MetaModel.Tables Property

Reference

Definition

Namespace:: System.Web.DynamicData

Assembly:: System.Web.DynamicData.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets a collection of all the tables that are part of the data model.

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)

Property Value

ReadOnlyCollection<MetaTable>

A collection that contains the tables that belong to the data model.

Examples

The following example shows how to use the Tables and VisibleTables properties to perform the following tasks:

Get a collection of all the tables in a data model and show them in a GridView control.
Get a collection of the visible tables in a data model and show them in a GridView control.

The example consists of a page and its code-behind file.

<%@ 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

Remarks

The collection contains all the tables in the data model, which includes the tables that are not visible (are not part of Dynamic Data scaffolding).

Run an online example of this feature.

Applies to

Dela via