/// <summary>
/// Raises the Executed event and clears the operation cache.
/// </summary>
/// <param name="e">The ExecutableEventArgs.</param>
protected virtual void OnExecuted(ExecutableEventArgs e)
{
if (clearCache && e.Executable is IOperation operation)
{
OperationCache cache = new OperationCache(operation);
cache.Clear();
}
Executed?.Invoke(this, e);
}
/// <summary>
///
/// </summary>
/// <param name="row"></param>
/// <param name="cancel"></param>
/// <param name="progress"></param>
/// <returns></returns>
/// <remarks>http://www.csharp-examples.net/dataview-rowfilter/</remarks>
protected virtual object GetCachedDataSourceValue(DataRow row, CancellationToken cancel, IProgress <ExecutionProgress> progress)
{
DataTable dataTable = default(DataTable);
if (Parent is IOperation operation)
{
OperationCache cache = new OperationCache(operation);
string cacheKey = string.Format("LookupValue:{0}", dataSource.ID);
dataTable = (DataTable)cache[cacheKey];
if (dataTable == default(DataTable))
{
dataTable = DataSource.GetDataTable(cancel, progress);
cache[cacheKey] = dataTable;
}
}
return(GetDataSourceValue(dataTable, row, cancel, progress));
}