AutoGeneratedFieldProperties.DataField 属性

定义

命名空间:

System.Web.UI.WebControls

程序集:

System.Web.dll

获取或设置绑定到 AutoGeneratedField 对象的字段的名称。

public:
 property System::String ^ DataField { System::String ^ get(); void set(System::String ^ value); };

public string DataField { get; set; }

member this.DataField : string with get, set

Public Property DataField As String

属性值

String

绑定到 AutoGeneratedField 的字段的名称。 默认值为空字符串 ("")，表示尚未设置此属性。

示例

下面的代码示例演示如何使用 DataField 属性来确定用于设置 DataField 对象的 属性 AutoGeneratedField 的值。

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

注解

DataField使用 属性指定要绑定到AutoGeneratedField对象的数据字段的名称。 对象 AutoGeneratedField 根据 Type 属性自动显示相应控件中的值。 例如， Boolean 值显示在复选框控件中，而 String 值显示为纯文本。

另请参阅

• DataField
• Name