我有一个像这样的SQL CLR函数:
public partial class UserDefinedFunctions {
[Microsoft.SqlServer.Server.SqlFunction(TableDefinition = "number int", FillRowMethodName = "FillRow")]
public static IEnumerable MyClrFunction(object obj) {
// read obj array input and then
var result = new ArrayList();
result.Add((SqlInt32)1);
result.Add((SqlInt32)2);
result.Add((SqlInt32)3);
return result;
}
public static void FillRow(object obj, out SqlInt32 number) {
number = (SqlInt32)obj;
}
}
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我想用这种方式使用它:
DECLARE @x arrayOfInt
INSERT INTO @x VALUES (10)
INSERT INTO @x VALUES (20)
INSERT INTO @x VALUES (30)
SELECT * FROM dbo.MyClrFunction(@x)
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arrayOfInt是:
CREATE TYPE [dbo].[arrayOfInt] …Run Code Online (Sandbox Code Playgroud) sql-server sqlclr user-defined-functions table-valued-parameters
在Firefox 17.0.1中,当我尝试打开IndexedDB数据库时,Firebug控制台向我显示InvalidStateError异常.此外request.onerror事件引发,但event.target.errorCode是不确定的.
if (window.indexedDB) {
var request = window.indexedDB.open('demo', 1);
request.onsuccess = function(event) {
// not raised
};
request.onupgradeneeded = function(event) {
// not raised
};
request.onerror = function(event) {
// raised with InvalidStateError
};
}
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有没有人在Firefox中有过IndexedDB的经验?
更新
Firefox 18.0.1具有相同的行为.Comlete来源.
如何在Azure存储中获取容器大小?我通过C#API访问Azure存储:
var account = CloudStorageAccount.Parse(ConfigurationManager.AppSettings["AzureStoragePrimary"]);
var client = account.CreateCloudBlobClient();
var container = client.GetContainerReference("myContainer");
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ServiceController sc = new ServiceController("MyService");
sc.ExecuteCommand(255);
Run Code Online (Sandbox Code Playgroud) 我已将sqlite-net-pcl NuGet 包添加到 Xamarin.iOS 项目中。该应用程序以以下异常结束:
找不到程序集“SQLite-net,Version=1.1.0.0,Culture=neutral,PublicKeyToken=null”引用的“SQLitePCLRaw.batteries_v2”。
是否知道此问题有任何解决方法?
macOS 塞拉利昂版本:10.12.5
Xcode版本:8.3.2
sqlite-net-pcl 版本:1.0.11
Visual Studio for Mac 版本:7.0
Xamarin.iOS版本:10.10.0.33
在许多OutOfMemoryExceptions之后,我运行内存分析器.System.LocalDataStoreElement [] cunsumes 123 GB的内存.初始化后应用程序消耗70 MB.处理完一些数据后,内存分配为700 MB(即使在几次GC.Collect()调用之后).我使用Code-First Entity Framework 4.1 Update 1.这个内存分配对于Code-First是否常见?
我不知道为什么这段代码工作正常:
<ScrollViewer Height="674" HorizontalAlignment="Left" VerticalAlignment="Top" Width="480" Margin="0,94,0,0" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden">
<StackPanel>
<Button Content="custom control" VerticalAlignment="Center" Width="480" Height="70" />
<Button Content="custom control" VerticalAlignment="Center" Width="480" Height="70" />
<Button Content="custom control" VerticalAlignment="Center" Width="480" Height="70" />
<Button Content="custom control" VerticalAlignment="Center" Width="480" Height="70" />
<Button Content="custom control" VerticalAlignment="Center" Width="480" Height="70" />
<Button Content="custom control" VerticalAlignment="Center" Width="480" Height="70" />
<Button Content="custom control" VerticalAlignment="Center" Width="480" Height="70" />
<Button Content="custom control" VerticalAlignment="Center" Width="480" Height="70" />
<Button Content="custom control" VerticalAlignment="Center" Width="480" Height="70" />
<Button Content="custom control" VerticalAlignment="Center" Width="480" Height="70" /> …Run Code Online (Sandbox Code Playgroud) 我需要打开WPF中的Tiff图像到内存中的所有帧,然后删除源.之后,我最终需要渲染该图像(根据窗口大小调整大小).我的解决方案非常慢,我无法在第一次要求之前删除文件源.任何最佳做法?
如何在C++中将long转换为LPCWSTR?我需要类似于这个的功能:
LPCWSTR ToString(long num) {
wchar_t snum;
swprintf_s( &snum, 8, L"%l", num);
std::wstring wnum = snum;
return wnum.c_str();
}
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