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aspnet46 modelbinding
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| <%-- | |
| Web Forms page calling a select method to model bind to a list of students. | |
| The GridView uses Model Binding to bind to Student type in your app. | |
| To use Async Model Binding, mark your page with Async=True attribute. | |
| --%> | |
| <%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.Master" Async="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication226._Default" %> | |
| <asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" runat="server"> | |
| <asp:GridView runat="server" ID="studentsGrid" | |
| ItemType="ContosoUniversityModelBinding.Models.Student" DataKeyNames="StudentID" | |
| SelectMethod="studentsGrid_GetData" | |
| UpdateMethod="studentsGrid_UpdateItem" | |
| DeleteMethod="studentsGrid_DeleteItem" | |
| AutoGenerateEditButton="true" | |
| AutoGenerateDeleteButton="true" | |
| AllowSorting="true" AllowPaging="true" PageSize="4" | |
| AutoGenerateColumns="false"> | |
| <Columns> | |
| <asp:DynamicField DataField="StudentID" /> | |
| <asp:DynamicField DataField="LastName" /> | |
| <asp:DynamicField DataField="FirstName" /> | |
| <asp:DynamicField DataField="Year" /> | |
| <asp:TemplateField HeaderText="Total Credits"> | |
| <ItemTemplate> | |
| <asp:Label Text="<%# Item.Enrollments.Sum(en => en.Course.Credits) %>" | |
| runat="server" /> | |
| </ItemTemplate> | |
| </asp:TemplateField> | |
| </Columns> | |
| </asp:GridView> | |
| <br /> | |
| <br /> | |
| </asp:Content> | |
| //Async method for Select | |
| public async Task<SelectResult> studentsGrid_GetData(int startRowIndex, int maximumRows) | |
| { | |
| SchoolContext db = new SchoolContext(); | |
| var query = db.Students.Include(s => s.Enrollments.Select(e => e.Course)); | |
| SelectResult result = new SelectResult(query.Count(), | |
| await query | |
| .SortBy("StudentID") | |
| .Skip(startRowIndex) | |
| .Take(maximumRows) | |
| .ToListAsync()); | |
| return result; | |
| } |
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Line 4, Async=true is misspelled.