/// <summary>
/// Checks whether columns can be restored.
/// </summary>
/// <param name="subject">Target ManagementList.</param>
/// <param name="callback">RetryActionAfterLoaded callback method.</param>
/// <returns>True iff columns restorable.</returns>
/// <exception cref="InvalidOperationException">
/// ManagementList.AutoGenerateColumns not supported.
/// </exception>
private static bool VerifyColumnsRestorable(ManagementList subject, RetryActionCallback <ManagementList> callback)
{
if (WpfHelp.RetryActionAfterLoaded <ManagementList>(subject, callback, subject))
{
return(false);
}
if (WpfHelp.RetryActionAfterLoaded <ManagementList>(subject.List, callback, subject))
{
return(false);
}
if (subject.List == null)
{
return(false);
}
// Columns are not savable/restorable if AutoGenerateColumns is true.
if (subject.List.AutoGenerateColumns)
{
throw new InvalidOperationException("View Manager is not supported when AutoGenerateColumns is set.");
}
return(true);
}
private static bool VerifyRulesSavableAndRestorable(ManagementList subject, RetryActionCallback <ManagementList> callback)
{
if (WpfHelp.RetryActionAfterLoaded <ManagementList>(subject, callback, subject))
{
return(false);
}
if (subject.AddFilterRulePicker == null)
{
return(false);
}
if (subject.FilterRulePanel == null)
{
return(false);
}
if (subject.SearchBox == null)
{
return(false);
}
return(true);
}