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ControlBuilder.HasAspCode Property

Gets a value indicating whether the control contains any code blocks.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

public virtual bool HasAspCode { get; }

Property Value

Type: System.Boolean
true if the control contains at least one code block; otherwise, false.

This example overrides the OnAppendToParentBuilder method to check the ControlType property to determine what type of control this builder is applied to. If it is a CustomTextBox, the builder checks whether the value of the HasAspCode property is included in the control. If so, an exception is thrown, if not the HasBody method is called.

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();
			}
		}
	}
}

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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