dynamic

问题 Because of a plug-in architecture, I'm trying to add a bean programmatically to my webapp. I have a Spring bean created through the @Component annotation, and i am implementing the ApplicationContextAware interface. My override function looks like this: @Override public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { // this fails this.applicationContext = (GenericWebApplicationContext) applicationContext; } Basically, I can't figure out how to add a

问题 What are the real world pros and cons of executing a dynamic SQL command in a stored procedure in SQL Server using EXEC (@SQL) versus EXEC SP_EXECUTESQL @SQL ? 回答1: sp_executesql is more likely to promote query plan reuse. When using sp_executesql , parameters are explicitly identified in the calling signature. This excellent article descibes this process. The oft cited reference for many aspects of dynamic sql is Erland Sommarskog's must read: "The Curse and Blessings of Dynamic SQL". 回答2:

问题 Does anyone know how to create an animated gif using c#? Ideally I would have some control over the color reduction used. Is using imagemagick (as an external started process) the best choice? 回答1: There is a built in .NET class which will encode GIF files. GifBitmapEncode MSDN System.Windows.Media.Imaging.GifBitmapEncoder gEnc = new GifBitmapEncoder(); foreach (System.Drawing.Bitmap bmpImage in images) { var bmp = bmpImage.GetHbitmap(); var src = System.Windows.Interop.Imaging

问题 I'm trying to change the form action based on the selected value from a dropdown menu. Basically, the HTML looks like this: <form class="search-form" id="search-form" method="post" accept-charset="UTF-8" action="/search/user"> <select id="selectsearch" class="form-select" name="selectsearch"> <option value="people">Search people</option> <option value="node">Search content</option> </select> <label>Enter your keywords: </label> <input type="text" class="form-text" value="" size="40" id="edit

问题 I want to change the height of my tableview from another viewcontroller based on the sum of its cells' heights, as they are dynamic. Is it at all possible? Thanks Add-on: What I basically have is a UserProfileViewController that has a containerview on half of the screen. There I add different other viewcontrollers: In the case of the wall button this is how I add the viewcontroller and it's subsequent tableview: - (IBAction)wallButtonPressed:(id)sender { //Check if there is an instance of the

问题 C# 4.0 introduced a new type called 'dynamic'. It all sounds good, but what would a programmer use it for? Is there a situation where it can save the day? 回答1: The dynamic keyword is new to C# 4.0, and is used to tell the compiler that a variable's type can change or that it is not known until runtime. Think of it as being able to interact with an Object without having to cast it. dynamic cust = GetCustomer(); cust.FirstName = "foo"; // works as expected cust.Process(); // works as expected

问题 C# 4.0 introduced a new type called 'dynamic'. It all sounds good, but what would a programmer use it for? Is there a situation where it can save the day? 回答1: The dynamic keyword is new to C# 4.0, and is used to tell the compiler that a variable's type can change or that it is not known until runtime. Think of it as being able to interact with an Object without having to cast it. dynamic cust = GetCustomer(); cust.FirstName = "foo"; // works as expected cust.Process(); // works as expected

问题 C# 4.0 introduced a new type called 'dynamic'. It all sounds good, but what would a programmer use it for? Is there a situation where it can save the day? 回答1: The dynamic keyword is new to C# 4.0, and is used to tell the compiler that a variable's type can change or that it is not known until runtime. Think of it as being able to interact with an Object without having to cast it. dynamic cust = GetCustomer(); cust.FirstName = "foo"; // works as expected cust.Process(); // works as expected

问题 The Situation Nested within our Angular app is a directive called Page, backed by a controller, which contains a div with an ng-bind-html-unsafe attribute. This is assigned to a $scope var called 'pageContent'. This var gets assigned dynamically generated HTML from a database. When the user flips to the next page, a called to the DB is made, and the pageContent var is set to this new HTML, which gets rendered onscreen through ng-bind-html-unsafe. Here's the code: Page directive angular.module

问题 The Situation Nested within our Angular app is a directive called Page, backed by a controller, which contains a div with an ng-bind-html-unsafe attribute. This is assigned to a $scope var called 'pageContent'. This var gets assigned dynamically generated HTML from a database. When the user flips to the next page, a called to the DB is made, and the pageContent var is set to this new HTML, which gets rendered onscreen through ng-bind-html-unsafe. Here's the code: Page directive angular.module