public WorkbookContext GetWorkBookContext(Excel.Workbook workbook)
{
if (null == workbook)
{
throw new ArgumentNullException("workbook");
}
bool isNotCurrent = false;
WorkbookContext workbookContext = null;
if (null == this.currentWorkbookContext)
{
isNotCurrent = true;
}
else if (this.currentWorkbookContext.Id != WorkbookContext.GetContextId(workbook))
{
isNotCurrent = true;
}
if (isNotCurrent)
{
workbookContext = new WorkbookContext(workbook);
}
else
{
workbookContext = this.currentWorkbookContext;
workbookContext.Update();
}
return(workbookContext);
}
private void Purge()
{
var now = DateTime.Now;
if ((now - this.purgeTime).TotalHours < 1)
{
return;
}
this.purgeTime = now;
foreach (Excel.Workbook workbook in App.Excel.Workbooks)
{
var workbookContextId = WorkbookContext.GetContextId(workbook);
if (!this.dic.ContainsKey(workbookContextId))
{
this.dic.Remove(workbookContextId);
}
}
}
