metadata

问题 How to override the TextProperty Metadata to set the UpdateSourceTrigger.PropertyChanged by default while using the functionality from the base TextBox Class TextBox.OnTextPropertyChanged TextBox.CoerceText methods, when both mentioned are private ? public class MyTextBox : System.Windows.Controls.TextBox { static MyTextBox() { TextProperty.OverrideMetadata(typeof(TextBox), new FrameworkPropertyMetadata( string.Empty, FrameworkPropertyMetadataOptions.Journal | FrameworkPropertyMetadataOptions

问题 Following my previous question " Save WooCommerce order item custom fields sum as a new meta data" , when an order is placed, some order item custom meta data quantity , assemblycost and calculated_field (which value is to quantity x assemblycost ) are saved. How can I save as custom order meta data the sum of all order items calculated_field values? For example, a sample order would look like so: Product A: assemblycost: 10 quantity: 2 calculated_field: 20 Product B: assemblycost: 15

问题 Following my previous question " Save WooCommerce order item custom fields sum as a new meta data" , when an order is placed, some order item custom meta data quantity , assemblycost and calculated_field (which value is to quantity x assemblycost ) are saved. How can I save as custom order meta data the sum of all order items calculated_field values? For example, a sample order would look like so: Product A: assemblycost: 10 quantity: 2 calculated_field: 20 Product B: assemblycost: 15

问题 With the preview 2 release of ASP.NET MVC 2, we now have base classes to implement our own custom providers for metadata and validation. Specifically, with ModelMetadataProvider and ModelValidatorProvider. There isn't a lot of documentation on these yet (just released yesterday as a preview , so I'm neither surprised nor disappointed). Has anyone gotten custom implementations of either of these working? A very simple example (metadata and validator for just "Required") would be great! Perhaps

问题 What file metadata is preserved by Git? What is from ACL, owner, group ID, file permissions, atime, ctime, mtime preserved in Git history? As I know there is special handling for executable permission: git add --chmod=+x one.txt git add --chmod=-x two.txt Is anything else preserved by Git? 回答1: Virtually none. Git will look at the x bits in the result of stat . If any of the three are set, Git will save the file using a tree entry in which the mode is 100755 . Otherwise Git will save the file

问题 What file metadata is preserved by Git? What is from ACL, owner, group ID, file permissions, atime, ctime, mtime preserved in Git history? As I know there is special handling for executable permission: git add --chmod=+x one.txt git add --chmod=-x two.txt Is anything else preserved by Git? 回答1: Virtually none. Git will look at the x bits in the result of stat . If any of the three are set, Git will save the file using a tree entry in which the mode is 100755 . Otherwise Git will save the file

问题 Why can't I set ShowForEdit model metadata with an attribute? It seems that the only attribute provided to alter this is [ScaffoldColumn] , which sets both ShowForEdit and ShowForDisplay , which is not what I want to do. I want to be able to annotate the two separately from on my model. 回答1: Because it is not supported out of the box. AFAIK the reason is because the dataannotations attribute that support this functionality are in .net 4.0 and in order to make MVC 3.5 and 4.0 compatible they

问题 I want to add metadata to a byte array in Clojure. Since this is not allowed, one option I want to try is the simplest object wrapper that could work. Here is the source code for with-meta. That made me start looking at Clojure.lang.IObj . I haven't found what I want yet. 回答1: Here's how you can create a deftype that supports metadata. (import '(java.io Writer)) (deftype Box [value _meta] clojure.lang.IObj (meta [_] _meta) (withMeta [_ m] (Box. value m)) clojure.lang.IDeref (deref [_] value)

问题 I need to store custom data with a file in file system (about 50 bytes with each file). I do not have any other storage to keep the data and can not create an extra file for this. These are my requirements I can not change it. I have found that this can be done using UserDefinedFileAttributeView class. What file systems support this feature? NTFS, FAT, any other file systems on Linux? Where the data is actually stored and how reliable is it? 回答1: I have tested that custom attributes are

问题 I'm going to get data with Restlet of this official OData page: http://services.odata.org/OData/OData.svc/ I've started this tutorial : http://weblogs.asp.net/uruit/archive/2011/09/13/accessing-odata-from-android-using-restlet.aspx My problem is, that at the end, he can't get the metadata . But first: When I'm trying to generate the Restleg-Files (Point 5), the console is showing this, where the lines with are date are red : --------------------------- OData client code generator ------------