Tutorial by Examples: io

public static IWebDriver dismissAlert(this IWebDriver driver) { try { IAlert alert = driver.SwitchTo().Alert(); alert.Dismiss(); } catch {} return driver; } public static IWebDriver acceptAlert(this IWebDriver driver) { try { IAlert a...

public static Screenshot TakeScreenshot(this IWebDriver _driver) { return ((ITakesScreenshot)_driver).GetScreenshot(); } Usage example: driver.TakeScreenshot().SaveAsFile(@"/Test/Test.png",ImageFormat.Png);

Dynamic queries are SET @sql = N'SELECT COUNT(*) FROM AppUsers WHERE Username = ''' + @user + ''' AND Password = ''' + @pass + '''' EXEC(@sql) If value of user variable is myusername'' OR 1=1 -- the following query will be executed: SELECT COUNT(*) FROM AppUsers WHERE Username = 'myusername...

There are many reasons a write operation may fail. A frequent one is because your security rules reject the operation, for example because you're not authenticated (by default a database can only be accessed by an authenticated user). You can see these security rule violations in the output of your...

SQL Server 2008 The ROW_NUMBER function can assign an incrementing number to each row in a result set. Combined with a Common Table Expression that uses a BETWEEN operator, it is possible to create 'pages' of result sets. For example: page one containing results 1-10, page two containing results 11...

SQL Server 2012 The OFFSET FETCH clause implements pagination in a more concise manner. With it, it's possible to skip N1 rows (specified in OFFSET) and return the next N2 rows (specified in FETCH): SELECT * FROM sys.objects ORDER BY object_id OFFSET 40 ROWS FETCH NEXT 10 ROWS ONLY The ORDER...

Recommended way to install Slim framework is by using composer. Create an empty directory This directory will contain all required files for our Slim application to run. We call this directory root directory so we can address all other application files and directories relative to root directo...

This method doesn't require initialization of the tracker, which is handy if the state should be changed outside of the site context (for example in the shell). var stateManager = AutomationStateManager.Create(contact); automationStateManager.MoveToEngagementState(stateItem.ParentID, stateId); st...

When you use UNION operator on two query results, Query optimizer (QO) can use following operators to create a union of two result sets: Merge (Union) Concat (Union) Hash Match (Union) You can explicitly specify what operator should be used using OPTION() hint: select OrderID, OrderDate, Ex...

Specifies the max degree of parallelism for the query specifying this option. SELECT OrderID, AVG(Quantity) FROM Sales.OrderLines GROUP BY OrderID OPTION (MAXDOP 2); This option overrides the MAXDOP configuration option of sp_configure and Resource Governor. If MAXDOP is set to zero then...

By using the method GET_SUBMATCH of class CL_ABAP_MATCHER, we can get the data in the groups/subgroups. Goal: get the token to the right of the keyword 'Type'. DATA: lv_pattern TYPE string VALUE 'type\s+(\w+)', lv_test TYPE string VALUE 'data lwa type mara'. CREATE OBJECT ref_regex EX...

1. Bagged Decision Trees Bagging performs best with algorithms that have high variance. A popular example are decision trees, often constructed without pruning. In the example below see an example of using the BaggingClassifier with the Classification and Regression Trees algorithm (DecisionTreeCl...

[UIView animateWithDuration:1.0 animations:^{ someView.alpha = 0; otherView.alpha = 1; } completion:^(BOOL finished) { [someView removeFromSuperview]; }]; The carat “^” character defines a block. For example, ^{ … } is a block. More specifically, it is a blo...

<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath:ReleaseBundle.properties</value> </list> </bean>

try: metadata = metadata['properties'] except KeyError: pass

class CompileError(Exception): pass

Add Firebase to Your Android Project Add Firebase to your app To add Firebase to your app you'll need a Firebase project and a Firebase configuration file for your app. Create a Firebase project in the Firebase console, if you don't already have one. If you already have an existing Google proje...

The header ctype.h is a part of the standard C library. It provides functions for classifying and converting characters. All of these functions take one parameter, an int that must be either EOF or representable as an unsigned char. The names of the classifying functions are prefixed with 'is'. Ea...

Character modifying functions include converting characters to upper or lower case characters, converting numbers to formatted numbers, performing character manipulation, etc. The lower(char) function converts the given character parameter to be lower-cased characters. SELECT customer_id, lower(cu...

Before Auto Layout, you always had to tell buttons and other controls how big they should be, either by setting their frame or bounds properties or by resizing them in Interface Builder. But it turns out that most controls are perfectly capable of determining how much space they need, based on their...