GetToolTip(this, args);
}
if (GetToolTipCommand != null && GetToolTipCommand.CanExecute(args))
{
GetToolTipCommand.Execute(args);
}
}
void GetToolTip(object p)
{
GetToolTipEventArgs e = p as GetToolTipEventArgs;
if (e.CurrentToolTip != e.DefaultToolTip)
{
return;
}
w = new BackgroundWorker();
w.DoWork += new DoWorkEventHandler(w_DoWork);
w.RunWorkerAsync(e);
}
void w_DoWork(object sender, DoWorkEventArgs e)
{
i++;
Thread.Sleep(TimeSpan.FromSeconds(1));
GetToolTipEventArgs e1 = e.Argument as GetToolTipEventArgs;
Dispatcher.BeginInvoke(new Action <GetToolTipEventArgs>((args) => {
if (args == null || args.CellData == null || args.CellData.RowData == null)
{
return;
}
string res1 = "ID: " + ((TestDataItem)args.CellData.RowData.Row).ID.ToString() + ", " + "Value: " + ((TestDataItem)args.CellData.RowData.Row).Value;
args.SetToolTip(res1);
}), new object[] { e1 }
);
}
