AutoGeneratedField.DataType Properti

Definisi

Ruang nama:

System.Web.UI.WebControls

Rakitan:

System.Web.dll

Mendapatkan atau mengatur jenis data nilai yang ditampilkan dalam AutoGeneratedField objek.

public:
 property Type ^ DataType { Type ^ get(); void set(Type ^ value); };

public Type DataType { get; set; }

member this.DataType : Type with get, set

Public Property DataType As Type

Nilai Properti

Type

Type yang mewakili jenis data nilai yang ditampilkan dalam AutoGeneratedField objek. Defaultnya adalah String.

Contoh

Contoh berikut menunjukkan cara menggunakan DataType properti untuk menentukan jenis data nilai bidang saat membuat AutoGeneratedField objek secara terprogram dalam kontrol kustom yang berasal dari DetailsView kontrol.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Security.Permissions;
using System.Web;

namespace Samples.AspNet.CS.Controls
{

    [AspNetHostingPermission(SecurityAction.Demand, Level=AspNetHostingPermissionLevel.Minimal)]
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    public class SimpleCustomControl : DetailsView
    {

        protected override AutoGeneratedField CreateAutoGeneratedRow(AutoGeneratedFieldProperties fieldProperties)
        {

            // Create an AutoGeneratedField object.
            AutoGeneratedField field = new AutoGeneratedField(fieldProperties.DataField);

            // Set the properties of the AutoGeneratedField using
            // the values from the AutoGeneratedFieldProperties
            // object contained in the fieldProperties parameter.
            ((IStateManager)field).TrackViewState();
            field.HeaderText = fieldProperties.Name;
            field.SortExpression = fieldProperties.Name;
            field.ReadOnly = fieldProperties.IsReadOnly;
            field.DataType = fieldProperties.Type;

            return field;
        }
    }
}

Imports System.ComponentModel
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Security.Permissions
Imports System.Web

Namespace Samples.AspNet.VB.Controls

    <AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal), AspNetHostingPermission(SecurityAction.InheritanceDemand, Level:=AspNetHostingPermissionLevel.Minimal)> Public Class SimpleCustomControl
        Inherits System.Web.UI.WebControls.DetailsView

        Protected Overrides Function CreateAutoGeneratedRow(ByVal fieldProperties As AutoGeneratedFieldProperties) As AutoGeneratedField

            ' Create an AutoGeneratedField object.
            Dim field As New AutoGeneratedField(fieldProperties.DataField)

            ' Set the properties of the AutoGeneratedField using
            ' the values from the AutoGeneratedFieldProperties 
            ' object contained in the fieldProperties parameter.
            CType(field, IStateManager).TrackViewState()
            field.HeaderText = fieldProperties.Name
            field.SortExpression = fieldProperties.Name
            field.ReadOnly = fieldProperties.IsReadOnly
            field.DataType = fieldProperties.Type

            Return field

        End Function

    End Class

End Namespace

Keterangan

DataType Gunakan properti untuk menentukan jenis data nilai yang AutoGeneratedField ditampilkan dalam objek. Jenis data menentukan jenis kontrol apa yang dirender dalam AutoGeneratedField objek untuk menampilkan nilai. Misalnya, kontrol kotak centang ditampilkan saat jenisnya adalah Boolean.

Lihat juga

• Type