ControlBuilder.GetChildControlType(String, IDictionary) Method

Definition

Namespace:

System.Web.UI

Assembly:

System.Web.dll

Obtains the Type of the control type corresponding to a child tag. This method is called by the ASP.NET page framework.

C#

public virtual Type GetChildControlType(string tagName, System.Collections.IDictionary attribs);

Parameters

tagName

String

The tag name of the child.

attribs

IDictionary

An array of attributes contained in the child control.

Returns

Type

The Type of the specified control's child.

Examples

C#

// Create a custom ControlBuilder that interprets nested elements
// named myitem as TextBoxes. If this class is called in a 
// ControlBuilderAttribute applied to a custom control, when
// that control is created in a page and it contains child elements
// that are named myitem, the child elements will be rendered as 
// TextBox server controls. This control builder also ignores literal
// strings between elements when it is associated with a control.
[AspNetHostingPermission(SecurityAction.Demand, 
   Level=AspNetHostingPermissionLevel.Minimal)]
public sealed class MyItemControlBuilder : ControlBuilder 
{
   // Override the GetChildControlType method to detect
   // child elements named myitem.
   public override Type GetChildControlType(String tagName,
                                     IDictionary attributes)
   {
      if (String.Compare(tagName, "myitem", true) == 0) 
      {
         return typeof(TextBox);
      }
      return null;
   }

   // Override the AppendLiteralString method so that literal
   // text between rows of controls are ignored.  
   public override void AppendLiteralString(string s) 
   {
     // Ignores literals between rows.
   }
}

Remarks

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

Applies to