Asp.net GridView使用LINQ填充數據DataSource

Question

如何使用LINQ數據源將數據填充到GridView中。 目前我正在使用本手冊，其代碼如下。

這裏是我的代碼：

<asp:GridView ID="gridProcesses" runat="server" AutoGenerateColumns="False" 
EnableModelValidation="True" Width="400px" DataKeyNames="ID"> 
    <Columns> 
     <asp:BoundField HeaderText="Name" /> 
     <asp:BoundField HeaderText="CPU" /> 
     <asp:BoundField HeaderText="RAM" /> 
     <asp:CommandField ButtonType="Button" SelectText="Kill" ShowSelectButton="True"> 
     <ItemStyle HorizontalAlign="Center" Width="30px" /> 
     </asp:CommandField> 
    </Columns> 
</asp:GridView> 

代碼背後

public partial class OsControl : System.Web.UI.UserControl 
{ 
    protected void Page_Load(object sender, EventArgs e) 
    { 

    } 

    private List<string> getTestData() 
    { 
     List<string> tData = new List<string>(); 
     Random rand = new Random(); 
     for (int i = 0; i < 10; i++) 
     { 
      tData.Add("proc" + i + "_" + rand.Next(100) + "_" + rand.Next(100)); 
     } 

     return tData; 
    } 

    protected void btnLoad_Click(object sender, EventArgs e) 
    { 
     DataTable dtProcesses = new DataTable(); 
     dtProcesses.Columns.Add("Name", System.Type.GetType("System.String")); 
     dtProcesses.Columns.Add("CPU", System.Type.GetType("System.Int32")); 
     dtProcesses.Columns.Add("RAM", System.Type.GetType("System.Int32")); 
     dtProcesses.Columns.Add("ID", System.Type.GetType("System.Int32")); 

     int id = 0; 
     foreach (string line in getTestData()) 
     { 
      string[] items = line.Split('_'); 
      DataRow row = dtProcesses.NewRow(); 
      row["Name"] = items[0]; 
      row["CPU"] = int.Parse(items[1]); 
      row["RAM"] = int.Parse(items[1]); 
      row["ID"] = id++; 
      dtProcesses.Rows.Add(row); 
     } 

     gridProcesses.DataSource = dtProcesses; 
     gridProcesses.DataBind(); 
    } 
}- 

Answer 1

以下斯科特Guthrie的博客文章應該可以幫助您：

LINQ to SQL (Part 5 - Binding UI using the ASP:LinqDataSource Control)