I tried to implement batch update (AutoCRUD=false) with activation, but my implementation works for normal update but I got a problem when edit the same row for TWICE.

protected void WebDataGrid1_RowUpdating(object sender, RowUpdatingEventArgs e)
{

    //Add rows with new values to temp datset
    dstTemp.Tables[0].AddRow.....

    //to prevent show old values after editing
    e.Cancel = true;
}

protected void SaveButton_Click(object sender, EventArgs e)
{
    SqlDataSource1.Update();
}

protected void SqlDataSource1_Updating(object sender, SqlDataSourceStatusEventArgs e)
{
    //update temp dataset to DB
}

Steps:
1. Edit field A of first row.
2. Edit field A of second row.
3. Edit field B of first row.
4. Click Save Button.

RowUpdating fires twice after Save Button is clicked. But I just can get field B's new value of first row, e.Values["FIELD_A"] only gives old value. Please help!