dynamic

问题 I have two tables Application_User and Application_User_Access. Application_User_Access table is having a foreign key constraint with Application_User table. When I delete a record in Application_User table, I receive "The DELETE statement conflicted with the REFERENCE constraint" exception. This happens in ASP.NET Dynamic Data Entities Web application. I want to delete all the child records in this case and finally delete the parent record. How to implement this? 回答1: You can implement a

问题 I want to add dynamic tab items. I have a fragment which is FragmentOne and it has a TextView. I'm trying create FragmentOne in foreach and add to tabs. I tested code which is in setupViewPager but it doesn't work. How can I edit TextView which in fragments? if I remove this lines it works but contents of fragment always show default that = "TAB ONE". I want to edit all TextView which is in fragments that created at run time; View view = fView.getView(); TextView txtTabItemNumber = (TextView

问题 Presently in LINQ, the following compiles and works just fine: var listOfFoo = myData.Select(x => new FooModel{ someProperty = x.prop1, someOtherProperty = x.prop2 }); public class FooModel{ public string someProperty { get; set; }; public string someOtherProperty { get; set; }; } However, the past few versions of .NET/C# have expanded the role of dynamic objects such as the ExpandoObject and I am wondering if there is a way to basically do this: var listOfFoo = myData.Select(x => new

问题 I have www.did5.com point to google appengine server I want to have anyname.did5.com point to www.did5.com/anyname And the url in address bar still anyname.did5.com I can't find the way to do by using dns setting (host records) Can anyone do ? Please help.. 回答1: Have the same wish, but had to do HTTP 301 redirect from my domain hosting to an appengine site. It works normally, but it's required to have a working hosting, but not only domain parking. So please try to edit ".htaccess" file,

问题 In the book The Pragmatic Programmer, the authors suggest that all method inputs should be validated. This allows problems with a method to be caught early and their sources traced easily. In my Mac application, I accomplished this by creating an Assert class. This class has several class methods. These methods determine if some precondition is met, and if it is not, then an exception is thrown. A typical assertion might looks something like this: -(void) setWidth: (int) theWidth { [Assert

问题 In the book The Pragmatic Programmer, the authors suggest that all method inputs should be validated. This allows problems with a method to be caught early and their sources traced easily. In my Mac application, I accomplished this by creating an Assert class. This class has several class methods. These methods determine if some precondition is met, and if it is not, then an exception is thrown. A typical assertion might looks something like this: -(void) setWidth: (int) theWidth { [Assert

问题 We need to generate LINQ queries which are 100% unknown during coding (design time). This is because the logic is available in our framework which is 100% separated from any data projects. For data we use LLBLGen generated data access code. Normally by using invokes on the DLL, which we specify to the framework (not reference) we can create code to retrieve data. But now we need to do this by linq. How could we create a query like: var q = from customer in m.Customer select new { customer

问题 I have a ashx file in a asp.net web project. It has a code behind cs file. The cs file is compiled into project dll & deployed to production. I found no way to dynamically change the cs file without deploying the whole project dll. I have been putting c# code into aspx (not .cs) file, after deployment, I can make change to a single aspx file, and deploy, IIS can dynamically compile & merge with its code behind c# code. Can I do the similar thing with ashx file? Here is a quote from MSDN. http

问题 Is there a way to have a user menu that changes according to the permissions assigned to the user group a user belongs to? I am thinking of something that checks for these permissions at the view level, and also removes menu options a user does not have permission to. 回答1: Yes it is possible to access the user object in the template and check if the user is staff like this: {% if user.is_staff %} <li> <a href="/admin/">Admin</a> </li> {% endif %} This would be an example where your menu where

问题 Is there a way to have a user menu that changes according to the permissions assigned to the user group a user belongs to? I am thinking of something that checks for these permissions at the view level, and also removes menu options a user does not have permission to. 回答1: Yes it is possible to access the user object in the template and check if the user is staff like this: {% if user.is_staff %} <li> <a href="/admin/">Admin</a> </li> {% endif %} This would be an example where your menu where