public void AddDataSourceInfo(DataSourceInfo dataSourceInfo)
{
if (dataSourceInfo.Index < 1)
{
dataSourceInfo.Index = (from item in this.DataSources.OfType <DataSourceInfo>() select item.Index).DefaultIfEmpty().Max() + 1;
}
this.DataSources.Add(dataSourceInfo);
}
public void RemoveDataSourceInfo(DataSourceInfo dataSourceInfo)
{
this.DataSources.Remove(dataSourceInfo);
}