ControlBuilder.ControlType 屬性

定義

命名空間:

System.Web.UI

組件:

System.Web.dll

取得所要建立的控制項的 Type。

public:
 property Type ^ ControlType { Type ^ get(); };

public Type ControlType { get; }

member this.ControlType : Type

Public ReadOnly Property ControlType As Type

屬性值

Type

要建立的控制項的 Type。

範例

本範例會 OnAppendToParentBuilder 覆寫 方法來檢查 ControlType 屬性，以判斷套用此產生器的控制項類型。 CustomTextBox如果是 ，則產生器會檢查 屬性的值 HasAspCode 是否包含在 控制項中。 如果是，則會擲回例外狀況，如果不是呼叫 方法，則會 HasBody 擲回例外狀況。

using System;
using System.Web.UI;
using System.Web;
using System.Security.Permissions;

namespace ASPNET.Samples
{
    [
    AspNetHostingPermission(SecurityAction.Demand,
        Level=AspNetHostingPermissionLevel.Minimal)
    ]
    public class AppendControlBuilder : ControlBuilder
    {
        // Override the OnAppendToParentBuilder method.
        public override void OnAppendToParentBuilder(ControlBuilder parentBuilder)
        {
            // Check whether the type of the control this builder
            // is applied to is CustomTextBox. If so, check whether
            // ASP code blocks exist in the control. If so, call
            // throw an Exception, if not, call the HasBody method.        
            if (ControlType == Type.GetType("CustomTextBox"))
            {
                if (HasAspCode)
                    throw new Exception("This control cannot contain code blocks.");
                else
                    HasBody();
            }
        }
    }
}

Imports System.Web.UI
Imports System.Web
Imports System.Security.Permissions

Namespace ASPNET.Samples

   <AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
   Public NotInheritable Class AppendControlBuilder
      Inherits ControlBuilder

      ' Override the OnAppendToParentBuilder method.
      Overrides Public Sub OnAppendToParentBuilder( _
         ByVal parentBuilder As ControlBuilder _
      )
            ' Check whether the type of the control this builder
            ' is applied to is CustomTextBox. If so, check whether
            ' ASP code blocks exist in the control. If so, call
            ' throw an Exception, if not, call the HasBody method.        
            If ControlType Is Type.GetType("CustomTextBox") Then
                If HasAspCode = True Then
                    Throw New Exception("This control cannot contain code blocks.")
                Else
                    HasBody()
                End If
            End If

        End Sub

   End Class

End Namespace

另請參閱

• Type