MetaModel.Tables Propiedad

Definición

Obtiene una colección de todas las tablas que forman parte del modelo de datos.

public:
 property System::Collections::ObjectModel::ReadOnlyCollection<System::Web::DynamicData::MetaTable ^> ^ Tables { System::Collections::ObjectModel::ReadOnlyCollection<System::Web::DynamicData::MetaTable ^> ^ get(); };
public System.Collections.ObjectModel.ReadOnlyCollection<System.Web.DynamicData.MetaTable> Tables { get; }
member this.Tables : System.Collections.ObjectModel.ReadOnlyCollection<System.Web.DynamicData.MetaTable>
Public ReadOnly Property Tables As ReadOnlyCollection(Of MetaTable)

Valor de propiedad

Colección que contiene las tablas que pertenecen al modelo de datos.

Ejemplos

En el ejemplo siguiente se muestra cómo usar las Tables propiedades y VisibleTables para realizar las siguientes tareas:

  • Obtenga una colección de todas las tablas de un modelo de datos y muéstralas en un GridView control .

  • Obtenga una colección de las tablas visibles en un modelo de datos y muéstralas en un GridView control .

El ejemplo consta de una página y su archivo de código subyacente.

<%@ Page Language="C#" AutoEventWireup="true" 
CodeFile="TablesMenu.aspx.cs" 
Inherits="TablesMenu" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
  <title></title>
</head>
<body>
    <h2>Tables</h2>

    <form runat="server">
   
        <h4>Visible Tables</h4>
        <asp:GridView ID="Menu1" runat="server" 
        AutoGenerateColumns="false">
            <Columns>
                <asp:TemplateField HeaderText="Table Name" SortExpression="TableName">
                    <ItemTemplate>
                        <asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%#Eval("ListActionPath") %>'><%#Eval("DisplayName") %></asp:HyperLink>
                    </ItemTemplate>
                </asp:TemplateField>
               
            </Columns>
        </asp:GridView>
 
         <h4>Tables in the Data Model</h4>
        <asp:GridView ID="Menu2" runat="server" 
        AutoGenerateColumns="false">
            <Columns>
                <asp:TemplateField HeaderText="Table Name" SortExpression="TableName">
                    <ItemTemplate>
                        <asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%#Eval("ListActionPath") %>'><%#Eval("DisplayName") %></asp:HyperLink>
                    </ItemTemplate>
                </asp:TemplateField>
               
            </Columns>
        </asp:GridView>
        
    </form>
    
</body>
<%@ Page Language="VB" AutoEventWireup="true" 
CodeFile="TablesMenu.aspx.vb" 
Inherits="_TablesMenu" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
  <title></title>
</head>
<body>
    <h2>Tables</h2>

    <form id="Form1" runat="server">
   
        <h4>Visible Tables</h4>
        <asp:GridView ID="Menu1" runat="server" 
        AutoGenerateColumns="false">
            <Columns>
                <asp:TemplateField HeaderText="Table Name" SortExpression="TableName">
                    <ItemTemplate>
                        <asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%#Eval("ListActionPath") %>'><%#Eval("DisplayName") %></asp:HyperLink>
                    </ItemTemplate>
                </asp:TemplateField>
               
            </Columns>
        </asp:GridView>
 
         <h4>Tables in the Data Model</h4>
        <asp:GridView ID="Menu2" runat="server" 
        AutoGenerateColumns="false">
            <Columns>
                <asp:TemplateField HeaderText="Table Name" SortExpression="TableName">
                    <ItemTemplate>
                        <asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%#Eval("ListActionPath") %>'><%#Eval("DisplayName") %></asp:HyperLink>
                    </ItemTemplate>
                </asp:TemplateField>
               
            </Columns>
        </asp:GridView>
        
    </form>
    
</body>
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Web.DynamicData;
using System.Text;

public partial class TablesMenu : System.Web.UI.Page
{
     protected void Page_Load(object sender, EventArgs e) {
     
         GetVisibleTables();
         GetTables();
    }

    // Gets all the tables in the data model.
    protected void GetTables()
    {
         System.Collections.IList tables = 
             MetaModel.Default.Tables;
         if (tables.Count == 0)
         {
             throw new InvalidOperationException(
                 "There are no tables in the data model.");
         }
         Menu2.DataSource = tables;
         Menu2.DataBind();
     }

    // Gets only the visible tables in the data model.
    protected void GetVisibleTables()
    {
         System.Collections.IList visibleTables =
             MetaModel.Default.VisibleTables;
         if (visibleTables.Count == 0)
         {
             throw new InvalidOperationException(
                 "There are no accessible tables. Make sure that at least one data model is registered in Global.asax and scaffolding is enabled or implement custom pages.");
         }
         Menu1.DataSource = visibleTables;
         Menu1.DataBind();
    }
}
Imports System.Collections
Imports System.Configuration
Imports System.Data
Imports System.Linq
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.HtmlControls
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Xml.Linq
Imports System.Web.DynamicData
Imports System.Text

Partial Public Class _TablesMenu
    Inherits System.Web.UI.Page

    'Protected Sub Page_Init(ByVal sender As Object, ByVal e As EventArgs)
    '    GetVisibleTables()
    '    GetTables()
    'End Sub
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)

        'Dim visibleTables As System.Collections.IList = MetaModel.Default.VisibleTables
        'If (visibleTables.Count = 0) Then
        '    Throw New InvalidOperationException("There are no accessible tables. Make sure that at least one data model is registered in Global.asax a" & _
        '        "nd scaffolding is enabled or implement custom pages.")
        'End If
        'Menu1.DataSource = visibleTables
        'Menu1.DataBind()

        GetVisibleTables()
        GetTables()

    End Sub

    ' Gets all the tables in the data model.
    Protected Sub GetTables()
        Dim tables As System.Collections.IList = MetaModel.[Default].Tables
        If tables.Count = 0 Then
            Throw New InvalidOperationException("There are no tables in the data model.")
        End If
        Menu2.DataSource = tables
        Menu2.DataBind()
    End Sub

    ' Gets only the visible tables in the data model.
    Protected Sub GetVisibleTables()
        Dim visibleTables As System.Collections.IList = MetaModel.[Default].VisibleTables
        If visibleTables.Count = 0 Then
            Throw New InvalidOperationException("There are no accessible tables. Make sure that at least one data model is registered in Global.asax and scaffolding is enabled or implement custom pages.")
        End If
        Menu1.DataSource = visibleTables
        Menu1.DataBind()
    End Sub
End Class

Comentarios

La colección contiene todas las tablas del modelo de datos, que incluye las tablas que no están visibles (no forman parte del scaffolding de datos dinámicos).

Ejecute un ejemplo en línea de esta característica.

Se aplica a