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Cannot insert explicit value for identity column in table 'table' when IDENTITY_INSERT is set to OFF
...need to generate the OperationID by yourself. The new id can be fetched by SELECT SCOPE_IDENTITY().
– Hakan Winther
Aug 26 '09 at 13:29
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BLE 低功耗蓝牙调试助手：扫描、连接、读写、订阅通知（附 .aia 源码） · ...
...低功耗蓝牙1.ConnectWithAddress(设备地址表[列表显示框_设备.SelectionIndex])
}
连接后列出特征，并判断能读、能写、能通知
DeviceCharacteristics 是「[服务UUID, 特征UUID, 名称]」三元组的列表。Connected 事件在服务发现完...
Visual Studio Solutions Folder as real Folders
...tion Folder'. This will create a solution folder with the same name as you selected and add the items inside of that folder to the solution folder. This will not move the files on disk.
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LINQ Distinct operator, ignore case?
..."One", "Two", "Three", "three", "Four", "Five" };
var z = (from x in list select new { item = x.ToLower()}).Distinct();
z.Dump();
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Django - filtering on foreign key properties
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Is this going to hit the DB twice, should I be using select_related() to make this more optimal?
– Fraser Graham
Dec 30 '09 at 22:52
5
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How can I use a DLL file from Python?
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Next;
Application type -> DLL;
Additional options -> Empty project (select);
Additional options -> Precompiled header (unselect);
Project -> Properties -> Configuration Manager -> Active solution platform: x64;
Project -> Properties -> Configuration Manager -> Active solu...
How to Copy Contents of One Canvas to Another Canvas Locally
... are building a website that uses lots of image/canvas operations.
// select canvas elements
var sourceCanvas = document.getElementById("some-unique-id");
var destCanvas = document.getElementsByClassName("some-class-selector")[0];
//copy canvas by DataUrl
var sourceImageData = ...
Adding Permissions in AndroidManifest.xml in Android Studio?
...s you get a list of permissions and also hint to move caret up and down to select the same.
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Get type name without full namespace
...Join(", ", type.GetGenericArguments()
.Select(t => t.CSharpName())));
sb.Append(">");
return sb.ToString();
}
Maybe not the best solution (due to the recursion), but it works. Outputs look like:
Dictionary<String, Object>
...
Does Python have a ternary conditional operator?
... This one emphasizes the primary intent of the ternary operator: value selection. It also shows that more than one ternary can be chained together into a single expression.
– Roy Tinker
Oct 4 '10 at 21:14
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