protected void addFilterCommand(ServerColumnFilter newFilter)
{
//Update the filter collection
if (ColumnFilters == null)
{
//Initiate the collection with the filter
ColumnFilters = new List <ServerColumnFilter> {
newFilter
};
}
else
{
//See if there is already an entry for this column
var oldfilter = ColumnFilters.FirstOrDefault(f => f.ColumnName == newFilter.ColumnName);
if (oldfilter != null)
{
if (string.IsNullOrEmpty(newFilter.FilterText))
{
ColumnFilters.Remove(oldfilter);
}
else
{
oldfilter.FilterText = newFilter.FilterText;
}
}
else
{
columnFilters.Add(newFilter);
}
}
//Send it to the server
UpdateDataStream();
}
/// <summary>
/// Send update to the listening object
/// </summary>
/// <param name="sender">Main Grid</param>
/// <param name="e">Change Information</param>
private void OnColumnFilterChanged(object sender, ColumnFilterChangedEventArgs e)
{
var filter = new ServerColumnFilter
{
ColumnName = model.GetServerColumnName(e.Column),
Operation = ServerColumnFilter.FilterOperation.StartsWith,
FilterText = e.NewValue
};
if (AddFilterCommand.CanExecute(null))
{
AddFilterCommand.Execute(filter);
}
//Go to the top of the grid
ScrolledRowNumber = 0;
}
