dynamic-data

问题 I would like to build the hierarchy dynamically with each node created as a layer/level in the hierarchy having its own array of nodes. THIS SHOULD FORM A TREE STRUCTURE.There should be a root node, and an undefined number of nodes and levels to make up the hierarchy size. Nothing should be fixed besides the root node. I do not need to read or search the hierarchy, I need to construct it. The array should start {"name" : "A", "children" : []} and every new node as levels would be created {

问题 Typically a dynamic linq query with string can use a substitution value such as: result = db.Persons.Where("Name == @1", "John"); I have an unknown number of strings that I want to pass into the Where clause. I have no problem with integers, but the API cannot seem to handle a string without a substitution value. Does anyone know a way around this? I created a concatenated string for my Where statement, so I can add "@1" or whatever, but I cannot add parameters to the Where() so I am stuck.

问题 Using ASP.NET Dynamic Data with a LINQ to SQL DataContext from the Northwind Database... When I add a DisplayColumn Attribute to one of my LINQ to SQL entity classes and reference a property from my custom code in the partial class, I lose the ability to sort by that column in the generated GridViews . I continue to lose the ability to sort even if I reference a non-custom property as the sortColumn . Why is this happening? Example Code: [DisplayColumn("LastNameFirstName", "LastName", false)]

问题 Using F2Py to compile Fortran routines being suitable to be used within Python , the following piece of code is successfully compiled configured gfortran as the compiler while using F2Py , however, at the time of invoking in Python it raises a runtime error! Any comments and solutions? function select(x) result(y) implicit none integer,intent(in):: x(:) integer:: i,j,temp(size(x)) integer,allocatable:: y(:) j = 0 do i=1,size(x) if (x(i)/=0) then j = j+1 temp(j) = x(i) endif enddo allocate(y(j

问题 Problem Background Generating and accessing data of a fixed column layout is easy. You can create local temp tables up-front, and populate them by calling stored procedures. On the other hand, if you want to generate data with a dynamic column layout, you must generally build an SQL statement dynamically and execute it with "exec sp_executesql". Since the data layout is unknown at run-time, you cannot create a temp-table up-front, and once inside the "exec sp_executesql" statement, any

问题 Looking for a scalable, flexible and fast database design for 'Build your own form' style website - e.g Wufoo. Rules: User has only 1 Form they can build User can create their own fields or choose from 'standard' fields User's 1 Form has as many fields as the user wants Values can be the sibling of another value E.g A photo value could have name, location, width, height as sibling values Special Rules: User can submit their form a maximum of 5 times a day Value's Date is important Flexibility

问题 The following code represent the data that will be shown in a pie chart visualization in javascript. <script type="text/javascript"> var agg = { label: 'Aggressive', pct: [60, 10, 6, 30, 14, 10] }, bal = { label: 'Balanced', pct: [24, 7, 2, 18, 13, 36] }, mod = { label: 'Moderate', pct: [12, 4, 2, 10, 11, 61] }, inc = { label: 'Income', pct: [ 0, 0, 0, 0, 0,100] }, </script> I would like to have the pct values as php variables, and not fixed as in the code above. How do I do this? I would

问题 I have to add either an embed tag for Firefox or an object tag for Internet Explorer with JavaScript to address the appropriate ActiveX / Plugin depending on the browser. The plugin could be missing and needs to get downloaded in this case. The dynamically added embed tag for Firefox works as expected. The dynamically added object tag for Internet Explorer seems to do nothing at all. The object tag needs the following attributes to function properly. id ="SomeId" classid = "CLSID:{GUID}"

问题 I have 'ProductType' column filtered, but it still is in data grid. If I apply ScaffoldColumn(false) filtering feature will disappear... How to hide column and keep filtering option? Thanks. 回答1: I think you may need something like this : [Display(Name = "Product Type", AutoGenerateFilter = true, AutoGenerateField = false)] public object ProductType { get; set; } Or, you'll need to extend the Metadata for that column. Steve Naughton shows how here. 来源： https://stackoverflow.com/questions

问题 I have an ASP.NET Dynamic Data application that includes two tables, Departments and KPI's . When I capture KPI's, on the 'List' view, I set the Department field of the dynamic filter to e.g. 'Plant 1', but when I add a new KPI, I still have to select 'Plant 1' in a dropdown. Is there any way I can cause the dropdown in the 'Insert' view to correspond to the dropdown in the dynamic filter? I can just see users filtering on 'Plant 1', and assuming any KPI's they add will fall under 'Plant 1'.