本文整理汇总了C#中System.Guid.FirstOrDefault方法的典型用法代码示例。如果您正苦于以下问题：C# Guid.FirstOrDefault方法的具体用法？C# Guid.FirstOrDefault怎么用？C# Guid.FirstOrDefault使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Guid的用法示例。
在下文中一共展示了Guid.FirstOrDefault方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: GetCollectionFromTimeline
public Guid GetCollectionFromTimeline(Guid? timelineId)
{
if (timelineId == null)
{
return Guid.Empty;
}
IEnumerable<Guid> collectionGuid = new Guid[0];
try
{
retryPolicy.ExecuteAction(
() =>
{
collectionGuid = Database.SqlQuery<Guid>("SELECT Collection_Id FROM Timelines WHERE Id = {0}", timelineId);
});
}
catch (Exception e)
{
throw e;
}
return collectionGuid.FirstOrDefault();
}示例2: GetCollectionFromContentItemGuid
public Guid GetCollectionFromContentItemGuid(Guid contentId)
{
IEnumerable<Guid> collectionGuid = new Guid[0];
try
{
retryPolicy.ExecuteAction(
() =>
{
collectionGuid = Database.SqlQuery<Guid>("SELECT Collection_Id FROM ContentItems WHERE Id = {0}", contentId);
});
}
catch (Exception e)
{
throw e;
}
return collectionGuid.FirstOrDefault();
}示例3: GetCollectionGuid
public Guid GetCollectionGuid(string title)
{
IEnumerable<Guid> collectionGuid = new Guid[0];
try
{
retryPolicy.ExecuteAction(
() =>
{
collectionGuid = Database.SqlQuery<Guid>("SELECT Id FROM Collections WHERE Title = {0}", title);
});
}
catch (Exception e)
{
throw e;
}
return collectionGuid.FirstOrDefault();
}