How to improve performance when doing bulk changes in Xamarin.iOS DataGrid?
The Xamarin DataGrid refreshes the view, whenever a new item is added or removed to its collection. Thus, when you perform a bulk changes continuously it may appear like the performance is affected as the grid is refreshed when each item is added or removed. In order to overcome this performance lag SfDataGrid allows you to suspend the updates and resume it to refresh the grid at once.
The SfDataGrid.View.BeginInit method suspends the view updates and the SfDataGrid.View.EndInit method resumes the updates and refreshes the grid.
dataGrid.AllowLoadMore = true;
dataGrid.LoadMoreCommand = new Command(ExecuteLoadMoreCommand);
public async void ExecuteLoadMoreCommand()
{
dataGrid.IsBusy = true;
await Task.Delay(5000);
dataGrid.View.BeginInit();
viewModel.LoadMoreItems();
dataGrid.View.EndInit();
dataGrid.IsBusy = false;
}
// ViewModel.cs
public void LoadMoreItems()
{
for (int i = 1; i <= 50; i++)
{
Collection.Add(repository.CreateItem(Collection.Count + 1));
}
}
// ModelRepository.cs
public Model CreateItem(int customerID)
{
Model model = new Model();
model.CustomerID = customerID;
model.CustomerName = CustomerName[random.Next(10)];
model.OrderID = random.Next(100, 500);
model.ShipCountry = ShipCountry[random.Next(20)];
return model;
}
Sample Link:
How to improve performance when doing bulk changes in SfDataGrid
Conclusion
I
hope you enjoyed learning about how to improve performance when
doing bulk changes in
DataGrid.
You can refer to our Xamarin.iOS DataGrid feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications.
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