Question

on click a button i load data to my datagrid

MySqlCommand cmd1m = new MySqlCommand("select * from table", conn);
DataTable dt1m = new DataTable();
dt1m.Load(cmd1m.ExecuteReader());
System.Windows.Forms.BindingSource source = new System.Windows.Forms.BindingSource();
source.DataSource = dt1m;
dataGrid1.ItemsSource = source;

namespace:

xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation/toolkit/extended"

and xaml:

<wpf:BusyIndicator Name="loading" IsBusy="False">
<DataGrid>...</DataGrid>
</<wpf:BusyIndicator>

but indicator not working, why? What should I do to make it work?

Answer 1

For my WPF App I have created my own wait cursor class

public class WaitCursor: IDisposable
{
    private Cursor _previousCursor;

    public WaitCursor()
    {
        _previousCursor = Mouse.OverrideCursor;
        Mouse.OverrideCursor = Cursors.Wait;
    }

    public void Dispose()
    {
        Mouse.OverrideCursor = _previousCursor;
    }
}

and call it like this

// Some code for which you do not want wait cursor
// ...

using(new WaitCursor())
{
    dataGrid1.ItemsSource = source;
}