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What's the hardest or most misunderstood aspect of LINQ? [closed]
...string> { "Bob", "Alice", "Trent" };
var results = from s in items select s;
Console.WriteLine("Before add:");
foreach (var result in results)
{
Console.WriteLine(result);
}
items.Add("Mallory");
//
// Enumerating the results again will return the new ...
Should I commit or rollback a read transaction?
... I create a temp table, populate it with ids, join it with a data table to select the data that goes with the ids, then delete the temp table. I'm really just reading data, and I don't care what happens to the temp table, since it's temporary... but from a performance perspective, would it be more ...
Can't start hostednetwork
...ame "Microsoft Hosted Network Virtual Adapter" and then right click on it.
Select Enable
This will enable the AdHoc created connection, it should appear in the network connections in Network and Sharing Center, if the AdHoc network connection is not appear then open elevated command prompt and apply...
Procedure expects parameter which was not supplied
... data tab [beside layout and Preview tabs] next to the name of the dataset selected, there is another drop down control that lets you change the CommandType. Enjoy!
– SarjanWebDev
Aug 14 '12 at 6:17
...
Split List into Sublists with LINQ
...t;> Split<T>(IList<T> source)
{
return source
.Select((x, i) => new { Index = i, Value = x })
.GroupBy(x => x.Index / 3)
.Select(x => x.Select(v => v.Value).ToList())
.ToList();
}
The idea is to first group the elements by indexes. D...
How to split/partition a dataset into training and test datasets for, e.g., cross validation?
...escribes, you can just use the following instructions:
from sklearn.model_selection import train_test_split
data, labels = np.arange(10).reshape((5, 2)), range(5)
data_train, data_test, labels_train, labels_test = train_test_split(data, labels, test_size=0.20, random_state=42)
This way you can ...
How to get element by innerText
... This should be the top answer. XPath can do much more, like select node by attribute value, select node sets ... Simple intro: w3schools.com/xml/xpath_syntax.asp
– Timathon
Dec 2 '17 at 2:43
...
Entity Framework: There is already an open DataReader associated with this Command
...al commands executed on single connection (or single command with multiple selects) while next DataReader is executed before first one has completed the reading. The only way to avoid the exception is to allow multiple nested DataReaders = turn on MultipleActiveResultSets. Another scenario when this...
iOS 7 TableView like in Settings App on iPad
...)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([cell respondsToSelector:@selector(tintColor)]) {
if (tableView == self.tableView) {
CGFloat cornerRadius = 5.f;
cell.backgroundColor = UIColor.clearColor;
CAShapeLayer *layer = [[CAShapeLayer allo...
What specific productivity gains do Vim/Emacs provide over GUI text editors?
...
Yeah, the mouse can be a timesaver for selecting areas of text, or moving the cursor to a specific spot in a large amount of text. Otherwise, it's a waste.
– T.E.D.
Jul 7 '09 at 14:27
...