public DataTableRelation(string relationName, DataTableLoaderConfiguration parentDataTableLoaderConfiguration, string parentColumn, DataTableLoaderConfiguration childDataTableLoaderConfiguration, string childColumn)
{
if (string.IsNullOrEmpty(relationName))
{
throw new ArgumentException("relationName can not be null or empty.", "relationName");
}
if (parentDataTableLoaderConfiguration == null)
{
throw new ArgumentNullException("parentDataTableLoaderConfiguration");
}
if (string.IsNullOrEmpty(parentColumn))
{
throw new ArgumentException("parentColumn can not be null or empty.", "parentColumn");
}
if (childDataTableLoaderConfiguration == null)
{
throw new ArgumentNullException("childDataTableLoaderConfiguration");
}
if (string.IsNullOrEmpty(childColumn))
{
throw new ArgumentException("childColumn can not be null or empty.", "childColumn");
}
this.RelationName = relationName;
this.ParentDataTableLoaderConfiguration = parentDataTableLoaderConfiguration;
this.ParentColumn = parentColumn;
this.ChildDataTableLoaderConfiguration = childDataTableLoaderConfiguration;
this.ChildColumn = childColumn;
this.Nested = true;
}
public DataTableLoader GetDataTableLoader(string name)
{
DataTableLoaderConfiguration dataTableLoaderConfiguration = this.GetDataTableLoaderConfiguration(name);
if (dataTableLoaderConfiguration != null)
{
if (dataTableLoaderConfiguration.DataTableLoader == null)
{
this.CreateDataTableLoader(dataTableLoaderConfiguration);
}
return(dataTableLoaderConfiguration.DataTableLoader);
}
return(null);
}
public DataTableLoaderConfiguration AddDataTableLoaderConfiguration(string name, IDataTableLoaderCreator dataTableLoaderCreator)
{
if (string.IsNullOrEmpty(name))
{
throw new ArgumentException("name can not be null or empty.", "name");
}
if (dataTableLoaderCreator == null)
{
throw new ArgumentNullException("dataTableLoaderCreator");
}
DataTableLoaderConfiguration dataTableLoaderConfiguration = new DataTableLoaderConfiguration(name, dataTableLoaderCreator);
this.backendDataTableLoaderConfigurations.Add(dataTableLoaderConfiguration);
return(dataTableLoaderConfiguration);
}
private void CreateDataTableLoader(DataTableLoaderConfiguration config)
{
if (config.DataTableLoader != null)
{
throw new InvalidOperationException(string.Format("DataTableLoader for '{0}' has been created.", config.Name));
}
config.CreateDataTableLoader();
if (this.DataSet.Tables.IndexOf(config.DataTable) == -1)
{
this.DataSet.Tables.Add(config.DataTable);
}
foreach (DataTableRelation dataTableRelation in this.DataTableRelations)
{
if (dataTableRelation.Appliable)
{
dataTableRelation.Apply();
}
}
}
