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How to get the index of an item in a list in a single step?
...
For simple types you can use "IndexOf" :
List<string> arr = new List<string>();
arr.Add("aaa");
arr.Add("bbb");
arr.Add("ccc");
int i = arr.IndexOf("bbb"); // RETURNS 1.
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convert a list of objects from one type to another using lambda expression
...fferent type. I was told that a lambda expression can achieve the same result.
13 Answers
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iPhone Data Usage Tracking/Monitoring
...method provides network bytes exchanges and not just internet.
#include <net/if.h>
#include <ifaddrs.h>
static NSString *const DataCounterKeyWWANSent = @"WWANSent";
static NSString *const DataCounterKeyWWANReceived = @"WWANReceived";
static NSString *const DataCounterKeyWiFiSent = @"W...
How do I bind a WPF DataGrid to a variable number of columns?
...f we have this Collection of DataGridColumn's
public ObservableCollection<DataGridColumn> ColumnCollection
{
get;
private set;
}
Then we can bind BindableColumns to the ColumnCollection like this
<DataGrid Name="dataGrid"
local:DataGridColumnsBehavior.BindableColumns="...
How do I set the value property in AngularJS' ng-options?
...
array = [{ "value": 1, "text": "1st" }, { "value": 2, "text": "2nd" }];
<select ng-options="obj.value as obj.text for obj in array"></select>
Update
With the updates on AngularJS, it is now possible to set the actual value for the value attribute of select element with track by expr...
warning: [options] bootstrap class path not set in conjunction with -source 1.5
...ully use the old language rules combined with new libraries, which can result in class files that do not work on the older platform since references to non-existent methods can get included.
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Mixed mode assembly is built against version ‘v2.0.50727′ of the runtime
...o use this exact startup tag in your app.config under configuration node
<startup useLegacyV2RuntimeActivationPolicy="true">
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
<requiredRuntime version="v4.0.20506" />
</startup>
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WITH (NOLOCK) vs SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
...nsaction Isolation Level Read Uncommitted in a View (you can only have one script in there in fact), so you would have to use (nolock) if dirty rows should be included.
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How to: Define theme (style) item for custom widget
...ose you have a declaration of attributes for your widget (in attrs.xml):
<declare-styleable name="CustomImageButton">
<attr name="customAttr" format="string"/>
</declare-styleable>
Declare an attribute you will use for a style reference (in attrs.xml):
<declare-styleable...
How can I create and style a div using JavaScript?
...nnerHTML = "Hello";
document.getElementById("main").appendChild(div);
<body>
<div id="main"></div>
</body>
var div = document.createElement("div");
div.style.width = "100px";
div.style.height = "100px";
div.style.background = "red";
div.style.color = "white";
div...