大约有 46,000 项符合查询结果（耗时：0.0554秒） [XML]
How to implement an android:background that doesn't stretch?
...its in height and keeps aspect ratio
android:contentDescription="@string/image"
android:src="@drawable/your_image" />
<LinearLayout
android:id="@+id/main_root"
android:layout_width="match_parent"
android:layout_height="match_parent"
android...
Entity Framework: There is already an open DataReader associated with this Command
...ecuted). You can also try to cast the query to ObjectQuery and call ToTraceString to see the SQL command. It is hard to track. I always turn on MARS.
– Ladislav Mrnka
Feb 1 '11 at 22:27
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How do you create a transparent demo screen for an Android app?
...ViewTarget(showcasedView);
ShowcaseView.insertShowcaseView(target, this, R.string.showcase_title, R.string.showcase_details);
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How to create a custom string representation for a class object?
...object):
__metaclass__ = MC
print C
Use __str__ if you mean a readable stringification, use __repr__ for unambiguous representations.
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What is the difference between `let` and `var` in swift?
...This is not immediately obvious from basic examples involving integers and strings.
– SaltyNuts
Apr 27 '15 at 15:56
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How can I get the domain name of my site within a Django template?
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Since it's a function, the host string won't be processed unless it's used anyway. So, you can just assign a function to 'site_root' and you don't need SimpleLazyObject. Django will call the function when it's used. You've already created the necessary fun...
C# 操作MongoDb插入、更新、查询 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...ollection != null)
{
foreach (var col in collection)
{
string id = MongoDataHelper.GetString(col, "_id");
}
}
提示函数过期警告：
warning CS0618: “MongoDB.Driver.MongoServer.Create(string)”已过时:“Use MongoClient.GetServer instead.”
解决：
MongoS...
SCOPE_IDENTITY() for GUIDs?
...read the value from .Net you would just use the ExecuteScalar method.
...
string sql = "INSERT INTO GuidTest(IntColumn) OUTPUT inserted.GuidColumn VALUES(1)";
SqlCommand cmd = new SqlCommand(sql, conn);
Guid guid = (Guid)cmd.ExecuteScalar();
...
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Mutex example / tutorial? [closed]
... entry to the room much like the phone booth. So now, even though you have extra mutexes, you can reuse the phone booth in any project. Another option would be to expose locking mechanisms for each device in the room and manage the locks in the room class. Either way, you wouldn't add new locks to t...
jQuery posting valid json in request body
...rding to the jQuery Ajax docs , it serializes data in the form of a query string when sending requests, but setting processData:false should allow me to send actual JSON in the body. Unfortunately I'm having a hard time determining first, if this is happening and 2nd what the object looks like t...