dynamic

问题 I have made a custom UserControl i Vb.net (windows application). How can I add this dynamically to a form? 回答1: A UserControl is essentially just another class. It inherits from Control, so you can do all kinds of things you do with controls, but otherwise it's just a class. Thus, to add the usercontrol dynamically to your form you'd do the following: Create a new instance of your control. Like Dim X As New MyControl() Add the control to your form as a child object to whatever container you

问题 I have made a custom UserControl i Vb.net (windows application). How can I add this dynamically to a form? 回答1: A UserControl is essentially just another class. It inherits from Control, so you can do all kinds of things you do with controls, but otherwise it's just a class. Thus, to add the usercontrol dynamically to your form you'd do the following: Create a new instance of your control. Like Dim X As New MyControl() Add the control to your form as a child object to whatever container you

问题 Hey guys, i want to change the header text of the gridview using Design.. from <TemplateField HeaderText=""> i created a variable in code behind which is public and set the value in that variable and then i tried to call that variable over here as below: <TemplateField HeaderText = '<%= VariableCallHere %>' but while running page i got <%= VariableCallHere %> as a header text even i tried changing using gridView1.HeaderRow.Cells[0].Text = "text Here" (This Throws object reference error) Any

问题 From what I have read, there seems to be two ways to get an object from a class name. What are the differences between using NSClassFromString() and NSBundle 's classNamed:(NSString *) ? 回答1: NSClassFromString() returns a class that has been registered with the runtime for the given name. NSBundle's classNamed: returns the class with the given name inside the bundle, which may not have been loaded yet (which means it will load the bundle if necessary). But a different way: An NSBundle

问题 I'm not particularly good with jQuery, so a complete code solution would be ideal. The function will: Get the 70% width of the browser's screen. Convert that width into its corresponding px value Set the max width of the #mainContainer using the value got from the conversion/calculation. Here is the CSS style for the container I want to set max-width with: #mainContainer { background-image: url(bg3.jpg); background-repeat: repeat; background-color: #999; width: 70%; padding: 0; min-width:

问题 Could you briefly explain what @objc and dynamic mean in Swift 4 using Xcode 9.x? With tries and errors and following articles in the stackoverflow, I have eventually achieved this snippet to work. But I would like to know a little bit about those magical keywords. class SampleViewController: NSViewController { @objc class Parameters : NSObject { @objc dynamic var value1: Double = 0 // bound to Value of a NSTextfield with NumberFormatter @objc dynamic var value2: Double = 0 // as "parameters

问题 Could you briefly explain what @objc and dynamic mean in Swift 4 using Xcode 9.x? With tries and errors and following articles in the stackoverflow, I have eventually achieved this snippet to work. But I would like to know a little bit about those magical keywords. class SampleViewController: NSViewController { @objc class Parameters : NSObject { @objc dynamic var value1: Double = 0 // bound to Value of a NSTextfield with NumberFormatter @objc dynamic var value2: Double = 0 // as "parameters

问题 I'd like to do something like this: public static function createDynamic(){ $mydynamicvar = 'module'; self::$mydynamicvar = $value; } and be able to access the property from within the class with $value = self::$module; 回答1: I don't know exactly why you would want to do this, but this works. You have to access the dynamic 'variables' like a function because there is no __getStatic() magic method in PHP yet. class myclass{ static $myvariablearray = array(); public static function createDynamic

问题 I'm creating dynamic table which having more than 20 rows and number of columns can be change according to user input. first column is header and other columns need to bind using data returning from web services. And there are few rows which can editable. when user click on submit button need to validate the changed cells and process the data. I have created ASP.net table and added rows and cells one by one. but this is not reusable way of doing, is there any alternative to create editable

问题 I am trying to share an image from my website on facebook. The image can be dynamic, but other meta will remain the same. Is there a way I can have dynamic data in OG:IMAGE tag, or will I have to go with the other option of FB Post APIs. 回答1: Yes and no. Facebook scrapes your site once, and cached the metadata that it finds, unless you specifically go here and force the scraper to crawl your site again. The cache does generally expire (perhaps after 1-2 days?), so when requested again outside