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ControlBuilder.NeedsTagInnerText Method

Determines if the control builder needs to get its inner text. If so, the SetTagInnerText method must be called. This method is called by the ASP.NET page framework.

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

public virtual bool NeedsTagInnerText()

Return Value

Type: System.Boolean
true if the control builder needs to get its inner text. The default is false.

The inner text is the text between the opening and closing tags of the control.

This method is called by the ASP.NET page framework during parsing and is not intended to be called directly in you code.

The following example uses the InDesigner property when the NeedsTagInnerText method is called. When a control has this builder attached to it, the NeedsTagInnerText determines whether the control is being accessed at design-time through a designer. The NeedsTagInnerText returns the value of the InDesigner property, and then the SetTagInnerText method is called. If the InDesigner property is set to false, an Exception is thrown. Otherwise, the inner text of the control is returned on the SetTagInnerText call.

	[AspNetHostingPermission(SecurityAction.Demand, 
		Level=AspNetHostingPermissionLevel.Minimal)]
	public sealed class MyControlControlBuilder : ControlBuilder
	{
		private string _innerText;

		public override bool NeedsTagInnerText()
		{
			return InDesigner;
		}

		public override void SetTagInnerText(string text)
		{
			if (!InDesigner)
				throw new Exception("The control is not in design mode.");
			else
				_innerText = text;
		}
	}

.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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